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Full vulnerability report · 2026
CVE-2026-31570High confidence

can: gw: fix OOB heap access in cgw_csum_crc8_rel()

Linux · Linux

8.8HighCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 20 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.41% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Linux Linux and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 20 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

24 package states
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 20 affected package states shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.12.85-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.1.170-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.19.11-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.19.11-1Debian Security Tracker ↗Source updated 6 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinuxAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-awsAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azureAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-fdeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-nvidiaAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gcpAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gkeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gkeopAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-ibmAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-lowlatencyAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidiaAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-lowlatencyAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-tegraAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oem-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oracleAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspiAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-riscvAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-xilinxAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2026-31570 · CSAF 2.0 · revision 20 · interimSUSE Product Security TeamCVE-2026-31570
17 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SUSE Linux Micro Extras 6.2:kernel-obs-build
  • SUSE Linux Micro Extras 6.2:kernel-syms
  • SLES 15 SP1 CHOST Images for Amazon EC2
  • SLES 15 SP2 CHOST Images for Amazon EC2
  • SLES 15 SP3 CHOST Images for Amazon EC2
  • SLES 15 SP4 CHOST Images for Amazon EC2
  • SLES 15 SP5 CHOST Images for Amazon EC2
  • SLES 15 SP1 CHOST Images for Google
  • SLES 15 SP2 CHOST Images for Google
  • SLES 15 SP3 CHOST Images for Google
  • SLES 15 SP4 CHOST Images for Google
  • SLES 15 SP5 CHOST Images for Google
Summary
In the Linux kernel, the following vulnerability has been resolved: can: gw: fix OOB heap access in cgw_csum_crc8_rel() cgw_csum_crc8_rel() correctly computes bounds-safe indices via calc_idx(): int from = calc_idx(crc8->from_idx, cf->len); int to = calc_idx(crc8->to_idx, cf->len); int res = calc_idx(crc8->result_idx, cf->len); if (from from_idx; ...) /* BUG: raw negative index */ cf->data[crc8->result_idx] = ...; /* BUG: raw negative index */ With from_idx = to_idx = result_idx = -64 on a 64-byte CAN FD frame, calc_idx(-64, 64) = 0 so the guard passes, but the loop iterates with i = -64, reading cf->data[-64], and the write goes to cf->data[-64]. This write might end up to 56 (7.0-rc) or 40 (<= 6.19) bytes before the start of the canfd_frame on the heap. The companion function cgw_csum_xor_rel() uses `from`/`to`/`res` correctly throughout; fix cgw_csum_crc8_rel() to match. Confirmed with KASAN on linux-7.0-rc2: BUG: KASAN: slab-out-of-bounds in cgw_csum_crc8_rel+0x515/0x5b0 Read of size 1 at addr ffff8880076619c8 by task poc_cgw_oob/62 To configure the can-gw crc8 checksums CAP_NET_ADMIN is needed.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-25463

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 20 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: can: gw: fix OOB heap access in cgw_csum_crc8_rel() cgw_csum_crc8_rel() correctly computes bounds-safe indices via calc_idx(): int from = calc_idx(crc8->from_idx, cf->len); int to = calc_idx(crc8->to_idx, cf->len); int res = calc_idx(crc8->result_idx, cf->len); if (from < 0 || to < 0 || res < 0) return; However, the loop and the result write then use the raw s8 fields directly instead of the computed variables: for (i = crc8->from_idx; ...) /* BUG: raw negative index */ cf->data[crc8->result_idx] = ...; /* BUG: raw negative index */ With from_idx = to_idx = result_idx = -64 on a 64-byte CAN FD frame, calc_idx(-64, 64) = 0 so the guard passes, but the loop iterates with i = -64, reading cf->data[-64], and the write goes to cf->data[-64]. This write might end up to 56 (7.0-rc) or 40 (<= 6.19) bytes before the start of the canfd_frame on the heap. The companion function cgw_csum_xor_rel() uses `from`/`to`/`res` correctly throughout; fix cgw_csum_crc8_rel() to match. Confirmed with KASAN on linux-7.0-rc2: BUG: KASAN: slab-out-of-bounds in cgw_csum_crc8_rel+0x515/0x5b0 Read of size 1 at addr ffff8880076619c8 by task poc_cgw_oob/62 To configure the can-gw crc8 checksums CAP_NET_ADMIN is needed.

What

In the Linux kernel, the following vulnerability has been resolved: can: gw: fix OOB heap access in cgw_csum_crc8_rel() cgw_csum_crc8_rel() correctly computes bounds-safe indices via calc_idx(): int from = calc_idx(crc8->from_idx, cf->len); int to = calc_idx(crc8->to_idx, cf->len); int res = calc_idx(crc8->result_idx, cf->len); if (from < 0 || to < 0 || res < 0) return; However, the loop and the result write then use the raw s8 fields directly instead of the computed variables: for (i = crc8->from_idx; ...) /* BUG: raw negative index */ cf->data[crc8->result_idx] = ...; /* BUG: raw negative index */ With from_idx = to_idx = result_idx = -64 on a 64-byte CAN FD frame, calc_idx(-64, 64) = 0 so the guard passes, but the loop iterates with i = -64, reading cf->data[-64], and the write goes to cf->data[-64]. This write might end up to 56 (7.0-rc) or 40 (<= 6.19) bytes before the start of the canfd_frame on the heap. The companion function cgw_csum_xor_rel() uses `from`/`to`/`res` correctly throughout; fix cgw_csum_crc8_rel() to match. Confirmed with KASAN on linux-7.0-rc2: BUG: KASAN: slab-out-of-bounds in cgw_csum_crc8_rel+0x515/0x5b0 Read of size 1 at addr ffff8880076619c8 by task poc_cgw_oob/62 To configure the can-gw crc8 checksums CAP_NET_ADMIN is needed.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

In the Linux kernel, the following vulnerability has been resolved: can: gw: fix OOB heap access in cgw_csum_crc8_rel() cgw_csum_crc8_rel() correctly computes bounds-safe indices via calc_idx(): int from = calc_idx(crc8->from_idx, cf->len); int to = calc_idx(crc8->to_idx, cf->len); int res = calc_idx(crc8->result_idx, cf->len); if (from < 0 || to < 0 || res < 0) return; However, the loop and the result write then use the raw s8 fields directly instead of the computed variables: for (i = crc8->from_idx; ...) /* BUG: raw negative index */ cf->data[crc8->result_idx] = ...; /* BUG: raw negative index */ With from_idx = to_idx = result_idx = -64 on a 64-byte CAN FD frame, calc_idx(-64, 64) = 0 so the guard passes, but the loop iterates with i = -64, reading cf->data[-64], and the write goes to cf->data[-64]. This write might end up to 56 (7.0-rc) or 40 (<= 6.19) bytes before the start of the canfd_frame on the heap. The companion function cgw_csum_xor_rel() uses `from`/`to`/`res` correctly throughout; fix cgw_csum_crc8_rel() to match. Confirmed with KASAN on linux-7.0-rc2: BUG: KASAN: slab-out-of-bounds in cgw_csum_crc8_rel+0x515/0x5b0 Read of size 1 at addr ffff8880076619c8 by task poc_cgw_oob/62 To configure the can-gw crc8 checksums CAP_NET_ADMIN is needed.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
an adjacent network → Out-of-bounds Read → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Adjacent
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-125 ↗

CWE-125: Out-of-bounds Read. The product reads data past the end, or before the beginning, of the intended buffer.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVAdjacentAttack vector: The attacker must be on an adjacent or logically close network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
UnauthenticatedCWE-125
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2026-1279Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, welche zu einem Denial-of-Service-Zustand, einer Rechteausweitung, der Ausführung von Code oder einer Speicherbeschädigung führen könnten.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260429Security Bulletin 29 Apr 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 29 Apr 2026, published on 29 April 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1229Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-31545 Référence CVE CVE-2026-31546 https://www.cve.org/CVERecord?id=CVE-2026-31546 Référence CVE CVE-2026-31549 https://www.cve.org/CVERecord?id=CVE-2026-31549 Référence CVE CVE-2026-31550 https://www.cve.org/CVERecord?id=CVE-2026-31550 Référence CVE CVE-2026-31551 https://www.cve.org/CVERecord?id=CVE-2026-31551 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 Référence CVE CVE-2026-31555 https://www.cve.org/CVERecord?id=CVE-2026-31555 Référence CVE CVE-2026-31560 https://www.cve.org/CVERecord?id=CVE-2026-31560 Référence CVE CVE-2026-31565 https://www.cve.org/CVERecord?id=CVE-2026-31565 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31576 https://www.cve.org/CVERecord?id=CVE-2026-31576 Référence CVE CVE-2026-31577 https://www.cve.org/CVERecord?id=CVE-2026-31577 Référence CVE CVE-2026-31578 https://www.cve.org/CVERecord?id=CVE-2026-31578 Référence CVE CVE-2026-31580 https://www.cve.org/CVERecord?id=CVE-2026-31580 Référence CVE CVE-2026-31581 https://www.cve.org/CVERecord?id=CVE-2026-31581 Référence CVE CVE-2026-31583 https://www.cve.org/CVERecord?id=CVE-2026-31583 Référence CVE CVE-2026-31585 https://www.cve.org/CVERecord?id=CVE-2026-31585 Référence CVE CVE-2026-31586 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1093Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-31540 Référence CVE CVE-2026-31545 https://www.cve.org/CVERecord?id=CVE-2026-31545 Référence CVE CVE-2026-31546 https://www.cve.org/CVERecord?id=CVE-2026-31546 Référence CVE CVE-2026-31549 https://www.cve.org/CVERecord?id=CVE-2026-31549 Référence CVE CVE-2026-31550 https://www.cve.org/CVERecord?id=CVE-2026-31550 Référence CVE CVE-2026-31551 https://www.cve.org/CVERecord?id=CVE-2026-31551 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 Référence CVE CVE-2026-31555 https://www.cve.org/CVERecord?id=CVE-2026-31555 Référence CVE CVE-2026-31565 https://www.cve.org/CVERecord?id=CVE-2026-31565 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31576 https://www.cve.org/CVERecord?id=CVE-2026-31576 Référence CVE CVE-2026-31577 https://www.cve.org/CVERecord?id=CVE-2026-31577 Référence CVE CVE-2026-31578 https://www.cve.org/CVERecord?id=CVE-2026-31578 Référence CVE CVE-2026-31580 https://www.cve.org/CVERecord?id=CVE-2026-31580 Référence CVE CVE-2026-31581 https://www.cve.org/CVERecord?id=CVE-2026-31581 Référence CVE CVE-2026-31583 https://www.cve.org/CVERecord?id=CVE-2026-31583 Référence CVE CVE-2026-31585 https://www.cve.org/CVERecord?id=CVE-2026-31585 Référence CVE CVE-2026-31586 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1066Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-31551 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 Référence CVE CVE-2026-31554 https://www.cve.org/CVERecord?id=CVE-2026-31554 Référence CVE CVE-2026-31555 https://www.cve.org/CVERecord?id=CVE-2026-31555 Référence CVE CVE-2026-31556 https://www.cve.org/CVERecord?id=CVE-2026-31556 Référence CVE CVE-2026-31557 https://www.cve.org/CVERecord?id=CVE-2026-31557 Référence CVE CVE-2026-31563 https://www.cve.org/CVERecord?id=CVE-2026-31563 Référence CVE CVE-2026-31565 https://www.cve.org/CVERecord?id=CVE-2026-31565 Référence CVE CVE-2026-31566 https://www.cve.org/CVERecord?id=CVE-2026-31566 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31575 https://www.cve.org/CVERecord?id=CVE-2026-31575 Référence CVE CVE-2026-31576 https://www.cve.org/CVERecord?id=CVE-2026-31576 Référence CVE CVE-2026-31577 https://www.cve.org/CVERecord?id=CVE-2026-31577 Référence CVE CVE-2026-31578 https://www.cve.org/CVERecord?id=CVE-2026-31578 Référence CVE CVE-2026-31580 https://www.cve.org/CVERecord?id=CVE-2026-31580 Référence CVE CVE-2026-31581 https://www.cve.org/CVERecord?id=CVE-2026-31581 Référence CVE CVE-2026-31582 https://www.cve.org/CVERecord?id=CVE-2026-31582 Référence CVE CVE-2026-31583 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1064Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-31542 Référence CVE CVE-2026-31545 https://www.cve.org/CVERecord?id=CVE-2026-31545 Référence CVE CVE-2026-31548 https://www.cve.org/CVERecord?id=CVE-2026-31548 Référence CVE CVE-2026-31549 https://www.cve.org/CVERecord?id=CVE-2026-31549 Référence CVE CVE-2026-31551 https://www.cve.org/CVERecord?id=CVE-2026-31551 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 Référence CVE CVE-2026-31557 https://www.cve.org/CVERecord?id=CVE-2026-31557 Référence CVE CVE-2026-31561 https://www.cve.org/CVERecord?id=CVE-2026-31561 Référence CVE CVE-2026-31566 https://www.cve.org/CVERecord?id=CVE-2026-31566 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31576 https://www.cve.org/CVERecord?id=CVE-2026-31576 Référence CVE CVE-2026-31578 https://www.cve.org/CVERecord?id=CVE-2026-31578 Référence CVE CVE-2026-31581 https://www.cve.org/CVERecord?id=CVE-2026-31581 Référence CVE CVE-2026-31582 https://www.cve.org/CVERecord?id=CVE-2026-31582 Référence CVE CVE-2026-31583 https://www.cve.org/CVERecord?id=CVE-2026-31583 Référence CVE CVE-2026-31585 https://www.cve.org/CVERecord?id=CVE-2026-31585 Référence CVE CVE-2026-31587 https://www.cve.org/CVERecord?id=CVE-2026-31587 Référence CVE CVE-2026-31590 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0985Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-31540 Référence CVE CVE-2026-31545 https://www.cve.org/CVERecord?id=CVE-2026-31545 Référence CVE CVE-2026-31546 https://www.cve.org/CVERecord?id=CVE-2026-31546 Référence CVE CVE-2026-31549 https://www.cve.org/CVERecord?id=CVE-2026-31549 Référence CVE CVE-2026-31550 https://www.cve.org/CVERecord?id=CVE-2026-31550 Référence CVE CVE-2026-31551 https://www.cve.org/CVERecord?id=CVE-2026-31551 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 Référence CVE CVE-2026-31555 https://www.cve.org/CVERecord?id=CVE-2026-31555 Référence CVE CVE-2026-31565 https://www.cve.org/CVERecord?id=CVE-2026-31565 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31576 https://www.cve.org/CVERecord?id=CVE-2026-31576 Référence CVE CVE-2026-31577 https://www.cve.org/CVERecord?id=CVE-2026-31577 Référence CVE CVE-2026-31578 https://www.cve.org/CVERecord?id=CVE-2026-31578 Référence CVE CVE-2026-31580 https://www.cve.org/CVERecord?id=CVE-2026-31580 Référence CVE CVE-2026-31581 https://www.cve.org/CVERecord?id=CVE-2026-31581 Référence CVE CVE-2026-31583 https://www.cve.org/CVERecord?id=CVE-2026-31583 Référence CVE CVE-2026-31585 https://www.cve.org/CVERecord?id=CVE-2026-31585 Référence CVE CVE-2026-31586 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0956Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-31492 Référence CVE CVE-2026-31495 https://www.cve.org/CVERecord?id=CVE-2026-31495 Référence CVE CVE-2026-31499 https://www.cve.org/CVERecord?id=CVE-2026-31499 Référence CVE CVE-2026-31502 https://www.cve.org/CVERecord?id=CVE-2026-31502 Référence CVE CVE-2026-31503 https://www.cve.org/CVERecord?id=CVE-2026-31503 Référence CVE CVE-2026-31505 https://www.cve.org/CVERecord?id=CVE-2026-31505 Référence CVE CVE-2026-31533 https://www.cve.org/CVERecord?id=CVE-2026-31533 Référence CVE CVE-2026-31555 https://www.cve.org/CVERecord?id=CVE-2026-31555 Référence CVE CVE-2026-31560 https://www.cve.org/CVERecord?id=CVE-2026-31560 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31580 https://www.cve.org/CVERecord?id=CVE-2026-31580 Référence CVE CVE-2026-31586 https://www.cve.org/CVERecord?id=CVE-2026-31586 Référence CVE CVE-2026-31596 https://www.cve.org/CVERecord?id=CVE-2026-31596 Référence CVE CVE-2026-31646 https://www.cve.org/CVERecord?id=CVE-2026-31646 Référence CVE CVE-2026-31647 https://www.cve.org/CVERecord?id=CVE-2026-31647 Référence CVE CVE-2026-31663 https://www.cve.org/CVERecord?id=CVE-2026-31663 Référence CVE CVE-2026-31664 https://www.cve.org/CVERecord?id=CVE-2026-31664 Référence CVE CVE-2026-31665 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0954Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-31551 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 Référence CVE CVE-2026-31554 https://www.cve.org/CVERecord?id=CVE-2026-31554 Référence CVE CVE-2026-31555 https://www.cve.org/CVERecord?id=CVE-2026-31555 Référence CVE CVE-2026-31556 https://www.cve.org/CVERecord?id=CVE-2026-31556 Référence CVE CVE-2026-31557 https://www.cve.org/CVERecord?id=CVE-2026-31557 Référence CVE CVE-2026-31563 https://www.cve.org/CVERecord?id=CVE-2026-31563 Référence CVE CVE-2026-31565 https://www.cve.org/CVERecord?id=CVE-2026-31565 Référence CVE CVE-2026-31566 https://www.cve.org/CVERecord?id=CVE-2026-31566 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31574 https://www.cve.org/CVERecord?id=CVE-2026-31574 Référence CVE CVE-2026-31575 https://www.cve.org/CVERecord?id=CVE-2026-31575 Référence CVE CVE-2026-31576 https://www.cve.org/CVERecord?id=CVE-2026-31576 Référence CVE CVE-2026-31577 https://www.cve.org/CVERecord?id=CVE-2026-31577 Référence CVE CVE-2026-31578 https://www.cve.org/CVERecord?id=CVE-2026-31578 Référence CVE CVE-2026-31579 https://www.cve.org/CVERecord?id=CVE-2026-31579 Référence CVE CVE-2026-31580 https://www.cve.org/CVERecord?id=CVE-2026-31580 Référence CVE CVE-2026-31581 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0927Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-31548 Référence CVE CVE-2026-31549 https://www.cve.org/CVERecord?id=CVE-2026-31549 Référence CVE CVE-2026-31551 https://www.cve.org/CVERecord?id=CVE-2026-31551 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 Référence CVE CVE-2026-31555 https://www.cve.org/CVERecord?id=CVE-2026-31555 Référence CVE CVE-2026-31560 https://www.cve.org/CVERecord?id=CVE-2026-31560 Référence CVE CVE-2026-31561 https://www.cve.org/CVERecord?id=CVE-2026-31561 Référence CVE CVE-2026-31566 https://www.cve.org/CVERecord?id=CVE-2026-31566 Référence CVE CVE-2026-31568 https://www.cve.org/CVERecord?id=CVE-2026-31568 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31576 https://www.cve.org/CVERecord?id=CVE-2026-31576 Référence CVE CVE-2026-31578 https://www.cve.org/CVERecord?id=CVE-2026-31578 Référence CVE CVE-2026-31580 https://www.cve.org/CVERecord?id=CVE-2026-31580 Référence CVE CVE-2026-31581 https://www.cve.org/CVERecord?id=CVE-2026-31581 Référence CVE CVE-2026-31583 https://www.cve.org/CVERecord?id=CVE-2026-31583 Référence CVE CVE-2026-31585 https://www.cve.org/CVERecord?id=CVE-2026-31585 Référence CVE CVE-2026-31586 https://www.cve.org/CVERecord?id=CVE-2026-31586 Référence CVE CVE-2026-31587 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0926Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-31551 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 Référence CVE CVE-2026-31554 https://www.cve.org/CVERecord?id=CVE-2026-31554 Référence CVE CVE-2026-31555 https://www.cve.org/CVERecord?id=CVE-2026-31555 Référence CVE CVE-2026-31556 https://www.cve.org/CVERecord?id=CVE-2026-31556 Référence CVE CVE-2026-31557 https://www.cve.org/CVERecord?id=CVE-2026-31557 Référence CVE CVE-2026-31563 https://www.cve.org/CVERecord?id=CVE-2026-31563 Référence CVE CVE-2026-31565 https://www.cve.org/CVERecord?id=CVE-2026-31565 Référence CVE CVE-2026-31566 https://www.cve.org/CVERecord?id=CVE-2026-31566 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31574 https://www.cve.org/CVERecord?id=CVE-2026-31574 Référence CVE CVE-2026-31575 https://www.cve.org/CVERecord?id=CVE-2026-31575 Référence CVE CVE-2026-31576 https://www.cve.org/CVERecord?id=CVE-2026-31576 Référence CVE CVE-2026-31577 https://www.cve.org/CVERecord?id=CVE-2026-31577 Référence CVE CVE-2026-31578 https://www.cve.org/CVERecord?id=CVE-2026-31578 Référence CVE CVE-2026-31579 https://www.cve.org/CVERecord?id=CVE-2026-31579 Référence CVE CVE-2026-31580 https://www.cve.org/CVERecord?id=CVE-2026-31580 Référence CVE CVE-2026-31581 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0900Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2025-71089 Référence CVE CVE-2026-23255 https://www.cve.org/CVERecord?id=CVE-2026-23255 Référence CVE CVE-2026-23393 https://www.cve.org/CVERecord?id=CVE-2026-23393 Référence CVE CVE-2026-23451 https://www.cve.org/CVERecord?id=CVE-2026-23451 Référence CVE CVE-2026-31462 https://www.cve.org/CVERecord?id=CVE-2026-31462 Référence CVE CVE-2026-31499 https://www.cve.org/CVERecord?id=CVE-2026-31499 Référence CVE CVE-2026-31502 https://www.cve.org/CVERecord?id=CVE-2026-31502 Référence CVE CVE-2026-31505 https://www.cve.org/CVERecord?id=CVE-2026-31505 Référence CVE CVE-2026-31533 https://www.cve.org/CVERecord?id=CVE-2026-31533 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31580 https://www.cve.org/CVERecord?id=CVE-2026-31580 Référence CVE CVE-2026-31586 https://www.cve.org/CVERecord?id=CVE-2026-31586 Référence CVE CVE-2026-31592 https://www.cve.org/CVERecord?id=CVE-2026-31592 Référence CVE CVE-2026-31670 https://www.cve.org/CVERecord?id=CVE-2026-31670 Référence CVE CVE-2026-31677 https://www.cve.org/CVERecord?id=CVE-2026-31677 Référence CVE CVE-2026-31680 https://www.cve.org/CVERecord?id=CVE-2026-31680 Référence CVE CVE-2026-31685 https://www.cve.org/CVERecord?id=CVE-2026-31685 Référence CVE CVE-2026-31758 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0697Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-31519 Référence CVE CVE-2026-31525 https://www.cve.org/CVERecord?id=CVE-2026-31525 Référence CVE CVE-2026-31526 https://www.cve.org/CVERecord?id=CVE-2026-31526 Référence CVE CVE-2026-31528 https://www.cve.org/CVERecord?id=CVE-2026-31528 Référence CVE CVE-2026-31533 https://www.cve.org/CVERecord?id=CVE-2026-31533 Référence CVE CVE-2026-31547 https://www.cve.org/CVERecord?id=CVE-2026-31547 Référence CVE CVE-2026-31550 https://www.cve.org/CVERecord?id=CVE-2026-31550 Référence CVE CVE-2026-31554 https://www.cve.org/CVERecord?id=CVE-2026-31554 Référence CVE CVE-2026-31565 https://www.cve.org/CVERecord?id=CVE-2026-31565 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31579 https://www.cve.org/CVERecord?id=CVE-2026-31579 Référence CVE CVE-2026-31586 https://www.cve.org/CVERecord?id=CVE-2026-31586 Référence CVE CVE-2026-31588 https://www.cve.org/CVERecord?id=CVE-2026-31588 Référence CVE CVE-2026-31602 https://www.cve.org/CVERecord?id=CVE-2026-31602 Référence CVE CVE-2026-31607 https://www.cve.org/CVERecord?id=CVE-2026-31607 Référence CVE CVE-2026-31622 https://www.cve.org/CVERecord?id=CVE-2026-31622 Référence CVE CVE-2026-31644 https://www.cve.org/CVERecord?id=CVE-2026-31644 Référence CVE CVE-2026-31649 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0696Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-31515 Référence CVE CVE-2026-31518 https://www.cve.org/CVERecord?id=CVE-2026-31518 Référence CVE CVE-2026-31523 https://www.cve.org/CVERecord?id=CVE-2026-31523 Référence CVE CVE-2026-31524 https://www.cve.org/CVERecord?id=CVE-2026-31524 Référence CVE CVE-2026-31545 https://www.cve.org/CVERecord?id=CVE-2026-31545 Référence CVE CVE-2026-31546 https://www.cve.org/CVERecord?id=CVE-2026-31546 Référence CVE CVE-2026-31550 https://www.cve.org/CVERecord?id=CVE-2026-31550 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 Référence CVE CVE-2026-31555 https://www.cve.org/CVERecord?id=CVE-2026-31555 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31628 https://www.cve.org/CVERecord?id=CVE-2026-31628 Référence CVE CVE-2026-31649 https://www.cve.org/CVERecord?id=CVE-2026-31649 Référence CVE CVE-2026-31651 https://www.cve.org/CVERecord?id=CVE-2026-31651 Référence CVE CVE-2026-31658 https://www.cve.org/CVERecord?id=CVE-2026-31658 Référence CVE CVE-2026-31659 https://www.cve.org/CVERecord?id=CVE-2026-31659 Référence CVE CVE-2026-31660 https://www.cve.org/CVERecord?id=CVE-2026-31660 Référence CVE CVE-2026-31661 https://www.cve.org/CVERecord?id=CVE-2026-31661 Référence CVE CVE-2026-31662 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0547Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-31548 Référence CVE CVE-2026-31549 https://www.cve.org/CVERecord?id=CVE-2026-31549 Référence CVE CVE-2026-31550 https://www.cve.org/CVERecord?id=CVE-2026-31550 Référence CVE CVE-2026-31551 https://www.cve.org/CVERecord?id=CVE-2026-31551 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 Référence CVE CVE-2026-31555 https://www.cve.org/CVERecord?id=CVE-2026-31555 Référence CVE CVE-2026-31563 https://www.cve.org/CVERecord?id=CVE-2026-31563 Référence CVE CVE-2026-31565 https://www.cve.org/CVERecord?id=CVE-2026-31565 Référence CVE CVE-2026-31566 https://www.cve.org/CVERecord?id=CVE-2026-31566 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31628 https://www.cve.org/CVERecord?id=CVE-2026-31628 Référence CVE CVE-2026-31634 https://www.cve.org/CVERecord?id=CVE-2026-31634 Référence CVE CVE-2026-31649 https://www.cve.org/CVERecord?id=CVE-2026-31649 Référence CVE CVE-2026-31651 https://www.cve.org/CVERecord?id=CVE-2026-31651 Référence CVE CVE-2026-31656 https://www.cve.org/CVERecord?id=CVE-2026-31656 Référence CVE CVE-2026-31657 https://www.cve.org/CVERecord?id=CVE-2026-31657 Référence CVE CVE-2026-31658 https://www.cve.org/CVERecord?id=CVE-2026-31658 Référence CVE CVE-2026-31659 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0548Multiples vulnérabilités dans le noyau Linux de Debian

d?id=CVE-2026-31555 Référence CVE CVE-2026-31556 https://www.cve.org/CVERecord?id=CVE-2026-31556 Référence CVE CVE-2026-31557 https://www.cve.org/CVERecord?id=CVE-2026-31557 Référence CVE CVE-2026-31558 https://www.cve.org/CVERecord?id=CVE-2026-31558 Référence CVE CVE-2026-31559 https://www.cve.org/CVERecord?id=CVE-2026-31559 Référence CVE CVE-2026-31561 https://www.cve.org/CVERecord?id=CVE-2026-31561 Référence CVE CVE-2026-31563 https://www.cve.org/CVERecord?id=CVE-2026-31563 Référence CVE CVE-2026-31565 https://www.cve.org/CVERecord?id=CVE-2026-31565 Référence CVE CVE-2026-31566 https://www.cve.org/CVERecord?id=CVE-2026-31566 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31575 https://www.cve.org/CVERecord?id=CVE-2026-31575 Référence CVE CVE-2026-31576 https://www.cve.org/CVERecord?id=CVE-2026-31576 Référence CVE CVE-2026-31577 https://www.cve.org/CVERecord?id=CVE-2026-31577 Référence CVE CVE-2026-31578 https://www.cve.org/CVERecord?id=CVE-2026-31578 Référence CVE CVE-2026-31580 https://www.cve.org/CVERecord?id=CVE-2026-31580 Référence CVE CVE-2026-31581 https://www.cve.org/CVERecord?id=CVE-2026-31581 Référence CVE CVE-2026-31582 https://www.cve.org/CVERecord?id=CVE-2026-31582 Référence CVE CVE-2026-31583 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0519Multiples vulnérabilités dans Microsoft Azure Linux

sécurité Microsoft CVE-2026-31523 du 23 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31524 du 23 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31525 du 23 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31528 du 23 avril 2026 Bulletin de sécurité Microsoft CVE-2026-41989 du 24 avril 2026 Bulletin de sécurité Microsoft CVE-2026-23360 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-23414 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31555 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31565 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31566 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31570 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31589 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31591 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31593 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31600 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31601 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31608 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31609 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31620 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31621 du 26 avril 2026 Bulletin de sécurité Microsoft CVE-2026-31674 du 26 avril 2026 Bu

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-013277LinuxのLinux Kernelにおける境界外読み取りに関する脆弱性

Linuxカーネルにおいて、以下の脆弱性が修正されました。can: gw: cgw_csum_crc8_rel()におけるヒープの範囲外アクセスの修正です。cgw_csum_crc8_rel()はcalc_idx()を通じて境界安全なインデックスを正しく計算しています。int from = calc_idx(crc8-from_idx, cf-len); int to = calc_idx(crc8-to_idx, cf-len); int res = calc_idx(crc8-result_idx, cf-len); if (from 0 || to 0 || res 0) return; しかしながら、その後のループと結果の書き込みにおいては、計算済みの変数ではなく、生のs8フィールドが直接使用されています。for (i = crc8-from_idx; ...) /* バグ: 生の負のインデックス */ cf-data[crc8-result_idx] = ...; /* バグ: 生の負のインデックス */ from_idx = to_idx = result_idx = -64で64バイトのCAN FDフレームの場合、calc_idx(-64, 64) = 0となり、ガードは通過しますが、ループはi = -64で繰り返され、cf-data[-64]を読み込み、書き込みもcf-data[-64]に対して行われます。この書き込みはヒープ上のcanfd_frameの開始位置より56バイト（7.0-rc）または40バイト（6.19以下）前の領域に及ぶ可能性があります。対応関数cgw_csum_xor_rel()は`from`/`to`/`res`を適切に使用しているため、cgw_csum_crc8_rel()もこれに合わせて修正されました。linux-7.0-rc2のKASANにより以下のように確認されています。BUG: KASAN: slab-out-of-bounds in cgw_csum_crc8_rel+0x515/0x5b0 Read of size 1 at addr ffff8880076619c8 by task poc_cgw_oob/62 can-gwのcrc8チェックサムを設定するにはCAP_NET_ADMIN権限が必要です。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
Linux: < 5.4, 5.10.253 ≤ 5.10.*, 5.15.203 ≤ 5.15.*, 6.1.168 ≤ 6.1.*, 6.6.131 ≤ 6.6.*, 6.12.80 ≤ 6.12.*, 6.18.21 ≤ 6.18.*, 6.19.11 ≤ 6.19.*, 7.0 ≤ *
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 24 Apr 2026 · Last source change 5 Aug 2026, 12:23 UTC · CWE-125 · Out-of-bounds Read

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-25463
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceNIST NVD
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-25463↗Vendor CSAF · SUSE Product Security Team↗CVE authority or vendor reference↗Patch or update reference↗Patch or update reference↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-31570 · cve.blacktree.nl