Full vulnerability report · 2026

CVE-2026-53111High confidence

bpf: test_run: Fix the null pointer dereference issue in bpf_lwt_xmit_push_encap

Linux · Linux

5.5MediumCVSS 3.1

Recommended action

Patch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. 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

Operational reassessment

Published severity in operational context

Open reassessment dashboard →

Published severityMediumOperational priority:Low, lowered one band.downgradedsince 24 Jun 2026

Evidence used

No CISA KEV confirmation is currently recorded.
Exploitation requires an existing local or physical foothold with privileges.
EPSS is 0.12% 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

Confirm that the asset runs Linux Linux and falls inside the recorded affected range.
Verify the installed build against the product-specific fixed version after deployment.
Validate exposure, authentication requirements and compensating controls in the actual environment.
Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.

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.

Canonical Ubuntu Security: 20 affected package states with no published fix

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 release	Source package	Vendor state	Fixed version	Evidence
Debian trixietrixie · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`6.12.94-1`	Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`6.1.176-1`	Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`7.0.10-1`	Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`7.0.10-1`	Debian Security Tracker ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-aws`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure-fde`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure-nvidia`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gcp`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gke`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gkeop`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-ibm`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-lowlatency`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia-lowlatency`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia-tegra`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oem-6.11`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oracle`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-raspi`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-raspi-realtime`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-realtime`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-riscv`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-xilinx`	Affected, 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 feed`	Canonical 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-2026-53111 · CSAF 2.0 · revision 11 · interimSUSE Product Security TeamCVE-2026-53111

247 known affected

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

kernel-default as component of SUSE Linux Enterprise Desktop 15 SP7
kernel-default-extra as component of SUSE Linux Enterprise Desktop 15 SP7
kernel-source as component of SUSE Linux Enterprise Desktop 15 SP7
cluster-md-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
dlm-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
gfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
kernel-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
kernel-source as component of SUSE Linux Enterprise High Availability Extension 15 SP7
ocfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
kernel-default as component of SUSE Linux Enterprise High Availability Extension 16.0
kernel-source as component of SUSE Linux Enterprise High Availability Extension 16.0
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP2

Summary: In the Linux kernel, the following vulnerability has been resolved: bpf: test_run: Fix the null pointer dereference issue in bpf_lwt_xmit_push_encap The bpf_lwt_xmit_push_encap helper needs to access skb_dst(skb)->dev to calculate the needed headroom: err = skb_cow_head(skb, len + LL_RESERVED_SPACE(skb_dst(skb)->dev)); But skb->_skb_refdst may not be initialized when the skb is set up by bpf_prog_test_run_skb function. Executing bpf_lwt_push_ip_encap function in this scenario will trigger null pointer dereference, causing a kernel crash as Yinhao reported: [ 105.186365] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 105.186382] #PF: supervisor read access in kernel mode [ 105.186388] #PF: error_code(0x0000) - not-present page [ 105.186393] PGD 121d3d067 P4D 121d3d067 PUD 106c83067 PMD 0 [ 105.186404] Oops: 0000 [#1] PREEMPT SMP NOPTI [ 105.186412] CPU: 3 PID: 3250 Comm: poc Kdump: loaded Not tainted 6.19.0-rc5 #1 [ 105.186423] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 105.186427] RIP: 0010:bpf_lwt_push_ip_encap+0x1eb/0x520 [ 105.186443] Code: 0f 84 de 01 00 00 0f b7 4a 04 66 85 c9 0f 85 47 01 00 00 31 c0 5b 5d 41 5c 41 5d 41 5e c3 cc cc cc cc 48 8b 73 58 48 83 e6 fe 8b 36 0f b7 be ec 00 00 00 0f b7 b6 e6 00 00 00 01 fe 83 e6 f0 [ 105.186449] RSP: 0018:ffffbb0e0387bc50 EFLAGS: 00010246 [ 105.186455] RAX: 000000000000004e RBX: ffff94c74e036500 RCX: ffff94c74874da00 [ 105.186460] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff94c74e036500 [ 105.186463] RBP: 0000000000000001 R08: 0000000000000002 R09: 0000000000000000 [ 105.186467] R10: ffffbb0e0387bd50 R11: 0000000000000000 R12: ffffbb0e0387bc98 [ 105.186471] R13: 0000000000000014 R14: 0000000000000000 R15: 0000000000000002 [ 105.186484] FS: 00007f166aa4d680(0000) GS:ffff94c8b7780000(0000) knlGS:0000000000000000 [ 105.186490] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.186494] CR2: 0000000000000000 CR3: 000000015eade001 CR4: 0000000000770ee0 [ 105.186499] PKRU: 55555554 [ 105.186502] Call Trace: [ 105.186507] [ 105.186513] bpf_lwt_xmit_push_encap+0x2b/0x40 [ 105.186522] bpf_prog_a75eaad51e517912+0x41/0x49 [ 105.186536] ? kvm_clock_get_cycles+0x18/0x30 [ 105.186547] ? ktime_get+0x3c/0xa0 [ 105.186554] bpf_test_run+0x195/0x320 [ 105.186563] ? bpf_test_run+0x10f/0x320 [ 105.186579] bpf_prog_test_run_skb+0x2f5/0x4f0 [ 105.186590] __sys_bpf+0x69c/0xa40 [ 105.186603] __x64_sys_bpf+0x1e/0x30 [ 105.186611] do_syscall_64+0x59/0x110 [ 105.186620] entry_SYSCALL_64_after_hwframe+0x76/0xe0 [ 105.186649] RIP: 0033:0x7f166a97455d Temporarily add the setting of skb->_skb_refdst before bpf_test_run to resolve the issue.
Remediation: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

Recommended actionPatch only the product branches with a verified fix

Fix availability varies by product

What, why and how

In the Linux kernel, the following vulnerability has been resolved: bpf: test_run: Fix the null pointer dereference issue in bpf_lwt_xmit_push_encap The bpf_lwt_xmit_push_encap helper needs to access skb_dst(skb)->dev to calculate the needed headroom: err = skb_cow_head(skb, len + LL_RESERVED_SPACE(skb_dst(skb)->dev)); But skb->_skb_refdst may not be initialized when the skb is set up by bpf_prog_test_run_skb function. Executing bpf_lwt_push_ip_encap function in this scenario will trigger null pointer dereference, causing a kernel crash as Yinhao reported: [ 105.186365] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 105.186382] #PF: supervisor read access in kernel mode [ 105.186388] #PF: error_code(0x0000) - not-present page [ 105.186393] PGD 121d3d067 P4D 121d3d067 PUD 106c83067 PMD 0 [ 105.186404] Oops: 0000 [#1] PREEMPT SMP NOPTI [ 105.186412] CPU: 3 PID: 3250 Comm: poc Kdump: loaded Not tainted 6.19.0-rc5 #1 [ 105.186423] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 105.186427] RIP: 0010:bpf_lwt_push_ip_encap+0x1eb/0x520 [ 105.186443] Code: 0f 84 de 01 00 00 0f b7 4a 04 66 85 c9 0f 85 47 01 00 00 31 c0 5b 5d 41 5c 41 5d 41 5e c3 cc cc cc cc 48 8b 73 58 48 83 e6 fe <48> 8b 36 0f b7 be ec 00 00 00 0f b7 b6 e6 00 00 00 01 fe 83 e6 f0 [ 105.186449] RSP: 0018:ffffbb0e0387bc50 EFLAGS: 00010246 [ 105.186455] RAX: 000000000000004e RBX: ffff94c74e036500 RCX: ffff94c74874da00 [ 105.186460] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff94c74e036500 [ 105.186463] RBP: 0000000000000001 R08: 0000000000000002 R09: 0000000000000000 [ 105.186467] R10: ffffbb0e0387bd50 R11: 0000000000000000 R12: ffffbb0e0387bc98 [ 105.186471] R13: 0000000000000014 R14: 0000000000000000 R15: 0000000000000002 [ 105.186484] FS: 00007f166aa4d680(0000) GS:ffff94c8b7780000(0000) knlGS:0000000000000000 [ 105.186490] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.186494] CR2: 0000000000000000 CR3: 000000015eade001 CR4: 0000000000770ee0 [ 105.186499] PKRU: 55555554 [ 105.186502] Call Trace: [ 105.186507] <TASK> [ 105.186513] bpf_lwt_xmit_push_encap+0x2b/0x40 [ 105.186522] bpf_prog_a75eaad51e517912+0x41/0x49 [ 105.186536] ? kvm_clock_get_cycles+0x18/0x30 [ 105.186547] ? ktime_get+0x3c/0xa0 [ 105.186554] bpf_test_run+0x195/0x320 [ 105.186563] ? bpf_test_run+0x10f/0x320 [ 105.186579] bpf_prog_test_run_skb+0x2f5/0x4f0 [ 105.186590] __sys_bpf+0x69c/0xa40 [ 105.186603] __x64_sys_bpf+0x1e/0x30 [ 105.186611] do_syscall_64+0x59/0x110 [ 105.186620] entry_SYSCALL_64_after_hwframe+0x76/0xe0 [ 105.186649] RIP: 0033:0x7f166a97455d Temporarily add the setting of skb->_skb_refdst before bpf_test_run to resolve the issue.

What

Why

The product dereferences a pointer that it expects to be valid but is NULL.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

What

Why

The product dereferences a pointer that it expects to be valid but is NULL.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

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: local access → NULL Pointer Dereference → disrupt the affected service
Attack surface: Local
Privileges required: Low: a basic authenticated account is required
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-476 ↗
CWE-476: NULL Pointer Dereference. The product dereferences a pointer that it expects to be valid but is NULL.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land: The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.

Denial of serviceCWE-476

Official authority intelligence

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

ENISA EUVD · EUVD-2026-38979Official EUVD mapping

0 linked advisory records.

Official EUVD record ↗

BSI · German · WID-SEC-2026-2077Linux Kernel: Mehrere Schwachstellen

Ein entfernter Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um Sicherheitsvorkehrungen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen und weitere, nicht näher spezifizierte Auswirkungen zu erzielen.

Official advisory ↗

Cyber Security Agency of Singapore · English · CSA-SB-20260701Security Bulletin 1 July 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 1 July 2026, published on 1 July 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1252Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53102 Référence CVE CVE-2026-53103 https://www.cve.org/CVERecord?id=CVE-2026-53103 Référence CVE CVE-2026-53104 https://www.cve.org/CVERecord?id=CVE-2026-53104 Référence CVE CVE-2026-53105 https://www.cve.org/CVERecord?id=CVE-2026-53105 Référence CVE CVE-2026-53106 https://www.cve.org/CVERecord?id=CVE-2026-53106 Référence CVE CVE-2026-53107 https://www.cve.org/CVERecord?id=CVE-2026-53107 Référence CVE CVE-2026-53108 https://www.cve.org/CVERecord?id=CVE-2026-53108 Référence CVE CVE-2026-53109 https://www.cve.org/CVERecord?id=CVE-2026-53109 Référence CVE CVE-2026-53110 https://www.cve.org/CVERecord?id=CVE-2026-53110 Référence CVE CVE-2026-53111 https://www.cve.org/CVERecord?id=CVE-2026-53111 Référence CVE CVE-2026-53112 https://www.cve.org/CVERecord?id=CVE-2026-53112 Référence CVE CVE-2026-53113 https://www.cve.org/CVERecord?id=CVE-2026-53113 Référence CVE CVE-2026-53114 https://www.cve.org/CVERecord?id=CVE-2026-53114 Référence CVE CVE-2026-53115 https://www.cve.org/CVERecord?id=CVE-2026-53115 Référence CVE CVE-2026-53116 https://www.cve.org/CVERecord?id=CVE-2026-53116 Référence CVE CVE-2026-53117 https://www.cve.org/CVERecord?id=CVE-2026-53117 Référence CVE CVE-2026-53118 https://www.cve.org/CVERecord?id=CVE-2026-53118 Référence CVE CVE-2026-53119 https://www.cve.org/CVERecord?id=

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1255Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53076 Référence CVE CVE-2026-53077 https://www.cve.org/CVERecord?id=CVE-2026-53077 Référence CVE CVE-2026-53089 https://www.cve.org/CVERecord?id=CVE-2026-53089 Référence CVE CVE-2026-53091 https://www.cve.org/CVERecord?id=CVE-2026-53091 Référence CVE CVE-2026-53092 https://www.cve.org/CVERecord?id=CVE-2026-53092 Référence CVE CVE-2026-53094 https://www.cve.org/CVERecord?id=CVE-2026-53094 Référence CVE CVE-2026-53096 https://www.cve.org/CVERecord?id=CVE-2026-53096 Référence CVE CVE-2026-53109 https://www.cve.org/CVERecord?id=CVE-2026-53109 Référence CVE CVE-2026-53110 https://www.cve.org/CVERecord?id=CVE-2026-53110 Référence CVE CVE-2026-53111 https://www.cve.org/CVERecord?id=CVE-2026-53111 Référence CVE CVE-2026-53114 https://www.cve.org/CVERecord?id=CVE-2026-53114 Référence CVE CVE-2026-53126 https://www.cve.org/CVERecord?id=CVE-2026-53126 Référence CVE CVE-2026-53129 https://www.cve.org/CVERecord?id=CVE-2026-53129 Référence CVE CVE-2026-53142 https://www.cve.org/CVERecord?id=CVE-2026-53142 Référence CVE CVE-2026-53154 https://www.cve.org/CVERecord?id=CVE-2026-53154 Référence CVE CVE-2026-53163 https://www.cve.org/CVERecord?id=CVE-2026-53163 Référence CVE CVE-2026-53180 https://www.cve.org/CVERecord?id=CVE-2026-53180 Référence CVE CVE-2026-53207 https://www.cve.org/CVERecord?id=

Official advisory ↗

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

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1202Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53034 Référence CVE CVE-2026-53059 https://www.cve.org/CVERecord?id=CVE-2026-53059 Référence CVE CVE-2026-53076 https://www.cve.org/CVERecord?id=CVE-2026-53076 Référence CVE CVE-2026-53077 https://www.cve.org/CVERecord?id=CVE-2026-53077 Référence CVE CVE-2026-53089 https://www.cve.org/CVERecord?id=CVE-2026-53089 Référence CVE CVE-2026-53091 https://www.cve.org/CVERecord?id=CVE-2026-53091 Référence CVE CVE-2026-53094 https://www.cve.org/CVERecord?id=CVE-2026-53094 Référence CVE CVE-2026-53096 https://www.cve.org/CVERecord?id=CVE-2026-53096 Référence CVE CVE-2026-53110 https://www.cve.org/CVERecord?id=CVE-2026-53110 Référence CVE CVE-2026-53111 https://www.cve.org/CVERecord?id=CVE-2026-53111 Référence CVE CVE-2026-53126 https://www.cve.org/CVERecord?id=CVE-2026-53126 Référence CVE CVE-2026-53133 https://www.cve.org/CVERecord?id=CVE-2026-53133 Référence CVE CVE-2026-53142 https://www.cve.org/CVERecord?id=CVE-2026-53142 Référence CVE CVE-2026-53154 https://www.cve.org/CVERecord?id=CVE-2026-53154 Référence CVE CVE-2026-53163 https://www.cve.org/CVERecord?id=CVE-2026-53163 Référence CVE CVE-2026-53180 https://www.cve.org/CVERecord?id=CVE-2026-53180 Référence CVE CVE-2026-53182 https://www.cve.org/CVERecord?id=CVE-2026-53182 Référence CVE CVE-2026-53207 https://www.cve.org/CVERecord?id=

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1162Multiples vulnérabilités dans le noyau Linux d'Ubuntu

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1164Multiples vulnérabilités dans le noyau Linux de SUSE

Official advisory ↗

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

Official advisory ↗

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

Official advisory ↗

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

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-0866Multiples vulnérabilités dans Microsoft Azure Linux

u 27 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53077 du 27 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53082 du 27 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53086 du 27 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53088 du 27 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53093 du 27 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53094 du 27 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53096 du 27 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53110 du 27 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53111 du 27 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53112 du 27 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53126 du 27 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53128 du 27 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53287 du 28 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53289 du 28 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53291 du 28 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53293 du 28 juin 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53295 du 28 juin 2026 Bulletin de sécurité Microsoft Azure Linu

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-0862Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-53075 Référence CVE CVE-2026-53077 https://www.cve.org/CVERecord?id=CVE-2026-53077 Référence CVE CVE-2026-53080 https://www.cve.org/CVERecord?id=CVE-2026-53080 Référence CVE CVE-2026-53082 https://www.cve.org/CVERecord?id=CVE-2026-53082 Référence CVE CVE-2026-53086 https://www.cve.org/CVERecord?id=CVE-2026-53086 Référence CVE CVE-2026-53088 https://www.cve.org/CVERecord?id=CVE-2026-53088 Référence CVE CVE-2026-53093 https://www.cve.org/CVERecord?id=CVE-2026-53093 Référence CVE CVE-2026-53096 https://www.cve.org/CVERecord?id=CVE-2026-53096 Référence CVE CVE-2026-53101 https://www.cve.org/CVERecord?id=CVE-2026-53101 Référence CVE CVE-2026-53111 https://www.cve.org/CVERecord?id=CVE-2026-53111 Référence CVE CVE-2026-53112 https://www.cve.org/CVERecord?id=CVE-2026-53112 Référence CVE CVE-2026-53128 https://www.cve.org/CVERecord?id=CVE-2026-53128 Référence CVE CVE-2026-53130 https://www.cve.org/CVERecord?id=CVE-2026-53130 Référence CVE CVE-2026-53131 https://www.cve.org/CVERecord?id=CVE-2026-53131 Référence CVE CVE-2026-53133 https://www.cve.org/CVERecord?id=CVE-2026-53133 Référence CVE CVE-2026-53134 https://www.cve.org/CVERecord?id=CVE-2026-53134 Référence CVE CVE-2026-53135 https://www.cve.org/CVERecord?id=CVE-2026-53135 Référence CVE CVE-2026-53136 https://www.cve.org/CVERecord?id=

Official advisory ↗

JVN iPedia · Japanese · JVNDB-2026-025013LinuxのLinux KernelにおけるNULL ポインタデリファレンスに関する脆弱性

Linuxカーネルにおいて、以下の脆弱性が修正されました：bpf: test_run: bpf_lwt_xmit_push_encapにおけるヌルポインタ参照の問題を修正しました。bpf_lwt_xmit_push_encapヘルパーは、必要なヘッドルームを計算するためにskb_dst(skb)-＞devへアクセスする必要があります。具体的には、 err = skb_cow_head(skb, len + LL_RESERVED_SPACE(skb_dst(skb)-＞dev));しかし、skbはbpf_prog_test_run_skb関数によってセットアップされる際に、skb-＞_skb_refdstが初期化されていない可能性があります。この状態でbpf_lwt_push_ip_encap関数を実行するとヌルポインタ参照が発生し、Yinhao氏が報告したようにカーネルクラッシュが引き起こされます。ログには以下のようなエラーが記録されます：[ 105.186365] BUG: kernel NULL pointer dereference, address: 0000000000000000[ 105.186382] #PF: supervisor read access in kernel mode[ 105.186388] #PF: error_code(0x0000) - not-present page[ 105.186393] PGD 121d3d067 P4D 121d3d067 PUD 106c83067 PMD 0[ 105.186404] Oops: 0000 [#1] PREEMPT SMP NOPTI[ 105.186412] CPU: 3 PID: 3250 Comm: poc Kdump: loaded Not tainted 6.19.0-rc5 #1[ 105.186423] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014[ 105.186427] RIP: 0010:bpf_lwt_push_ip_encap+0x1eb/0x520[ 105.186443] Code: ...問題を解決するために、bpf_test_runの前に一時的にskb-＞_skb_refdstの設定を追加しました。

Official advisory ↗

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: kernel-default as component of SUSE Linux Enterprise Desktop 15 SP7
kernel-default-extra as component of SUSE Linux Enterprise Desktop 15 SP7
kernel-source as component of SUSE Linux Enterprise Desktop 15 SP7
cluster-md-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
dlm-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
gfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
kernel-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
kernel-source as component of SUSE Linux Enterprise High Availability Extension 15 SP7
ocfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
kernel-default as component of SUSE Linux Enterprise High Availability Extension 16.0
kernel-source as component of SUSE Linux Enterprise High Availability Extension 16.0
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP2
reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP3
reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP4
and 217 more
Fixed: Linux: < 5.1, 6.1.175 ≤ 6.1.*, 6.6.141 ≤ 6.6.*, 6.12.91 ≤ 6.12.*, 6.18.33 ≤ 6.18.*, 7.0.10 ≤ 7.0.*, 7.1 ≤ *
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.

Evidence and provenance

Published 24 Jun 2026 · Last source change 24 Jun 2026, 16:30 UTC · CWE-476 · NULL Pointer Dereference

CVE recordCVE.org · 5.2

CVSS sourceNIST NVD

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-2026-38979

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.

2026-06-24CVE published

2026-06-24Fixed release or patch reference recorded

ENISA EUVD · EUVD-2026-38979↗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.

bpf: test_run: Fix the null pointer dereference issue in bpf_lwt_xmit_push_encap

Published severity in operational context

Evidence used

Compensating controls

Verification

Remediation availability differs by product scope

Release-specific package status

Authoritative vendor CSAF and VEX advisories

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

ENISA European Vulnerability Database

EUVD-2026-38979

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication