Full vulnerability report · 2026

CVE-2026-64001High confidence

ALSA: pcm: oss: Fix setup list UAF on proc write error

Linux · Linux

7.8HighCVSS 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 219 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 severityHighOperational priority:Medium, lowered one band.downgradedsince 19 Jul 2026

Evidence used

No CISA KEV confirmation is currently recorded.
Exploitation requires an existing local or physical foothold with privileges.
EPSS is 0.13% 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 219 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Red Hat Product Security: 198 affected or under-investigation product states without a fixed product state in the same current advisory
Debian Security Tracker, Canonical Ubuntu Security: 21 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 21 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 6 Oct 2026
Debian bookwormbookworm · source	`linux`	Affected, no fix publishedDebian currently tracks this release as open.	`Not published in this feed`	Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`7.0.12-1`	Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`7.0.12-1`	Debian Security Tracker ↗Source updated 6 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.

2 current

CVE-2026-64001 · CSAF 2.0 · revision 13 · interimSUSE Product Security TeamCVE-2026-64001

240 known affected

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

kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-default-base as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-default-man as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP1
reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP1
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

Summary: In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix setup list UAF on proc write error snd_pcm_oss_proc_write() links a newly allocated setup entry into the OSS setup list before duplicating the task name. If the task-name allocation fails, the error path frees the already linked entry and leaves setup_list pointing at freed memory. A later OSS device open can then walk the stale list entry in snd_pcm_oss_look_for_setup() and dereference freed memory. Allocate the task name and initialize the setup entry before publishing the entry on setup_list. Also fetch the initial proc read iterator only after taking setup_mutex, so all setup_list traversal follows the same list lifetime rules.
Remediation: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

CVE-2026-64001 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitykernel: ALSA: pcm: oss: Fix setup list UAF on proc write error

198 known affected

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

kernel as a component of Red Hat Enterprise Linux 10
kernel-64k as a component of Red Hat Enterprise Linux 10
kernel-64k-core as a component of Red Hat Enterprise Linux 10
kernel-64k-debug as a component of Red Hat Enterprise Linux 10
kernel-64k-debug-core as a component of Red Hat Enterprise Linux 10
kernel-64k-debug-devel as a component of Red Hat Enterprise Linux 10
kernel-64k-debug-devel-matched as a component of Red Hat Enterprise Linux 10
kernel-64k-debug-modules as a component of Red Hat Enterprise Linux 10
kernel-64k-debug-modules-core as a component of Red Hat Enterprise Linux 10
kernel-64k-debug-modules-extra as a component of Red Hat Enterprise Linux 10
kernel-64k-devel as a component of Red Hat Enterprise Linux 10
kernel-64k-devel-matched as a component of Red Hat Enterprise Linux 10

Summary: A flaw was found in the Linux kernel's ALSA (Advanced Linux Sound Architecture) PCM (Pulse Code Modulation) OSS (Open Sound System) component. A local user could exploit a Use-After-Free (UAF) vulnerability in the `snd_pcm_oss_proc_write()` function. This occurs when a setup entry is prematurely linked into the OSS setup list, and a subsequent task-name allocation failure leads to the entry being freed while still referenced. A later attempt to open an OSS device could then access this freed memory, potentially leading to memory corruption or system instability.
Remediation: Affected

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: ALSA: pcm: oss: Fix setup list UAF on proc write error snd_pcm_oss_proc_write() links a newly allocated setup entry into the OSS setup list before duplicating the task name. If the task-name allocation fails, the error path frees the already linked entry and leaves setup_list pointing at freed memory. A later OSS device open can then walk the stale list entry in snd_pcm_oss_look_for_setup() and dereference freed memory. Allocate the task name and initialize the setup entry before publishing the entry on setup_list. Also fetch the initial proc read iterator only after taking setup_mutex, so all setup_list traversal follows the same list lifetime rules.

What

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

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 → Use After Free → cause the confidentiality, integrity or availability impact described by the vendor
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-416 ↗
CWE-416: Use After Free. The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory belongs to the code that operates on the new pointer.
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:H/I:H/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.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: The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.

CWE-416

Official authority intelligence

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

ENISA EUVD · EUVD-2026-45574Official EUVD mapping

0 linked advisory records.

Official EUVD record ↗

BSI · German · WID-SEC-2026-2403Linux Kernel: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen, möglicherweise Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen oder vertrauliche Informationen offenzulegen.

Official advisory ↗

Cyber Security Agency of Singapore · English · CSA-SB-20260722Security Bulletin 22 Jul 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 22 Jul 2026, published on 22 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-2026-63992 Référence CVE CVE-2026-63993 https://www.cve.org/CVERecord?id=CVE-2026-63993 Référence CVE CVE-2026-63994 https://www.cve.org/CVERecord?id=CVE-2026-63994 Référence CVE CVE-2026-63995 https://www.cve.org/CVERecord?id=CVE-2026-63995 Référence CVE CVE-2026-63996 https://www.cve.org/CVERecord?id=CVE-2026-63996 Référence CVE CVE-2026-63997 https://www.cve.org/CVERecord?id=CVE-2026-63997 Référence CVE CVE-2026-63998 https://www.cve.org/CVERecord?id=CVE-2026-63998 Référence CVE CVE-2026-63999 https://www.cve.org/CVERecord?id=CVE-2026-63999 Référence CVE CVE-2026-64000 https://www.cve.org/CVERecord?id=CVE-2026-64000 Référence CVE CVE-2026-64001 https://www.cve.org/CVERecord?id=CVE-2026-64001 Référence CVE CVE-2026-64002 https://www.cve.org/CVERecord?id=CVE-2026-64002 Référence CVE CVE-2026-64003 https://www.cve.org/CVERecord?id=CVE-2026-64003 Référence CVE CVE-2026-64004 https://www.cve.org/CVERecord?id=CVE-2026-64004 Référence CVE CVE-2026-64005 https://www.cve.org/CVERecord?id=CVE-2026-64005 Référence CVE CVE-2026-64006 https://www.cve.org/CVERecord?id=CVE-2026-64006 Référence CVE CVE-2026-64007 https://www.cve.org/CVERecord?id=CVE-2026-64007 Référence CVE CVE-2026-64008 https://www.cve.org/CVERecord?id=CVE-2026-64008 Référence CVE CVE-2026-64009 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-2026-63990 Référence CVE CVE-2026-63992 https://www.cve.org/CVERecord?id=CVE-2026-63992 Référence CVE CVE-2026-63993 https://www.cve.org/CVERecord?id=CVE-2026-63993 Référence CVE CVE-2026-63995 https://www.cve.org/CVERecord?id=CVE-2026-63995 Référence CVE CVE-2026-63996 https://www.cve.org/CVERecord?id=CVE-2026-63996 Référence CVE CVE-2026-63997 https://www.cve.org/CVERecord?id=CVE-2026-63997 Référence CVE CVE-2026-63998 https://www.cve.org/CVERecord?id=CVE-2026-63998 Référence CVE CVE-2026-63999 https://www.cve.org/CVERecord?id=CVE-2026-63999 Référence CVE CVE-2026-64000 https://www.cve.org/CVERecord?id=CVE-2026-64000 Référence CVE CVE-2026-64001 https://www.cve.org/CVERecord?id=CVE-2026-64001 Référence CVE CVE-2026-64002 https://www.cve.org/CVERecord?id=CVE-2026-64002 Référence CVE CVE-2026-64003 https://www.cve.org/CVERecord?id=CVE-2026-64003 Référence CVE CVE-2026-64004 https://www.cve.org/CVERecord?id=CVE-2026-64004 Référence CVE CVE-2026-64005 https://www.cve.org/CVERecord?id=CVE-2026-64005 Référence CVE CVE-2026-64006 https://www.cve.org/CVERecord?id=CVE-2026-64006 Référence CVE CVE-2026-64007 https://www.cve.org/CVERecord?id=CVE-2026-64007 Référence CVE CVE-2026-64010 https://www.cve.org/CVERecord?id=CVE-2026-64010 Référence CVE CVE-2026-64011 https://www.cve.org/CVERecord?id=

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1231Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-63890 Référence CVE CVE-2026-63891 https://www.cve.org/CVERecord?id=CVE-2026-63891 Référence CVE CVE-2026-63892 https://www.cve.org/CVERecord?id=CVE-2026-63892 Référence CVE CVE-2026-63898 https://www.cve.org/CVERecord?id=CVE-2026-63898 Référence CVE CVE-2026-63920 https://www.cve.org/CVERecord?id=CVE-2026-63920 Référence CVE CVE-2026-63928 https://www.cve.org/CVERecord?id=CVE-2026-63928 Référence CVE CVE-2026-63962 https://www.cve.org/CVERecord?id=CVE-2026-63962 Référence CVE CVE-2026-63990 https://www.cve.org/CVERecord?id=CVE-2026-63990 Référence CVE CVE-2026-63992 https://www.cve.org/CVERecord?id=CVE-2026-63992 Référence CVE CVE-2026-64001 https://www.cve.org/CVERecord?id=CVE-2026-64001 Référence CVE CVE-2026-64002 https://www.cve.org/CVERecord?id=CVE-2026-64002 Référence CVE CVE-2026-64005 https://www.cve.org/CVERecord?id=CVE-2026-64005 Référence CVE CVE-2026-64007 https://www.cve.org/CVERecord?id=CVE-2026-64007 Référence CVE CVE-2026-64010 https://www.cve.org/CVERecord?id=CVE-2026-64010 Référence CVE CVE-2026-64011 https://www.cve.org/CVERecord?id=CVE-2026-64011 Référence CVE CVE-2026-64015 https://www.cve.org/CVERecord?id=CVE-2026-64015 Référence CVE CVE-2026-64047 https://www.cve.org/CVERecord?id=CVE-2026-64047 Référence CVE CVE-2026-64048 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-2026-63985 Référence CVE CVE-2026-63990 https://www.cve.org/CVERecord?id=CVE-2026-63990 Référence CVE CVE-2026-63992 https://www.cve.org/CVERecord?id=CVE-2026-63992 Référence CVE CVE-2026-63995 https://www.cve.org/CVERecord?id=CVE-2026-63995 Référence CVE CVE-2026-63996 https://www.cve.org/CVERecord?id=CVE-2026-63996 Référence CVE CVE-2026-63997 https://www.cve.org/CVERecord?id=CVE-2026-63997 Référence CVE CVE-2026-63998 https://www.cve.org/CVERecord?id=CVE-2026-63998 Référence CVE CVE-2026-63999 https://www.cve.org/CVERecord?id=CVE-2026-63999 Référence CVE CVE-2026-64000 https://www.cve.org/CVERecord?id=CVE-2026-64000 Référence CVE CVE-2026-64001 https://www.cve.org/CVERecord?id=CVE-2026-64001 Référence CVE CVE-2026-64002 https://www.cve.org/CVERecord?id=CVE-2026-64002 Référence CVE CVE-2026-64004 https://www.cve.org/CVERecord?id=CVE-2026-64004 Référence CVE CVE-2026-64005 https://www.cve.org/CVERecord?id=CVE-2026-64005 Référence CVE CVE-2026-64006 https://www.cve.org/CVERecord?id=CVE-2026-64006 Référence CVE CVE-2026-64007 https://www.cve.org/CVERecord?id=CVE-2026-64007 Référence CVE CVE-2026-64010 https://www.cve.org/CVERecord?id=CVE-2026-64010 Référence CVE CVE-2026-64011 https://www.cve.org/CVERecord?id=CVE-2026-64011 Référence CVE CVE-2026-64014 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 ↗

JVN iPedia · Japanese · JVNDB-2026-036479LinuxのLinux Kernelにおける解放済みメモリの使用に関する脆弱性

Linuxカーネルにおいて、以下の脆弱性が修正されました。ALSA: pcm: oss: proc書き込みエラー時のsetupリストのUse-After-Free（UAF）修正についてです。snd_pcm_oss_proc_write()は、新たに割り当てられたsetupエントリをタスク名を複製する前にOSSのsetupリストにリンクします。もしタスク名の割り当てが失敗した場合、エラー処理はすでにリンクされたエントリを解放し、その結果setup_listが解放済みメモリを指す状態になってしまいます。後のOSSデバイスのオープン処理でsnd_pcm_oss_look_for_setup()がこの古いリストエントリを辿り、解放済みのメモリを逆参照してしまう可能性があります。対策としては、task名を割り当ててsetupエントリを初期化してから、setup_listにエントリを公開するように変更しました。また、setup_mutexを取得してから初期のproc読み取りイテレータを取得することで、すべてのsetup_listの走査が同一のリスト寿命ルールに従うようにしています。

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 High Performance Computing 15 SP1
kernel-default-base as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-default-man as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP1
reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP1
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
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP4
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP4
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP4
and 210 more
Fixed: Linux: < 2.6.17, 6.12.93 ≤ 6.12.*, 6.18.35 ≤ 6.18.*, 7.0.12 ≤ 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 19 Jul 2026 · Last source change 19 Jul 2026, 14:56 UTC · CWE-416 · Use After Free

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-2026-45574

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 ↗

19 Jul 2026, 14:56 UTC
Vendor guidanceAuthoritative vendor guidance changed: added patch: git.kernel.org/4cc54bdd54b337e77115be5b55577d1c58608eae; added patch: git.kernel.org/8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce; 2 further additions.
Before
remediation: git.kernel.org/8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce
After
patch: git.kernel.org/4cc54bdd54b337e77115be5b55577d1c58608eae · patch: git.kernel.org/8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce · patch: git.kernel.org/be387230dc22d870afd0e5d35912b07c2bc323bd · 2 more references
git.kernel.org ↗
19 Jul 2026, 14:56 UTC
Affected versionsThe structured affected or fixed version information changed.
Before
060d77b9c04acd7aef60790398a53f731db8c8fe < 8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce; 060d77b9c04acd7aef60790398a53f731db8c8fe < e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c; 060d77b9c04acd7aef60790398a53f731db8c8fe < be387230dc22d870afd0e5d35912b07c2bc323bd; 060d77b9c04acd7aef60790398a53f731db8c8fe < 4cc54bdd54b337e77115be5b55577d1c58608eae; 2.6.17 · Fixed: < 2.6.17; 6.12.93 ≤ 6.12.*; 6.18.35 ≤ 6.18.*; 7.0.12 ≤ 7.0.*; 7.1 ≤ *
After
Linux: 060d77b9c04acd7aef60790398a53f731db8c8fe < 8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce, 060d77b9c04acd7aef60790398a53f731db8c8fe < e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c, 060d77b9c04acd7aef60790398a53f731db8c8fe < be387230dc22d870afd0e5d35912b07c2bc323bd, 060d77b9c04acd7aef60790398a53f731db8c8fe < 4cc54bdd54b337e77115be5b55577d1c58608eae, 2.6.17 · Fixed: Linux: < 2.6.17, 6.12.93 ≤ 6.12.*, 6.18.35 ≤ 6.18.*, 7.0.12 ≤ 7.0.*, 7.1 ≤ *
CNA ↗
19 Jul 2026, 14:56 UTC
SeveritySeverity changed from Unknown to High.
Before
Unknown
After
High
NIST NVD ↗
19 Jul 2026, 14:56 UTC
CVSS scoreCVSS score changed from not recorded to 7.8 (CVSS 3.1 · NIST NVD · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
Before
not recorded
After
7.8 (CVSS 3.1 · NIST NVD · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
NIST NVD ↗

2026-07-19CVE published

2026-07-19Fixed release or patch reference recorded

ENISA EUVD · EUVD-2026-45574↗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.

ALSA: pcm: oss: Fix setup list UAF on proc write error

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-2026-45574

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication