ALSA: pcm: oss: Fix setup list UAF on proc write error
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.
CVE-2026-64001
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-64001
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "060d77b9c04acd7aef60790398a53f731db8c8fe",
"lessThan": "d9df965284abde27ba6bfbdfc8407697cf6802f1",
"versionType": "git"
},
{
"status": "affected",
"version": "060d77b9c04acd7aef60790398a53f731db8c8fe",
"lessThan": "8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce",
"versionType": "git"
},
{
"status": "affected",
"version": "060d77b9c04acd7aef60790398a53f731db8c8fe",
"lessThan": "e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c",
"versionType": "git"
},
{
"status": "affected",
"version": "060d77b9c04acd7aef60790398a53f731db8c8fe",
"lessThan": "be387230dc22d870afd0e5d35912b07c2bc323bd",
"versionType": "git"
},
{
"status": "affected",
"version": "060d77b9c04acd7aef60790398a53f731db8c8fe",
"lessThan": "4cc54bdd54b337e77115be5b55577d1c58608eae",
"versionType": "git"
}
],
"programFiles": [
"sound/core/oss/pcm_oss.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.17"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.17",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.93",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.35",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.12",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"sound/core/oss/pcm_oss.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-64001
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46412 · Revision 1
- Added to Heist Feed
- Publisher date