linux — security advisory
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix races among concurrent prealloc proc writes We have no protection against concurrent PCM buffer preallocation changes via proc files, and it may potentially lead to UAF or some weird problem. This patch applies the PCM open_mutex to the proc write operation for avoiding the racy proc writes and the PCM stream open (and further operations).
- Products
- linux
- Affected versions
- Not specified
- Fixed versions
- 5.17.3-1
- CVEs
- CVE-2022-49288
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 15:06 UTC · Revision 1
Source evidence
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix races among concurrent prealloc proc writes We have no protection against concurrent PCM buffer preallocation changes via proc files, and it may potentially lead to UAF or some weird problem. This patch applies the PCM open_mutex to the proc write operation for avoiding the racy proc writes and the PCM stream open (and further operations).
osv:DEBIAN-CVE-2022-49288
linux
Fixed versions: 5.17.3-1
linux
Fixed versions: 5.17.3-1
linux
Fixed versions: 5.17.3-1
Complete source record
{
"id": "cc4712e6b8c968821c7ff9c02f6881710bb618c392bd232a231c907901796385",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2022-49288",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2022-49288",
"summary": "In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix races among concurrent prealloc proc writes We have no protection against concurrent PCM buffer preallocation changes via proc files, and it may potentially lead to UAF or some weird problem. This patch applies the PCM open_mutex to the proc write operation for avoiding the racy proc writes and the PCM stream open (and further operations).",
"evidence": "osv:DEBIAN-CVE-2022-49288",
"products": [
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"name": {
"value": "linux",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
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"evidence": "/affected/0/ranges"
}
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"affected_versions": []
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{
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"severity": "high",
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"aliases": [
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"metrics": [
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"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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"ecosystem": "Debian:12"
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"package": {
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},
"ecosystem_specific": {
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}
}
],
"modified": "2026-10-15T08:02:49.635005883Z",
"provider": "osv",
"upstream": [
"CVE-2022-49288"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2022-49288"
]
},
"related_cves": [
{
"value": "CVE-2022-49288",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 324342,
"published_at": "2025-02-26T07:01:05.657+00:00"
}