ALSA: usb-audio: Clamp frame size in implicit-feedback mode
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Clamp frame size in implicit-feedback mode snd_usb_handle_sync_urb() scales received sync packet sizes by the sender's stride and stores the result directly in out_packet->packet_size[i]. If a connected USB device sends an oversized sync packet, this frame count can exceed ep->maxframesize. The un-clamped frame count then propagates to the playback endpoint queue, potentially driving packet transfers beyond the endpoint's hardware frame limits. Cap the calculated frame count against ep->maxframesize in snd_usb_handle_sync_urb() to prevent oversized packets from entering the playback queue.
CVE-2026-74497
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-2026-74497
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": "28acb12014fb0c3e1edfdab1b1e3e266cf651550",
"lessThan": "2d39fea6d3c19a2f5811d123114d92e3d0115fd1",
"versionType": "git"
},
{
"status": "affected",
"version": "28acb12014fb0c3e1edfdab1b1e3e266cf651550",
"lessThan": "09cf3dbbb4256a43feb91d2f51f274510a9ada47",
"versionType": "git"
},
{
"status": "affected",
"version": "28acb12014fb0c3e1edfdab1b1e3e266cf651550",
"lessThan": "cfa8d3e0e8b812c4db4d5241f62b6bdbab2bd7be",
"versionType": "git"
},
{
"status": "affected",
"version": "28acb12014fb0c3e1edfdab1b1e3e266cf651550",
"lessThan": "56ac3e7c90f6b45969c3fd07a98fad760ffd6901",
"versionType": "git"
},
{
"status": "affected",
"version": "28acb12014fb0c3e1edfdab1b1e3e266cf651550",
"lessThan": "be97fea7451d758881b95af78e900dd0d58a382a",
"versionType": "git"
},
{
"status": "affected",
"version": "28acb12014fb0c3e1edfdab1b1e3e266cf651550",
"lessThan": "2db4535d6af79276a64449201c5be5feffb31c64",
"versionType": "git"
},
{
"status": "affected",
"version": "28acb12014fb0c3e1edfdab1b1e3e266cf651550",
"lessThan": "53f0aa37eb945f3c983f61d12fc35eb33debb8a9",
"versionType": "git"
},
{
"status": "affected",
"version": "28acb12014fb0c3e1edfdab1b1e3e266cf651550",
"lessThan": "8d7a30c50c2e58a6839634ed0acde14466d1dc61",
"versionType": "git"
}
],
"programFiles": [
"sound/usb/endpoint.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.265",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.216",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.183",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.151",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.103",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.44",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.8",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"sound/usb/endpoint.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-74497
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #33181 · Revision 1
- Added to Heist Feed
- Publisher date