Input: byd - synchronize timer deletion before freeing private data
In the Linux kernel, the following vulnerability has been resolved: Input: byd - synchronize timer deletion before freeing private data byd_disconnect() uses timer_delete() before freeing the driver's private data. This does not wait for a running byd_clear_touch() callback, which dereferences the private data and its psmouse pointer. A callback racing with disconnect can therefore access the private data after it has been freed. The timer can also still be re-armed by byd_process_byte() while the disconnect is in progress. Use timer_shutdown_sync() before freeing the private data: it waits for a running callback and turns any later re-arm attempt into a no-op.
CVE-2026-80572
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-2026-80572
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": "2d5f5611dd0de52e9a52b56391a7049a52184e72",
"lessThan": "84b205297fa15f97510342221d8c9a0119711478",
"versionType": "git"
},
{
"status": "affected",
"version": "2d5f5611dd0de52e9a52b56391a7049a52184e72",
"lessThan": "28d984a66b9e14be74986167b6ad40b5e0daf19a",
"versionType": "git"
},
{
"status": "affected",
"version": "2d5f5611dd0de52e9a52b56391a7049a52184e72",
"lessThan": "ee944a706a18322b4a2599eebe8040a2994e928f",
"versionType": "git"
},
{
"status": "affected",
"version": "2d5f5611dd0de52e9a52b56391a7049a52184e72",
"lessThan": "8dbfd8e32a13e116790780ed0be82b5a05eb9916",
"versionType": "git"
},
{
"status": "affected",
"version": "2d5f5611dd0de52e9a52b56391a7049a52184e72",
"lessThan": "2e509ef60ee41a2da0deb062c262bb530143fb37",
"versionType": "git"
},
{
"status": "affected",
"version": "2d5f5611dd0de52e9a52b56391a7049a52184e72",
"lessThan": "c83e79c0842ed29860648bcce5022ef0ba5001c6",
"versionType": "git"
}
],
"programFiles": [
"drivers/input/mouse/byd.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.6",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.185",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.154",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.106",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.46",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.10",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/input/mouse/byd.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-80572
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #34327 · Revision 1
- Added to Heist Feed
- Publisher date