perf: Fix race between perf_event_exit_task() and perf_pending_task()
In the Linux kernel, the following vulnerability has been resolved: perf: Fix race between perf_event_exit_task() and perf_pending_task() A race condition exists between perf_event_exit_task() and perf_pending_task() during begin_new_exec(). During begin_new_exec(), perf_event_exit_task() may be called, and the PF_EXITING flag is not set on task. So perf_sigtrap() continues to execute and triggers WARN_ON_ONCE(event->ctx->task != current). Since both task exit and exec paths can call perf_event_exit_task() which sets ctx->task to TASK_TOMBSTONE, fix this by explicitly checking if event->ctx->task equals TASK_TOMBSTONE and dropping the redundant PF_EXITING check.
CVE-2026-98790
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-2026-98790
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": "97ba62b278674293762c3d91f724f1bb922f04e0",
"lessThan": "655acfa713bce9ae9c81a654459890c2f58cb4e8",
"versionType": "git"
},
{
"status": "affected",
"version": "97ba62b278674293762c3d91f724f1bb922f04e0",
"lessThan": "672b8a9ce8f51b991481dfde26fba5cc4340a91a",
"versionType": "git"
},
{
"status": "affected",
"version": "97ba62b278674293762c3d91f724f1bb922f04e0",
"lessThan": "524063fea29f8a841e49927ea7a8085194ad3ec2",
"versionType": "git"
},
{
"status": "affected",
"version": "97ba62b278674293762c3d91f724f1bb922f04e0",
"lessThan": "81e61e3f8befa1bae3ec8e779d8ada5e5e362c21",
"versionType": "git"
},
{
"status": "affected",
"version": "97ba62b278674293762c3d91f724f1bb922f04e0",
"lessThan": "ffb684f2aa141eeb0caa6308422e7e05d1ded7c4",
"versionType": "git"
}
],
"programFiles": [
"kernel/events/core.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.13"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.13",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.113",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.56",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.10",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"kernel/events/core.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98790
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48979 · Revision 1
- Added to Heist Feed
- Publisher date