Expired Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-modules-extra-matched (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-KERNELMODULESEXTRAMATCHED-19387030
- published28 Aug 2026
- disclosed26 Aug 2026
Introduced: 26 Aug 2026
CVE-2026-74753 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-modules-extra-matched package and not the kernel-modules-extra-matched package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
perf: Reject exited events as group leaders
perf_event_remove_on_exec() sets remove-on-exec events to the EXIT state and detaches their group relationships. The event's file descriptor can remain open, however, and perf_event_open() currently accepts that event as a group leader because its early validation rejects only REVOKED and DEAD events.
A new sibling can consequently be linked to the detached leader. When the leader is closed, perf_group_detach() observes that its PERF_ATTACH_GROUP bit is already clear and skips the new sibling. The sibling then retains a group_leader pointer to the freed event.
Reject group leaders in the EXIT state. Perform the check while holding the shared context mutex so that an exec in the target task cannot detach the leader between validation and group attachment.
[peterz: make the earlier test fully consistent]
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2524434
- https://access.redhat.com/security/cve/CVE-2026-74753
- https://access.redhat.com/errata/RHSA-2026:72624
- https://git.kernel.org/stable/c/7a03413f31c196ab3894f988cdce0bb47b4fec42
- https://git.kernel.org/stable/c/7ce010275c531475f9d6e7efb11b9e522c74ed2e
- https://git.kernel.org/stable/c/fa091f46c3833fb22384f10eade2b4e1e1d0b278
- https://git.kernel.org/stable/c/ce12e1170c0c78dffb9b28af6d287492ae7dd99d
- https://git.kernel.org/stable/c/e593031ff19a9484e8a00bc47edd447187721846