CVE-2026-64370
In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path In do_cpu_nanosleep(), posix_cpu_timer_create() takes a pid reference via get_pid() and stores it in…
Does this matter?
Lower severity and a low EPSS score (0.13%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path In do_cpu_nanosleep(), posix_cpu_timer_create() takes a pid reference via get_pid() and stores it in timer.it.cpu.pid. If the subsequent posix_cpu_timer_set() call fails, the function returns immediately without calling posix_cpu_timer_del() to release the pid reference, causing a leak. Fix it by calling posix_cpu_timer_del() before the unlock-and-return on the error path, consistent with the other exit paths in the same function.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.13% probability · 3th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/7776f9226e99eb49d97492b0b445027cfcb189daPatch
- https://git.kernel.org/stable/c/87bd2ad568e15b90d5f7d4bcd70342d05dad649cPatch
- https://git.kernel.org/stable/c/8a270b1258797f61b61da44f8bfd41a581b5c85bPatch
- https://git.kernel.org/stable/c/8f06363446c5d043c9a7c008b250040e9de98cf9Patch
- https://git.kernel.org/stable/c/afed3cdc1cca133f804fcf57ff228974f424b23aPatch
- https://git.kernel.org/stable/c/d605d00085adc3fddf67de01dc2a44aebf1a3fb5Patch
- https://git.kernel.org/stable/c/e5ffc638faf5dc7d9dc85c9a95e10bf97442e0c0Patch
- https://git.kernel.org/stable/c/eb4cec29a78334d09bcfb41c0660cdd62ba05843Patch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.