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CVE-2026-64370

posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before afed3cdc1cca133f804fcf57ff228974f424b23a; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 8a270b1258797f61b61da44f8bfd41a581b5c85b; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before d605d00085adc3fddf67de01dc2a44aebf1a3fb5; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e5ffc638faf5dc7d9dc85c9a95e10bf97442e0c0; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before eb4cec29a78334d09bcfb41c0660cdd62ba05843; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 7776f9226e99eb49d97492b0b445027cfcb189da; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 8f06363446c5d043c9a7c008b250040e9de98cf9; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 87bd2ad568e15b90d5f7d4bcd70342d05dad649c
Linux / Linuxaffected 2.6.12; unaffected 0 before 2.6.12; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.96 through 6.12.*; unaffected 6.18.39 through 6.18.*; unaffected 7.1.4 through 7.1.*; unaffected 7.2 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

siemens-SADP

No English description supplied.