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CVE-2026-64370

UnknownEPSS 0.18%

Last modified

CVE-2026-64370 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
0.18%

7.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < afed3cdc1cca133f804fcf57ff228974f424b23a; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8a270b1258797f61b61da44f8bfd41a581b5c85b; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < d605d00085adc3fddf67de01dc2a44aebf1a3fb5; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < e5ffc638faf5dc7d9dc85c9a95e10bf97442e0c0; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < eb4cec29a78334d09bcfb41c0660cdd62ba05843; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 7776f9226e99eb49d97492b0b445027cfcb189da; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8f06363446c5d043c9a7c008b250040e9de98cf9; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 87bd2ad568e15b90d5f7d4bcd70342d05dad649c
LinuxLinux2.6.12

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is 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 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.
How severe is CVE-2026-64370?
Severity scoring for CVE-2026-64370 is pending analysis. The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2026-64370?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST