CVE-2022-50095: posix-cpu-timers: Cleanup CPU timers before freeing them during exec

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• linux linux kernel5.7 and later · before 5.10.137
• linux linux kernel5.11 and later · before 5.15.61
• linux linux kernel5.16 and later · before 5.18.18
• linux linux kernel5.19 and later · before 5.19.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

• Linux Linux

  • 5.7affected
  • 55e8c8eb2c7b6bf30e99423ccfe7ca032f498f59 and later · before 541840859ace9c2ccebc32fa9e376c7bd3def490affected · git
  • 55e8c8eb2c7b6bf30e99423ccfe7ca032f498f59 and later · before 9e255ed238fc67058df87b0388ad6d4b2ef3a2bdaffected · git
  • 55e8c8eb2c7b6bf30e99423ccfe7ca032f498f59 and later · before e8cb6e8fd9890780f1bfcf5592889e1b879e779caffected · git
  • 55e8c8eb2c7b6bf30e99423ccfe7ca032f498f59 and later · before b2fc1723eb65abb83e00d5f011de670296af0b28affected · git
  • 55e8c8eb2c7b6bf30e99423ccfe7ca032f498f59 and later · before e362359ace6f87c201531872486ff295df306d13affected · git
  • before 5.7not affected · semver
  • 5.10.137 and later · up to and including 5.10.*not affected · semver
  • 5.15.61 and later · up to and including 5.15.*not affected · semver
  • 5.18.18 and later · up to and including 5.18.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
  90Now
• CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
  89Now
• CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
  85Now

Published before and after this one in the same product

• ← EarlierCVE-2022-50093Jun 18, 2025 · iommu/vt-d: avoid invalid memory access via node_online(NUMA_NO_NODE)
  28Monitor
• ← EarlierCVE-2022-50094Jun 18, 2025 · spmi: trace: fix stack-out-of-bound access in SPMI tracing functions
  28Monitor
• Later →CVE-2022-50096Jun 18, 2025 · x86/kprobes: Update kcb status flag after singlestepping
  22Monitor

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1free(dev->buf);2/* ... another thread is still running ... */3process(dev->buf);

1lock(&dev->lock);2free(dev->buf);3dev->buf = NULL;4unlock(&dev->lock);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.