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CVE-2026-64560

In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Prevent UAF caused by non-leader exec() race Wongi and Jungwoo decoded and reported a non-leader exec() related race which can result in an UAF: sys_timer_delete() exec() posix_cpu_timer_del() // Observes old leader p = pid_task(pid, pid_type); de_thread() switch_leader(); release_task(old_leader) __exit_signal(old_leader) sighand = lock(old_leader, sighand);
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2d76c7cfe984ff493575e0903e84b02efa88803a7507346f8a5da46d2e947021
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/exit.c","kernel/signal.c","kernel/time/posix-cpu-timers.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.7"},{"lessThan":"5.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.262","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.213","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:909b5685b1a22c309157efd10e09097c053cdca189a172a696a22a6693012650 · sha256:6e11aa0419ee9403… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/exit.c","kernel/signal.c","kernel/time/posix-cpu-timers.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"67aa823e3e8c229c6d374df79c804f6721cb83b6","status":"affected","version":"55e8c8eb2c7b6bf30e99423ccfe7ca032f498f59","versionType":"git"},{"lessThan":"d8bcb28abad857f1415da7656f19b2ada90af04f","status":"affected","version":"55e8c8eb2c7b6bf30e99423ccfe7ca032f498f59","versionType":"git"},{"lessThan":"cc35ddbc497311e0b6b9a6a6a4f4d1217d6ab1aa","status":"af…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:909b5685b1a22c309157efd10e09097c053cdca189a172a696a22a6693012650 · sha256:6e11aa0419ee9403… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/exit.c","kernel/signal.c","kernel/time/posix-cpu-timers.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.7"},{"lessThan":"5.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.262","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.213","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:909b5685b1a22c309157efd10e09097c053cdca189a172a696a22a6693012650 · sha256:6e11aa0419ee9403… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/exit.c","kernel/signal.c","kernel/time/posix-cpu-timers.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"67aa823e3e8c229c6d374df79c804f6721cb83b6","status":"affected","version":"55e8c8eb2c7b6bf30e99423ccfe7ca032f498f59","versionType":"git"},{"lessThan":"d8bcb28abad857f1415da7656f19b2ada90af04f","status":"affected","version":"55e8c8eb2c7b6bf30e99423ccfe7ca032f498f59","versionType":"git"},{"lessThan":"cc35ddbc497311e0b6b9a6a6a4f4d1217d6ab1aa","status":"af…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:909b5685b1a22c309157efd10e09097c053cdca189a172a696a22a6693012650 · sha256:6e11aa0419ee9403… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:909b5685b1a22c309157efd10e09097c053cdca189a172a696a22a6693012650 · sha256:6e11aa0419ee9403… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/12a891c773aeb5823d63dbd0cb2ab931d6c21c9b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:909b5685b1a22c309157efd10e09097c053cdca189a172a696a22a6693012650 · sha256:6e11aa0419ee9403… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/67aa823e3e8c229c6d374df79c804f6721cb83b6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:909b5685b1a22c309157efd10e09097c053cdca189a172a696a22a6693012650 · sha256:6e11aa0419ee9403… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/6a7ecc25abe6f0fecc6e62a05096987200edbd02"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:909b5685b1a22c309157efd10e09097c053cdca189a172a696a22a6693012650 · sha256:6e11aa0419ee9403… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/920f893f735e92ba3a1cd9256899a186b161928d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:909b5685b1a22c309157efd10e09097c053cdca189a172a696a22a6693012650 · sha256:6e11aa0419ee9403… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/ad1cafa1bdaa71da85d71cac053838bbe97852b6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:909b5685b1a22c309157efd10e09097c053cdca189a172a696a22a6693012650 · sha256:6e11aa0419ee9403… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/cc35ddbc497311e0b6b9a6a6a4f4d1217d6ab1aa"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:909b5685b1a22c309157efd10e09097c053cdca189a172a696a22a6693012650 · sha256:6e11aa0419ee9403… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/d8bcb28abad857f1415da7656f19b2ada90af04f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:909b5685b1a22c309157efd10e09097c053cdca189a172a696a22a6693012650 · sha256:6e11aa0419ee9403… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/e74443f5db0037c556ef436fa64b88bf4ea08f83"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:909b5685b1a22c309157efd10e09097c053cdca189a172a696a22a6693012650 · sha256:6e11aa0419ee9403… · /containers/cna/references/4

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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