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CVE-2022-50496 dm cache: Fix UAF in destroy()

🗓️ 04 Oct 2025 15:43:47Reported by GoogleType 
osv
 osv🔗 osv.dev👁 1 Views

CVE-2022-50496 fixes use-after-free in dm cache destroy when resume and destroy run concurrently, cancelling the timer.

Related
Refs
ReporterTitlePublishedViews
Family
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2-2023-1932 (ALAS-2023-1932)
8 Feb 202300:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2023-026 (ALASKERNEL-5.10-2023-026)
8 Feb 202300:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2023-013 (ALASKERNEL-5.15-2023-013)
8 Feb 202300:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2023-042 (ALASKERNEL-5.4-2023-042)
23 Feb 202300:00
–nessus
Tenable Nessus		EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-1212)
2 Feb 202600:00
–nessus
Tenable Nessus		EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-1224)
2 Feb 202600:00
–nessus
Tenable Nessus		EulerOS Virtualization 2.13.0 : kernel (EulerOS-SA-2026-1629)
18 Mar 202600:00
–nessus
Tenable Nessus		EulerOS Virtualization 2.13.1 : kernel (EulerOS-SA-2026-1637)
18 Mar 202600:00
–nessus
Tenable Nessus		Photon OS 4.0: Linux PHSA-2025-4.0-0801
21 May 202500:00
–nessus
Tenable Nessus		SUSE SLES15 Security Update : kernel (SUSE-SU-2025:4111-1)
18 Nov 202500:00
–nessus
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02 Apr 2026 08:28Current
6.5Medium risk
Vulners AI Score6.5
CVSS 3.17.8
EPSS0.00016
use after freedm cachedestroy concurrencyresume destroy racetimer cancellation
1