7.8

CVE-2022-50496

dm cache: Fix UAF in destroy()

In the Linux kernel, the following vulnerability has been resolved:

dm cache: Fix UAF in destroy()

Dm_cache also has the same UAF problem when dm_resume()
and dm_destroy() are concurrent.

Therefore, cancelling timer again in destroy().
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.9 < 4.9.337
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.303
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.270
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.229
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.163
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.87
Linux ≫ Linux Kernel Version >= 5.16 < 6.0.18
Linux ≫ Linux Kernel Version >= 6.1 < 6.1.4
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.053
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/034cbc8d3b47a56acd89453c29632a9c117de09d
Patch
https://git.kernel.org/stable/c/993406104d2b28fe470126a062ad37a1e21e792e
Patch
https://git.kernel.org/stable/c/4d20032dd90664de09f2902a7ea49ae2f7771746
Patch
https://git.kernel.org/stable/c/2f097dfac7579fd84ff98eb1d3acd41d53a485f3
Patch
https://git.kernel.org/stable/c/2b17026685a270b2beaf1cdd9857fcedd3505c7e
Patch
https://git.kernel.org/stable/c/d2a0b298ebf83ab6236f66788a3541e91ce75a70
Patch
https://git.kernel.org/stable/c/6ac4f36910764cb510bafc4c3768544f86ca48ca
Patch
https://git.kernel.org/stable/c/6a3e412c2ab131c54945327a7676b006f000a209
Patch
https://git.kernel.org/stable/c/6a459d8edbdbe7b24db42a5a9f21e6aa9e00c2aa
Patch