7.8

CVE-2023-52931

drm/i915: Avoid potential vm use-after-free

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

drm/i915: Avoid potential vm use-after-free

Adding the vm to the vm_xa table makes it visible to userspace, which
could try to race with us to close the vm.  So we need to take our extra
reference before putting it in the table.

(cherry picked from commit 99343c46d4e2b34c285d3d5f68ff04274c2f9fb4)
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.11
Linux ≫ Linux Kernel Version 6.2 Update rc1
Linux ≫ Linux Kernel Version 6.2 Update rc2
Linux ≫ Linux Kernel Version 6.2 Update rc3
Linux ≫ Linux Kernel Version 6.2 Update rc4
Linux ≫ Linux Kernel Version 6.2 Update rc5
Linux ≫ Linux Kernel Version 6.2 Update rc6
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.136
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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/764accc2c1b8fd1507be2e7f436c94cdce887a00
Patch
https://git.kernel.org/stable/c/41d419382ec7e257e54b7b6ff0d3623aafb1316d
Patch