5.5

CVE-2022-50287

drm/i915/bios: fix a memory leak in generate_lfp_data_ptrs

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

drm/i915/bios: fix a memory leak in generate_lfp_data_ptrs

When (size != 0 || ptrs->lvds_ entries != 3), the program tries to
free() the ptrs. However, the ptrs is not created by calling kzmalloc(),
but is obtained by pointer offset operation.
This may lead to memory leaks or undefined behavior.

Fix this by replacing the arguments of kfree() with ptrs_block.

(cherry picked from commit 7674cd0b7d28b952151c3df26bbfa7e07eb2b4ec)
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.19 < 6.0.16
Linux ≫ Linux Kernel Version >= 6.1 < 6.1.2
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.14% 0.039
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

https://git.kernel.org/stable/c/4758d04014cfe6cdb6e9b4738d1d6728487bbb3a
Patch
https://git.kernel.org/stable/c/7c852e8f93f04e57c1e3883caa72542469c6c4c4
Patch
https://git.kernel.org/stable/c/1382901f75a5a7dc8eac05059fd0c7816def4eae
Patch