7.8

CVE-2024-40939

net: wwan: iosm: Fix tainted pointer delete is case of region creation fail

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

net: wwan: iosm: Fix tainted pointer delete is case of region creation fail

In case of region creation fail in ipc_devlink_create_region(), previously
created regions delete process starts from tainted pointer which actually
holds error code value.
Fix this bug by decreasing region index before delete.

Found by Linux Verification Center (linuxtesting.org) with SVACE.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.95
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.35
Linux ≫ Linux Kernel Version >= 6.7 < 6.9.6
Linux ≫ Linux Kernel Version6.10 Updaterc1
Linux ≫ Linux Kernel Version6.10 Updaterc2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.26% 0.172
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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/040d9384870386eb5dc55472ac573ac7756b2050
Patch
https://git.kernel.org/stable/c/37a438704d19bdbe246d51d3749b6b3a8fe65afd
Patch
https://git.kernel.org/stable/c/b0c9a26435413b81799047a7be53255640432547
Patch
https://git.kernel.org/stable/c/fe394d59cdae81389dbf995e87c83c1acd120597
Patch
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html