7.8

CVE-2024-58034

memory: tegra20-emc: fix an OF node reference bug in tegra_emc_find_node_by_ram_code()

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

memory: tegra20-emc: fix an OF node reference bug in tegra_emc_find_node_by_ram_code()

As of_find_node_by_name() release the reference of the argument device
node, tegra_emc_find_node_by_ram_code() releases some device nodes while
still in use, resulting in possible UAFs. According to the bindings and
the in-tree DTS files, the "emc-tables" node is always device's child
node with the property "nvidia,use-ram-code", and the "lpddr2" node is a
child of the "emc-tables" node. Thus utilize the
for_each_child_of_node() macro and of_get_child_by_name() instead of
of_find_node_by_name() to simplify the code.

This bug was found by an experimental verification tool that I am
developing.

[krzysztof: applied v1, adjust the commit msg to incorporate v2 parts]
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.0 < 5.15.179
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.129
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.76
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.13
Linux ≫ Linux Kernel Version >= 6.13 < 6.13.2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.22% 0.127
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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/3b02273446e23961d910b50cc12528faec649fb2
Patch
https://git.kernel.org/stable/c/755e44538c190c31de9090d8e8821d228fcfd416
Patch
https://git.kernel.org/stable/c/b9784e5cde1f9fb83661a70e580e381ae1264d12
Patch
https://git.kernel.org/stable/c/c144423cb07e4e227a8572d5742ca2b36ada770d
Patch
https://git.kernel.org/stable/c/e9d07e91de140679eeaf275f47ad154467cb9e05
Patch
https://git.kernel.org/stable/c/c3def10c610ae046aaa61d00528e7bd15e4ad8d3
Patch
https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html