CVE-2022-50437

drm/msm/hdmi: fix memory corruption with too many bridges

State: Published
Severity: 7.8 High
Published: Oct 1, 2025
Updated: Aug 5, 2026
Reserved: Sep 17, 2025

Description

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

drm/msm/hdmi: fix memory corruption with too many bridges

Add the missing sanity check on the bridge counter to avoid corrupting data beyond the fixed-sized bridge array in case there are ever more than eight bridges.

Patchwork: https://patchwork.freedesktop.org/patch/502670/

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before a9c1a6991a9b5aa6d0f2cbc9b8c3bf6c4d094dfaAffected a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before e8f916b84e4b028ecad6c6472eaad543cc7df806Affected a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before 3c43f3ec731c233eb84b66199ee76dbf3ec6ecaeAffected a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before ed7f1ff87a4afea1bc220d2ff00a7ce8e61f0b53Affected a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before 08c7375fa27a8ceee028868e03ffb3a0db919d44Affected a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before b48949ab451eaf1e2c04c272c8a9a96a2b56546fAffected a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before 9efb45b45ff6254bfd1f1997a06725cb3fc998a5Affected a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before 4c1294da6aed1f16d47a417dcfe6602833c3c95cAffected
LinuxLinux	3.12Affected before 3.12Not affected 4.9.332 through 4.9.Not affected 4.14.298 through 4.14.Not affected 4.19.264 through 4.19.Not affected 5.4.223 through 5.4.Not affected 5.10.153 through 5.10.Not affected 5.15.77 through 5.15.Not affected 6.0.7 through 6.0.*Not affected 6.1 and laterNot affected

Product

Versions

LinuxLinux

a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before a9c1a6991a9b5aa6d0f2cbc9b8c3bf6c4d094dfaAffected
a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before e8f916b84e4b028ecad6c6472eaad543cc7df806Affected
a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before 3c43f3ec731c233eb84b66199ee76dbf3ec6ecaeAffected
a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before ed7f1ff87a4afea1bc220d2ff00a7ce8e61f0b53Affected
a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before 08c7375fa27a8ceee028868e03ffb3a0db919d44Affected
a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before b48949ab451eaf1e2c04c272c8a9a96a2b56546fAffected
a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before 9efb45b45ff6254bfd1f1997a06725cb3fc998a5Affected
a3376e3ec81c5dd0622cbc187db76d2824d31c1c to before 4c1294da6aed1f16d47a417dcfe6602833c3c95cAffected

LinuxLinux

3.12Affected
before 3.12Not affected
4.9.332 through 4.9.*Not affected
4.14.298 through 4.14.*Not affected
4.19.264 through 4.19.*Not affected
5.4.223 through 5.4.*Not affected
5.10.153 through 5.10.*Not affected
5.15.77 through 5.15.*Not affected
6.0.7 through 6.0.*Not affected
6.1 and laterNot affected

References

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