CVE-2024-49907

drm/amd/display: Check null pointers before using dc->clk_mgr

MEDIUM

5.5

CVSS Score

Published: October 21, 2024 at 06:01 PM UTC

Updated: June 17, 2026 at 08:00 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check null pointers before using dc->clk_mgr [WHY & HOW] dc->clk_mgr is null checked previously in the same function, indicating it might be null. Passing "dc" to "dc->hwss.apply_idle_power_optimizations", which dereferences null "dc->clk_mgr". (The function pointer resolves to "dcn35_apply_idle_power_optimizations".) This fixes 1 FORWARD_NULL issue reported by Coverity.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v < 5.10.2274.15 ≤ v < 5.10.2274.15 ≤ v < 5.15.1684.15 ≤ v < 6.1.1134.15 ≤ v < 6.10.144.15 ≤ v < 6.11.34.15 ≤ v < 6.124.15 ≤ v < 6.6.555.11 ≤ v < 5.15.1685.16 ≤ v < 6.1.1136.11 ≤ v < 6.11.36.2 ≤ v < 6.6.556.7 ≤ v < 6.10.144.154562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c

Vendor states this is fixed in 3f7e533c10db3d0158709a99e2129ff63add6bcd (fixed)

Vendor states this is fixed in 5ba3fbf75b243b2863a8be9e7c393e003d3b88f3 (fixed)

Vendor states this is fixed in 8d54001f8dccd56146973f23f3ab2ba037a21251 (fixed)

Vendor states this is fixed in 95d9e0803e51d5a24276b7643b244c7477daf463 (fixed)

Vendor states this is fixed in 9641bc4adf8446034e490ed543ae7e9833cfbdf5 (fixed)

Vendor states this is fixed in a2773e0a4b79e7a6463abdffaf8cc4f24428ba18 (fixed)

Vendor states this is fixed in a545a9403e04c6e17fdc04a26a61d9feebbba106 (fixed)

Vendor states this is fixed in 4.15 (unaffected)

Vendor states this is fixed in 5.10.227 (unaffected)

Vendor states this is fixed in 5.15.168 (unaffected)

Vendor states this is fixed in 6.1.113 (unaffected)

Vendor states this is fixed in 6.10.14 (unaffected)