Riskcovery

CVE-2024-49915

drm/amd/display: Add NULL check for clk_mgr in dcn32_init_hw

State
Published
Severity
Not scored
Published
Oct 21, 2024
Updated
May 11, 2026
Reserved
Oct 21, 2024

Read the record on cve.org

Description

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

drm/amd/display: Add NULL check for clk_mgr in dcn32_init_hw

This commit addresses a potential null pointer dereference issue in the `dcn32_init_hw` function. The issue could occur when `dc->clk_mgr` is null.

The fix adds a check to ensure `dc->clk_mgr` is not null before accessing its functions. This prevents a potential null pointer dereference.

Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn32/dcn32_hwseq.c:961 dcn32_init_hw() error: we previously assumed 'dc->clk_mgr' could be null (see line 782)

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 0d94d9cbd9fec7344d230c4f7b781826f7799c60Affected
  • 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before ec1be3c527b4a5fc85bcc1b0be7cec08bf60c796Affected
  • 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before f0454b3cb0584a6bf275aeb49be61a760fd546a2Affected
  • 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 7d1854c86d02cea8f8a0c0ca05f4ab14292baf3dAffected
  • 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before c395fd47d1565bd67671f45cca281b3acc2c31efAffected
LinuxLinux
  • 4.15Affected
  • before 4.15Not affected
  • 6.1.120 through 6.1.*Not affected
  • 6.6.64 through 6.6.*Not affected
  • 6.10.14 through 6.10.*Not affected
  • 6.11.3 through 6.11.*Not affected
  • 6.12 and laterNot affected

References

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