Riskcovery

CVE-2024-49917

drm/amd/display: Add NULL check for clk_mgr and clk_mgr->funcs in dcn30_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 and clk_mgr->funcs in dcn30_init_hw

This commit addresses a potential null pointer dereference issue in the `dcn30_init_hw` function. The issue could occur when `dc->clk_mgr` or `dc->clk_mgr->funcs` is null.

The fix adds a check to ensure `dc->clk_mgr` and `dc->clk_mgr->funcs` 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/dcn30/dcn30_hwseq.c:789 dcn30_init_hw() error: we previously assumed 'dc->clk_mgr' could be null (see line 628)

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 23cb6139543580dc36743586ca86fbb3f7ab2c9dAffected
  • 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 205e3b96cc9aa9211fd2c849a16245cf236b2d36Affected
  • 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 5443c83eb8fd2f88c71ced38848fbf744d6206a2Affected
  • 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 56c326577971adc3a230f29dfd3aa3abdd505f5dAffected
  • 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before cba7fec864172dadd953daefdd26e01742b71a6aAffected
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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