CVE-2024-49915

Summary

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)

Affected Software

VendorProductVersion RangeStatus
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 0d94d9cbd9fec7344d230c4f7b781826f7799c60affected
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < ec1be3c527b4a5fc85bcc1b0be7cec08bf60c796affected
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < f0454b3cb0584a6bf275aeb49be61a760fd546a2affected
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 7d1854c86d02cea8f8a0c0ca05f4ab14292baf3daffected
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < c395fd47d1565bd67671f45cca281b3acc2c31efaffected
LinuxLinux4.15affected
LinuxLinux0 < 4.15unaffected
LinuxLinux6.1.120 <= 6.1.*unaffected
LinuxLinux6.6.64 <= 6.6.*unaffected
LinuxLinux6.10.14 <= 6.10.*unaffected
LinuxLinux6.11.3 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References