Description (CNA)
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)
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before 23cb6139543580dc36743586ca86fbb3f7ab2c9d; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before 205e3b96cc9aa9211fd2c849a16245cf236b2d36; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before 5443c83eb8fd2f88c71ced38848fbf744d6206a2; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before 56c326577971adc3a230f29dfd3aa3abdd505f5d; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before cba7fec864172dadd953daefdd26e01742b71a6a |
| Linux / Linux | affected 4.15; unaffected 0 before 4.15; unaffected 6.1.120 through 6.1.*; unaffected 6.6.64 through 6.6.*; unaffected 6.10.14 through 6.10.*; unaffected 6.11.3 through 6.11.*; unaffected 6.12 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/23cb6139543580dc36743586ca86fbb3f7ab2c9d
- https://git.kernel.org/stable/c/205e3b96cc9aa9211fd2c849a16245cf236b2d36
- https://git.kernel.org/stable/c/5443c83eb8fd2f88c71ced38848fbf744d6206a2
- https://git.kernel.org/stable/c/56c326577971adc3a230f29dfd3aa3abdd505f5d
- https://git.kernel.org/stable/c/cba7fec864172dadd953daefdd26e01742b71a6a
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.