Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: wifi: wil6210: debugfs: fix uninitialized variable use in `wil_write_file_wmi()` Commit 7a4836560a61 changes simple_write_to_buffer() with memdup_user() but it forgets to change the value to be returned that came from simple_write_to_buffer() call. It results in the following warning: warning: variable 'rc' is uninitialized when used here [-Wuninitialized] return rc; ^~ Remove rc variable and just return the passed in length if the memdup_user() succeeds.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ff974e4083341383d3dd4079e52ed30f57f376f0 before b13c84e877d7a3095bacb14665db304b2c00e95f; affected ff974e4083341383d3dd4079e52ed30f57f376f0 before c9fde3a44da566d8929070ab6bda4f0dfa9955d0; affected ff974e4083341383d3dd4079e52ed30f57f376f0 before 52b11a48cf073e0aab923ae809a765d756cecf13; affected ff974e4083341383d3dd4079e52ed30f57f376f0 before 6c5fee83bdbeffe8d607d1ab125122a75f40bd1a; affected ff974e4083341383d3dd4079e52ed30f57f376f0 before 689e5caf63e99e15d2f485ec297c1bf9243e0e28; affected ff974e4083341383d3dd4079e52ed30f57f376f0 before d4742c886043b69d2d058bfde3998ef333b66595; affected ff974e4083341383d3dd4079e52ed30f57f376f0 before 409bd72e544fdf4809ea0dac337bb5a1f11a25a9; affected ff974e4083341383d3dd4079e52ed30f57f376f0 before d578e0af3a003736f6c440188b156483d451b329 |
| Linux / Linux | affected 3.17; unaffected 0 before 3.17; unaffected 4.14.291 through 4.14.*; unaffected 4.19.256 through 4.19.*; unaffected 5.4.211 through 5.4.*; unaffected 5.10.137 through 5.10.*; unaffected 5.15.61 through 5.15.*; unaffected 5.18.18 through 5.18.*; unaffected 5.19.2 through 5.19.*; unaffected 6.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/b13c84e877d7a3095bacb14665db304b2c00e95f
- https://git.kernel.org/stable/c/c9fde3a44da566d8929070ab6bda4f0dfa9955d0
- https://git.kernel.org/stable/c/52b11a48cf073e0aab923ae809a765d756cecf13
- https://git.kernel.org/stable/c/6c5fee83bdbeffe8d607d1ab125122a75f40bd1a
- https://git.kernel.org/stable/c/689e5caf63e99e15d2f485ec297c1bf9243e0e28
- https://git.kernel.org/stable/c/d4742c886043b69d2d058bfde3998ef333b66595
- https://git.kernel.org/stable/c/409bd72e544fdf4809ea0dac337bb5a1f11a25a9
- https://git.kernel.org/stable/c/d578e0af3a003736f6c440188b156483d451b329