Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: media: uvcvideo: Remove dangling pointers When an async control is written, we copy a pointer to the file handle that started the operation. That pointer will be used when the device is done. Which could be anytime in the future. If the user closes that file descriptor, its structure will be freed, and there will be one dangling pointer per pending async control, that the driver will try to use. Clean all the dangling pointers during release(). To avoid adding a performance penalty in the most common case (no async operation), a counter has been introduced with some logic to make sure that it is properly handled.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e5225c820c057537dc780244760e2e24c7d27366 before 2a29413ace64627e178fd422dd8a5d95219a2c0b; affected e5225c820c057537dc780244760e2e24c7d27366 before 653993f46861f2971e95e9a0e36a34b49dec542c; affected e5225c820c057537dc780244760e2e24c7d27366 before 117f7a2975baa4b7d702d3f4830d5a4ebd0c6d50; affected e5225c820c057537dc780244760e2e24c7d27366 before ac18d781466252cd35a3e311e0a4b264260fd927; affected e5225c820c057537dc780244760e2e24c7d27366 before 4dbaa738c583a0e947803c69e8996e88cf98d971; affected e5225c820c057537dc780244760e2e24c7d27366 before 438bda062b2c40ddd7df23b932e29ffe0a448cac; affected e5225c820c057537dc780244760e2e24c7d27366 before 9edc7d25f7e49c33a1ce7a5ffadea2222065516c; affected e5225c820c057537dc780244760e2e24c7d27366 before 221cd51efe4565501a3dbf04cc011b537dcce7fb |
| Linux / Linux | affected 4.19; unaffected 0 before 4.19; unaffected 5.4.291 through 5.4.*; unaffected 5.10.235 through 5.10.*; unaffected 5.15.179 through 5.15.*; unaffected 6.1.130 through 6.1.*; unaffected 6.6.80 through 6.6.*; unaffected 6.12.14 through 6.12.*; unaffected 6.13.3 through 6.13.*; unaffected 6.14 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/2a29413ace64627e178fd422dd8a5d95219a2c0b
- https://git.kernel.org/stable/c/653993f46861f2971e95e9a0e36a34b49dec542c
- https://git.kernel.org/stable/c/117f7a2975baa4b7d702d3f4830d5a4ebd0c6d50
- https://git.kernel.org/stable/c/ac18d781466252cd35a3e311e0a4b264260fd927
- https://git.kernel.org/stable/c/4dbaa738c583a0e947803c69e8996e88cf98d971
- https://git.kernel.org/stable/c/438bda062b2c40ddd7df23b932e29ffe0a448cac
- https://git.kernel.org/stable/c/9edc7d25f7e49c33a1ce7a5ffadea2222065516c
- https://git.kernel.org/stable/c/221cd51efe4565501a3dbf04cc011b537dcce7fb
ADP enrichment
No English description supplied.
No English description supplied.
No English description supplied.
No references supplied.