Description
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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
e5225c820c057537dc780244760e2e24c7d27366 to < 2a29413ace64627e178fd422dd8a5d95219a2c0baffectede5225c820c057537dc780244760e2e24c7d27366 to < 653993f46861f2971e95e9a0e36a34b49dec542caffectede5225c820c057537dc780244760e2e24c7d27366 to < 117f7a2975baa4b7d702d3f4830d5a4ebd0c6d50affectede5225c820c057537dc780244760e2e24c7d27366 to < ac18d781466252cd35a3e311e0a4b264260fd927affectede5225c820c057537dc780244760e2e24c7d27366 to < 4dbaa738c583a0e947803c69e8996e88cf98d971affectede5225c820c057537dc780244760e2e24c7d27366 to < 438bda062b2c40ddd7df23b932e29ffe0a448cacaffectede5225c820c057537dc780244760e2e24c7d27366 to < 9edc7d25f7e49c33a1ce7a5ffadea2222065516caffectede5225c820c057537dc780244760e2e24c7d27366 to < 221cd51efe4565501a3dbf04cc011b537dcce7fbaffected
Linux Linux
Default version status: affected
4.19affected0 to < 4.19unaffected5.4.291 to ≤ 5.4.*unaffected5.10.235 to ≤ 5.10.*unaffected5.15.179 to ≤ 5.15.*unaffected6.1.130 to ≤ 6.1.*unaffected6.6.80 to ≤ 6.6.*unaffected6.12.14 to ≤ 6.12.*unaffected6.13.3 to ≤ 6.13.*unaffected6.14 to ≤ *unaffected
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 ↗
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html ↗
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html ↗