media: uvcvideo: Remove dangling pointers
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 5.4.291, 5.10.235, 5.15.179, 6.1.130, 6.6.80, and 2 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
From e5225c820c057537dc780244760e2e24c7d27366 · fixed in 2a29413ace64627e178fd422dd8a5d95219a2c0b; From e5225c820c057537dc780244760e2e24c7d27366 · fixed in 653993f46861f2971e95e9a0e36a34b49dec542c; From e5225c820c057537dc780244760e2e24c7d27366 · fixed in 117f7a2975baa4b7d702d3f4830d5a4ebd0c6d50; From e5225c820c057537dc780244760e2e24c7d27366 · fixed in ac18d781466252cd35a3e311e0a4b264260fd927; From e5225c820c057537dc780244760e2e24c7d27366 · fixed in 4dbaa738c583a0e947803c69e8996e88cf98d971; From e5225c820c057537dc780244760e2e24c7d27366 · fixed in 438bda062b2c40ddd7df23b932e29ffe0a448cac; From e5225c820c057537dc780244760e2e24c7d27366 · fixed in 9edc7d25f7e49c33a1ce7a5ffadea2222065516c; From e5225c820c057537dc780244760e2e24c7d27366 · fixed in 221cd51efe4565501a3dbf04cc011b537dcce7fb
- Linux Linux
4.19
- KernelLinux
From 4.19.0 · fixed in 5.4.291; From 5.5.0 · fixed in 5.10.235; From 5.11.0 · fixed in 5.15.179; From 5.16.0 · fixed in 6.1.130; From 6.2.0 · fixed in 6.6.80; From 6.7.0 · fixed in 6.12.14; From 6.13.0 · fixed in 6.13.3
References 8
git.kernel.org
- stable/c/2a29413ace64627e178fd422dd8a5d95219a2c0b
- stable/c/653993f46861f2971e95e9a0e36a34b49dec542c
- stable/c/117f7a2975baa4b7d702d3f4830d5a4ebd0c6d50
- stable/c/ac18d781466252cd35a3e311e0a4b264260fd927
- stable/c/4dbaa738c583a0e947803c69e8996e88cf98d971
- stable/c/438bda062b2c40ddd7df23b932e29ffe0a448cac
- stable/c/9edc7d25f7e49c33a1ce7a5ffadea2222065516c
- stable/c/221cd51efe4565501a3dbf04cc011b537dcce7fb