CVE-2026-43109
x86: shadow stacks: proper error handling for mmap lock
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
2th
In the Linux kernel, the following vulnerability has been resolved: x86: shadow stacks: proper error handling for mmap lock κΉμλ―Ό reports that shstk_pop_sigframe() doesn't check for errors from mmap_read_lock_killable(), which is a silly oversight, and also shows that we haven't marked those functions with "__must_check", which would have immediately caught it. So let's fix both issues.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 6, 2026 |
| Last Updated | May 17, 2026 |
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Affected Versions
Linux / Linux
7fad2a432cd35bbf104d2d9d426e74902f22aa95 < c79cf42321600e931933e11f94aba8b245d4cd66 7fad2a432cd35bbf104d2d9d426e74902f22aa95 < 1a30468eff661937d978495644d2e5ebfeef5ce6 7fad2a432cd35bbf104d2d9d426e74902f22aa95 < c64cebcc5c4f223dbcbe7dcdf74908fc092a0aa4 7fad2a432cd35bbf104d2d9d426e74902f22aa95 < 262b6d38a81d51b135db81e1f30c13d30e38feee 7fad2a432cd35bbf104d2d9d426e74902f22aa95 < 52f657e34d7b21b47434d9d8b26fa7f6778b63a0
Linux / Linux
6.6
References
git.kernel.org: https://git.kernel.org/stable/c/c79cf42321600e931933e11f94aba8b245d4cd66 git.kernel.org: https://git.kernel.org/stable/c/1a30468eff661937d978495644d2e5ebfeef5ce6 git.kernel.org: https://git.kernel.org/stable/c/c64cebcc5c4f223dbcbe7dcdf74908fc092a0aa4 git.kernel.org: https://git.kernel.org/stable/c/262b6d38a81d51b135db81e1f30c13d30e38feee git.kernel.org: https://git.kernel.org/stable/c/52f657e34d7b21b47434d9d8b26fa7f6778b63a0