CVE-2026-43109
- Source
- https://cve.org/CVERecord?id=CVE-2026-43109
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43109.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-43109
- Downstream
- Related
- Published
- 2026-05-06T07:40:36.532Z
- Modified
- 2026-07-15T01:49:17.028181138Z
- Summary
- x86: shadow stacks: proper error handling for mmap lock
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
x86: shadow stacks: proper error handling for mmap lock
김영민 reports that shstkpopsigframe() doesn't check for errors from mmapreadlockkillable(), which is a silly oversight, and also shows that we haven't marked those functions with "mustcheck", which would have immediately caught it.
So let's fix both issues.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43109.json" }- References
-
- https://git.kernel.org/stable/c/1a30468eff661937d978495644d2e5ebfeef5ce6
- https://git.kernel.org/stable/c/262b6d38a81d51b135db81e1f30c13d30e38feee
- https://git.kernel.org/stable/c/52f657e34d7b21b47434d9d8b26fa7f6778b63a0
- https://git.kernel.org/stable/c/c64cebcc5c4f223dbcbe7dcdf74908fc092a0aa4
- https://git.kernel.org/stable/c/c79cf42321600e931933e11f94aba8b245d4cd66
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43109.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-43109
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced7fad2a432cd35bbf104d2d9d426e74902f22aa95Fixedc79cf42321600e931933e11f94aba8b245d4cd66Fixed1a30468eff661937d978495644d2e5ebfeef5ce6Fixedc64cebcc5c4f223dbcbe7dcdf74908fc092a0aa4Fixed262b6d38a81d51b135db81e1f30c13d30e38feeeFixed52f657e34d7b21b47434d9d8b26fa7f6778b63a0