5.5

CVE-2026-43109

x86: shadow stacks: proper error handling for mmap lock

In the Linux kernel, the following vulnerability has been resolved:

x86: shadow stacks: proper error handling for mmap lock

김영민 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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.6 < 6.18.24
Linux ≫ Linux Kernel Version >= 6.19 < 6.19.14
Linux ≫ Linux Kernel Version 7.0 Update rc1
Linux ≫ Linux Kernel Version 7.0 Update rc2
Linux ≫ Linux Kernel Version 7.0 Update rc3
Linux ≫ Linux Kernel Version 7.0 Update rc4
Linux ≫ Linux Kernel Version 7.0 Update rc5
Linux ≫ Linux Kernel Version 7.0 Update rc6
Linux ≫ Linux Kernel Version 7.0 Update rc7
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.11% 0.017
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/c64cebcc5c4f223dbcbe7dcdf74908fc092a0aa4
Patch
https://git.kernel.org/stable/c/262b6d38a81d51b135db81e1f30c13d30e38feee
Patch
https://git.kernel.org/stable/c/52f657e34d7b21b47434d9d8b26fa7f6778b63a0
Patch
https://git.kernel.org/stable/c/1a30468eff661937d978495644d2e5ebfeef5ce6
https://git.kernel.org/stable/c/c79cf42321600e931933e11f94aba8b245d4cd66