5.5

CVE-2024-46801

libfs: fix get_stashed_dentry()

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

libfs: fix get_stashed_dentry()

get_stashed_dentry() tries to optimistically retrieve a stashed dentry
from a provided location.  It needs to ensure to hold rcu lock before it
dereference the stashed location to prevent UAF issues.  Use
rcu_dereference() instead of READ_ONCE() it's effectively equivalent
with some lockdep bells and whistles and it communicates clearly that
this expects rcu protection.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.9 < 6.10.10
Linux ≫ Linux Kernel Version 6.11 Update rc1
Linux ≫ Linux Kernel Version 6.11 Update rc2
Linux ≫ Linux Kernel Version 6.11 Update rc3
Linux ≫ Linux Kernel Version 6.11 Update rc4
Linux ≫ Linux Kernel Version 6.11 Update rc5
Linux ≫ Linux Kernel Version 6.11 Update rc6
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.2% 0.103
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/03e2a1209a83a380df34a72f7d6d1bc6c74132c7
Patch
https://git.kernel.org/stable/c/4e32c25b58b945f976435bbe51f39b32d714052e
Patch