8.2

CVE-2026-64380

smb: client: harden POSIX SID length parsing

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

smb: client: harden POSIX SID length parsing

posix_info_sid_size() reads sid[1] to obtain the subauthority count,
but its existing boundary check still accepts buffers with only one
remaining byte. Require two bytes before reading sid[1] so all client
paths that reuse the helper reject truncated POSIX SIDs safely.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.7 < 5.10.261
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.212
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.178
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.145
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.96
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.39
Linux ≫ Linux Kernel Version >= 6.19 < 7.1.4
Linux ≫ Linux Kernel Version 7.2 Update rc1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.44% 0.362
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 8.2 3.9 4.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/171605aed68380c2fa75dff9b3a1ed427c50065b
Patch
https://git.kernel.org/stable/c/4213c1208978483021d7d125c131de3985d38f61
Patch
https://git.kernel.org/stable/c/96e889bc1e759c83f25093e8c2f3da31b4973f30
Patch
https://git.kernel.org/stable/c/0de5b8e76847f5de26f364a82c6602c4881c30da
Patch
https://git.kernel.org/stable/c/427eb7eb46425fec845a43e861f3d6e2899cae59
Patch
https://git.kernel.org/stable/c/86c5d470f5d42e61123b2f4b4f0b91f4eee5b980
Patch
https://git.kernel.org/stable/c/46a84715a015cb48e1b9c219dc88c03d8a541ea4
Patch
https://git.kernel.org/stable/c/7ad2bcf2441430bb2e918fb3ef9a90d775a6e422
Patch