9.8

CVE-2026-74608

smb: client: Fix use-after-free in cifs_try_adding_channels()

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

smb: client: Fix use-after-free in cifs_try_adding_channels()

cifs_try_adding_channels() takes a temporary reference to an interface
before dropping iface_lock. If cifs_ses_add_channel() fails, it drops
that reference and then increments iface->weight_fulfilled.

A concurrent interface list refresh can remove the list reference while
channel creation is in progress. In that case, the failure-path
kref_put() releases the last reference and frees iface. Updating
weight_fulfilled afterward then accesses freed memory.

Increment weight_fulfilled before dropping the temporary reference,
keeping iface alive for the final access.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version cbc53148cc0946b72d62a3c53870cb22ce4ec284
Version < 64d7584e62ac8cdc750455c5fdc6008fc2de4f06
Status affected
Version cff97d683a083b862a8bb24309e0f4d2d928128a
Version < c292d4686f717c03e5022fc4ae7c782f39a94915
Status affected
Version 6aac002bcfd554aff6d3ebb55e1660d078d70ab0
Version < 47dfac48bce7198ad4f1a388fc8c9491f878ac3b
Status affected
Version 6aac002bcfd554aff6d3ebb55e1660d078d70ab0
Version < 1ffacbadc14530e55b8d86f7b917524f6a0fb891
Status affected
Version 6aac002bcfd554aff6d3ebb55e1660d078d70ab0
Version < 1305eadc6a7d78a8d0a52eee29ddd2d9e8a27805
Status affected
Version 6aac002bcfd554aff6d3ebb55e1660d078d70ab0
Version < 4986410316b1ae0e63c6ce418e4eb196723626e7
Status affected
Version 22a6c5b3425f327e7f4c3606a72277dce82c7d83
Status affected
Version 6.1.78
Version < 6.1.183
Status affected
Version 6.6.17
Version < 6.6.152
Status affected
Version 6.7.5
Version < 6.8
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.8
Status affected
Version 0
Version < 6.8
Status unaffected
Version <= 6.1.*
Version 6.1.183
Status unaffected
Version <= 6.6.*
Version 6.6.152
Status unaffected
Version <= 6.12.*
Version 6.12.104
Status unaffected
Version <= 6.18.*
Version 6.18.45
Status unaffected
Version <= 7.1.*
Version 7.1.9
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.067
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/1305eadc6a7d78a8d0a52eee29ddd2d9e8a27805
https://git.kernel.org/stable/c/1ffacbadc14530e55b8d86f7b917524f6a0fb891
https://git.kernel.org/stable/c/47dfac48bce7198ad4f1a388fc8c9491f878ac3b
https://git.kernel.org/stable/c/4986410316b1ae0e63c6ce418e4eb196723626e7
https://git.kernel.org/stable/c/64d7584e62ac8cdc750455c5fdc6008fc2de4f06
https://git.kernel.org/stable/c/c292d4686f717c03e5022fc4ae7c782f39a94915