CVE-2026-23226
HIGHLinux Kernel 6.3-6.18.10 - Use-After-Free in ksmbd_chann_list xarray
Title source: llmDescription
In the Linux kernel, the following vulnerability has been resolved: ksmbd: add chann_lock to protect ksmbd_chann_list xarray ksmbd_chann_list xarray lacks synchronization, allowing use-after-free in multi-channel sessions (between lookup_chann_list() and ksmbd_chann_del). Adds rw_semaphore chann_lock to struct ksmbd_session and protects all xa_load/xa_store/xa_erase accesses.
References (4)
Core 4
Core References
Scores
CVSS v3
8.8
EPSS
0.0002
EPSS Percentile
6.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-416
Status
published
Products (20)
linux/Kernel
6.19.0 - 6.19.1linux
linux/Kernel
6.3.0 - 6.18.11linux
Linux/Linux
< 6.3
Linux/Linux
1d9c4172110e645b383ff13eee759728d74f1a5d - 36ef605c0395b94b826a8c8d6f2697071173de6e
Linux/Linux
1d9c4172110e645b383ff13eee759728d74f1a5d - 4c2ca31608521895dd742a43beca4b4d29762345
Linux/Linux
1d9c4172110e645b383ff13eee759728d74f1a5d - 4f3a06cc57976cafa8c6f716646be6c79a99e485
Linux/Linux
1d9c4172110e645b383ff13eee759728d74f1a5d - e4a8a96a93d08570e0405cfd989a8a07e5b6ff33
Linux/Linux
5.15.145 - 5.16
Linux/Linux
6.1.29 - 6.2
Linux/Linux
6.12.77 - 6.12.*
... and 10 more
Published
Feb 18, 2026
Tracked Since
Feb 18, 2026