Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.3, < 6.18.11 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/36ef605c0395b94b826a8c8d6f2697071173de6ePatch
- https://git.kernel.org/stable/c/4c2ca31608521895dd742a43beca4b4d29762345
- https://git.kernel.org/stable/c/4f3a06cc57976cafa8c6f716646be6c79a99e485Patch
- https://git.kernel.org/stable/c/e4a8a96a93d08570e0405cfd989a8a07e5b6ff33Patch
FAQ
What is CVE-2026-23226?
CVE-2026-23226 is a vulnerability with a CVSS score of 8.8 (HIGH). 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...
How severe is CVE-2026-23226?
CVE-2026-23226 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-23226?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.