high8.8
CVE-2026-23226
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 sync…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 6.3 before 6.18.11 from 6.19 before 6.19.1 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/36ef605c0395b94b826a8c8d6f2697071173de6e
- https://git.kernel.org/stable/c/43ad494ac6e940a8eabf25d5bd77bb3bb53b1153
- https://git.kernel.org/stable/c/4c2ca31608521895dd742a43beca4b4d29762345
- https://git.kernel.org/stable/c/4f3a06cc57976cafa8c6f716646be6c79a99e485
- https://git.kernel.org/stable/c/c00f3938f7ac52770907768e440cf253af9cbb63
- https://git.kernel.org/stable/c/e4a8a96a93d08570e0405cfd989a8a07e5b6ff33