CVE-2026-23093
Published: February 10, 2026Last modified: February 20, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: smbd: fix dma_unmap_sg() nents The dma_unmap_sg() functions should be called with the same nents as the dma_map_sg(), not the value the map function returned.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.163-r0) |
| 25 LTS | linux-lts | Fixed (6.12.73-r0) | |
| Stream | linux-lts | Fixed (6.12.71-r0) |
References
- https://git.kernel.org/stable/c/4d1e9a4a450aae47277763562122cc80ed703ab2
- https://git.kernel.org/stable/c/6ececffd3e9fe93a87738625dc0671165d27bf96
- https://git.kernel.org/stable/c/70ba85e439221a5d6dda34a3004db6640f0525e6
- https://git.kernel.org/stable/c/98e3e2b561bc88f4dd218d1c05890672874692f6
- https://git.kernel.org/stable/c/d1943bc9dc9508f5933788a76f8a35d10e43a646
- https://git.kernel.org/stable/c/f569f5b8bfd5133defdf9c7f8a72c63aa11f54ec