Description
In the Linux kernel, the following vulnerability has been resolved:
ublk: check import_ubuf() return value
import_ubuf() can fail if the address range (provided by the userspace ublk server) is outside the allowed user address space. Return that 0 bytes were copied if import_ubuf() fails rather than passing an uninitialized struct iov_iter to ublk_copy_user_pages().
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HAffected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 981f95a571e3ca20a496c0b77dbf6b06039c6648, < 7f97c762b5f6e0005c5c7d040ded73bf7fb3587e; >= 981f95a571e3ca20a496c0b77dbf6b06039c6648, < 27ff6e8703f7a7160c728501da2f8ef8e7bb6b2f; >= 981f95a571e3ca20a496c0b77dbf6b06039c6648, < 0121c84adb6a4cd6f7560b5895bd88f9899bbc1f; >= 981f95a571e3ca20a496c0b77dbf6b06039c6648, < 5ac6019cb78e98c9608fda72726b36ddf8474dd7; >= 981f95a571e3ca20a496c0b77dbf6b06039c6648, < 3831568792af75b6523fa93bb91560e29189cf55 |
| Linux | Linux | 6.5 |
References
- https://git.kernel.org/stable/c/0121c84adb6a4cd6f7560b5895bd88f9899bbc1f
- https://git.kernel.org/stable/c/27ff6e8703f7a7160c728501da2f8ef8e7bb6b2f
- https://git.kernel.org/stable/c/3831568792af75b6523fa93bb91560e29189cf55
- https://git.kernel.org/stable/c/5ac6019cb78e98c9608fda72726b36ddf8474dd7
- https://git.kernel.org/stable/c/7f97c762b5f6e0005c5c7d040ded73bf7fb3587e
Timeline
- Published
- Sep 17, 2026
- Last modified
- Oct 21, 2026
- NVD status
- Received