CVE-2026-90324
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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().
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 981f95a571e3ca20a496c0b77dbf6b06039c6648 < 0121c84adb6a4cd6f7560b5895bd88f9899bbc1f | affected |
| Linux | Linux | 981f95a571e3ca20a496c0b77dbf6b06039c6648 < 5ac6019cb78e98c9608fda72726b36ddf8474dd7 | affected |
| Linux | Linux | 981f95a571e3ca20a496c0b77dbf6b06039c6648 < 3831568792af75b6523fa93bb91560e29189cf55 | affected |
| Linux | Linux | 6.5 | affected |
| Linux | Linux | 0 < 6.5 | unaffected |
| Linux | Linux | 6.18.52 <= 6.18.* | unaffected |
| Linux | Linux | 7.2.6 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/0121c84adb6a4cd6f7560b5895bd88f9899bbc1f
- https://git.kernel.org/stable/c/5ac6019cb78e98c9608fda72726b36ddf8474dd7
- https://git.kernel.org/stable/c/3831568792af75b6523fa93bb91560e29189cf55
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