Riskcovery

CVE-2026-90324

ublk: check import_ubuf() return value

State
Published
Severity
7.8 High
Published
Sep 17, 2026
Updated
Oct 21, 2026
Reserved
Sep 11, 2026

Read the record on cve.org

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().

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 981f95a571e3ca20a496c0b77dbf6b06039c6648 to before 7f97c762b5f6e0005c5c7d040ded73bf7fb3587eAffected
  • 981f95a571e3ca20a496c0b77dbf6b06039c6648 to before 27ff6e8703f7a7160c728501da2f8ef8e7bb6b2fAffected
  • 981f95a571e3ca20a496c0b77dbf6b06039c6648 to before 0121c84adb6a4cd6f7560b5895bd88f9899bbc1fAffected
  • 981f95a571e3ca20a496c0b77dbf6b06039c6648 to before 5ac6019cb78e98c9608fda72726b36ddf8474dd7Affected
  • 981f95a571e3ca20a496c0b77dbf6b06039c6648 to before 3831568792af75b6523fa93bb91560e29189cf55Affected
LinuxLinux
  • 6.5Affected
  • before 6.5Not affected
  • 6.6.160 through 6.6.*Not affected
  • 6.12.114 through 6.12.*Not affected
  • 6.18.52 through 6.18.*Not affected
  • 7.2.6 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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