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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-90324

ublk: check import_ubuf() return value

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().

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 981f95a571e3ca20a496c0b77dbf6b06039c6648 to < 7f97c762b5f6e0005c5c7d040ded73bf7fb3587eaffected
  • 981f95a571e3ca20a496c0b77dbf6b06039c6648 to < 27ff6e8703f7a7160c728501da2f8ef8e7bb6b2faffected
  • 981f95a571e3ca20a496c0b77dbf6b06039c6648 to < 0121c84adb6a4cd6f7560b5895bd88f9899bbc1faffected
  • 981f95a571e3ca20a496c0b77dbf6b06039c6648 to < 5ac6019cb78e98c9608fda72726b36ddf8474dd7affected
  • 981f95a571e3ca20a496c0b77dbf6b06039c6648 to < 3831568792af75b6523fa93bb91560e29189cf55affected

Linux Linux

Default version status: affected

  • 6.5affected
  • 0 to < 6.5unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.114 to ≤ 6.12.*unaffected
  • 6.18.52 to ≤ 6.18.*unaffected
  • 7.2.6 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References