Riskcovery

CVE-2024-49865

drm/xe/vm: move xa_alloc to prevent UAF

State
Published
Severity
7.8 High
Published
Oct 21, 2024
Updated
Aug 5, 2026
Reserved
Oct 21, 2024

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/xe/vm: move xa_alloc to prevent UAF

Evil user can guess the next id of the vm before the ioctl completes and then call vm destroy ioctl to trigger UAF since create ioctl is still referencing the same vm. Move the xa_alloc all the way to the end to prevent this.

v2: - Rebase

(cherry picked from commit dcfd3971327f3ee92765154baebbaece833d3ca9)

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
  • dd08ebf6c3525a7ea2186e636df064ea47281987 to before 09cf8901fc0225898311b375cfcc67bae37ed5daAffected
  • dd08ebf6c3525a7ea2186e636df064ea47281987 to before 74231870cf4976f69e83aa24f48edb16619f652fAffected
LinuxLinux
  • 6.8Affected
  • before 6.8Not affected
  • 6.11.3 through 6.11.*Not affected
  • 6.12 and laterNot affected

References

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