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Review reviewHigh

CVE-2023-53090

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix an illegal memory access In the kfd_wait_on_events() function, the kfd_event_waiter structure is allocated by alloc_event_waiters(), but the event field of the waiter structure is not initialized; When copy_from_user() fails in the kfd_wait_on_events() function, it will enter exception handling to release the previously allocated memory of the waiter structure; Due to the event field of the waiters structure being accessed in the free_waiters() function, this results in illegal memory access and system crash...

CVSS
7.1
EPSS
0.20%
9.97% percentile
CISA KEV
Not listed
Published
2025.05.03
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.20%
Technical severityCVSS 7.1

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix an illegal memory access In the kfd_wait_on_events() function, the kfd_event_waiter structure is allocated by alloc_event_waiters(), but the event field of the waiter structure is not initialized; When copy_from_user() fails in the kfd_wait_on_events() function, it will enter exception handling to release the previously allocated memory of the waiter structure; Due to the event field of the waiters structure being accessed in the free_waiters() function, this results in illegal memory access and system crash...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 4a488a7ad71401169cecee75dc94bcce642e2c53 < 5a3fb3b745af0ce46ec2e0c8e507bae45b937334, >= 4a488a7ad71401169cecee75dc94bcce642e2c53 < bbf5eada4334a96e3a204b2307ff5b14dc380b0b, >= 4a488a7ad71401169cecee75dc94bcce642e2c53 < 6936525142a015e854d0a23e9ad9ea0a28b3843d, >= 4a488a7ad71401169cecee75dc94bcce642e2c53 < 2fece63b55c5d74cd6f5de51159e2cde37e10555, >= 4a488a7ad71401169cecee75dc94bcce642e2c53 < d9923e7214a870b312bf61f6a89c7554d0966985, >= 4a488a7ad71401169cecee75dc94bcce642e2c53 < 61f306f8df0d5559659c5578cf6d95236bcdcb25, >= 4a488a7ad71401169cecee75dc94bcce642e2c53 < 4fc8fff378b2f2039f2a666d9f8c570f4e58352c, >= 3.19, >= 3.19 < 4.19.279, >= 4.20 < 5.4.238, >= 5.5 < 5.10.176, >= 5.11 < 5.15.104, >= 5.16 < 6.1.21, >= 6.2 < 6.2.8
Fixed versions
4.19.279, 5.4.238, 5.10.176, 5.15.104, 6.1.21, 6.2.8

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE
CWE-125