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Review reviewHigh

CVE-2021-47551

Linux Linux, linux_kernel, linux kernel

In the Linux kernel, the following vulnerability has been resolved: drm/amd/amdkfd: Fix kernel panic when reset failed and been triggered again In SRIOV configuration, the reset may failed to bring asic back to normal but stop cpsch already been called, the start_cpsch will not be called since there is no resume in this case. When reset been triggered again, driver should avoid to do uninitialization again.

CVSS
7.8
EPSS
0.29%
20.9% percentile
CISA KEV
Not listed
Published
2024.05.25
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.29%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: drm/amd/amdkfd: Fix kernel panic when reset failed and been triggered again In SRIOV configuration, the reset may failed to bring asic back to normal but stop cpsch already been called, the start_cpsch will not be called since there is no resume in this case. When reset been triggered again, driver should avoid to do uninitialization again.

Affected product and versions

Product
Linux Linux, linux_kernel, linux kernel
Affected versions
>= 2c99a547bcf9bb8532abd2953479949018449f93 < 74aafe99efb68f15e50be9f7032c2168512f98a8, >= 2c99a547bcf9bb8532abd2953479949018449f93 < 06c6f8f86ec243b89e52f0c3dc7062bcb9de74df, >= 2c99a547bcf9bb8532abd2953479949018449f93 < 2cf49e00d40d5132e3d067b5aa6d84791929ab15, >= 5.5, < 5.10.84, >= 5.11 < 5.15.7, 5.16
Fixed versions
5.10.84, 5.15.7

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux_kernel, 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:H/A:H
CWE
CWE-770