CVE-2022-49076 Affecting kernel-default-devel package, versions <5.14.21-150400.24.158.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-SLES154-KERNELDEFAULTDEVEL-9528258
  • published27 Mar 2025
  • disclosed26 Mar 2025

Introduced: 26 Mar 2025

NewCVE-2022-49076  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 kernel-default-devel to version 5.14.21-150400.24.158.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-default-devel package and not the kernel-default-devel package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

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

RDMA/hfi1: Fix use-after-free bug for mm struct

Under certain conditions, such as MPI_Abort, the hfi1 cleanup code may represent the last reference held on the task mm. hfi1_mmu_rb_unregister() then drops the last reference and the mm is freed before the final use in hfi1_release_user_pages(). A new task may allocate the mm structure while it is still being used, resulting in problems. One manifestation is corruption of the mmap_sem counter leading to a hang in down_write(). Another is corruption of an mm struct that is in use by another task.

CVSS Base Scores

version 3.1