Improper Handling of Exceptional Conditions Affecting kernel-devel-azure package, versions <6.4.0-150600.8.23.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-SLES156-KERNELDEVELAZURE-8631184
  • published16 Jan 2025
  • disclosed15 Jan 2025

Introduced: 15 Jan 2025

NewCVE-2024-50202  (opens in a new tab)
CWE-755  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 kernel-devel-azure to version 6.4.0-150600.8.23.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-devel-azure package and not the kernel-devel-azure package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

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

nilfs2: propagate directory read errors from nilfs_find_entry()

Syzbot reported that a task hang occurs in vcs_open() during a fuzzing test for nilfs2.

The root cause of this problem is that in nilfs_find_entry(), which searches for directory entries, ignores errors when loading a directory page/folio via nilfs_get_folio() fails.

If the filesystem images is corrupted, and the i_size of the directory inode is large, and the directory page/folio is successfully read but fails the sanity check, for example when it is zero-filled, nilfs_check_folio() may continue to spit out error messages in bursts.

Fix this issue by propagating the error to the callers when loading a page/folio fails in nilfs_find_entry().

The current interface of nilfs_find_entry() and its callers is outdated and cannot propagate error codes such as -EIO and -ENOMEM returned via nilfs_find_entry(), so fix it together.

CVSS Scores

version 3.1