CVE-2024-50202

Source
https://nvd.nist.gov/vuln/detail/CVE-2024-50202
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50202.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-50202
Downstream
Related
Published
2024-11-08T06:15:16Z
Modified
2025-10-01T21:16:03Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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

nilfs2: propagate directory read errors from nilfsfindentry()

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 nilfsfindentry(), which searches for directory entries, ignores errors when loading a directory page/folio via nilfsgetfolio() fails.

If the filesystem images is corrupted, and the isize 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, nilfscheck_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 nilfsfindentry().

The current interface of nilfsfindentry() and its callers is outdated and cannot propagate error codes such as -EIO and -ENOMEM returned via nilfsfindentry(), so fix it together.

References

Affected packages