CVE-2022-49408
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49408
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49408.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49408
- Downstream
- Published
- 2025-02-26T07:01:17Z
- Modified
- 2025-10-01T21:15:40Z
- 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:
ext4: fix memory leak in parseapplysbmountoptions()
If processing the on-disk mount options fails after any memory was allocated in the ext4fscontext, e.g. sqfnames, then this memory is leaked. Fix this by calling ext4fcfree() instead of kfree() directly.
Reproducer:
mkfs.ext4 -F /dev/vdc tune2fs /dev/vdc -E mount_opts=usrjquota=file echo clear > /sys/kernel/debug/kmemleak mount /dev/vdc /vdc echo scan > /sys/kernel/debug/kmemleak sleep 5 echo scan > /sys/kernel/debug/kmemleak cat /sys/kernel/debug/kmemleak - References