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CVE-2022-49408 PUBLISHED CVSS 5.5 MEDIUM

Reported by Linux · Published February 26, 2025

In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in parse_apply_sb_mount_options() If processing the on-disk mount options fails after any memory was allocated in the ext4_fs_context, e.g. s_qf_names, then this memory is leaked. Fix this by calling ext4_fc_free() 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

Risk Scores

CVSS v3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
LinuxLinux7edfd85b1ffd36593011dec96ab395912a340418, 7edfd85b1ffd36593011dec96ab395912a340418, 7edfd85b1ffd36593011dec96ab395912a340418
LinuxLinux5.17, 0, 5.17.14
LinuxLinux7edfd85b1ffd36593011dec96ab395912a340418, 7edfd85b1ffd36593011dec96ab395912a340418, 7edfd85b1ffd36593011dec96ab395912a340418
linuxlinux_kernel5.17, 5.17, 5.17

Timeline

References

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