{"cve":"CVE-2022-49408","nvd":{"published":"2025-02-26T07:01:17.323","modified":"2026-06-17T05:17:57.843","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix memory leak in parse_apply_sb_mount_options()\n\nIf processing the on-disk mount options fails after any memory was\nallocated in the ext4_fs_context, e.g. s_qf_names, then this memory is\nleaked.  Fix this by calling ext4_fc_free() instead of kfree() directly.\n\nReproducer:\n\n    mkfs.ext4 -F /dev/vdc\n    tune2fs /dev/vdc -E mount_opts=usrjquota=file\n    echo clear > /sys/kernel/debug/kmemleak\n    mount /dev/vdc /vdc\n    echo scan > /sys/kernel/debug/kmemleak\n    sleep 5\n    echo scan > /sys/kernel/debug/kmemleak\n    cat /sys/kernel/debug/kmemleak","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-401"],"references":["https://git.kernel.org/stable/c/9ea3e6168948189cec31d0678d2b55b395f88491","https://git.kernel.org/stable/c/c069db76ed7b681c69159f44be96d2137e9ca989","https://git.kernel.org/stable/c/f92ded66e9d0aa20b883a2a5183973abc8f41815"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2022-49408","score":0.00258,"percentile":0.17526,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}