{"id":"CVE-2022-49914","summary":"btrfs: fix inode list leak during backref walking at resolve_indirect_refs()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix inode list leak during backref walking at resolve_indirect_refs()\n\nDuring backref walking, at resolve_indirect_refs(), if we get an error\nwe jump to the 'out' label and call ulist_free() on the 'parents' ulist,\nwhich frees all the elements in the ulist - however that does not free\nany inode lists that may be attached to elements, through the 'aux' field\nof a ulist node, so we end up leaking lists if we have any attached to\nthe unodes.\n\nFix this by calling free_leaf_list() instead of ulist_free() when we exit\nfrom resolve_indirect_refs(). The static function free_leaf_list() is\nmoved up for this to be possible and it's slightly simplified by removing\nunnecessary code.","modified":"2026-04-02T08:28:02.710132Z","published":"2025-05-01T14:10:55.581Z","related":["SUSE-SU-2025:01983-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49914.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2c0329406bb28109c07c6e23e5e3e0fa618a95d7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/396515db923ad5cbeb179d6b88927870b4cbebb7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5614dc3a47e3310fbc77ea3b67eaadd1c6417bf1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6ba3479f9e96b9ad460c7e77abc26dd16e5dec4f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a52e24c7fcc3c5ce3588a14e3663c00868d36623"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b1dc9019bb5f89abae85645de1a2dd4830c1f8e9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cded2c89774b99b67c98147ae103ea878c92a206"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49914.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49914"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"3301958b7c1dae8f0f5ded63aa881e0b71e78464"},{"fixed":"b1dc9019bb5f89abae85645de1a2dd4830c1f8e9"},{"fixed":"cded2c89774b99b67c98147ae103ea878c92a206"},{"fixed":"2c0329406bb28109c07c6e23e5e3e0fa618a95d7"},{"fixed":"a52e24c7fcc3c5ce3588a14e3663c00868d36623"},{"fixed":"6ba3479f9e96b9ad460c7e77abc26dd16e5dec4f"},{"fixed":"396515db923ad5cbeb179d6b88927870b4cbebb7"},{"fixed":"5614dc3a47e3310fbc77ea3b67eaadd1c6417bf1"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49914.json"}}],"schema_version":"1.7.5"}