{"id":"CVE-2021-47351","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nubifs: Fix races between xattr_{set|get} and listxattr operations\n\nUBIFS may occur some problems with concurrent xattr_{set|get} and\nlistxattr operations, such as assertion failure, memory corruption,\nstale xattr value[1].\n\nFix it by importing a new rw-lock in @ubifs_inode to serilize write\noperations on xattr, concurrent read operations are still effective,\njust like ext4.\n\n[1] https://lore.kernel.org/linux-mtd/20200630130438.141649-1-houtao1@huawei.com","modified":"2026-03-15T22:43:11.545683Z","published":"2024-05-21T15:15:21.553Z","references":[{"type":"FIX","url":"https://git.kernel.org/stable/c/c0756f75c22149d20fcb7d8409827cee905eb386"},{"type":"FIX","url":"https://git.kernel.org/stable/c/f4e3634a3b642225a530c292fdb1e8a4007507f5"},{"type":"FIX","url":"https://git.kernel.org/stable/c/38dde03eb239605f428f3f1e4baa73d4933a4cc6"},{"type":"FIX","url":"https://git.kernel.org/stable/c/7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08"},{"type":"FIX","url":"https://git.kernel.org/stable/c/9558612cb829f2c022b788f55d6b8437d5234a82"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47351.json","unresolved_ranges":[{"events":[{"introduced":"2.6.27"},{"fixed":"5.4.133"}]},{"events":[{"introduced":"5.5"},{"fixed":"5.10.51"}]},{"events":[{"introduced":"5.11"},{"fixed":"5.12.18"}]},{"events":[{"introduced":"5.13"},{"fixed":"5.13.3"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}