{"id":"CVE-2026-89838","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: limit recovery filename logging to stored length\n\nF2FS stores recovery filenames as a length plus a fixed-size i_name\nbuffer","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: limit recovery filename logging to stored length\n\nF2FS stores recovery filenames as a length plus a fixed-size i_name\nbuffer.  The buffer is not NUL-terminated, b…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= f356fe0cba0e3523e538987916bd2acedd4e6f41 < 317d32e1a8deaf1c01c388badc667334c39e62ca","Linux >= f356fe0cba0e3523e538987916bd2acedd4e6f41 < 01027b2fcb74dade59fb833b51023f6593b6a9a2","Linux 3.11"],"published":"2026-09-16","updated":"2026-09-21","sourceUpdated":"2026-09-21T14:17:27.383","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89838","references":[{"url":"https://git.kernel.org/stable/c/01027b2fcb74dade59fb833b51023f6593b6a9a2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/317d32e1a8deaf1c01c388badc667334c39e62ca","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/35c5abccd0924b02ad34126f562d93c8d75b0831","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00157,"epssPercentile":0.05273,"ingestedAt":"2026-09-16T10:53:53.997Z","slug":"CVE-2026-89838","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: limit recovery filename logging to stored length\n\nF2FS stores recovery filenames as a length plus a fixed-size i_name\nbuffer.  The buffer is not NUL-terminated, but recover_inode() and\nrecover_dentry() print it with %s.\n\nFor a 255-byte filename, recovery logging can read past i_name into the\nfollowing raw inode fields.\n\nPrint the name with a precision bounded by i_namelen and F2FS_NAME_LEN.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":205224,"id":"CVE-2026-89838","ts":1789570705810,"field":"cvss","old":null,"new":"7.1"},{"seq":205223,"id":"CVE-2026-89838","ts":1789570705810,"field":"severity","old":"none","new":"high"}]}