{"id":"CVE-2026-74308","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-74308","generatedAt":"2026-10-28T01:13:50.775Z","title":"In the Linux kernel, the following vulnerability has been resolved: ext4: fix kernel BUG in ext4_write_inline_data_end When the data=journal mount option is used, the ext4_journalled_write_end() function incorrectly calls ext4_write_inline_data_end()…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix kernel BUG in ext4_write_inline_data_end\n\nWhen the data=journal mount option is used, the ext4_journalled_write_end()\nfunction incorrectly calls ext4_write_inline_data_end() without checking\nif the EXT4_STATE_MAY_INLINE_DATA flag is still set on the inode.\n\nIf a previous attempt to convert the inline data to an extent failed (e.g.\ndue to ENOSPC), the EXT4_STATE_MAY_INLINE_DATA flag is cleared, but\nthe EXT4_INODE_INLINE_DATA flag remains set. In this scenario, the next\ncall to ext4_write_begin() will not prepare the inline data xattr for\nwriting, but ext4_journalled_write_end() will incorrectly attempt to write\nto it, triggering a BUG_ON(pos + len > EXT4_I(inode)->i_inline_size) in\next4_write_inline_data() since i_inline_size was not expanded.\n\nFix this by ensuring that ext4_journalled_write_end() only calls\next4_write_inline_data_end() if the EXT4_STATE_MAY_INLINE_DATA flag is\nset, mirroring the behavior of ext4_write_end() and ext4_da_write_end().","published":"2026-08-15T06:22:31.000Z","lastModified":"2026-08-17T06:19:25.000Z","status":"Received","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":null,"cwe":[],"affected":[],"epss":{"score":0.00168,"percentile":0.06051,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"unknown","text":"Not yet scored. NVD analysis is pending; check back once CVSS and EPSS values are published."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/0ae42b51607240990614e0843f0d3529aaff62cc","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/260830a9a706f5d335398236fc788ce32f220de1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9808ae9fae996afa942bd963a39c9b1cdeebd0bd","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ad09aa45965d3fafaf9963bc78109b73c0f9ac8d","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f00f5c0dd55319bc33b76f72c853bda0e0a32eda","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74308","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}