{"apiVersion":"1.0","identifier":"CVE-2026-74308","description":"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() without checking if the EXT4_STATE_MAY_INLINE_DATA flag is still set on the inode. If a previous attempt to convert the inline data to an extent failed (e.g. due to ENOSPC), the EXT4_STATE_MAY_INLINE_DATA flag is cleared, but the EXT4_INODE_INLINE_DATA flag remains set. In this scenario, the next call to ext4_write_begin() will not prepare the inline data xattr for writing, but ext4_journalled_write_end() will incorrectly attempt to write to it, triggering a BUG_ON(pos + len > EXT4_I(inode)->i_inline_size) in ext4_write_inline_data() since i_inline_size was not expanded. Fix this by ensuring that ext4_journalled_write_end() only calls ext4_write_inline_data_end() if the EXT4_STATE_MAY_INLINE_DATA flag is set, mirroring the behavior of ext4_write_end() and ext4_da_write_end().","publishedAt":"2026-08-15T06:22:30","lastModifiedAt":"2026-08-17T06:19:24","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74308","cvssScore":null,"cvssVector":"Pending","epssProbability":0.00168,"riskScore":0,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74308","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74308","en":"https://www.redsauce.net/en/cves/CVE-2026-74308","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74308","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74308","de":"https://www.redsauce.net/de/cves/CVE-2026-74308","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74308","el":"https://www.redsauce.net/el/cves/CVE-2026-74308"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74308"}}