EUVD-2026-82122

In the Linux kernel, the following vulnerability has been resolved: ext4: drain in-flight DIO before buffered write fallback generic/746 started failing intermittently on ext3 no-extent inodes. The test triggers 'Page cache invalidation failure on direct I/O' warnings and subsequent fsync returns...

CVE-2026-92500 ext4: use fsdata to track inline data write state and fix race

In the Linux kernel, the following vulnerability has been resolved: ext4: use fsdata to track inline data write state and fix race Instead of checking the live inode state ext4hasinlinedatainode and ext4testinodestateinode, EXT4STATEMAYINLINEDATA in the writeend handlers, use the fsdata parameter...

CVE-2026-92500 ext4: use fsdata to track inline data write state and fix race

In the Linux kernel, the following vulnerability has been resolved: ext4: use fsdata to track inline data write state and fix race Instead of checking the live inode state ext4hasinlinedatainode and ext4testinodestateinode, EXT4STATEMAYINLINEDATA in the writeend handlers, use the fsdata parameter...

CVE-2026-92500

This CVE affects the Linux kernel ext4 filesystem . A race condition exists between write_begin and write_end handlers: a concurrent thread (such as ext4_page_mkwrite) can convert inline data to an extent during this window, causing the write_end handlers to fall through to extent-based logic wit...

CVE-2026-92501 ext4: drain in-flight DIO before buffered write fallback

In the Linux kernel, the following vulnerability has been resolved: ext4: drain in-flight DIO before buffered write fallback generic/746 started failing intermittently on ext3 no-extent inodes. The test triggers 'Page cache invalidation failure on direct I/O' warnings and subsequent fsync returns...

CVE-2026-92499 ext4: validate readdir offset before accessing dirent

In the Linux kernel, the following vulnerability has been resolved: ext4: validate readdir offset before accessing dirent A corrupted directory can trigger the following KASAN report when ext4readdir resumes from an invalid position: BUG: KASAN: use-after-free in ext4checkdirentry+0x5ef/0x820 Rea...

EUVD-2026-82120

In the Linux kernel, the following vulnerability has been resolved: ext4: validate readdir offset before accessing dirent A corrupted directory can trigger the following KASAN report when ext4readdir resumes from an invalid position: BUG: KASAN: use-after-free in ext4checkdirentry+0x5ef/0x820 Rea...

CVE-2026-92499

CVE-2026-92499 affects the Linux kernel ext4 filesystem. A corrupted directory entry with an invalid rec_len field can cause ext4_readdir() to resume from an invalid offset, resulting in an out-of-bounds read that KASAN reports as a use-after-free in __ext4_check_dir_entry(). The rescan path only...

CVE-2026-92499 ext4: validate readdir offset before accessing dirent

In the Linux kernel, the following vulnerability has been resolved: ext4: validate readdir offset before accessing dirent A corrupted directory can trigger the following KASAN report when ext4readdir resumes from an invalid position: BUG: KASAN: use-after-free in ext4checkdirentry+0x5ef/0x820 Rea...

EUVD-2026-82115

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bufferhead leak in ext4initorphaninfo ext4initorphaninfo reads orphan file blocks with ext4bread and stores the returned bufferhead in oi-ofbinfoi.obbh. If ext4bread succeeds but the orphan block magic or checksum...

CVE-2026-92502: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: clear stale xarray tags on folios skipped during writeback In data=journal mode, the writeback thread can hit the WARNONONCEsbrdonlysb in ext4journalcheckstart while the superblock is being remounted read-only during reboot...

PT-2026-94810

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ext4 file system when operating in data=journal mode. During a system reboot, while the superblock is being remounted as read-only, the writeback thread may trigge...

CVE-2026-92501: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: drain in-flight DIO before buffered write fallback generic/746 started failing intermittently on ext3 no-extent inodes. The test triggers 'Page cache invalidation failure on direct I/O' warnings and subsequent fsync returns...

CVE-2026-92503: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: fix ABBA deadlock in ext4xattrinodecachefind Syzbot/stress-ng reported an ABBA deadlock in ext4 when exercising concurrent xattr workloads using the eainode mount/format option. The deadlock occurs between the running...

CVE-2026-92500: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: use fsdata to track inline data write state and fix race Instead of checking the live inode state ext4hasinlinedatainode and ext4testinodestateinode, EXT4STATEMAYINLINEDATA in the writeend handlers, use the fsdata parameter...

PT-2026-94807

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ext4 file system where a corrupted directory can cause a use-after-free error. This occurs when the ext4 readdir function resumes from an invalid position...

PT-2026-94802

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak occurs in the ext4 init orphan info function when reading orphan file blocks using ext4 bread. If the function successfully retrieves a buffer head but subsequently fails...

PT-2026-94808

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the ext4 file system when handling inline data writes. A concurrent thread, such as ext4 page mkwrite, can convert inline data to an extent between the write...

PT-2026-94809

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the ext4 file system when handling Direct I/O DIO writes to holes on no-extent inodes. When a DIO write fails and falls back to buffered I/O, an unprotected...

PT-2026-94811

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An ABBA deadlock occurs in the ext4 file system when processing concurrent xattr workloads using the ea inode mount or format option. The deadlock happens between a running transaction a...