UBUNTU-CVE-2026-45899

In the Linux kernel, the following vulnerability has been resolved: ext4: drop extent cache when splitting extent fails When the split extent fails, we might leave some extents still being processed and return an error directly, which will result in stale extent entries remaining in the extent...

UBUNTU-CVE-2026-46061

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix deadlock in jbd2journalcancelrevoke Commit f76d4c28a46a "fs/jbd2: use sleeping version of findgetblock" changed jbd2journalcancelrevoke to use findgetblocknonatomic which holds the folio lock instead of iprivatelock. Th...

UBUNTU-CVE-2026-45912

In the Linux kernel, the following vulnerability has been resolved: ext4: don't cache extent during splitting extent Caching extents during the splitting process is risky, as it may result in stale extents remaining in the status tree. Moreover, in most cases, the corresponding extent block entri...

CVE-2026-45858

In the Linux kernel, the following vulnerability has been resolved: ext4: don't zero the entire extent if EXT4EXTDATAPARTIALVALID1 When allocating initialized blocks from a large unwritten extent, or when splitting an unwritten extent during end I/O and converting it to initialized, there is...

AZL-88556 CVE-2026-45858 affecting package kernel for versions less than 6.6.139.1-1

In the Linux kernel, the following vulnerability has been resolved: ext4: don't zero the entire extent if EXT4EXTDATAPARTIALVALID1 When allocating initialized blocks from a large unwritten extent, or when splitting an unwritten extent during end I/O and converting it to initialized, there is...

UBUNTU-CVE-2026-45858

In the Linux kernel, the following vulnerability has been resolved: ext4: don't zero the entire extent if EXT4EXTDATAPARTIALVALID1 When allocating initialized blocks from a large unwritten extent, or when splitting an unwritten extent during end I/O and converting it to initialized, there is...

CVE-2026-46094 ext4: fix bounds check in check_xattrs() to prevent out-of-bounds access

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bounds check in checkxattrs to prevent out-of-bounds access The bounds check for the next xattr entry in checkxattrs uses void next = end, which allows next to point within sizeofu32 bytes of end. On the next loop...

CVE-2026-46094

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bounds check in checkxattrs to prevent out-of-bounds access The bounds check for the next xattr entry in checkxattrs uses void next = end, which allows next to point within sizeofu32 bytes of end. On the next loop...

CVE-2026-46094

CVE-2026-46094 affects the Linux kernel ext4 code. The vulnerability arises from a bounds check in check_xattrs() for the next xattr entry, where the code compared (void*)next >= end. This could allow next to point within sizeof(u32) bytes of end, and on the subsequent loop iteration IS_LAST_E...

CVE-2026-46094 ext4: fix bounds check in check_xattrs() to prevent out-of-bounds access

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bounds check in checkxattrs to prevent out-of-bounds access The bounds check for the next xattr entry in checkxattrs uses void next = end, which allows next to point within sizeofu32 bytes of end. On the next loop...

CVE-2026-46094

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bounds check in checkxattrs to prevent out-of-bounds access The bounds check for the next xattr entry in checkxattrs uses void next = end, which allows next to point within sizeofu32 bytes of end. On the next loop...

CVE-2026-46046 ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()

In the Linux kernel, the following vulnerability has been resolved: ext4: fix missing brelse in ext4xattrinodedecrefall The commit c8e008b60492 "ext4: ignore xattrs past end" introduced a refcount leak in when blockcsum is false. ext4xattrinodedecrefall calls ext4getinodeloc to get iloc.bh, but...

CVE-2026-46046

The CVE reports a refcount leak in ext4_xattr_inode_dec_ref_all() due to not releasing iloc with brelse() after ext4_get_inode_loc(), fixed by commit c8e008b6. OSV entries show patches in Root:Ubuntu 22.04/24.04, Debian, Debian-based RootIO builds, and openSUSE kernel-devel 7.0.11-1.1 for GA medi...

CVE-2026-46046

In the Linux kernel, the following vulnerability has been resolved: ext4: fix missing brelse in ext4xattrinodedecrefall The commit c8e008b60492 "ext4: ignore xattrs past end" introduced a refcount leak in when blockcsum is false. ext4xattrinodedecrefall calls ext4getinodeloc to get iloc.bh, but...

CVE-2026-46046 ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()

In the Linux kernel, the following vulnerability has been resolved: ext4: fix missing brelse in ext4xattrinodedecrefall The commit c8e008b60492 "ext4: ignore xattrs past end" introduced a refcount leak in when blockcsum is false. ext4xattrinodedecrefall calls ext4getinodeloc to get iloc.bh, but...

EUVD-2026-32428

In the Linux kernel, the following vulnerability has been resolved: ext4: fix missing brelse in ext4xattrinodedecrefall The commit c8e008b60492 "ext4: ignore xattrs past end" introduced a refcount leak in when blockcsum is false. ext4xattrinodedecrefall calls ext4getinodeloc to get iloc.bh, but...

CVE-2026-46046

In the Linux kernel, the following vulnerability has been resolved: ext4: fix missing brelse in ext4xattrinodedecrefall The commit c8e008b60492 "ext4: ignore xattrs past end" introduced a refcount leak in when blockcsum is false. ext4xattrinodedecrefall calls ext4getinodeloc to get iloc.bh, but...

CVE-2026-45985 ext4: don't set EXT4_GET_BLOCKS_CONVERT when splitting before submitting I/O

In the Linux kernel, the following vulnerability has been resolved: ext4: don't set EXT4GETBLOCKSCONVERT when splitting before submitting I/O When allocating blocks during within-EOF DIO and writeback with dioreadnolock enabled, EXT4GETBLOCKSPREIO was set to split an existing large unwritten...

CVE-2026-45985

CVE-2026-45985 affects the Linux kernel/ext4: during within-EOF direct I/O and writeback with dioread_nolock, unwritten extents could be converted incorrectly when splitting before submitting I/O, potentially exposing stale data. Root cause: EXT4_GET_BLOCKS_CONVERT was set during ext4_split_conve...

CVE-2026-45985

In the Linux kernel, the following vulnerability has been resolved: ext4: don't set EXT4GETBLOCKSCONVERT when splitting before submitting I/O When allocating blocks during within-EOF DIO and writeback with dioreadnolock enabled, EXT4GETBLOCKSPREIO was set to split an existing large unwritten...