CVE-2026-45892 ext4: drop extent cache after doing PARTIAL_VALID1 zeroout

In the Linux kernel, the following vulnerability has been resolved: ext4: drop extent cache after doing PARTIALVALID1 zeroout When splitting an unwritten extent in the middle and converting it to initialized in ext4splitextent with the EXT4EXTMAYZEROOUT and EXT4EXTDATAVALID2 flags set, it could...

CVE-2026-45892

In the Linux kernel, the following vulnerability has been resolved: ext4: drop extent cache after doing PARTIALVALID1 zeroout When splitting an unwritten extent in the middle and converting it to initialized in ext4splitextent with the EXT4EXTMAYZEROOUT and EXT4EXTDATAVALID2 flags set, it could...

CVE-2026-45892

CVE-2026-45892 affects the Linux kernel ext4 extent handling. The issue occurs when splitting an unwritten extent in the middle with EXT4_EXT_MAY_ZEROOUT and EXT4_EXT_DATA_VALID2, potentially leaving a stale unwritten extent in the extent status tree after maps are updated. The mitigation is a pa...

CVE-2026-45858 ext4: don't zero the entire extent if EXT4_EXT_DATA_PARTIAL_VALID1

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-2026-45858

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-2026-45858

The CVE-2026-45858 entry concerns the Linux kernel ext4 behavior: when allocating initialized blocks from a large unwritten extent or splitting an unwritten extent during end I/O, a stale data issue could occur if a split happens in the middle. The published details explain that ext4_split_extent...

CVE-2026-45858 ext4: don't zero the entire extent if EXT4_EXT_DATA_PARTIAL_VALID1

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-2026-45858

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...

PT-2026-43852

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ext4 file system when allocating blocks during within-EOF Direct I/O DIO and writeback with dioread nolock enabled. When splitting a large unwritten extent, the ex...

PT-2026-43759

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ext4 file system where splitting an unwritten extent and converting it to initialized can leave a stale unwritten extent in the status tree. This occurs in the ext...

PT-2026-43947

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ocfs2 module where direct I/O DIO operations can lead to credit exhaustion in JBD2 Journaling Block Device, resulting in system warnings. This occurs during the...

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-2026-45892

In the Linux kernel, the following vulnerability has been resolved: ext4: drop extent cache after doing PARTIALVALID1 zeroout When splitting an unwritten extent in the middle and converting it to initialized in ext4splitextent with the EXT4EXTMAYZEROOUT and EXT4EXTDATAVALID2 flags set, it could...

Linux Distros Unpatched Vulnerability : CVE-2026-45912

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 statu...

Linux Distros Unpatched Vulnerability : CVE-2026-45858

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ext4: don't zero the entire extent if EXT4EXTDATAPARTIALVALID1 When allocating initialized blocks from a large unwritten extent, or when splitting an unwritten...

Linux Distros Unpatched Vulnerability : CVE-2026-45899

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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,...

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-2026-45899

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...

PT-2026-43725

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ext4 file system when allocating initialized blocks from a large unwritten extent or splitting an unwritten extent during end I/O. A potential for stale data occur...

PT-2026-43766

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 failure during the split extent process may cause the system to return an error immediately while some extents are still being processed...