Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098946)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098946 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: don't zero the entire extent if EXT4EXTDATAPARTIALVALID1 When allocating initialized blocks...

SUSE 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...

SUSE 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...

EUVD-2026-32270

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...

EUVD-2026-32358

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...

EUVD-2026-32324

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-2026-45912

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...

UBUNTU-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...

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...

UBUNTU-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...

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...

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...

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-2026-45985 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-2026-45912 ext4: don't cache extent during splitting extent

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 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 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

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...