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...

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...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the ext4 module’s inability to write to unallocated regions, potentially leading to issues with...

Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1746)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1746 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE CVE-2026-23401 In the Linux kernel, the followi...

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 kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from insufficient boundary checking in the checkxattrs function of the ext4 file system. This...

PT-2026-43962

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds access issue exists in the check xattrs function of the ext4 file system. The bounds check for the next extended attribute xattr entry uses a comparison that allows the...

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-2026-45920

In the Linux kernel, the following vulnerability has been resolved: ext4: fix dirtyclusters double decrement on fs shutdown fstests test generic/388 occasionally reproduces a warning in ext4putsuper associated with the dirty clusters count: WARNING: CPU: 7 PID: 76064 at fs/ext4/super.c:1324...

PT-2026-43913

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A refcount leak occurs in the ext4 filesystem when block csum is false. This happens because the function ext4 xattr inode dec ref all calls ext4 get inode loc to obtain iloc.bh but fail...

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-2026-43787

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 double decrement of the dirty clusters counter occurs during file system shutdown. This happens in the error path between the ext4 mb mark...

Linux Distros Unpatched Vulnerability : CVE-2026-46046

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ext4: fix missing brelse in ext4xattrinodedecrefall The commit c8e008b60492 ext4: ignore xattrs past end introduced a refcount leak in when blockcsum is false...

Linux Distros Unpatched Vulnerability : CVE-2026-45948

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ext4: fix memory leak in ext4extshiftextents In ext4extshiftextents, if the extent is NULL in the while loop, the function returns immediately without releasing...

Linux Distros Unpatched Vulnerability : CVE-2026-45942

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ext4: fix e4b bitmap inconsistency reports A bitmap inconsistency issue was observed during stress tests under mixed huge-page workloads. Ext4 reported multiple...

Linux Distros Unpatched Vulnerability : CVE-2026-45892

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 after doing PARTIALVALID1 zeroout When splitting an unwritten extent in the middle and converting it to initialized in ext4splitextent...

USN-8278-2: Linux kernel (Azure) vulnerabilities

It was discovered that the Linux kernel algifaead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. CVE-2026-31431 Several security issues were discovered in th...

CVE-2026-34961

barebox prior to version 2026.04.0 contains out-of-bounds read vulnerabilities in ext4 extent parsing due to missing validation of the ehentries field against buffer capacity in fs/ext4/ext4common.c. Attackers can supply a malicious ext4 filesystem image via USB, SD card, or network boot to trigg...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: ext4: validate pidx bounds in ext4extcorrectindexes CVE-2026-31449 In the Linux kernel, the following vulnerability has been resolved: net/rds: reset opnents when zerocopy page pin fails CVE-2026-43494 In the Linu...

Important: kernel6.18

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE CVE-2026-23401 In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Only WARN in direct MMUs when overwriti...