CVE-2026-43187

Summary: CVE-2026-43187 affects the Linux kernel XFS freemap handling in xattr leaf entries. The root cause is a bug in the freemap update logic in _leaf_add that can leave behind zero‑length freemap entries with a nonzero base, and later entries could be updated incorrectly so freemap entries ov...

CVE-2026-43187

In the Linux kernel, the following vulnerability has been resolved: xfs: delete attr leaf freemap entries when empty Back in commit 2a2b5932db6758 "xfs: fix attr leaf header freemap.size underflow", Brian Foster observed that it's possible for a small freemap at the end of the end of the xattr...

CVE-2026-43158 xfs: fix freemap adjustments when adding xattrs to leaf blocks

In the Linux kernel, the following vulnerability has been resolved: xfs: fix freemap adjustments when adding xattrs to leaf blocks xfs/592 and xfs/794 both trip this assertion in the leaf block freemap adjustment code after 20 minutes of running on my test VMs: ASSERTichdr-firstused = ichdr-count...

CVE-2026-43158

CVE-2026-43158 is a Linux kernel XFS vulnerability where freemap adjustments in leaf blocks when adding xattrs can collide with the entries area, causing an assertion and potential filesystem shutdown (DoS). The root cause is incorrect freemap sizing/update logic in xfs_attr3_leaf_add_work, leadi...

CVE-2026-43153

CVE-2026-43153 affects the Linux kernel’s XFS attribute handling: the function xfs_attr_leaf_hasname has an problematic calling convention that can mishandle buffers. The fix is to open-code xfs_attr_leaf_hasname in callers so each caller of xfs_attr3_leaf_read manages buffer release. The issue i...

CVE-2026-43153 xfs: remove xfs_attr_leaf_hasname

In the Linux kernel, the following vulnerability has been resolved: xfs: remove xfsattrleafhasname The calling convention of xfsattrleafhasname is problematic, because it returns a NULL buffer when xfsattr3leafread fails, a valid buffer when xfsattr3leaflookupint returns -ENOATTR or -EEXIST, and ...

CVE-2026-43153

In the Linux kernel, the following vulnerability has been resolved: xfs: remove xfsattrleafhasname The calling convention of xfsattrleafhasname is problematic, because it returns a NULL buffer when xfsattr3leafread fails, a valid buffer when xfsattr3leaflookupint returns -ENOATTR or -EEXIST, and ...

CVE-2026-43153 xfs: remove xfs_attr_leaf_hasname

In the Linux kernel, the following vulnerability has been resolved: xfs: remove xfsattrleafhasname The calling convention of xfsattrleafhasname is problematic, because it returns a NULL buffer when xfsattr3leafread fails, a valid buffer when xfsattr3leaflookupint returns -ENOATTR or -EEXIST, and ...

CVE-2026-43063

A flaw was found in the Linux kernel's XFS filesystem. When recovering attributes, if the xlogrecoveryiget function fails to obtain a valid pointer, a subsequent irele operation attempts to release an invalid memory address. This dangling pointer issue can be exploited by a local attacker,...

SUSE CVE-2026-43063

In the Linux kernel, the following vulnerability has been resolved: xfs: don't irele after failing to iget in xfsattrirecoverwork xlogrecoveryiget never set @ip to a valid pointer if they return an error, so this irele will walk off a dangling pointer. Fix that...

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 an issue with the function call convention in the xfs driver’s xfsattrleafhasname function. This...

PT-2026-37493

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A problem exists in the XFS filesystem component where the xfs attr leaf hasname function has a problematic calling convention. The function may return a NULL buffer if xfs attr3 leaf re...

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 improper cleanup of freemap entries in xfs attribute leaf nodes. This issue may lead to underflow...

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 an error in freemap adjustment during the process of adding extended attributes to extents by the...

Linux Distros Unpatched Vulnerability : CVE-2026-43187

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xfs: delete attr leaf freemap entries when empty Back in commit 2a2b5932db6758 xfs: fix attr leaf header freemap.size underflow, Brian Foster observed that it's...

PT-2026-37527

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the XFS file system where a small freemap at the end of the xattr entries array can experience a size underflow during array expansion. This can result in zero-length...

Linux Distros Unpatched Vulnerability : CVE-2026-43158

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xfs: fix freemap adjustments when adding xattrs to leaf blocks xfs/592 and xfs/794 both trip this assertion in the leaf block freemap adjustment code after 20...

PT-2026-37498

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the XFS file system where incorrect freemap adjustments occur when adding extended attributes xattrs to leaf blocks. Specifically, when adding multiple xattrs, the...

Linux Distros Unpatched Vulnerability : CVE-2026-43063

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xfs: don't irele after failing to iget in xfsattrirecoverwork xlogrecoveryiget never set @ip to a valid pointer if they return an error, so this irele will walk...

Linux Distros Unpatched Vulnerability : CVE-2026-43153

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xfs: remove xfsattrleafhasname The calling convention of xfsattrleafhasname is problematic, because it returns a NULL buffer when xfsattr3leafread fails, a vali...