CVE-2026-89722

In the Linux kernel, the following vulnerability has been resolved: PCI/sysfs: Fix out-of-bounds read in pciwritelegacyio pciwritelegacyio loads 4 bytes from the kernfs write buffer regardless of how many bytes userspace wrote: if count != 1 && count != 2 && count != 4 return -EINVAL; return...

CVE-2026-89722

CVE-2026-89722 is an out-of-bounds read in the Linux kernel's PCI/sysfs subsystem, specifically in pci_write_legacy_io(). The function unconditionally loaded a 4-byte (u32) value from the kernfs write buffer regardless of the actual write size (1, 2, or 4 bytes). Since kernfs_fop_write_iter() all...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: kernfs: Fixed a UAF Use-after-Free issue during polling when the opened file is released. A Use-after-Free vulnerability was identified in the PSI Pressure Stall Information monitoring mechanism: BUG: KASAN: slab-use-after-fre...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: kernfs: A use-after-free issue has been fixed in kernfsremove. Syzkaller managed to trigger concurrent calls to kernfsremovebynamens for the same file, resulting in a KASAN detected use-after-free. This race condition occurs...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: cgroup: cgroupgetfromid must check that the looked-up kn is a directory. cgroup must be a kernfs directory; otherwise, a kernel panic will occur, especially when the cgroup ID is provided from userspace...

PT-2026-79598

In the Linux kernel, the following vulnerability has been resolved: sched ext: Take cgroup lock first in scx cgroup lock scx cgroup lock write-locks scx cgroup ops rwsem and then takes cgroup lock, which can deadlock through kernfs: scx enable/disable cgroup rmdir cpu.weight write...

Linux Distros Unpatched Vulnerability : CVE-2026-72080

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fs/resctrl: Fix use-after-free during unmount During unmount or failure teardown all mondata structures that contain monitoring event file private data are free...

AZL-96507 CVE-2026-74342 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: kernfs: link kn to its parent before the LSM init hook After commit 12e9e3cd03b5 "simpexattr: use per-sb cache", kernfsxattrset and kernfsxattrget compute the cache via kernfsrootkn before any other check. kernfsrootkn walks...

CVE-2026-74342

In the Linux kernel, the following vulnerability has been resolved: kernfs: link kn to its parent before the LSM init hook After commit 12e9e3cd03b5 "simpexattr: use per-sb cache", kernfsxattrset and kernfsxattrget compute the cache via kernfsrootkn before any other check. kernfsrootkn walks...

CVE-2026-74343

In the Linux kernel, the following vulnerability has been resolved: kernfs: fix xattr race condition with multiple superblocks Multiple superblocks with different namespaces can share the same kernfsnode when kernfstestsuper finds a matching root but different namespace. This means multiple inode...

CVE-2026-74343

In the Linux kernel, the following vulnerability has been resolved: kernfs: fix xattr race condition with multiple superblocks Multiple superblocks with different namespaces can share the same kernfsnode when kernfstestsuper finds a matching root but different namespace. This means multiple inode...

UBUNTU-CVE-2026-74343

In the Linux kernel, the following vulnerability has been resolved: kernfs: fix xattr race condition with multiple superblocks Multiple superblocks with different namespaces can share the same kernfsnode when kernfstestsuper finds a matching root but different namespace. This means multiple inode...

UBUNTU-CVE-2026-74342

In the Linux kernel, the following vulnerability has been resolved: kernfs: link kn to its parent before the LSM init hook After commit 12e9e3cd03b5 "simpexattr: use per-sb cache", kernfsxattrset and kernfsxattrget compute the cache via kernfsrootkn before any other check. kernfsrootkn walks...

CVE-2026-74342

In the Linux kernel, the following vulnerability has been resolved: kernfs: link kn to its parent before the LSM init hook After commit 12e9e3cd03b5 "simpexattr: use per-sb cache", kernfsxattrset and kernfsxattrget compute the cache via kernfsrootkn before any other check. kernfsrootkn walks...

UBUNTU-CVE-2026-72080

In the Linux kernel, the following vulnerability has been resolved: fs/resctrl: Fix use-after-free during unmount During unmount or failure teardown all mondata structures that contain monitoring event file private data are freed after which kernfs nodes are removed. However, the RDTDELETED flag ...

UBUNTU-CVE-2026-68456

In the Linux kernel, the following vulnerability has been resolved: usb: atm: ueagle-atm: wait for pre-firmware load in .disconnect ueagle-atm uses the asynchronous requestfirmwarenowait in .probe, but does not wait for its completion, not even in .disconnect; so, if the device is unplugged...

CVE-2026-74343 kernfs: fix xattr race condition with multiple superblocks

In the Linux kernel, the following vulnerability has been resolved: kernfs: fix xattr race condition with multiple superblocks Multiple superblocks with different namespaces can share the same kernfsnode when kernfstestsuper finds a matching root but different namespace. This means multiple inode...

EUVD-2026-59490

In the Linux kernel, the following vulnerability has been resolved: kernfs: fix xattr race condition with multiple superblocks Multiple superblocks with different namespaces can share the same kernfsnode when kernfstestsuper finds a matching root but different namespace. This means multiple inode...

CVE-2026-74343 kernfs: fix xattr race condition with multiple superblocks

In the Linux kernel, the following vulnerability has been resolved: kernfs: fix xattr race condition with multiple superblocks Multiple superblocks with different namespaces can share the same kernfsnode when kernfstestsuper finds a matching root but different namespace. This means multiple inode...

CVE-2026-74343

CVE-2026-74343 describes a Linux kernel kernfs xattr race: multiple inodes across different superblocks can share kernfs_node->iattr->xattrs, and VFS per-inode locks are not enough to serialize concurrent xattr modifications. The fix introduces per-node hashing mutexes (renaming open_file_m...