AZL-99044 CVE-2026-80737 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: serial: amba-pl011: synchronize DMA teardown dmaengineterminateall does not wait for a running callback, so the TX callback can still touch the TX buffer after it is freed. The RX poll timer reads the RX buffers without the port...

AZL-99072 CVE-2026-80738 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skstate before skprotocol in bpftcpsyncookie bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type ARGPTRTOBTFIDSOCKCOMMON. However, they access sk-skprotocol without validating...

CVE-2026-80734

In the Linux kernel, the following vulnerability has been resolved: btrfs: initialize inode mapping flags for cached inodes BUG When running generic/795 with 8K block size, 4K page size, the test always fails, triggering some ASSERTs related to folio size: 795 241074: dropcaches: 3 assertion...

AZL-99054 CVE-2026-80731 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: net: remove CAPSYSRAWIO zero-padding in devvalidateheader devvalidateheader reads dev-hardheaderlen directly when zero-padding short link layer headers for CAPSYSRAWIO holders: if capableCAPSYSRAWIO memsetllheader + len, 0,...

AZL-99062 CVE-2026-80726 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page Explicitly clear role.invalid when deriving a child shadow page's role from its parent to harden against bugs elsewhere in KVM, as violating KVM's...

AZL-99059 CVE-2026-80728 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: Revert "drm/amdgpu: fix aperture mapping leak" devres teardown is LIFO. The aperture devres node was registered after the DRM device node, so devresreleaseall unmaps the aperture before the DRM device release callback fires...

CVE-2026-80731

In the Linux kernel, the following vulnerability has been resolved: net: remove CAPSYSRAWIO zero-padding in devvalidateheader devvalidateheader reads dev-hardheaderlen directly when zero-padding short link layer headers for CAPSYSRAWIO holders: if capableCAPSYSRAWIO memsetllheader + len, 0,...

AZL-99051 CVE-2026-80730 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix crash passing ERRPTR to kthreadstop In testringbuffer's outfree cleanup loop, the check !rbthreadscpu only catches NULL entries and misses entries that hold an ERRPTR. rbthreads is static, so unassigned slots are...

AZL-99026 CVE-2026-80732 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: ata: patasl82c105: fix bridge revision use-after-free pcigetslot returns a referenced PCI device. Commit 44c10138fd4b "PCI: Change all drivers to use pcidevice-revision" replaced a configuration-space read with direct access to t...

CVE-2026-80732

In the Linux kernel, the following vulnerability has been resolved: ata: patasl82c105: fix bridge revision use-after-free pcigetslot returns a referenced PCI device. Commit 44c10138fd4b "PCI: Change all drivers to use pcidevice-revision" replaced a configuration-space read with direct access to t...

CVE-2026-80726

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page Explicitly clear role.invalid when deriving a child shadow page's role from its parent to harden against bugs elsewhere in KVM, as violating KVM's...

CVE-2026-76642

util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privileged operations on pre-existing filesystems. Attackers can exploit X-mount.idmap or X-mount.owner hooks to clone filesystems with...

AZL-99081 CVE-2026-76642 affecting package util-linux 2.40.2-5

util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privileged operations on pre-existing filesystems. Attackers can exploit X-mount.idmap or X-mount.owner hooks to clone filesystems with...

util-linux: util-linux: nsenter --join-cgroup leaks root cgroup migration authority

The nsenter --join-cgroup option opens the target cgroup.procs file as root and leaves that file descriptor open across later namespace and credential changes and across execve. Because the kernel checks later cgroup migrations using the credentials from the original open, a program run in an...

util-linux: util-linux: restricted bind mounts do not pin the source, allowing X-mount.owner/group/mode redirection

A flaw was found in util-linux. Restricted bind mounts take the source path from fstab but do not pin that source before the privileged mount. A local unprivileged user who can replace the authorized source or a writable ancestor can redirect SUID mount8 to bind another host directory. If the fst...

util-linux: util-linux: failed external mount helper still runs privileged X-mount post-hooks

When an external mount. helper runs but exits with a nonzero status, libmount still treats the helper invocation as successful and runs privileged post-mount hooks. A local unprivileged user with an /etc/fstab entry that uses the user option together with X-mount.idmap or X-mount.owner/group/mode...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: util-linux: libblkid-2.42.2-3.4.hum1 aarch64, x8664 libblkid-devel-2.42.2-3.4.hum1 aarch64, x8664 libfdisk-2.42.2-3.4.hum1 aarch64, x8664 libfdisk-devel-2.42.2-3.4.hum1 aarch64, x8664...

util-linux: util-linux: X-mount.subdir detached-tree resolution can escape via intermediate symlinks

The X-mount.subdir option uses a detached-tree fast path on Linux 6.15 and later and passes the configured subdirectory to opentree with ATSYMLINKNOFOLLOW. That flag does not stop intermediate symlink traversal or keep resolution inside the newly mounted filesystem. A local unprivileged user with...

CVE-2025-40271

🔴 CVE-2025-40271: Critical Use-After-Free Vulnerability in the Linux Kernel 🛡️ Vulnerability Details CVE-2025-40271 is a critical Use-After-Free UAF vulnerability affecting the /proc filesystem of the Linux kernel. The flaw resides in the procreaddirde function, responsible for listing the content...

CVE-2026-31431-Copy-Fail-R-pertoire-de-Pr-vention

🔴 CVE-2026-31431 — Copy Fail Escalada de Privilegios Local en el Kernel de Linux LPE — Repositorio de Investigación Defensiva 📖 Presentación Copy Fail CVE-2026-31431 es una vulnerabilidad de tipo Escalada de Privilegios Local LPE que afecta al kernel de Linux mediante una corrupción controlada de...