Important: Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update

An update for kernel-rt is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

kernel: RDMA/rxe: Fix a use-after-free problem in rxe_mmap

A flaw was found in the Linux kernel's RDMA/rxe component. A race condition in the rxemmap function, which manages memory for Remote Direct Memory Access RDMA operations, can lead to a use-after-free vulnerability. A local attacker could exploit this timing issue to cause a system crash, resultin...

CVE-2026-86805

A flaw was found in glibc, specifically within its dynamic loader ld.so. A local attacker can exploit a time-of-check to time-of-use TOCTOU race condition to escalate privileges and execute arbitrary code. This occurs when the dynamic loader expands $ORIGIN in DTRPATH for setuid/setgid programs,...

CVE-2026-93380

A race condition flaw was found in the FileSystem component of the Chromium browser. Upstream bugs: https://code.google.com/p/chromium/issues/detail?id=498411599...

SUSE CVE-2026-90184

In the Linux kernel, the following vulnerability has been resolved: nullblk: serialize configfs attribute updates with device setup The attribute store methods generated with NULLBDEVICEATTR refuse to change the configuration of a live device by testing NULLBDEVFLCONFIGURED, but that flag is only...

SUSE CVE-2026-90393

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential UAF in bpfnetnslinkupdateprog In bpfnetnslinkupdateprog, the checks for oldprog and prog type are currently performed locklessly before acquiring netnsbpfmutex. This creates a race condition that can lead to a...

SUSE CVE-2026-90395

In the Linux kernel, the following vulnerability has been resolved: power: supply: isp1704charger: cancel work on remove The USB notifier and initial VBUS detection can schedule isp-work. The remove path unregisters the notifier and power supply, but does not wait for queued or running work befor...

SUSE CVE-2026-90431

In the Linux kernel, the following vulnerability has been resolved: remoteproc: Prevent crash handling to race with rprocdel There's no synchronization between rproccrashhandlerwork and rprocdel, as such it's possible for a driver to be removed while crash-handler work is scheduled, or even...

SUSE CVE-2026-91203

A flaw was found in cockpit-files. This vulnerability allows a local attacker to exploit a timing issue, known as a symlink race condition, during privileged file operations such as changing file ownership or permissions. By manipulating directory entries and winning this race, the attacker can...

SUSE CVE-2026-91205

A flaw was found in cockpit-files. A local unprivileged attacker can exploit a race condition during directory creation with owner assignment. By controlling a writable parent directory, the attacker can replace a newly created directory with a symbolic link symlink before the ownership change...

SUSE CVE-2026-93096

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Serialize multi-part Get/Set Feature transfers A Get or Set Feature payload larger than the mailbox payload size is split into several mailbox commands. mboxmutex only serializes individual mailbox commands and is...

SUSE CVE-2026-93138

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix vmlinux BTF prep race in bpfgetbtfvmlinux bpfgetbtfvmlinux lazily parses the vmlinux BTF under the bpfverifierlock, but publishes the result through a plain store and re-checks it through a plain lockless load. Nothing...

SUSE CVE-2026-93169

In the Linux kernel, the following vulnerability has been resolved: dmaengine: zynqmpdma: fix race between runtime PM and device removal In zynqmpdmaremove, runtime PM was disabled only after checking state and doing a manual suspend. This can race with runtime PM in the remove/unbind rmmod path...

SUSE CVE-2026-93170

In the Linux kernel, the following vulnerability has been resolved: dmaengine: xilinxdma: Fix channel idle state management in AXIDMA and MCDMA interrupt handlers Fix a race condition in AXIDMA and MCDMA irq handlers where the channel could be incorrectly marked as idle and attempt spurious...

DEBIAN-CVE-2026-86805

A time-of-check to time-of-use TOCTOU race condition in the dynamic loader ld.so of the GNU C Library glibc versions 2.14 through 2.44 allows a local attacker to escalate privileges. When expanding $ORIGIN in DTRPATH for setuid/setgid ATSECURE programs, glibc validates the lexically normalized...

UBUNTU-CVE-2026-86805

A time-of-check to time-of-use TOCTOU race condition in the dynamic loader ld.so of the GNU C Library glibc versions 2.14 through 2.44 allows a local attacker to escalate privileges. When expanding $ORIGIN in DTRPATH for setuid/setgid ATSECURE programs, glibc validates the lexically normalized...

CVE-2026-86805

A time-of-check to time-of-use TOCTOU race condition in the dynamic loader ld.so of the GNU C Library glibc versions 2.14 through 2.44 allows a local attacker to escalate privileges. When expanding $ORIGIN in DTRPATH for setuid/setgid ATSECURE programs, glibc validates the lexically normalized...

OPENSUSE-SU-2026:21910-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues: The following security issues were fixed: - CVE-2025-68214: timers: Fix NULL function pointer race in timershutdownsync bsc1255225. - CVE-2025-68358: btrfs: fix racy bitfield write in btrfsclearspaceinfofull...

SUSE-SU-2026:23887-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues: The following security issues were fixed: - CVE-2025-68214: timers: Fix NULL function pointer race in timershutdownsync bsc1255225. - CVE-2025-68358: btrfs: fix racy bitfield write in btrfsclearspaceinfofull...

SUSE-SU-2026:23902-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues: The following security issues were fixed: - CVE-2025-68214: timers: Fix NULL function pointer race in timershutdownsync bsc1255225. - CVE-2025-68358: btrfs: fix racy bitfield write in btrfsclearspaceinfofull...