CVE-2026-43224 io_uring/zcrx: fix sgtable leak on mapping failures

In the Linux kernel, the following vulnerability has been resolved: iouring/zcrx: fix sgtable leak on mapping failures In an unlikely case when iopopulateareadma fails, which could only happen on a PAGEPOOL32BITARCHWITH64BITDMA machine, iozcrxmaparea will have an initialised and not freed table. ...

CVE-2026-43121 io_uring/zcrx: fix user_ref race between scrub and refill paths

In the Linux kernel, the following vulnerability has been resolved: iouring/zcrx: fix userref race between scrub and refill paths The iozcrxputniovuref function uses a non-atomic check-then-decrement pattern atomicread followed by separate atomicdec to manipulate userrefs. This is serialized...

PT-2026-37514

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the io uring/zcrx component where closing a queue does not guarantee the immediate termination of all associated page pools. The system incorrectly releases the zcrx...

PT-2026-37461

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the io uring/zcrx component on SMP systems between the scrub and refill paths. The io zcrx put niov uref function employs a non-atomic check-then-decrement...

Exploit for Incorrect Resource Transfer Between Spheres in Linux Linux_Kernel

CVE-2026-31431: Detection & Defense Against iouring Bypass of...

CVE-2026-31774

The CVE-2026-31774 issue affects the Linux kernel io_uring/net path. A 32-bit length value (sqe->len) is stored into sr->len (int), allowing values above INT_MAX (e.g., 0xFFFFFFFF) to overflow and propagate through the bundle recv/send path. This can cause a slab-out-of-bounds read in io_bu...

PT-2026-36423

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the io uring subsystem where the validate fixed range function allows a buffer address at the exact end of a registered region when the length is zero. This occurs...

PT-2026-36409

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the io uring network component where a slab-out-of-bounds read can occur in the io bundle nbufs function. This happens when userspace provides a sqe-len value exceedin...

Important: kernel6.18

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: nvme: fix memory allocation in nvmeprreadkeys CVE-2026-23244 In the Linux kernel, the following vulnerability has been resolved: net/sched: actgate: snapshot parameters with RCU on replace CVE-2026-23245 In the...

Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1596)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1596 advisory. In the Linux kernel, the following vulnerability has been resolved: nvme: fix memory allocation in nvmeprreadkeys CVE-2026-23244 In the Linux kernel, the following vulnerability has been...

The vulnerability of the io_uring component in Linux operating system kernels allows a hacker to gain unauthorized access to protected information.

The vulnerability of the iouring component in Linux operating system kernels is related to the lack of memory release after the effective lifespan of the component. Exploiting this vulnerability can allow an attacker to gain unauthorized access to protected information...

CVE-2026-31484

A flaw was found in the Linux kernel. A local user could potentially exploit an out-of-bounds read vulnerability in the iouring/fdinfo component, specifically within the iouringshowfdinfo function. This issue arises from an incorrect wrap check when processing 128-byte Submission Queue Entries SQ...

USN-8183-1 linux-gcp, linux-gcp-6.17 vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

USN-8177-1 linux, linux-realtime vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

Unbreakable Enterprise kernel security update

6.12.0-201.74.2.1 - Revert 'rds: Drop rds conn in connect worker if not in down state.' Vijayendra Suman Orabug: 39200413 - iouring/kbuf: check if target buffer list is still legacy on recycle Jens Axboe Orabug: 39202438 - ipv6: use RCU in ip6xmit Eric Dumazet Orabug: 39202432 CVE-2025-40135 - ds...

CLSA-2026-1775655705 kernel-uek: Fix of 34 CVEs

ALSA: usb-audio: Fix use-after-free in sndusbmixerfree CVE-2026-23089 - HID: core: Harden s32ton against conversion to 0 bits CVE-2025-38556 - KVM: nSVM: Ignore nCR34:0 when loading PDPTEs from memory CVE-2024-50115 - KVM: x86: Reset IRTE to host control if new route isn't postable CVE-2025-37885...

Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1514)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1514 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix reservation leak in some error paths when inserting inline extent CVE-2025-71268 In the Linux kernel, the followi...

Important: kernel6.18

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: btrfs: fix reservation leak in some error paths when inserting inline extent CVE-2025-71268 In the Linux kernel, the following vulnerability has been resolved: btrfs: do not free data reservation in fallback from...

SUSE CVE-2026-33150

libfuse is the reference implementation of the Linux FUSE. From version 3.18.0 to before version 3.18.2, a use-after-free vulnerability in the iouring subsystem of libfuse allows a local attacker to crash FUSE filesystem processes and potentially execute arbitrary code. When iouring thread creati...

Use After Free

Overview Affected versions of this package are vulnerable to Use After Free in the fuseuringstart process when iouring thread creation fails due to resource exhaustion, such as cgroup pids.max limits. An attacker can cause process crashes and potentially execute arbitrary code by triggering...