Linux Distros Unpatched Vulnerability : CVE-2026-92486

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Fix CFI mismatch in task work callback BPF subprograms use the bpfcallbackt ABI, but task work invokes the callback through a three-argument function...

DEBIAN-CVE-2026-92486

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix CFI mismatch in task work callback BPF subprograms use the bpfcallbackt ABI, but task work invokes the callback through a three-argument function pointer. This trips kCFI. Store and invoke the callback as bpfcallbackt...

CVE-2026-92486 bpf: Fix CFI mismatch in task work callback

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix CFI mismatch in task work callback BPF subprograms use the bpfcallbackt ABI, but task work invokes the callback through a three-argument function pointer. This trips kCFI. Store and invoke the callback as bpfcallbackt...

CVE-2026-92486

CVE-2026-92486 affects the Linux kernel BPF subsystem. The root cause is a kCFI (kernel Control Flow Integrity) mismatch : BPF subprograms use the bpf_callback_t ABI, but the task work mechanism invokes the callback through a three-argument function pointer, causing a CFI violation. The fix store...

EUVD-2026-82107

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix CFI mismatch in task work callback BPF subprograms use the bpfcallbackt ABI, but task work invokes the callback through a three-argument function pointer. This trips kCFI. Store and invoke the callback as bpfcallbackt...

CVE-2026-92486: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix CFI mismatch in task work callback BPF subprograms use the bpfcallbackt ABI, but task work invokes the callback through a three-argument function pointer. This trips kCFI. Store and invoke the callback as bpfcallbackt...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: perf: Fixed event leakage upon execution and file release The pending task work related to perf is never waited for when a matching event occurs. In the case of a child event released directly via freeevent, this can potential...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: iouring: Fixed a null-ptr-deref in iotctxexitcb. Syzkaller reports a NULL deref bug as follows: BUG: KASAN: null-ptr-deref in iotctxexitcb+0x53/0xd3 Read of size 4 at address 0000000000000138 by task file1/1955 CPU: 1 PID: 195...

CVE-2026-81010

A flaw was found in the Linux kernel's iouring/waitid component. The iowaitidcb function, when running from a kernel worker, fails to properly acknowledge task work cancellation. This oversight causes the dowait function to execute within an incorrect task context, which is critical as waitid...

PT-2026-90140

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the io uring/waitid component where the io waitid cb function fails to honor task work cancellation. When task work add cannot queue work to the originating task, the...

CVE-2026-64262 fuse-uring: end fuse_req on io-uring cancel task work

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: end fusereq on io-uring cancel task work When iouring delivers task work with tw.cancel set PFEXITING, PFKTHREAD fallback, or percpurefisdying on the ring context, fuseuringsendintask takes the cancel branch, assigns...

EUVD-2026-13611

In the Linux kernel, the following vulnerability has been resolved: iouring: ensure ctx-rings is stable for task work flags manipulation If DEFERTASKRUN | SETUPTASKRUN is used and task work is added while the ring is being resized, it's possible for the OR'ing of IORINGSQTASKRUN to happen in the...

CVE-2026-23275 io_uring: ensure ctx->rings is stable for task work flags manipulation

In the Linux kernel, the following vulnerability has been resolved: iouring: ensure ctx-rings is stable for task work flags manipulation If DEFERTASKRUN | SETUPTASKRUN is used and task work is added while the ring is being resized, it's possible for the OR'ing of IORINGSQTASKRUN to happen in the...

CVE-2026-23275 io_uring: ensure ctx->rings is stable for task work flags manipulation

In the Linux kernel, the following vulnerability has been resolved: iouring: ensure ctx-rings is stable for task work flags manipulation If DEFERTASKRUN | SETUPTASKRUN is used and task work is added while the ring is being resized, it's possible for the OR'ing of IORINGSQTASKRUN to happen in the...

CVE-2026-23275

CVE-2026-23275 (Linux kernel, io_uring): The issue arises when DEFER_TASKRUN | SETUP_TASKRUN are used and task work is added while the ring is resized, allowing an overlap window where IORING_SQ_TASKRUN could be OR’ed on the old/new rings during swapping. The fix adds a 2nd rings pointer, →rings_...

CVE-2026-23275

In the Linux kernel, the following vulnerability has been resolved: iouring: ensure ctx-rings is stable for task work flags manipulation If DEFERTASKRUN | SETUPTASKRUN is used and task work is added while the ring is being resized, it's possible for the OR'ing of IORINGSQTASKRUN to happen in the...

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 the instability of the ctx-rings pointer during the task work flag operation by iouring. This...

Linux Distros Unpatched Vulnerability : CVE-2026-23275

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iouring: ensure ctx-rings is stable for task work flags manipulation If DEFERTASKRUN | SETUPTASKRUN is used and task work is added while the ring is being...

PT-2026-26580

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue within the io uring subsystem. Specifically, a condition exists where, if DEFER TASKRUN and SETUP TASKRUN are utilized concurrently with ring resizing,...

kernel: io_uring: check if iowq is killed before queuing

In the Linux kernel, the following vulnerability has been resolved: iouring: check if iowq is killed before queuing task work can be executed after the task has gone through iouring termination, whether it's the final taskwork run or the fallback path. In this case, task work will find -iowq bein...