CVE-2026-80810

A flaw was found in the Linux kernel. An integer overflow vulnerability in the iouring/rsrc component, specifically within the iovecfillbvec function, can lead to incorrect memory calculations when handling very large memory pages. This error causes the kernel to access memory outside of its...

Linux Distros Unpatched Vulnerability : CVE-2026-80810

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iouring/rsrc: fix folio size overflow in iovecfillbvec iovecfillbvec computes the folio size with a plain int 1: unsigned long foliosize = 1 folioshift;...

CVE-2026-80810 io_uring/rsrc: fix folio size overflow in io_vec_fill_bvec()

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: fix folio size overflow in iovecfillbvec iovecfillbvec computes the folio size with a plain int 1: unsigned long foliosize = 1 folioshift; imu-folioshift is unsigned int and comes from folioshift of the folio backin...

CVE-2026-80810 io_uring/rsrc: fix folio size overflow in io_vec_fill_bvec()

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: fix folio size overflow in iovecfillbvec iovecfillbvec computes the folio size with a plain int 1: unsigned long foliosize = 1 folioshift; imu-folioshift is unsigned int and comes from folioshift of the folio backin...

CVE-2026-80810

CVE-2026-80810 is an out-of-bounds write/read vulnerability in the Linux kernel's io_uring resource management subsystem. The root cause is an integer overflow in io_vec_fill_bvec(), which computes the folio size using a plain int 1 shifted by imu->folio_shift. When folio_shift is 32 or greate...

CVE-2025-40216

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: don't rely on user vaddr alignment There is no guaranteed alignment for user pointers, however the calculation of an offset of the first page into a folio after coalescing uses some weird bit mask logic, get rid of ...

CVE-2025-40216: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: don't rely on user vaddr alignment There is no guaranteed alignment for user pointers, however the calculation of an offset of the first page into a folio after coalescing uses some weird bit mask logic, get rid of ...

CVE-2025-38196 io_uring/rsrc: validate buffer count with offset for cloning

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: validate buffer count with offset for cloning syzbot reports that it can trigger a WARNON for kmalloc attempt that's too big: WARNING: CPU: 0 PID: 6488 at mm/slub.c:5024 kvmallocnodenoprof+0x520/0x640 mm/slub.c:5024...

CVE-2025-38196: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: validate buffer count with offset for cloning syzbot reports that it can trigger a WARNON for kmalloc attempt that's too big: WARNING: CPU: 0 PID: 6488 at mm/slub.c:5024 kvmallocnodenoprof+0x520/0x640 mm/slub.c:5024...

CVE-2024-40922

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: don't lock while !TASKRUNNING There is a report of iorsrcrefquiesce locking a mutex while not TASKRUNNING, which is due to forgetting restoring the state back after ioruntaskworksig and attempts to break out of the...

CVE-2024-40922

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: don't lock while !TASKRUNNING There is a report of iorsrcrefquiesce locking a mutex while not TASKRUNNING, which is due to forgetting restoring the state back after ioruntaskworksig and attempts to break out of the...

CVE-2024-40922

CVE-2024-40922 affects the Linux kernel io_uring rsrc path: a mutex lock could be held while a task is not TASK_RUNNING due to not restoring state after io_run_task_work_sig(), risking unintended blocking/deadlock in io_rsrc_ref_quiesce() and related calls (io_sqe_buffers_unregister, io_uring/reg...

CVE-2024-40922

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: don't lock while !TASKRUNNING There is a report of iorsrcrefquiesce locking a mutex while not TASKRUNNING, which is due to forgetting restoring the state back after ioruntaskworksig and attempts to break out of the...

PT-2024-9772

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The vulnerability is related to the io uring/rsrc component of the Linux kernel, where the function io rsrc ref quiesce locks a mutex while not in the TASK RUNNING state. This issue...