Unrated severityNVD Advisory· Published Oct 28, 2025· Updated Apr 15, 2026

CVE-2025-40047

Description

In the Linux kernel, the following vulnerability has been resolved:

io_uring/waitid: always prune wait queue entry in io_waitid_wait()

For a successful return, always remove our entry from the wait queue entry list. Previously this was skipped if a cancelation was in progress, but this can race with another invocation of the wait queue entry callback.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

137

Linux/io_uringllm-create
Linux/Kernelllm-fuzzy
osv-coords135 versions
pkg:linux/kernel pkg:rpm/almalinux/kernel pkg:rpm/almalinux/kernel-64k pkg:rpm/almalinux/kernel-64k-core pkg:rpm/almalinux/kernel-64k-debug pkg:rpm/almalinux/kernel-64k-debug-core pkg:rpm/almalinux/kernel-64k-debug-devel pkg:rpm/almalinux/kernel-64k-debug-devel-matched pkg:rpm/almalinux/kernel-64k-debug-modules pkg:rpm/almalinux/kernel-64k-debug-modules-core pkg:rpm/almalinux/kernel-64k-debug-modules-extra pkg:rpm/almalinux/kernel-64k-devel pkg:rpm/almalinux/kernel-64k-devel-matched pkg:rpm/almalinux/kernel-64k-modules pkg:rpm/almalinux/kernel-64k-modules-core pkg:rpm/almalinux/kernel-64k-modules-extra pkg:rpm/almalinux/kernel-abi-stablelists pkg:rpm/almalinux/kernel-core pkg:rpm/almalinux/kernel-cross-headers pkg:rpm/almalinux/kernel-debug pkg:rpm/almalinux/kernel-debug-core pkg:rpm/almalinux/kernel-debug-devel pkg:rpm/almalinux/kernel-debug-devel-matched pkg:rpm/almalinux/kernel-debug-modules pkg:rpm/almalinux/kernel-debug-modules-core pkg:rpm/almalinux/kernel-debug-modules-extra pkg:rpm/almalinux/kernel-debug-uki-virt pkg:rpm/almalinux/kernel-devel pkg:rpm/almalinux/kernel-devel-matched pkg:rpm/almalinux/kernel-doc pkg:rpm/almalinux/kernel-headers pkg:rpm/almalinux/kernel-modules pkg:rpm/almalinux/kernel-modules-core pkg:rpm/almalinux/kernel-modules-extra pkg:rpm/almalinux/kernel-modules-extra-matched pkg:rpm/almalinux/kernel-rt pkg:rpm/almalinux/kernel-rt-64k pkg:rpm/almalinux/kernel-rt-64k-core pkg:rpm/almalinux/kernel-rt-64k-debug pkg:rpm/almalinux/kernel-rt-64k-debug-core pkg:rpm/almalinux/kernel-rt-64k-debug-devel pkg:rpm/almalinux/kernel-rt-64k-debug-modules pkg:rpm/almalinux/kernel-rt-64k-debug-modules-core pkg:rpm/almalinux/kernel-rt-64k-debug-modules-extra pkg:rpm/almalinux/kernel-rt-64k-devel pkg:rpm/almalinux/kernel-rt-64k-modules pkg:rpm/almalinux/kernel-rt-64k-modules-core pkg:rpm/almalinux/kernel-rt-64k-modules-extra pkg:rpm/almalinux/kernel-rt-core pkg:rpm/almalinux/kernel-rt-debug pkg:rpm/almalinux/kernel-rt-debug-core pkg:rpm/almalinux/kernel-rt-debug-devel pkg:rpm/almalinux/kernel-rt-debug-modules pkg:rpm/almalinux/kernel-rt-debug-modules-core pkg:rpm/almalinux/kernel-rt-debug-modules-extra pkg:rpm/almalinux/kernel-rt-devel pkg:rpm/almalinux/kernel-rt-modules pkg:rpm/almalinux/kernel-rt-modules-core pkg:rpm/almalinux/kernel-rt-modules-extra pkg:rpm/almalinux/kernel-tools pkg:rpm/almalinux/kernel-tools-libs pkg:rpm/almalinux/kernel-tools-libs-devel pkg:rpm/almalinux/kernel-uki-virt pkg:rpm/almalinux/kernel-uki-virt-addons pkg:rpm/almalinux/kernel-zfcpdump pkg:rpm/almalinux/kernel-zfcpdump-core pkg:rpm/almalinux/kernel-zfcpdump-devel pkg:rpm/almalinux/kernel-zfcpdump-devel-matched pkg:rpm/almalinux/kernel-zfcpdump-modules pkg:rpm/almalinux/kernel-zfcpdump-modules-core pkg:rpm/almalinux/kernel-zfcpdump-modules-extra pkg:rpm/almalinux/libperf pkg:rpm/almalinux/perf pkg:rpm/almalinux/python3-perf pkg:rpm/almalinux/rtla pkg:rpm/almalinux/rv pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/kernel-source-longterm&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2016.0 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Micro%206.2 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP7 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2016.0 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP7 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP7 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.2 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kernel-livepatch-SLE15-SP7-RT_Update_7&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7 pkg:rpm/suse/kernel-livepatch-SLE15-SP7_Update_7&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7 pkg:rpm/suse/kernel-obs-qa&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/kernel-obs-qa&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.2 pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.2 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0
>= 6.7.0, < 6.12.53+ 134 more
- (no CPE)range: >= 6.7.0, < 6.12.53
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-124.20.1.el10_1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1.160000.2.5
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.17.7-1.1
- (no CPE)range: < 6.18.16-1.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.4.0-150700.53.25.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.4.0-150700.20.21.1
- (no CPE)range: < 6.4.0-150700.53.25.1.150700.17.17.1
- (no CPE)range: < 6.12.0-160000.8.1.160000.2.5
- (no CPE)range: < 6.12.0-160000.8.1.160000.2.5
- (no CPE)range: < 6.12.0-160000.8.1.160000.2.5
- (no CPE)range: < 6.4.0-150700.53.25.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.4.0-150700.53.25.1
- (no CPE)range: < 6.4.0-150700.53.25.1
- (no CPE)range: < 6.4.0-150700.53.25.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.4.0-150700.53.25.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.4.0-150700.53.25.2
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 1-150700.1.3.1
- (no CPE)range: < 1-150700.15.3.1
- (no CPE)range: < 6.4.0-150700.53.25.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.4.0-150700.7.25.1
- (no CPE)range: < 6.4.0-150700.20.21.1
- (no CPE)range: < 6.4.0-150700.53.25.1
- (no CPE)range: < 6.4.0-150700.53.25.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.4.0-150700.7.25.1
- (no CPE)range: < 6.4.0-150700.20.21.1
- (no CPE)range: < 6.4.0-150700.53.25.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.4.0-150700.7.25.1
- (no CPE)range: < 6.4.0-150700.53.25.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1

cvss	0.000
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000

CVE-2025-40047

Description

AI Insight

Affected products

Patches

Vulnerability mechanics

References

News mentions