Medium severity5.5NVD Advisory· Published Sep 14, 2022· Updated Jun 17, 2026

CVE-2022-40476

Description

A null pointer dereference issue was discovered in fs/io_uring.c in the Linux kernel before 5.15.62. A local user could use this flaw to crash the system or potentially cause a denial of service.

AI Insight

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

Affected products

Linux/Kernel3 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: <5.15.62
- (no CPE)
- (no CPE)range: <5.15.62
osv-coords43 versions
pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.4 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP4 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.3 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP4 pkg:rpm/suse/kernel-livepatch-SLE15-SP4-RT_Update_1&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP4 pkg:rpm/suse/kernel-livepatch-SLE15-SP4_Update_5&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP4 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP4 pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP4 pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP4 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP4 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP4 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP4 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP4 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP4 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP4 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4
< 5.14.21-150400.24.33.1+ 42 more
- (no CPE)range: < 5.14.21-150400.24.33.1
- (no CPE)range: < 5.14.21-150400.24.33.2
- (no CPE)range: < 5.14.21-150400.14.21.2
- (no CPE)range: < 5.14.21-150400.24.33.2
- (no CPE)range: < 5.14.21-150400.24.33.2
- (no CPE)range: < 5.14.21-150400.24.33.2.150400.24.11.4
- (no CPE)range: < 5.14.21-150400.24.33.2
- (no CPE)range: < 5.14.21-150400.24.33.2
- (no CPE)range: < 5.14.21-150400.24.33.1
- (no CPE)range: < 5.14.21-150400.24.33.1
- (no CPE)range: < 5.14.21-150400.15.5.1
- (no CPE)range: < 5.14.21-150400.15.5.1
- (no CPE)range: < 5.14.21-150400.24.33.1
- (no CPE)range: < 5.14.21-150400.14.21.1
- (no CPE)range: < 5.14.21-150400.15.5.1
- (no CPE)range: < 5.14.21-150400.24.33.1
- (no CPE)range: < 5.14.21-150400.14.21.1
- (no CPE)range: < 5.14.21-150400.15.5.1
- (no CPE)range: < 5.14.21-150400.24.33.2
- (no CPE)range: < 5.14.21-150400.24.33.2
- (no CPE)range: < 5.14.21-150400.14.21.2
- (no CPE)range: < 5.14.21-150400.24.33.2
- (no CPE)range: < 5.14.21-150400.24.33.2
- (no CPE)range: < 5.14.21-150400.24.33.2
- (no CPE)range: < 5.14.21-150400.24.33.2
- (no CPE)range: < 5.14.21-150400.24.33.2
- (no CPE)range: < 5.14.21-150400.24.33.2
- (no CPE)range: < 5.14.21-150400.24.33.2.150400.24.11.4
- (no CPE)range: < 5.14.21-150400.24.33.2.150400.24.11.4
- (no CPE)range: < 5.14.21-150400.24.33.2
- (no CPE)range: < 1-150400.1.3.1
- (no CPE)range: < 1-150400.9.3.4
- (no CPE)range: < 5.14.21-150400.24.33.1
- (no CPE)range: < 5.14.21-150400.15.5.1
- (no CPE)range: < 5.14.21-150400.15.5.1
- (no CPE)range: < 5.14.21-150400.24.33.1
- (no CPE)range: < 5.14.21-150400.24.33.1
- (no CPE)range: < 5.14.21-150400.14.21.1
- (no CPE)range: < 5.14.21-150400.15.5.1
- (no CPE)range: < 5.14.21-150400.24.33.1
- (no CPE)range: < 5.14.21-150400.14.21.1
- (no CPE)range: < 5.14.21-150400.15.5.1
- (no CPE)range: < 5.14.21-150400.24.33.2

Patches

Vulnerability mechanics

References

git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/fs/io_uring.cnvdPatchVendor Advisory
mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.62nvdRelease NotesVendor Advisory
lore.kernel.org/lkml/CAO4S-mdVW5GkODk0+vbQexNAAJZopwzFJ9ACvRCJ989fQ4A6Ow%40mail.gmail.com/nvd

News mentions

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cvss	0.358
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000