Unrated severityNVD Advisory· Published Dec 9, 2025· Updated Apr 15, 2026
CVE-2023-53817
CVE-2023-53817
Description
In the Linux kernel, the following vulnerability has been resolved:
crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui()
During NVMeTCP Authentication a controller can trigger a kernel oops by specifying the 8192 bit Diffie Hellman group and passing a correctly sized, but zeroed Diffie Hellamn value. mpi_cmp_ui() was detecting this if the second parameter was 0, but 1 is passed from dh_is_pubkey_valid(). This causes the null pointer u->d to be dereferenced towards the end of mpi_cmp_ui()
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
71- osv-coords69 versionspkg:linux/kernelpkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.6pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_21&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-livepatch-SLE15-SP7-RT_Update_10&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-livepatch-SLE15-SP7_Update_10&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_78&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
>= 3.7.0, < 4.14.326+ 68 more
- (no CPE)range: >= 3.7.0, < 4.14.326
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1.150600.12.42.2
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-150700.53.34.1.150700.17.23.1
- (no CPE)range: < 6.4.0-150600.23.92.1.150600.12.42.2
- (no CPE)range: < 6.4.0-150600.23.92.1.150600.12.42.2
- (no CPE)range: < 6.4.0-40.1.21.17
- (no CPE)range: < 6.4.0-40.1.21.17
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 4.12.14-122.296.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 4.12.14-122.296.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 4.12.14-122.296.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 1-150600.13.5.1
- (no CPE)range: < 1-150700.1.3.1
- (no CPE)range: < 1-150700.15.3.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-150700.7.34.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 4.12.14-122.296.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 4.12.14-122.296.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-150700.7.34.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 4.12.14-122.296.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 4.12.14-122.296.1
- (no CPE)range: < 6.4.0-150700.7.34.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 1-8.3.1
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/0fc7147c694394f8a8cbc19570c6bc918cac0906nvd
- git.kernel.org/stable/c/12ac013ad7ff0df066451e825801d805095b3776nvd
- git.kernel.org/stable/c/61f5453e9706e99713825594e0c8f9031485fb5fnvd
- git.kernel.org/stable/c/67589d247909043e94d2dd5fb590958e0f99d58dnvd
- git.kernel.org/stable/c/9e47a758b70167c9301d2b44d2569f86c7796f2dnvd
- git.kernel.org/stable/c/ae63e84ffda74267bf7277c38415ba38389229a0nvd
- git.kernel.org/stable/c/d3ad023a39f1127dcfd331c562673355dc078650nvd
- git.kernel.org/stable/c/fde791e8a96a64ea7b0ad2440e43586447a209c6nvd
News mentions
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