Medium severity5.5NVD Advisory· Published Feb 27, 2024· Updated Jun 17, 2026

CVE-2021-46923

Description

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

fs/mount_setattr: always cleanup mount_kattr

Make sure that finish_mount_kattr() is called after mount_kattr was succesfully built in both the success and failure case to prevent leaking any references we took when we built it. We returned early if path lookup failed thereby risking to leak an additional reference we took when building mount_kattr when an idmapped mount was requested.

AI Insight

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

Affected products

103

Linux/Kernelllm-fuzzy3 versions
(expand)+ 2 more
- (no CPE)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=5.12.0,<5.15.13
- (no CPE)range: 5.12
osv-coords100 versions
pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4 pkg:rpm/suse/kernel-syms&distro=SUSE%20Manager%20Proxy%204.3 pkg:rpm/suse/kernel-default&distro=SUSE%20Manager%20Server%204.3 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Manager%20Server%204.3 pkg:rpm/suse/kernel-source&distro=SUSE%20Manager%20Server%204.3 pkg:rpm/suse/kernel-syms&distro=SUSE%20Manager%20Server%204.3 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Manager%20Server%204.3 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%20Micro%205.3 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%20Micro%205.3 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.3 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.3 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.3 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5 pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP5 pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-livepatch-SLE15-SP4_Update_24&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP4 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%20Micro%205.4 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%20Micro%205.4 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP4 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4 pkg:rpm/suse/kernel-livepatch-SLE15-SP5-RT_Update_11&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-livepatch-SLE15-SP5_Update_11&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP5 pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Manager%20Proxy%204.3 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Manager%20Proxy%204.3 pkg:rpm/suse/kernel-source&distro=SUSE%20Manager%20Proxy%204.3 pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.3 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.4 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.4 pkg:rpm/suse/kernel-livepatch-SLE15-SP4-RT_Update_19&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP4 pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%20Micro%205.3 pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%20Micro%205.4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5
< 5.14.21-150500.55.52.1.150500.6.23.1+ 99 more
- (no CPE)range: < 5.14.21-150500.55.52.1.150500.6.23.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1.150500.6.23.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.2.150400.24.52.1
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.2.150400.24.52.1
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.2.150400.24.52.1
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.2.150400.24.52.1
- (no CPE)range: < 5.14.21-150500.33.37.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.2.150400.24.52.1
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150500.13.38.1
- (no CPE)range: < 5.14.21-150500.13.38.1
- (no CPE)range: < 5.14.21-150500.13.38.1
- (no CPE)range: < 5.14.21-150500.13.38.1
- (no CPE)range: < 5.14.21-150400.15.71.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.13.38.1
- (no CPE)range: < 5.14.21-150500.13.38.1
- (no CPE)range: < 5.14.21-150500.33.37.1
- (no CPE)range: < 5.14.21-150500.33.37.1
- (no CPE)range: < 5.14.21-150500.33.37.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1.150500.6.23.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 1-150400.9.3.1
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.2.150400.24.52.1
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.2.150400.24.52.1
- (no CPE)range: < 5.14.21-150400.24.111.2.150400.24.52.1
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 1-150500.11.3.1
- (no CPE)range: < 5.14.21-150500.33.37.1
- (no CPE)range: < 5.14.21-150500.33.37.1
- (no CPE)range: < 1-150500.11.3.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150500.55.52.1
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150400.24.111.2.150400.24.52.1
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150400.24.111.2
- (no CPE)range: < 5.14.21-150400.24.111.2.150400.24.52.1
- (no CPE)range: < 5.14.21-150400.24.111.1
- (no CPE)range: < 5.14.21-150500.13.38.1
- (no CPE)range: < 5.14.21-150500.13.38.1
- (no CPE)range: < 5.14.21-150500.13.38.1
- (no CPE)range: < 5.14.21-150500.13.38.1
- (no CPE)range: < 5.14.21-150400.15.71.1
- (no CPE)range: < 5.14.21-150400.15.71.1
- (no CPE)range: < 5.14.21-150400.15.71.1
- (no CPE)range: < 1-150400.1.3.1
- (no CPE)range: < 5.14.21-150400.15.71.1
- (no CPE)range: < 5.14.21-150400.15.71.1
- (no CPE)range: < 5.14.21-150500.55.52.1

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

CVE-2021-46923

Description

AI Insight

Affected products

Patches

Vulnerability mechanics

References

News mentions