High severity7.0NVD Advisory· Published Sep 3, 2021· Updated Aug 13, 2026

CVE-2021-40490

Description

A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13.

AI Insight

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

Affected products

234

Linux/Linux kerneldescription
osv-coords213 versions
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pkg:rpm/suse/kernel-source&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP4 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3 pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.3 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/kernel-vanilla&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/kernel-syms&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP4 pkg:rpm/suse/kgraft-patch-SLE12-SP4_Update_23&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP4 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.2 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.2 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.2 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.2 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.2 pkg:rpm/opensuse/kmod&distro=openSUSE%20Leap%2015.2 pkg:rpm/opensuse/kmod-testsuite&distro=openSUSE%20Leap%2015.2 pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-preempt&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-vanilla&distro=openSUSE%20Leap%2015.3
< 5.3.18-24.86.2+ 212 more
- (no CPE)range: < 5.3.18-24.86.2
- (no CPE)range: < 5.3.18-24.86.2
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 5.3.18-18.69.1
- (no CPE)range: < 5.3.18-18.69.1
- (no CPE)range: < 5.3.18-38.25.2
- (no CPE)range: < 5.3.18-38.25.2
- (no CPE)range: < 5.3.18-38.25.1
- (no CPE)range: < 5.3.18-54.1
- (no CPE)range: < 1-8.3.2
- (no CPE)range: < 4.12.14-122.91.2
- (no CPE)range: < 4.12.14-122.91.2
- (no CPE)range: < 4.12.14-122.91.2
- (no CPE)range: < 4.12.14-122.91.2
- (no CPE)range: < 4.12.14-122.91.2
- (no CPE)range: < 4.12.14-122.91.2
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1.18.15.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 1-7.3.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 4.12.14-10.60.1
- (no CPE)range: < 4.12.14-16.76.2
- (no CPE)range: < 4.12.14-16.76.2
- (no CPE)range: < 4.12.14-16.76.2
- (no CPE)range: < 4.12.14-16.76.2
- (no CPE)range: < 4.12.14-16.76.2
- (no CPE)range: < 5.3.18-57.1
- (no CPE)range: < 5.3.18-57.1
- (no CPE)range: < 5.3.18-57.1
- (no CPE)range: < 5.3.18-57.1
- (no CPE)range: < 5.3.18-24.86.2
- (no CPE)range: < 0.931-3.5.1
- (no CPE)range: < 5.3.18-24.86.2
- (no CPE)range: < 5.3.18-24.86.2
- (no CPE)range: < 5.3.18-24.86.2
- (no CPE)range: < 5.3.18-24.86.2
- (no CPE)range: < 1-5.3.2
- (no CPE)range: < 5.3.18-24.86.2
- (no CPE)range: < 5.3.18-24.86.2
- (no CPE)range: < 5.3.18-24.86.2.9.40.2
- (no CPE)range: < 25-6.10.1
- (no CPE)range: < 0.931-3.5.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-24.86.2
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 1-3.3.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 1-1.3.1
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 5.3.18-57.1
- (no CPE)range: < 4.12.14-10.60.1
- (no CPE)range: < 4.12.14-122.91.2
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1.18.15.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 5.3.18-54.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 4.12.14-10.60.1
- (no CPE)range: < 4.12.14-16.76.2
- (no CPE)range: < 5.3.18-24.86.1
- (no CPE)range: < 5.3.18-24.86.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.1
- (no CPE)range: < 5.3.18-54.1
- (no CPE)range: < 5.3.18-24.86.2.9.40.2
- (no CPE)range: < 0.931-3.5.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 25-6.10.1
- (no CPE)range: < 5.3.18-18.69.1
- (no CPE)range: < 5.3.18-54.1
- (no CPE)range: < 5.3.18-54.1
- (no CPE)range: < 4.12.14-122.91.2
- (no CPE)range: < 4.12.14-122.91.2
- (no CPE)range: < 4.12.14-122.91.2
- (no CPE)range: < 4.12.14-122.91.2
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 4.12.14-10.60.1
- (no CPE)range: < 25-6.10.1
- (no CPE)range: < 5.3.18-24.86.2
- (no CPE)range: < 5.3.18-24.86.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 5.3.18-lp152.95.1
- (no CPE)range: < 5.3.18-lp152.95.1
- (no CPE)range: < 5.3.18-lp152.95.1
- (no CPE)range: < 5.3.18-lp152.95.1
- (no CPE)range: < 5.3.18-lp152.95.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-38.25.2
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1.18.15.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.4.121-92.161.1
- (no CPE)range: < 4.4.121-92.161.1
- (no CPE)range: < 4.4.121-92.161.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 1-6.3.1
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 5.3.18-lp152.95.1.lp152.8.44.1
- (no CPE)range: < 5.3.18-lp152.95.1
- (no CPE)range: < 5.3.18-lp152.95.1
- (no CPE)range: < 5.3.18-lp152.95.1
- (no CPE)range: < 5.3.18-lp152.95.1
- (no CPE)range: < 25-lp152.8.3.1
- (no CPE)range: < 25-lp152.8.3.2
- (no CPE)range: < 5.3.18-38.25.2
- (no CPE)range: < 5.3.18-38.25.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 5.3.18-59.27.1
- (no CPE)range: < 4.12.14-197.102.2
Linux/Kernelllm-fuzzy2 versions
<=5.13.13+ 1 more
- (no CPE)range: <=5.13.13
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=3.8,<4.4.284
NetApp/Solidfire Baseboard Management Controller
cpe:2.3:a:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:*
Fedoraproject/Fedora2 versions
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Debian/linux2 versions
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
NetApp/Aff A250 Firmware
cpe:2.3:o:netapp:aff_a250_firmware:-:*:*:*:*:*:*:*
NetApp/H300s Firmware
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
NetApp/H500s Firmware
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
NetApp/H700s Firmware
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
NetApp/H300e Firmware
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
NetApp/H500e Firmware
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
NetApp/H700e Firmware
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
NetApp/H410s Firmware
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
NetApp/H410c Firmware
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
NetApp/H610c Firmware
cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:*
NetApp/H610s Firmware
cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:*
NetApp/H615c Firmware
cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:*
NetApp/Fas500f Firmware
cpe:2.3:o:netapp:fas_500f_firmware:-:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/nvdPatchVendor Advisory
lists.debian.org/debian-lts-announce/2021/10/msg00010.htmlnvdMailing ListThird Party Advisory
lists.debian.org/debian-lts-announce/2021/12/msg00012.htmlnvdMailing ListThird Party Advisory
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6VS2DLGT7TK7URKAS2KWJL3S533SGVA/nvdThird Party Advisory
security.netapp.com/advisory/ntap-20211004-0001/nvdThird Party Advisory
www.debian.org/security/2021/dsa-4978nvdMailing ListThird Party Advisory
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XJGX3DMJT6MRBW2XEF3TWVHYWZW3DG3N/nvdBroken Link

News mentions

No linked articles in our index yet.

cvss	0.455
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000