Medium severity5.5NVD Advisory· Published Jul 3, 2018· Updated Jun 17, 2026

CVE-2018-13093

Description

An issue was discovered in fs/xfs/xfs_icache.c in the Linux kernel through 4.17.3. There is a NULL pointer dereference and panic in lookup_slow() on a NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs image. This occurs because of a lack of proper validation that cached inodes are free during allocation.

AI Insight

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

Affected products

Ubuntu/Linux Kernelllm-fuzzy
Range: <=4.17.3
osv-coords81 versions
pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015 pkg:rpm/suse/kernel-default&distro=SUSE%20OpenStack%20Cloud%207 pkg:rpm/suse/kernel-docs-azure&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3 pkg:rpm/suse/kernel-ec2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2012 pkg:rpm/suse/kernel-livepatch-SLE15_Update_5&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3 pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP3 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP3 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/kernel-source&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/kernel-source&distro=SUSE%20OpenStack%20Cloud%207 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP3 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/kernel-syms&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/kernel-syms&distro=SUSE%20OpenStack%20Cloud%207 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP3 pkg:rpm/suse/kernel-vanilla&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015 pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015 pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_31&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_25&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_25&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_25&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_25&distro=SUSE%20OpenStack%20Cloud%207 pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_17&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3 pkg:rpm/suse/kgraft-patch-SLE12_Update_38&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/lttng-modules&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/lttng-modules&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL pkg:rpm/suse/lttng-modules&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/lttng-modules&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/lttng-modules&distro=SUSE%20OpenStack%20Cloud%207
< 4.12.14-5.16.1+ 80 more
- (no CPE)range: < 4.12.14-5.16.1
- (no CPE)range: < 4.4.155-4.16.1
- (no CPE)range: < 4.4.155-4.16.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.155-94.50.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.155-94.50.1
- (no CPE)range: < 4.12.14-25.19.1
- (no CPE)range: < 4.12.14-25.19.1
- (no CPE)range: < 4.12.14-25.19.1
- (no CPE)range: < 4.12.14-25.19.1
- (no CPE)range: < 3.12.74-60.64.104.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.155-94.50.1
- (no CPE)range: < 3.12.61-52.146.1
- (no CPE)range: < 3.12.74-60.64.104.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.155-94.50.1
- (no CPE)range: < 4.4.155-94.50.1
- (no CPE)range: < 4.12.14-25.19.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.155-4.16.1
- (no CPE)range: < 4.12.14-25.19.1
- (no CPE)range: < 4.4.155-94.50.1
- (no CPE)range: < 3.12.74-60.64.104.1
- (no CPE)range: < 1-1.3.1
- (no CPE)range: < 4.12.14-25.19.1
- (no CPE)range: < 4.4.155-94.50.1
- (no CPE)range: < 4.4.155-3.23.1
- (no CPE)range: < 4.4.155-3.23.1
- (no CPE)range: < 4.12.14-5.16.1
- (no CPE)range: < 4.4.155-4.16.1
- (no CPE)range: < 4.4.155-4.16.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.155-94.50.1
- (no CPE)range: < 4.12.14-25.19.1
- (no CPE)range: < 4.12.14-25.19.1
- (no CPE)range: < 3.12.74-60.64.104.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.155-94.50.1
- (no CPE)range: < 3.12.61-52.146.1
- (no CPE)range: < 3.12.74-60.64.104.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.155-94.50.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.155-3.23.1
- (no CPE)range: < 4.12.14-5.16.1
- (no CPE)range: < 4.4.155-4.16.1
- (no CPE)range: < 4.4.155-4.16.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.155-94.50.1
- (no CPE)range: < 4.12.14-25.19.1
- (no CPE)range: < 3.12.74-60.64.104.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.155-94.50.1
- (no CPE)range: < 3.12.61-52.146.1
- (no CPE)range: < 3.12.74-60.64.104.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.155-94.50.1
- (no CPE)range: < 4.4.121-92.95.1
- (no CPE)range: < 4.4.155-3.23.1
- (no CPE)range: < 4.12.14-25.19.1
- (no CPE)range: < 3.12.74-60.64.104.1
- (no CPE)range: < 3.12.61-52.146.1
- (no CPE)range: < 3.12.74-60.64.104.1
- (no CPE)range: < 4.12.14-25.19.1
- (no CPE)range: < 1-2.5.1
- (no CPE)range: < 1-3.4.1
- (no CPE)range: < 1-3.4.1
- (no CPE)range: < 1-3.4.1
- (no CPE)range: < 1-3.4.1
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 1-1.5.1
- (no CPE)range: < 2.7.1-9.6.1
- (no CPE)range: < 2.7.1-9.6.1
- (no CPE)range: < 2.7.1-9.6.1
- (no CPE)range: < 2.7.1-9.6.1
- (no CPE)range: < 2.7.1-9.6.1

Patches

Vulnerability mechanics

References

git.kernel.org/pub/scm/fs/xfs/xfs-linux.git/commit/nvdPatchThird Party Advisory
github.com/torvalds/linux/commit/afca6c5b2595fc44383919fba740c194b0b76affnvdPatch
bugzilla.kernel.org/show_bug.cginvdIssue TrackingThird Party Advisory
access.redhat.com/errata/RHSA-2019:2029nvd
access.redhat.com/errata/RHSA-2019:2043nvd
lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlnvd
usn.ubuntu.com/4094-1/nvd
usn.ubuntu.com/4118-1/nvd

News mentions

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cvss	0.358
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000