Medium severity4.7NVD Advisory· Published Mar 12, 2018· Updated Jun 17, 2026

CVE-2017-18224

Description

In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.

AI Insight

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

Affected products

Linux/Kernelllm-fuzzy
Range: <4.15
osv-coords36 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%20SP4 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP4 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%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015 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%20SP4 pkg:rpm/suse/kernel-livepatch-SLE15_Update_7&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%20SP4 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%20SP4 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4 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%20SP4 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 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%20SP4 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4 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%20SP4 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/kernel-vanilla&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015 pkg:rpm/suse/kgraft-patch-SLE12-SP4_Update_1&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP4
< 4.12.14-5.16.1+ 35 more
- (no CPE)range: < 4.12.14-5.16.1
- (no CPE)range: < 4.12.14-6.3.1
- (no CPE)range: < 4.12.14-6.3.1
- (no CPE)range: < 4.12.14-95.3.1
- (no CPE)range: < 4.12.14-95.3.1
- (no CPE)range: < 4.12.14-25.25.1
- (no CPE)range: < 4.12.14-25.25.1
- (no CPE)range: < 4.12.14-25.25.1
- (no CPE)range: < 4.12.14-25.25.1
- (no CPE)range: < 4.12.14-95.3.1
- (no CPE)range: < 4.12.14-95.3.1
- (no CPE)range: < 4.12.14-95.3.1
- (no CPE)range: < 4.12.14-25.25.1
- (no CPE)range: < 4.12.14-25.25.1
- (no CPE)range: < 4.12.14-95.3.1
- (no CPE)range: < 1-1.3.1
- (no CPE)range: < 4.12.14-25.25.1
- (no CPE)range: < 4.12.14-95.3.2
- (no CPE)range: < 4.12.14-5.16.1
- (no CPE)range: < 4.12.14-6.3.1
- (no CPE)range: < 4.12.14-6.3.1
- (no CPE)range: < 4.12.14-95.3.1
- (no CPE)range: < 4.12.14-25.25.1
- (no CPE)range: < 4.12.14-25.25.1
- (no CPE)range: < 4.12.14-95.3.1
- (no CPE)range: < 4.12.14-95.3.1
- (no CPE)range: < 4.12.14-5.16.1
- (no CPE)range: < 4.12.14-6.3.1
- (no CPE)range: < 4.12.14-6.3.1
- (no CPE)range: < 4.12.14-95.3.1
- (no CPE)range: < 4.12.14-25.25.1
- (no CPE)range: < 4.12.14-95.3.1
- (no CPE)range: < 4.12.14-95.3.1
- (no CPE)range: < 4.12.14-25.25.1
- (no CPE)range: < 4.12.14-25.25.1
- (no CPE)range: < 1-7.1

Patches

Vulnerability mechanics

References

git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdPatchVendor Advisory
github.com/torvalds/linux/commit/3e4c56d41eef5595035872a2ec5a483f42e8917fnvdPatchThird Party Advisory
www.securityfocus.com/bid/103353nvdThird Party AdvisoryVDB Entry
www.debian.org/security/2018/dsa-4188nvd

News mentions

No linked articles in our index yet.

cvss	0.306
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000