Medium severity5.5NVD Advisory· Published Apr 4, 2018· Updated Jun 17, 2026

CVE-2017-18257

Description

The __get_data_block function in fs/f2fs/data.c in the Linux kernel before 4.11 allows local users to cause a denial of service (integer overflow and loop) via crafted use of the open and fallocate system calls with an FS_IOC_FIEMAP ioctl.

AI Insight

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

Affected products

Linux/Kernelllm-create
Range: <4.11
osv-coords38 versions
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%20SP3 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%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%20OpenStack%20Cloud%207 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3 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&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%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%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&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%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%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/kgraft-patch-SLE12-SP2_Update_21&distro=SUSE%20Enterprise%20Storage%204 pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_21&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_21&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_21&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_21&distro=SUSE%20OpenStack%20Cloud%207 pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_11&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3
< 4.4.121-92.73.1+ 37 more
- (no CPE)range: < 4.4.121-92.73.1
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.121-92.73.1
- (no CPE)range: < 4.4.121-92.73.1
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.121-92.73.1
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.121-92.73.1
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.128-3.11.1
- (no CPE)range: < 4.4.128-3.11.1
- (no CPE)range: < 4.4.121-92.73.1
- (no CPE)range: < 4.4.126-94.22.2
- (no CPE)range: < 4.4.121-92.73.1
- (no CPE)range: < 4.4.121-92.73.1
- (no CPE)range: < 4.4.126-94.22.2
- (no CPE)range: < 4.4.121-92.73.1
- (no CPE)range: < 4.4.126-94.22.2
- (no CPE)range: < 4.4.121-92.73.1
- (no CPE)range: < 4.4.128-3.11.1
- (no CPE)range: < 4.4.121-92.73.1
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.121-92.73.1
- (no CPE)range: < 4.4.121-92.73.1
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.121-92.73.1
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.121-92.73.1
- (no CPE)range: < 4.4.128-3.11.1
- (no CPE)range: < 1-3.3.1
- (no CPE)range: < 1-3.3.1
- (no CPE)range: < 1-3.3.1
- (no CPE)range: < 1-3.3.1
- (no CPE)range: < 1-3.3.1
- (no CPE)range: < 1-4.5.1

Patches

Vulnerability mechanics

References

git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdPatch
github.com/torvalds/linux/commit/b86e33075ed1909d8002745b56ecf73b833db143nvdPatch
www.debian.org/security/2018/dsa-4188nvdThird Party Advisory
usn.ubuntu.com/3696-1/nvd
usn.ubuntu.com/3696-2/nvd

News mentions

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