Unrated severityNVD Advisory· Published Oct 30, 2025· Updated Apr 15, 2026
CVE-2025-40099
CVE-2025-40099
Description
In the Linux kernel, the following vulnerability has been resolved:
cifs: parse_dfs_referrals: prevent oob on malformed input
Malicious SMB server can send invalid reply to FSCTL_DFS_GET_REFERRALS
- reply smaller than sizeof(struct get_dfs_referral_rsp) - reply with number of referrals smaller than NumberOfReferrals in the header
Processing of such replies will cause oob.
Return -EINVAL error on such replies to prevent oob-s.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
110- osv-coords109 versionspkg:linux/kernelpkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-source-longterm&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2016.0pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_21&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-livepatch-SLE15-SP7-RT_Update_10&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-livepatch-SLE15-SP7_Update_10&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-obs-qa&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-obs-qa&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_78&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
>= 4.11.0, < 6.1.158+ 108 more
- (no CPE)range: >= 4.11.0, < 6.1.158
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1.150600.12.42.2
- (no CPE)range: < 6.12.0-160000.27.1.160000.2.8
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.17.7-1.1
- (no CPE)range: < 6.18.16-1.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150700.53.34.1.150700.17.23.1
- (no CPE)range: < 6.4.0-150600.23.92.1.150600.12.42.2
- (no CPE)range: < 6.12.0-160000.27.1.160000.2.8
- (no CPE)range: < 6.4.0-150600.23.92.1.150600.12.42.2
- (no CPE)range: < 6.12.0-160000.27.1.160000.2.8
- (no CPE)range: < 6.4.0-40.1.21.17
- (no CPE)range: < 6.4.0-40.1.21.17
- (no CPE)range: < 6.12.0-160000.27.1.160000.2.8
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 4.12.14-122.296.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 4.12.14-122.296.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 4.12.14-122.296.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 1-150600.13.5.1
- (no CPE)range: < 1-150700.1.3.1
- (no CPE)range: < 1-150700.15.3.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150700.7.34.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 4.12.14-122.296.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 4.12.14-122.296.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-40.1
- (no CPE)range: < 6.4.0-150700.7.34.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 4.12.14-122.296.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 4.12.14-122.296.1
- (no CPE)range: < 6.4.0-150700.7.34.1
- (no CPE)range: < 6.4.0-150700.53.34.1
- (no CPE)range: < 6.4.0-150600.23.92.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 6.12.0-160000.27.1
- (no CPE)range: < 1-8.3.1
Patches
Vulnerability mechanics
References
5- git.kernel.org/stable/c/15c73964da9df994302f579ed14ee5fdbce7a332nvd
- git.kernel.org/stable/c/6447b0e355562a1ff748c4a2ffb89aae7e84d2c9nvd
- git.kernel.org/stable/c/8bc4a8d39bac23d8b044fd3e2dbfd965f1d9b058nvd
- git.kernel.org/stable/c/bb0f2e66e1ac043a5b238f5bcab4f26f3c317039nvd
- git.kernel.org/stable/c/cfacc7441f760e4a73cc71b6ff1635261d534657nvd
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