Unrated severityNVD Advisory· Published Oct 28, 2025· Updated Apr 15, 2026
CVE-2025-40031
CVE-2025-40031
Description
In the Linux kernel, the following vulnerability has been resolved:
tee: fix register_shm_helper()
In register_shm_helper(), fix incorrect error handling for a call to iov_iter_extract_pages(). A case is missing for when iov_iter_extract_pages() only got some pages and return a number larger than 0, but not the requested amount.
This fixes a possible NULL pointer dereference following a bad input from ioctl(TEE_IOC_SHM_REGISTER) where parts of the buffer isn't mapped.
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Affected products
40- osv-coords39 versionspkg:linux/kernelpkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2016.0pkg: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%2016.0pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-source-longterm&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2016.0pkg: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-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2016.0pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg: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-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%206.2pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0
>= 6.8.0, < 6.12.53+ 38 more
- (no CPE)range: >= 6.8.0, < 6.12.53
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1.160000.2.5
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.17.7-1.1
- (no CPE)range: < 6.18.16-1.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1.160000.2.5
- (no CPE)range: < 6.12.0-160000.8.1.160000.2.5
- (no CPE)range: < 6.12.0-160000.8.1.160000.2.5
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
- (no CPE)range: < 6.12.0-160000.8.1
Patches
Vulnerability mechanics
References
3News mentions
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