Medium severity5.5NVD Advisory· Published Oct 1, 2025· Updated Jun 17, 2026
CVE-2025-39920
CVE-2025-39920
Description
In the Linux kernel, the following vulnerability has been resolved:
pcmcia: Add error handling for add_interval() in do_validate_mem()
In the do_validate_mem(), the call to add_interval() does not handle errors. If kmalloc() fails in add_interval(), it could result in a null pointer being inserted into the linked list, leading to illegal memory access when sub_interval() is called next.
This patch adds an error handling for the add_interval(). If add_interval() returns an error, the function will return early with the error code.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
83(expand)+ 6 more
- (no CPE)
- (no CPE)range: 2.6.34
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=2.6.34,<5.4.299
- cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:*
- osv-coords75 versionspkg:linux/kernelpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%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-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-livepatch-SLE15-SP7_Update_6&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP7pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-livepatch-SLE15-SP7-RT_Update_6&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP6pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.6pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_16&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP6pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.6pkg:rpm/suse/kernel-livepatch-SLE15-SP6-RT_Update_16&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.6pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP6pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.6pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.6pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.6pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.6
>= 2.6.34, < 5.4.299+ 74 more
- (no CPE)range: >= 2.6.34, < 5.4.299
- (no CPE)range: < 6.4.0-35.1
- (no CPE)range: < 6.4.0-35.1.21.12
- (no CPE)range: < 6.4.0-35.1
- (no CPE)range: < 6.4.0-35.1
- (no CPE)range: < 6.4.0-35.1.21.12
- (no CPE)range: < 6.4.0-35.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.4.0-150700.20.18.1
- (no CPE)range: < 6.4.0-150700.20.18.1
- (no CPE)range: < 6.4.0-150700.20.18.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 1-150700.15.3.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.4.0-35.1
- (no CPE)range: < 6.4.0-150700.7.22.1
- (no CPE)range: < 6.4.0-35.1
- (no CPE)range: < 6.4.0-37.1
- (no CPE)range: < 6.4.0-37.1
- (no CPE)range: < 6.4.0-37.1
- (no CPE)range: < 6.4.0-37.1
- (no CPE)range: < 6.4.0-150700.53.22.1.150700.17.15.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 1-150700.1.3.1
- (no CPE)range: < 6.4.0-150700.7.22.1
- (no CPE)range: < 6.4.0-150700.7.22.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 1-150600.13.3.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1.150600.12.32.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 1-150600.1.3.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.4.0-150600.8.52.1
- (no CPE)range: < 6.4.0-150600.8.52.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.8.52.1
- (no CPE)range: < 6.4.0-150600.8.52.1
- (no CPE)range: < 6.4.0-150600.8.52.1
- (no CPE)range: < 6.4.0-150600.23.73.1.150600.12.32.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.8.52.1
Patches
Vulnerability mechanics
References
10- git.kernel.org/stable/c/06b26e3099207c94b3d1be8565aedc6edc4f0a60nvdPatch
- git.kernel.org/stable/c/289b58f8ff3198d091074a751d6b8f6827726f3envdPatch
- git.kernel.org/stable/c/369bf6e241506583f4ee7593c53b92e5a9f271b4nvdPatch
- git.kernel.org/stable/c/4a81f78caa53e0633cf311ca1526377d9bff7479nvdPatch
- git.kernel.org/stable/c/5b60ed401b47897352c520bc724c85aa908dedccnvdPatch
- git.kernel.org/stable/c/85be7ef8c8e792a414940a38d94565dd48d2f236nvdPatch
- git.kernel.org/stable/c/8699358b6ac99b8ccc97ed9e6e3669ef8958ef7bnvdPatch
- git.kernel.org/stable/c/ae184024ef31423e5beb44cf4f52999bbcf2fe5bnvdPatch
- lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlnvdMailing ListThird Party Advisory
News mentions
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