High severity7.5NVD Advisory· Published Mar 18, 2026· Updated May 21, 2026
CVE-2026-23242
CVE-2026-23242
Description
In the Linux kernel, the following vulnerability has been resolved:
RDMA/siw: Fix potential NULL pointer dereference in header processing
If siw_get_hdr() returns -EINVAL before set_rx_fpdu_context(), qp->rx_fpdu can be NULL. The error path in siw_tcp_rx_data() dereferences qp->rx_fpdu->more_ddp_segs without checking, which may lead to a NULL pointer deref. Only check more_ddp_segs when rx_fpdu is present.
KASAN splat: [ 101.384271] KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7] [ 101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
36- osv-coords33 versionspkg:linux/kernelpkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-azure&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-syms&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2016.0pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Micro%206.2pkg: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%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-kvmsmall&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.1pkg:rpm/suse/kernel-livepatch-SLE15-SP7-RT_Update_11&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg: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%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%206.1pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7
>= 5.3.0, < 5.10.252+ 32 more
- (no CPE)range: >= 5.3.0, < 5.10.252
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.12.0-160000.27.1.160000.2.8
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.4.0-41.1.21.18
- (no CPE)range: < 6.4.0-41.1.21.18
- (no CPE)range: < 6.12.0-160000.27.1.160000.2.8
- (no CPE)range: < 6.4.0-41.1
- (no CPE)range: < 6.4.0-41.1
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.4.0-41.1
- (no CPE)range: < 6.4.0-41.1
- (no CPE)range: < 1-150700.1.3.1
- (no CPE)range: < 6.4.0-41.1
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.4.0-150700.7.37.2
- (no CPE)range: < 6.4.0-41.1
- (no CPE)range: < 6.4.0-41.1
- (no CPE)range: < 6.12.0-160000.28.1
- (no CPE)range: < 6.4.0-41.1
- (no CPE)range: < 6.4.0-150700.7.37.2
- (no CPE)range: < 6.4.0-150700.7.37.1
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/14ab3da122bd18920ad57428f6cf4fade8385142nvdPatch
- git.kernel.org/stable/c/714c99e1dc8f85f446e05be02ba83972e981a817nvdPatch
- git.kernel.org/stable/c/8564dcc12fbb372d984ab45768cae9335777b274nvdPatch
- git.kernel.org/stable/c/87b7a036d2c73d5bb3ae2d47dee23de465db3355nvdPatch
- git.kernel.org/stable/c/ab61841633d10e56a58c1493a262f0d02dba2f5envdPatch
- git.kernel.org/stable/c/ab957056192d6bd068b3759cb2077d859cca01f0nvdPatch
- git.kernel.org/stable/c/ce025f7f5d070596194315eb2e4e89d568b8a755nvdPatch
- git.kernel.org/stable/c/ffba40b67663567481fa8a1ed5d2da36897c175dnvdPatch
News mentions
0No linked articles in our index yet.