CVE-2026-23242

EUVD-2026-12801
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
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 30%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
5.3.1 ≤
𝑥
< 5.10.252
linuxlinux_kernel
5.11 ≤
𝑥
< 5.15.202
linuxlinux_kernel
5.16 ≤
𝑥
< 6.1.165
linuxlinux_kernel
6.2 ≤
𝑥
< 6.6.128
linuxlinux_kernel
6.7 ≤
𝑥
< 6.12.75
linuxlinux_kernel
6.13 ≤
𝑥
< 6.18.14
linuxlinux_kernel
6.19 ≤
𝑥
< 6.19.4
linuxlinux_kernel
5.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.170-3
fixed
bookworm (security)
6.1.174-1
fixed
bullseye
vulnerable
bullseye (security)
5.10.257-1
fixed
forky
7.0.10-1
fixed
sid
7.0.12-2
fixed
trixie
6.12.86-1
fixed
trixie (security)
6.12.90-2
fixed
linux-6.1
bullseye (security)
6.1.174-1~deb11u1
fixed
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
kernel-64kb
suse enterprise desktop 15 SP7
6.4.0-150700.53.37.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.37.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.37.1
fixed
kernel-default
suse enterprise desktop 15 SP7
6.4.0-150700.53.37.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.37.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.37.1
fixed
kernel-default-base
suse enterprise desktop 15 SP7
6.4.0-150700.53.37.1.150700.17.25.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.37.1.150700.17.25.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.37.1.150700.17.25.1
fixed
kernel-macros
suse enterprise desktop 15 SP7
6.4.0-150700.53.37.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.37.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.37.1
fixed
kernel-obs-build
suse enterprise desktop 15 SP7
6.4.0-150700.53.37.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.37.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.37.1
fixed
kernel-source
suse enterprise desktop 15 SP7
6.4.0-150700.53.37.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.37.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.37.1
fixed
kernel-syms
suse enterprise desktop 15 SP7
6.4.0-150700.53.37.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.37.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.37.1
fixed
kernel-zfcpdump
suse enterprise desktop 15 SP7
6.4.0-150700.53.37.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.37.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.37.1
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
kernel
Azure Linux 3.0
0:6.6.130.1-1.azl3
fixed