CVE-2026-23242

HIGH

RDMA/siw: Fix potential NULL pointer dereference in header processing

Title source: cna
STIX 2.1

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

Scores

CVSS v3 7.5
EPSS 0.0008
EPSS Percentile 23.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (28)
linux/Kernel 5.11.0 - 5.15.202linux
linux/Kernel 5.16.0 - 6.1.165linux
linux/Kernel 5.3.0 - 5.10.252linux
linux/Kernel 6.13.0 - 6.18.14linux
linux/Kernel 6.19.0 - 6.19.4linux
linux/Kernel 6.2.0 - 6.6.128linux
linux/Kernel 6.7.0 - 6.12.75linux
Linux/Linux < 5.3
Linux/Linux 5.10.252 - 5.10.*
Linux/Linux 5.15.202 - 5.15.*
... and 18 more
Published Mar 18, 2026
Tracked Since Mar 18, 2026