CVE-2026-23242 — NULL Pointer Dereference in Linux
Severity
7.5HIGHNVD
EPSS
0.1%
top 79.06%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 18
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 [0x00000000000000c0-0x0000000…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6
Affected Packages3 packages
▶CVEListV5linux/linux8b6a361b8c482f22ac99c3273285ff16b23fba91 — ab61841633d10e56a58c1493a262f0d02dba2f5e+8
🔴Vulnerability Details
4GHSA▶
GHSA-6xq4-2j3g-9m44: In the Linux kernel, the following vulnerability has been resolved:
RDMA/siw: Fix potential NULL pointer dereference in header processing
If siw_get↗2026-03-18
OSV▶
CVE-2026-23242: In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix potential NULL pointer dereference in header processing If siw_get_h↗2026-03-18
📋Vendor Advisories
3Debian▶
CVE-2026-23242: linux - In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: F...↗2026