RDMA/siw: Fix potential NULL pointer dereference in header processing
CVE-2026-23242 is fixed in 15 products on 1 platform, first by DEBIAN-CVE-2026-23242, released March 18, 2026. It is not reported as exploited. Patch Radar priority: High.
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
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| dtb-aarch64 · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-64kb · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-azure · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-default · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-default-base · opensuse-leap 16.0 | 6.12.0-160000.27.1.160000.2.8 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-docs · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-kvmsmall · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-livepatch-SLE15-SP7-RT_Update_11 · sles 15.7 | 1-150700.1.3.1 | SUSE-SU-2026:1573-1 | Apr 23, 2026 |
| kernel-obs-build · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-obs-qa · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-rt · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-source · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-syms · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| kernel-zfcpdump · opensuse-leap 16.0 | 6.12.0-160000.28.1 | OPENSUSE-SU-2026:20572-1 | Apr 20, 2026 |
| linux · Debian 12.15 (bookworm) | 6.1.170-1 | DEBIAN-CVE-2026-23242 | Mar 18, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.85-1 | DEBIAN-CVE-2026-23242 | Mar 18, 2026 |
| linux · Debian 14 | 6.18.14-1 | DEBIAN-CVE-2026-23242 | Mar 18, 2026 |
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