CVE-2026-23242
RDMA/siw: Fix potential NULL pointer dereference in header processing
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Mar 18, 2026 |
| Last Updated | Apr 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
8b6a361b8c482f22ac99c3273285ff16b23fba91 < ab61841633d10e56a58c1493a262f0d02dba2f5e 8b6a361b8c482f22ac99c3273285ff16b23fba91 < 8564dcc12fbb372d984ab45768cae9335777b274 8b6a361b8c482f22ac99c3273285ff16b23fba91 < ab957056192d6bd068b3759cb2077d859cca01f0 8b6a361b8c482f22ac99c3273285ff16b23fba91 < ffba40b67663567481fa8a1ed5d2da36897c175d 8b6a361b8c482f22ac99c3273285ff16b23fba91 < 87b7a036d2c73d5bb3ae2d47dee23de465db3355 8b6a361b8c482f22ac99c3273285ff16b23fba91 < 714c99e1dc8f85f446e05be02ba83972e981a817 8b6a361b8c482f22ac99c3273285ff16b23fba91 < ce025f7f5d070596194315eb2e4e89d568b8a755 8b6a361b8c482f22ac99c3273285ff16b23fba91 < 14ab3da122bd18920ad57428f6cf4fade8385142
Linux / Linux
5.3
References
git.kernel.org: https://git.kernel.org/stable/c/ab61841633d10e56a58c1493a262f0d02dba2f5e git.kernel.org: https://git.kernel.org/stable/c/8564dcc12fbb372d984ab45768cae9335777b274 git.kernel.org: https://git.kernel.org/stable/c/ab957056192d6bd068b3759cb2077d859cca01f0 git.kernel.org: https://git.kernel.org/stable/c/ffba40b67663567481fa8a1ed5d2da36897c175d git.kernel.org: https://git.kernel.org/stable/c/87b7a036d2c73d5bb3ae2d47dee23de465db3355 git.kernel.org: https://git.kernel.org/stable/c/714c99e1dc8f85f446e05be02ba83972e981a817 git.kernel.org: https://git.kernel.org/stable/c/ce025f7f5d070596194315eb2e4e89d568b8a755 git.kernel.org: https://git.kernel.org/stable/c/14ab3da122bd18920ad57428f6cf4fade8385142