Vulnerability 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
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.3.1, < 5.10.252 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/14ab3da122bd18920ad57428f6cf4fade8385142Patch
- https://git.kernel.org/stable/c/714c99e1dc8f85f446e05be02ba83972e981a817Patch
- https://git.kernel.org/stable/c/8564dcc12fbb372d984ab45768cae9335777b274Patch
- https://git.kernel.org/stable/c/87b7a036d2c73d5bb3ae2d47dee23de465db3355Patch
- https://git.kernel.org/stable/c/ab61841633d10e56a58c1493a262f0d02dba2f5ePatch
- https://git.kernel.org/stable/c/ab957056192d6bd068b3759cb2077d859cca01f0Patch
- https://git.kernel.org/stable/c/ce025f7f5d070596194315eb2e4e89d568b8a755Patch
- https://git.kernel.org/stable/c/ffba40b67663567481fa8a1ed5d2da36897c175dPatch
FAQ
What is CVE-2026-23242?
CVE-2026-23242 is a vulnerability with a CVSS score of 7.5 (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(...
How severe is CVE-2026-23242?
CVE-2026-23242 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-23242?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.