High · published March 18, 2026
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
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 5.3.1, < 5.10.252 | 5.10.252 |
| linux/linux_kernel | ≥ 5.11, < 5.15.202 | 5.15.202 |
| linux/linux_kernel | ≥ 5.16, < 6.1.165 | 6.1.165 |
| linux/linux_kernel | ≥ 6.2, < 6.6.128 | 6.6.128 |
| linux/linux_kernel | ≥ 6.7, < 6.12.75 | 6.12.75 |
| linux/linux_kernel | ≥ 6.13, < 6.18.14 | 6.18.14 |
| linux/linux_kernel | ≥ 6.19, < 6.19.4 | 6.19.4 |
| linux/linux_kernel | all versions | — |