7.5

CVE-2026-23242

RDMA/siw: Fix potential NULL pointer dereference in header processing

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
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.3.1 < 5.10.252
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.202
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.165
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.128
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.75
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.14
Linux ≫ Linux Kernel Version >= 6.19 < 6.19.4
Linux ≫ Linux Kernel Version5.3 Update-
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.39% 0.305
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/ab61841633d10e56a58c1493a262f0d02dba2f5e
Patch
https://git.kernel.org/stable/c/8564dcc12fbb372d984ab45768cae9335777b274
Patch
https://git.kernel.org/stable/c/ab957056192d6bd068b3759cb2077d859cca01f0
Patch
https://git.kernel.org/stable/c/ffba40b67663567481fa8a1ed5d2da36897c175d
Patch
https://git.kernel.org/stable/c/87b7a036d2c73d5bb3ae2d47dee23de465db3355
Patch
https://git.kernel.org/stable/c/714c99e1dc8f85f446e05be02ba83972e981a817
Patch
https://git.kernel.org/stable/c/ce025f7f5d070596194315eb2e4e89d568b8a755
Patch
https://git.kernel.org/stable/c/14ab3da122bd18920ad57428f6cf4fade8385142
Patch