PT-2026-26045 · Linux · Linux Kernel

CVE-2026-23242

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Publicado

2026-01-01

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Atualizado

2026-07-10

CVSS v3.1

7.5

Alta

VetorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description The Linux kernel contains a flaw within the RDMA/siw component related to header processing. Specifically, a potential NULL pointer dereference can occur in the siw tcp rx data() function if siw get hdr() returns -EINVAL before set rx fpdu context(), leading to qp->rx fpdu being NULL. The error path then attempts to dereference qp->rx fpdu->more ddp segs without a prior check, potentially causing a NULL pointer dereference. The issue is identified through KASAN reports indicating a null-ptr-deref within the specified memory range.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

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Enumeração de Fraquezas

Identificadores relacionados

CVE-2026-23242
ECHO-3284-2BE2-E3D8
OPENSUSE-SU-2026:20572-1
SUSE-SU-2026:1573-1
SUSE-SU-2026:1661-1
SUSE-SU-2026:21114-1
SUSE-SU-2026:21123-1
SUSE-SU-2026:21230-1
SUSE-SU-2026:21237-1
SUSE-SU-2026:21255-1
SUSE-SU-2026:21352-1
SUSE-SU-2026:21361-1
USN-8492-1
USN-8492-2
USN-8492-3
USN-8492-4
USN-8492-5
USN-8497-1
USN-8498-1
USN-8499-1

Produtos afetados

Linux Kernel