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high8.2

CVE-2026-46037

In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: validate reply type before using icmp_pointers Extended echo replies use ICMP_E…

Impact

In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: validate reply type before using icmp_pointers Extended echo replies use ICMP_EXT_ECHOREPLY as the outbound reply type. That value is outside the range covered by icmp_pointers[], which only describes the traditional ICMP types up to NR_ICMP_TYPES. Avoid consulting icmp_pointers[] for reply types outside that range, and use array_index_nospec() for the remaining in-range lookup. Normal ICMP replies keep their existing behavior unchanged.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 5.13 before 5.15.209
from 5.16 before 6.1.175
from 6.2 before 6.6.140
from 6.7 before 6.12.86
from 6.13 before 6.18.27
from 6.19 before 7.0.4

Weakness classification

CWE-125

References