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Description

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.

PUBLISHED Reserved 2026-05-13 | Published 2026-05-27 | Updated 2026-06-01 | Assigner Linux




HIGH: 8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Product status

Default status
unaffected

d329ea5bd8845f0b196bf41b18b6173340d6e0e4 (git) before b3a88fc5ae024d43c5ecf653f3bbe837e4a6dc99
affected

d329ea5bd8845f0b196bf41b18b6173340d6e0e4 (git) before 93df2af4f491de33827550b9d420f01808c0706b
affected

d329ea5bd8845f0b196bf41b18b6173340d6e0e4 (git) before 92e7c209036dcc0e8ffdf806fdfd3645b263bea5
affected

d329ea5bd8845f0b196bf41b18b6173340d6e0e4 (git) before bc64a66e0b9ad937d3d49934242ee62b01ba9a94
affected

d329ea5bd8845f0b196bf41b18b6173340d6e0e4 (git) before c2178ff1c70ebfc2ab9651b230c58a34683db759
affected

d329ea5bd8845f0b196bf41b18b6173340d6e0e4 (git) before d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1
affected

d329ea5bd8845f0b196bf41b18b6173340d6e0e4 (git) before 67bf002a2d7387a6312138210d0bd06e3cf4879b
affected

Default status
affected

5.13
affected

Any version before 5.13
unaffected

5.15.209 (semver)
unaffected

6.1.175 (semver)
unaffected

6.6.140 (semver)
unaffected

6.12.86 (semver)
unaffected

6.18.27 (semver)
unaffected

7.0.4 (semver)
unaffected

7.1-rc1 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/b3a88fc5ae024d43c5ecf653f3bbe837e4a6dc99

git.kernel.org/...c/93df2af4f491de33827550b9d420f01808c0706b

git.kernel.org/...c/92e7c209036dcc0e8ffdf806fdfd3645b263bea5

git.kernel.org/...c/bc64a66e0b9ad937d3d49934242ee62b01ba9a94

git.kernel.org/...c/c2178ff1c70ebfc2ab9651b230c58a34683db759

git.kernel.org/...c/d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1

git.kernel.org/...c/67bf002a2d7387a6312138210d0bd06e3cf4879b

cve.org (CVE-2026-46037)

nvd.nist.gov (CVE-2026-46037)

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