CVE-2026-46037
8.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | d329ea5bd8845f0b196bf41b18b6173340d6e0e4 < b3a88fc5ae024d43c5ecf653f3bbe837e4a6dc99 | affected |
| Linux | Linux | d329ea5bd8845f0b196bf41b18b6173340d6e0e4 < 93df2af4f491de33827550b9d420f01808c0706b | affected |
| Linux | Linux | d329ea5bd8845f0b196bf41b18b6173340d6e0e4 < 92e7c209036dcc0e8ffdf806fdfd3645b263bea5 | affected |
| Linux | Linux | d329ea5bd8845f0b196bf41b18b6173340d6e0e4 < bc64a66e0b9ad937d3d49934242ee62b01ba9a94 | affected |
| Linux | Linux | d329ea5bd8845f0b196bf41b18b6173340d6e0e4 < c2178ff1c70ebfc2ab9651b230c58a34683db759 | affected |
| Linux | Linux | d329ea5bd8845f0b196bf41b18b6173340d6e0e4 < d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1 | affected |
| Linux | Linux | d329ea5bd8845f0b196bf41b18b6173340d6e0e4 < 67bf002a2d7387a6312138210d0bd06e3cf4879b | affected |
| Linux | Linux | 5.13 | affected |
| Linux | Linux | 0 < 5.13 | unaffected |
| Linux | Linux | 5.15.209 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.175 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.140 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.86 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.27 <= 6.18.* | unaffected |
| Linux | Linux | 7.0.4 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/b3a88fc5ae024d43c5ecf653f3bbe837e4a6dc99
- https://git.kernel.org/stable/c/93df2af4f491de33827550b9d420f01808c0706b
- https://git.kernel.org/stable/c/92e7c209036dcc0e8ffdf806fdfd3645b263bea5
- https://git.kernel.org/stable/c/bc64a66e0b9ad937d3d49934242ee62b01ba9a94
- https://git.kernel.org/stable/c/c2178ff1c70ebfc2ab9651b230c58a34683db759
- https://git.kernel.org/stable/c/d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1
- https://git.kernel.org/stable/c/67bf002a2d7387a6312138210d0bd06e3cf4879b
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