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CVE-2026-98495

net: arp: terminate device name before lookup

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, and 2 more
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: net: arp: terminate device name before lookup The ARP ioctl copies a user-provided struct arpreq into a stack object. Its arp_dev field may contain IFNAMSIZ bytes without a NUL terminator. Such input is passed to dev_get_by_name_rcu() or __dev_get_by_name(), where strcmp() can read past the end of the stack object when a matching alternative interface name exists. Terminate the field before the lookup to prevent the out-of-bounds read.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc · fixed in ae6d704dbf9542b0a0830ec91a2db4f30307e7d8; From 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc · fixed in 47107491b48ceef0a2faa7a010cfa961f211ef9f; From 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc · fixed in 7389757d88f54237951d7497d9c4dae7cc6d64be; From 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc · fixed in 1b08c5c3ac27c9ff91c5309f4a32b4e91ce2263b; From 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc · fixed in 414bbad9928598904313299ac9e037a73f520be1; From 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc · fixed in ba664d83638640cf454b65167339cbf20dfd6f10; From 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc · fixed in 35e716a70733472ede300540082d64c33bf3b4c9; From 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc · fixed in d8b6529e80bcb4fb8177121404cbb3377acaebd2

  • Linux Linux

    5.5

  • KernelLinux

    From 5.5.0 · fixed in 5.10.271; From 5.11.0 · fixed in 5.15.222; From 5.16.0 · fixed in 6.1.189; From 6.2.0 · fixed in 6.6.158; From 6.7.0 · fixed in 6.12.112; From 6.13.0 · fixed in 6.18.55; From 6.19.0 · fixed in 7.2.9

References 8

git.kernel.org