CVEvulnerability
CVE-2026-98495
- Status
- Received
- Published
- 2026-10-18
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
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.
References
- https://git.kernel.org/stable/c/1b08c5c3ac27c9ff91c5309f4a32b4e91ce2263b git.kernel.org
- https://git.kernel.org/stable/c/35e716a70733472ede300540082d64c33bf3b4c9 git.kernel.org
- https://git.kernel.org/stable/c/414bbad9928598904313299ac9e037a73f520be1 git.kernel.org
- https://git.kernel.org/stable/c/47107491b48ceef0a2faa7a010cfa961f211ef9f git.kernel.org
- https://git.kernel.org/stable/c/7389757d88f54237951d7497d9c4dae7cc6d64be git.kernel.org
- https://git.kernel.org/stable/c/ae6d704dbf9542b0a0830ec91a2db4f30307e7d8 git.kernel.org
- https://git.kernel.org/stable/c/ba664d83638640cf454b65167339cbf20dfd6f10 git.kernel.org
- https://git.kernel.org/stable/c/d8b6529e80bcb4fb8177121404cbb3377acaebd2 git.kernel.org