Live › vulnerability › CVE-2026-98495
Go to dashboardThe Linux kernel's ARP ioctl copies a user-supplied device name that may lack a NUL terminator, and the name lookup can then read past the end of a stack object when a matching alternative interface name exists. The sources describe an out-of-bounds read, not a write, and do not state a severity or the resulting impact beyond that.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.
Systems running a Linux kernel with the affected net/arp code, where a local process can issue ARP ioctls. The sources do not list affected kernel versions or say which configurations are exposed.
No product ranges from the sources yet.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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.
This page as .md · .json · in your agent: get_signal("CVE-2026-98495")
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