OESA-2026-2494 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: udp: Fix wildcard bind conflict check when using hash2 When binding a udpsock to a local address and port, UDP uses two hashes udptable-hash and udptable-hash2 f...

udp: Fix wildcard bind conflict check when using hash2

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SUSE CVE-2026-31503

In the Linux kernel, the following vulnerability has been resolved: udp: Fix wildcard bind conflict check when using hash2 When binding a udpsock to a local address and port, UDP uses two hashes udptable-hash and udptable-hash2 for collision detection. The current code switches to "hash2" when...

EUVD-2026-24880

In the Linux kernel, the following vulnerability has been resolved: udp: Fix wildcard bind conflict check when using hash2 When binding a udpsock to a local address and port, UDP uses two hashes udptable-hash and udptable-hash2 for collision detection. The current code switches to "hash2" when...

CVE-2026-31503

CVE-2026-31503 concerns a Linux kernel UDP hash2-based wildcard-bind conflict check that can miss an in-use port when many sockets bind to the same port. The issue arises because UDP uses two hashes (hash and hash2) for collision detection and switches to hash2 only when hslot->count > 10, ...

CVE-2026-31503 udp: Fix wildcard bind conflict check when using hash2

In the Linux kernel, the following vulnerability has been resolved: udp: Fix wildcard bind conflict check when using hash2 When binding a udpsock to a local address and port, UDP uses two hashes udptable-hash and udptable-hash2 for collision detection. The current code switches to "hash2" when...