CVE-2026-80980

A flaw was found in the Linux kernel's SMC Server Message Block over Remote Direct Memory Access protocol implementation. A concurrency issue exists where three connection state flags killed, freed, and outofsync share a single byte in the smcconnection structure without proper locking mechanisms...

CVE-2026-80980 net/smc: stop killed, freed and out_of_sync sharing a byte

In the Linux kernel, the following vulnerability has been resolved: net/smc: stop killed, freed and outofsync sharing a byte The three connection state flags are single-bit bitfields, so they occupy one byte of struct smcconnection and every store to one is a read-modify-write of the other two: u...