CVE-2026-68387

In the Linux kernel, the following vulnerability has been resolved:

can: raw: add locking for raw flags bitfield

With commit 890e5198a6e5 ("can: raw: use bitfields to store flags in struct rawsock") the formerly separate integer values have been integrated into a single bitfield. This led to a read-modify-write operation when changing a flag in rawsetsockopt() which now needs a locking to prevent concurrent access.

Instead of adding a lock/unlock hell in each of the flag manipulations this patch introduces a wrapper for a new rawsetsockoptlocked() function analogue to the isotp_setsockopt_locked approach in net/can/isotp.c

[mkl: use Closes tag instead of Link]