Kumar Kartikeya Dwivedi 08b4dc83d9
selftests/bpf: Reject resilient unlock in rbtree callback ...
Add a load-only verifier regression for a resilient lock operation in an
rbtree comparison callback. The program holds the rbtree's regular spin
lock and a separate resilient lock, then releases the resilient lock from
the callback. This isolates the missing kfunc policy check without running
a concurrent tree mutation.
Release the resilient lock before the regular lock on the outer
fall-through. The broken verifier therefore accepts the balanced program,
while the fixed verifier rejects the resilient unlock specifically while
verifying the callback.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com >
Link: https://lore.kernel.org/r/20260903144433.1716731-7-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org >
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08b4dc83d9