Josef Bacik 6aff0129f3 bpf: Use the socket of a sk_lookup test run under RCU ... bpf_sk_lookup_assign() accepts only sockets which are freed by RCU, and takes no reference. bpf_prog_test_run_sk_lookup() looks at sk_reuseport of the selected socket and generates its cookie, which is a write, behind bpf_test_timer_leave(), that is outside of the RCU read side critical section in which the program ran. If the socket is closed in the meantime it may be gone. Do both before the section ends. Fixes: 7c32e8f8bc ("bpf: Add PROG_TEST_RUN support for sk_lookup programs") Signed-off-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://patch.msgid.link/20261017230950.802052-7-alexei.starovoitov@gmail.com		2026-10-18 00:36:43 +00:00
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bpf_dummy_struct_ops.c	bpf: Add struct bpf_tramp_node object	2026-06-07 10:03:01 -07:00
Makefile	bpf: Add dummy BPF STRUCT_OPS for test purpose	2021-11-01 14:10:00 -07:00
test_run.c	bpf: Use the socket of a sk_lookup test run under RCU	2026-10-18 00:36:43 +00:00