sugar/linux - Sugar's Linux Kernel Patch

Age	Commit message (Collapse)	Author
2025-11-21	bpf: test the correct stack liveness of tail calls	Eduard Zingerman
	A new test is added: caller_stack_write_tail_call tests that the live stack is correctly tracked for a tail call. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Martin Teichmann <martin.teichmann@xfel.eu> Link: https://lore.kernel.org/r/20251119160355.1160932-5-martin.teichmann@xfel.eu Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-19	selftests/bpf: test cases for callchain sensitive live stack tracking	Eduard Zingerman
	- simple propagation of read/write marks; - joining read/write marks from conditional branches; - avoid must_write marks in when same instruction accesses different stack offsets on different execution paths; - avoid must_write marks in case same instruction accesses stack and non-stack pointers on different execution paths; - read/write marks propagation to outer stack frame; - independent read marks for different callchains ending with the same function; - bpf_calls_callback() dependent logic in liveness.c:bpf_stack_slot_alive(). Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20250918-callchain-sensitive-liveness-v3-12-c3cd27bacc60@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>