[PATCH bpf-next v2 0/2] bpf: Skip bounds adjustment for conditional jumps on same register
From: KaFai Wan
Date: Sat Oct 25 2025 - 01:33:56 EST
This small patchset is about avoid verifier bug warning when conditional
jumps on same register when the register holds a scalar with range.
v2:
- Enhance is_branch_taken() and is_scalar_branch_taken() to handle
branch direction computation for same register. (Eduard and Alexei)
- Update the selftest.
v1:
https://lore.kernel.org/bpf/20251022164457.1203756-1-kafai.wan@xxxxxxxxx/
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KaFai Wan (2):
bpf: Skip bounds adjustment for conditional jumps on same register
selftests/bpf: Add test for BPF_JGT on same register
kernel/bpf/verifier.c | 32 +++++++++++++++++++
.../selftests/bpf/progs/verifier_bounds.c | 18 +++++++++++
2 files changed, 50 insertions(+)
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2.43.0