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authorLuis Gerhorst <luis.gerhorst@fau.de>2025-06-03 23:20:24 +0200
committerAlexei Starovoitov <ast@kernel.org>2025-06-09 20:11:10 -0700
commit9124a4508007f146206a279f0c5e81dde314bda1 (patch)
tree716ea2bfaf8021e47012304f85a92138f4347fc8 /include/linux
parentdff883d9e93a7f2f2fa4e38a9444b2c79d6da91a (diff)
bpf: Rename sanitize_stack_spill to nospec_result
This is made to clarify that this flag will cause a nospec to be added after this insn and can therefore be relied upon to reduce speculative path analysis. Signed-off-by: Luis Gerhorst <luis.gerhorst@fau.de> Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Cc: Henriette Herzog <henriette.herzog@rub.de> Cc: Maximilian Ott <ott@cs.fau.de> Cc: Milan Stephan <milan.stephan@fau.de> Link: https://lore.kernel.org/r/20250603212024.338154-1-luis.gerhorst@fau.de Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/bpf_verifier.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h
index 256274acb1d8..2b0954202226 100644
--- a/include/linux/bpf_verifier.h
+++ b/include/linux/bpf_verifier.h
@@ -580,7 +580,7 @@ struct bpf_insn_aux_data {
u64 map_key_state; /* constant (32 bit) key tracking for maps */
int ctx_field_size; /* the ctx field size for load insn, maybe 0 */
u32 seen; /* this insn was processed by the verifier at env->pass_cnt */
- bool sanitize_stack_spill; /* subject to Spectre v4 sanitation */
+ bool nospec_result; /* result is unsafe under speculation, nospec must follow */
bool zext_dst; /* this insn zero extends dst reg */
bool needs_zext; /* alu op needs to clear upper bits */
bool storage_get_func_atomic; /* bpf_*_storage_get() with atomic memory alloc */