From: Feng Yang <yangfeng@kylinos.cn>
These pointers are allocated by kzalloc.
Replace kvfree() with kfree() to avoid unnecessary is_vmalloc_addr()
check in kvfree().
This is the remaining unmodified part from [1].
[1] https://lore.kernel.org/bpf/20250811123949.552885-1-rongqianfeng@vivo.com.
Signed-off-by: Feng Yang <yangfeng@kylinos.cn>
---
Changes in v2:
- Add commit message, thanks: Daniel Borkmann.
- Link to v1: https://lore.kernel.org/all/20250826073920.1215368-1-yangfeng59949@163.com/
---
kernel/bpf/verifier.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 5c9dd16b2c56..b9394f8fac0e 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -2021,7 +2021,7 @@ static void free_backedges(struct bpf_scc_visit *visit)
for (backedge = visit->backedges; backedge; backedge = next) {
free_verifier_state(&backedge->state, false);
next = backedge->next;
- kvfree(backedge);
+ kfree(backedge);
}
visit->backedges = NULL;
}
@@ -19651,7 +19651,7 @@ static int is_state_visited(struct bpf_verifier_env *env, int insn_idx)
err = maybe_enter_scc(env, new);
if (err) {
free_verifier_state(new, false);
- kvfree(new_sl);
+ kfree(new_sl);
return err;
}
--
2.43.0