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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 17:05:56 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-09-04 18:17:30 -0700 |
| commit | 506ada89629ec7059b96ecfb0dc7d33ece0103ca (patch) | |
| tree | 0b07297409b68d2333fb4f0eae7f3b072eb68d4c /include/net/fou.h | |
| download | linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.tar.gz linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.zip | |
bpf: mark a NULL kfunc argument precisegrafted
check_kfunc_arg() allows bpf_register_is_null() for nullable arguments
w/o marking the underlying scalar register precise. Hence a checkpoint
created on such a path would prune against arbitrary scalar value.
Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)")
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'include/net/fou.h')
| -rw-r--r-- | include/net/fou.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/net/fou.h b/include/net/fou.h new file mode 100644 index 000000000..824eb4b23 --- /dev/null +++ b/include/net/fou.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __NET_FOU_H +#define __NET_FOU_H + +#include <linux/skbuff.h> + +#include <net/flow.h> +#include <net/gue.h> +#include <net/ip_tunnels.h> +#include <net/udp.h> + +size_t fou_encap_hlen(struct ip_tunnel_encap *e); +size_t gue_encap_hlen(struct ip_tunnel_encap *e); + +int __fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, + u8 *protocol, __be16 *sport, int type); +int __gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, + u8 *protocol, __be16 *sport, int type); + +int register_fou_bpf(void); + +#endif |