Syzbot CI

Subject	Make TC BPF helpers preserve skb metadata
Author	jakub@cloudflare.com
Date	2025-11-05 20:19:38 +0000 UTC
Version
Cc	andrii@kernel.org arthur@arthurfabre.com ast@kernel.org bpf@vger.kernel.org daniel@iogearbox.net davem@davemloft.net eddyz87@gmail.com edumazet@google.com haoluo@google.com hawk@kernel.org horms@kernel.org jakub@cloudflare.com john.fastabend@gmail.com jolsa@kernel.org kernel-team@cloudflare.com kpsingh@kernel.org kuba@kernel.org martin.lau@linux.dev netdev@vger.kernel.org pabeni@redhat.com sdf@fomichev.me song@kernel.org yonghong.song@linux.dev

Subject

Make TC BPF helpers preserve skb metadata

Author

jakub@cloudflare.com

Date

2025-11-05 20:19:38 +0000 UTC

Version

andrii@kernel.org arthur@arthurfabre.com ast@kernel.org bpf@vger.kernel.org daniel@iogearbox.net davem@davemloft.net eddyz87@gmail.com edumazet@google.com haoluo@google.com hawk@kernel.org horms@kernel.org jakub@cloudflare.com john.fastabend@gmail.com jolsa@kernel.org kernel-team@cloudflare.com kpsingh@kernel.org kuba@kernel.org martin.lau@linux.dev netdev@vger.kernel.org pabeni@redhat.com sdf@fomichev.me song@kernel.org yonghong.song@linux.dev

Name	Content [All]
[PATCH bpf-next v4 01/16] net: Helper to move packet data and metadata after skb_push/pull	[Body]
[PATCH bpf-next v4 02/16] net: Preserve metadata on pskb_expand_head	[Body]
[PATCH bpf-next v4 03/16] bpf: Unclone skb head on bpf_dynptr_write to skb metadata	[Body]
[PATCH bpf-next v4 04/16] vlan: Make vlan_remove_tag return nothing	[Body]
[PATCH bpf-next v4 05/16] bpf: Make bpf_skb_vlan_pop helper metadata-safe	[Body]
[PATCH bpf-next v4 06/16] bpf: Make bpf_skb_vlan_push helper metadata-safe	[Body]
[PATCH bpf-next v4 07/16] bpf: Make bpf_skb_adjust_room metadata-safe	[Body]
[PATCH bpf-next v4 08/16] bpf: Make bpf_skb_change_proto helper metadata-safe	[Body]
[PATCH bpf-next v4 09/16] bpf: Make bpf_skb_change_head helper metadata-safe	[Body]
[PATCH bpf-next v4 10/16] selftests/bpf: Verify skb metadata in BPF instead of userspace	[Body]
[PATCH bpf-next v4 11/16] selftests/bpf: Dump skb metadata on verification failure	[Body]
[PATCH bpf-next v4 12/16] selftests/bpf: Expect unclone to preserve skb metadata	[Body]
[PATCH bpf-next v4 13/16] selftests/bpf: Cover skb metadata access after vlan push/pop helper	[Body]
[PATCH bpf-next v4 14/16] selftests/bpf: Cover skb metadata access after bpf_skb_adjust_room	[Body]
[PATCH bpf-next v4 15/16] selftests/bpf: Cover skb metadata access after change_head/tail helper	[Body]
[PATCH bpf-next v4 16/16] selftests/bpf: Cover skb metadata access after bpf_skb_change_proto	[Body]

Name

Content [All]

[PATCH bpf-next v4 01/16] net: Helper to move packet data and metadata after skb_push/pull

[PATCH bpf-next v4 02/16] net: Preserve metadata on pskb_expand_head

[PATCH bpf-next v4 03/16] bpf: Unclone skb head on bpf_dynptr_write to skb metadata

[PATCH bpf-next v4 04/16] vlan: Make vlan_remove_tag return nothing

[PATCH bpf-next v4 05/16] bpf: Make bpf_skb_vlan_pop helper metadata-safe

[PATCH bpf-next v4 06/16] bpf: Make bpf_skb_vlan_push helper metadata-safe

[PATCH bpf-next v4 07/16] bpf: Make bpf_skb_adjust_room metadata-safe

[PATCH bpf-next v4 08/16] bpf: Make bpf_skb_change_proto helper metadata-safe

[PATCH bpf-next v4 09/16] bpf: Make bpf_skb_change_head helper metadata-safe

[PATCH bpf-next v4 10/16] selftests/bpf: Verify skb metadata in BPF instead of userspace

[PATCH bpf-next v4 11/16] selftests/bpf: Dump skb metadata on verification failure

[PATCH bpf-next v4 12/16] selftests/bpf: Expect unclone to preserve skb metadata

[PATCH bpf-next v4 13/16] selftests/bpf: Cover skb metadata access after vlan push/pop helper

[PATCH bpf-next v4 14/16] selftests/bpf: Cover skb metadata access after bpf_skb_adjust_room

[PATCH bpf-next v4 15/16] selftests/bpf: Cover skb metadata access after change_head/tail helper

[PATCH bpf-next v4 16/16] selftests/bpf: Cover skb metadata access after bpf_skb_change_proto

Session 2025-11-05

Passed

ID (for dev)	e152db3e-4d00-48d3-b937-b1bcc584b56d
Status	finished
Triaged	OK [Log]
Execution Log	[Link]

Test	Base	Patched	Verdict
[KASAN] Build Base	11369e6e337a3c57ba60b7788046fb41e234b083 [Config]		passed [Log]
[KASAN] Boot test: Base	11369e6e337a3c57ba60b7788046fb41e234b083 [Config]		passed
[KASAN] Build Patched		11369e6e337a3c57ba60b7788046fb41e234b083 [Config] [patched]	passed [Log]
[KASAN] Boot test: Patched		11369e6e337a3c57ba60b7788046fb41e234b083 [Config] [patched]	passed
[KASAN] Fuzzing	11369e6e337a3c57ba60b7788046fb41e234b083 [Config]	11369e6e337a3c57ba60b7788046fb41e234b083 [Config] [patched]	passed [Log] [Artifacts]

Patches (16)

Series Summary

Sessions

Session 2025-11-05