* [syzbot ci] Re: fixes two virtio-net related bugs. [not found] <20251011094107.16439-1-xuanzhuo@linux.alibaba.com> @ 2025-10-11 14:13 ` syzbot ci 0 siblings, 0 replies; 3+ messages in thread From: syzbot ci @ 2025-10-11 14:13 UTC (permalink / raw) To: alvaro.karsz, andrew, davem, edumazet, eperezma, hengqi, jasowang, jiri, kuba, mst, netdev, pabeni, virtualization, willemb, xuanzhuo Cc: syzbot, syzkaller-bugs syzbot ci has tested the following series [v1] fixes two virtio-net related bugs. https://lore.kernel.org/all/20251011094107.16439-1-xuanzhuo@linux.alibaba.com * [PATCH net v1 1/3] virtio-net: fix incorrect flags recording in big mode * [PATCH net v1 2/3] virtio-net: correct hdr_len handling for VIRTIO_NET_F_GUEST_HDRLEN * [PATCH net v1 3/3] virtio-net: correct hdr_len handling for tunnel gso and found the following issue: WARNING in virtio_net_hdr_from_skb Full report is available here: https://ci.syzbot.org/series/694015b3-a5d7-400b-a7c2-c9ee69c35027 *** WARNING in virtio_net_hdr_from_skb tree: net URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/netdev/net.git base: 2c95a756e0cfc19af6d0b32b0c6cf3bada334998 arch: amd64 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 config: https://ci.syzbot.org/builds/5e67ae6c-bfc6-42cc-ab94-ff0cde528221/config C repro: https://ci.syzbot.org/findings/39fb9135-9abf-418b-82a0-6478c7642a48/c_repro syz repro: https://ci.syzbot.org/findings/39fb9135-9abf-418b-82a0-6478c7642a48/syz_repro syz.0.17 uses obsolete (PF_INET,SOCK_PACKET) ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5956 at ./include/linux/skbuff.h:3071 skb_transport_header include/linux/skbuff.h:3071 [inline] WARNING: CPU: 1 PID: 5956 at ./include/linux/skbuff.h:3071 tcp_hdr include/linux/tcp.h:26 [inline] WARNING: CPU: 1 PID: 5956 at ./include/linux/skbuff.h:3071 tcp_hdrlen include/linux/tcp.h:36 [inline] WARNING: CPU: 1 PID: 5956 at ./include/linux/skbuff.h:3071 virtio_net_hdr_from_skb+0x5e6/0x8d0 include/linux/virtio_net.h:226 Modules linked in: CPU: 1 UID: 0 PID: 5956 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:skb_transport_header include/linux/skbuff.h:3071 [inline] RIP: 0010:tcp_hdr include/linux/tcp.h:26 [inline] RIP: 0010:tcp_hdrlen include/linux/tcp.h:36 [inline] RIP: 0010:virtio_net_hdr_from_skb+0x5e6/0x8d0 include/linux/virtio_net.h:226 Code: 6f 01 4c 89 e8 48 c1 e8 03 0f b6 04 28 84 c0 0f 85 d8 02 00 00 41 c6 45 00 05 66 41 bf 08 00 e9 2c fd ff ff e8 2b 33 a8 f7 90 <0f> 0b 90 e9 f4 fb ff ff e8 1d 33 a8 f7 90 0f 0b 90 e9 b7 fc ff ff RSP: 0018:ffffc90003777228 EFLAGS: 00010293 RAX: ffffffff8a16e845 RBX: ffff8881763f4fd0 RCX: ffff888106388000 RDX: 0000000000000000 RSI: 000000000000ffff RDI: 000000000000ffff RBP: 000000000000ffff R08: ffff88817517f059 R09: 0000000000000000 R10: ffff88817517f050 R11: ffffed102ea2fe0c R12: ffff88816a55a498 R13: ffff8881763f4fb6 R14: ffff8881763f4f00 R15: 1ffff1102ec7e9f6 FS: 0000555585886500(0000) GS:ffff8882a9d3b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000010000 CR3: 00000001128ba000 CR4: 00000000000006f0 Call Trace: <TASK> tpacket_rcv+0x1527/0x31c0 net/packet/af_packet.c:2362 deliver_skb net/core/dev.c:2472 [inline] deliver_ptype_list_skb net/core/dev.c:2487 [inline] __netif_receive_skb_core+0x3465/0x4380 net/core/dev.c:6023 __netif_receive_skb_one_core net/core/dev.c:6077 [inline] __netif_receive_skb+0x72/0x380 net/core/dev.c:6192 netif_receive_skb_internal net/core/dev.c:6278 [inline] netif_receive_skb+0x1cb/0x790 net/core/dev.c:6337 tun_rx_batched+0x1b9/0x730 drivers/net/tun.c:1485 tun_get_user+0x2b65/0x3e90 drivers/net/tun.c:1953 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd130b8eec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcdba8f558 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fd130de5fa0 RCX: 00007fd130b8eec9 RDX: 000000000000fdef RSI: 00002000000002c0 RDI: 0000000000000003 RBP: 00007fd130c11f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fd130de5fa0 R14: 00007fd130de5fa0 R15: 0000000000000003 </TASK> *** If these findings have caused you to resend the series or submit a separate fix, please add the following tag to your commit message: Tested-by: syzbot@syzkaller.appspotmail.com --- This report is generated by a bot. It may contain errors. syzbot ci engineers can be reached at syzkaller@googlegroups.com. ^ permalink raw reply [flat|nested] 3+ messages in thread
[parent not found: <20250925022537.91774-1-xuanzhuo@linux.alibaba.com>]
* [syzbot ci] Re: fixes two virtio-net related bugs. [not found] <20250925022537.91774-1-xuanzhuo@linux.alibaba.com> @ 2025-09-25 7:13 ` syzbot ci 2025-09-25 7:16 ` Marco Elver 0 siblings, 1 reply; 3+ messages in thread From: syzbot ci @ 2025-09-25 7:13 UTC (permalink / raw) To: alvaro.karsz, andrew, davem, edumazet, eperezma, hengqi, jasowang, jiri, kuba, mst, netdev, pabeni, virtualization, willemb, xuanzhuo Cc: syzbot, syzkaller-bugs syzbot ci has tested the following series [v1] fixes two virtio-net related bugs. https://lore.kernel.org/all/20250925022537.91774-1-xuanzhuo@linux.alibaba.com * [PATCH net 1/2] virtio-net: fix incorrect flags recording in big mode * [PATCH net 2/2] virtio-net: correct hdr_len handling for VIRTIO_NET_F_GUEST_HDRLEN and found the following issue: WARNING in virtio_net_hdr_from_skb Full report is available here: https://ci.syzbot.org/series/41a78b3d-b982-4507-b02f-1991c8d827c9 *** WARNING in virtio_net_hdr_from_skb tree: net URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/netdev/net.git base: f8b4687151021db61841af983f1cb7be6915d4ef arch: amd64 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 config: https://ci.syzbot.org/builds/bb3f28da-9370-44d7-be20-9c443d5ebfc9/config C repro: https://ci.syzbot.org/findings/7af48589-24a5-4e09-bfe0-1969f5d98f4d/c_repro syz repro: https://ci.syzbot.org/findings/7af48589-24a5-4e09-bfe0-1969f5d98f4d/syz_repro syz.0.17 uses obsolete (PF_INET,SOCK_PACKET) ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6010 at ./include/linux/skbuff.h:3024 skb_transport_header include/linux/skbuff.h:3024 [inline] WARNING: CPU: 0 PID: 6010 at ./include/linux/skbuff.h:3024 skb_transport_offset include/linux/skbuff.h:3175 [inline] WARNING: CPU: 0 PID: 6010 at ./include/linux/skbuff.h:3024 virtio_net_hdr_from_skb+0x669/0xa30 include/linux/virtio_net.h:222 Modules linked in: CPU: 0 UID: 0 PID: 6010 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:skb_transport_header include/linux/skbuff.h:3024 [inline] RIP: 0010:skb_transport_offset include/linux/skbuff.h:3175 [inline] RIP: 0010:virtio_net_hdr_from_skb+0x669/0xa30 include/linux/virtio_net.h:222 Code: 00 00 00 fc ff df 0f b6 04 10 84 c0 0f 85 b0 03 00 00 41 c6 45 00 05 48 8b 74 24 08 83 c6 08 e9 ca fd ff ff e8 c8 1c 72 f7 90 <0f> 0b 90 e9 a7 fa ff ff e8 ba 1c 72 f7 90 0f 0b 90 e9 62 fc ff ff RSP: 0018:ffffc90002def490 EFLAGS: 00010293 RAX: ffffffff8a4da238 RBX: 1ffff11004dafca6 RCX: ffff888023c9b980 RDX: 0000000000000000 RSI: 000000000000ffff RDI: 000000000000ffff RBP: 1ffff1100537cbd8 R08: ffff88804138e059 R09: 0000000000000000 R10: ffff88804138e050 R11: ffffed1008271c0c R12: ffff888029be4000 R13: ffff888026d7e536 R14: ffff888029be5ec4 R15: 000000000000ffff FS: 0000555557e59500(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000003000 CR3: 00000000414a0000 CR4: 00000000000006f0 Call Trace: <TASK> tpacket_rcv+0x15c8/0x3290 net/packet/af_packet.c:2416 __netif_receive_skb_one_core net/core/dev.c:5991 [inline] __netif_receive_skb+0x164/0x380 net/core/dev.c:6104 netif_receive_skb_internal net/core/dev.c:6190 [inline] netif_receive_skb+0x1cb/0x790 net/core/dev.c:6249 tun_rx_batched+0x1b9/0x730 drivers/net/tun.c:1485 tun_get_user+0x2aa2/0x3e20 drivers/net/tun.c:1950 tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1996 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe74f78ec29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffd7d9aa28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fe74f9d5fa0 RCX: 00007fe74f78ec29 RDX: 0000000000000fb5 RSI: 0000200000002780 RDI: 0000000000000004 RBP: 00007fe74f811e41 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe74f9d5fa0 R14: 00007fe74f9d5fa0 R15: 0000000000000003 </TASK> *** If these findings have caused you to resend the series or submit a separate fix, please add the following tag to your commit message: Tested-by: syzbot@syzkaller.appspotmail.com --- This report is generated by a bot. It may contain errors. syzbot ci engineers can be reached at syzkaller@googlegroups.com. ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [syzbot ci] Re: fixes two virtio-net related bugs. 2025-09-25 7:13 ` syzbot ci @ 2025-09-25 7:16 ` Marco Elver 0 siblings, 0 replies; 3+ messages in thread From: Marco Elver @ 2025-09-25 7:16 UTC (permalink / raw) To: syzbot ci Cc: alvaro.karsz, andrew, davem, edumazet, eperezma, hengqi, jasowang, jiri, kuba, mst, netdev, pabeni, virtualization, willemb, xuanzhuo, syzbot, syzkaller-bugs #syz upstream On Thu, 25 Sept 2025 at 09:13, syzbot ci <syzbot+ci4290219e4732157d@syzkaller.appspotmail.com> wrote: > > syzbot ci has tested the following series > > [v1] fixes two virtio-net related bugs. > https://lore.kernel.org/all/20250925022537.91774-1-xuanzhuo@linux.alibaba.com > * [PATCH net 1/2] virtio-net: fix incorrect flags recording in big mode > * [PATCH net 2/2] virtio-net: correct hdr_len handling for VIRTIO_NET_F_GUEST_HDRLEN > > and found the following issue: > WARNING in virtio_net_hdr_from_skb > > Full report is available here: > https://ci.syzbot.org/series/41a78b3d-b982-4507-b02f-1991c8d827c9 > > *** > > WARNING in virtio_net_hdr_from_skb > > tree: net > URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/netdev/net.git > base: f8b4687151021db61841af983f1cb7be6915d4ef > arch: amd64 > compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 > config: https://ci.syzbot.org/builds/bb3f28da-9370-44d7-be20-9c443d5ebfc9/config > C repro: https://ci.syzbot.org/findings/7af48589-24a5-4e09-bfe0-1969f5d98f4d/c_repro > syz repro: https://ci.syzbot.org/findings/7af48589-24a5-4e09-bfe0-1969f5d98f4d/syz_repro > > syz.0.17 uses obsolete (PF_INET,SOCK_PACKET) > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 6010 at ./include/linux/skbuff.h:3024 skb_transport_header include/linux/skbuff.h:3024 [inline] > WARNING: CPU: 0 PID: 6010 at ./include/linux/skbuff.h:3024 skb_transport_offset include/linux/skbuff.h:3175 [inline] > WARNING: CPU: 0 PID: 6010 at ./include/linux/skbuff.h:3024 virtio_net_hdr_from_skb+0x669/0xa30 include/linux/virtio_net.h:222 > Modules linked in: > CPU: 0 UID: 0 PID: 6010 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) > Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 > RIP: 0010:skb_transport_header include/linux/skbuff.h:3024 [inline] > RIP: 0010:skb_transport_offset include/linux/skbuff.h:3175 [inline] > RIP: 0010:virtio_net_hdr_from_skb+0x669/0xa30 include/linux/virtio_net.h:222 > Code: 00 00 00 fc ff df 0f b6 04 10 84 c0 0f 85 b0 03 00 00 41 c6 45 00 05 48 8b 74 24 08 83 c6 08 e9 ca fd ff ff e8 c8 1c 72 f7 90 <0f> 0b 90 e9 a7 fa ff ff e8 ba 1c 72 f7 90 0f 0b 90 e9 62 fc ff ff > RSP: 0018:ffffc90002def490 EFLAGS: 00010293 > RAX: ffffffff8a4da238 RBX: 1ffff11004dafca6 RCX: ffff888023c9b980 > RDX: 0000000000000000 RSI: 000000000000ffff RDI: 000000000000ffff > RBP: 1ffff1100537cbd8 R08: ffff88804138e059 R09: 0000000000000000 > R10: ffff88804138e050 R11: ffffed1008271c0c R12: ffff888029be4000 > R13: ffff888026d7e536 R14: ffff888029be5ec4 R15: 000000000000ffff > FS: 0000555557e59500(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 0000200000003000 CR3: 00000000414a0000 CR4: 00000000000006f0 > Call Trace: > <TASK> > tpacket_rcv+0x15c8/0x3290 net/packet/af_packet.c:2416 > __netif_receive_skb_one_core net/core/dev.c:5991 [inline] > __netif_receive_skb+0x164/0x380 net/core/dev.c:6104 > netif_receive_skb_internal net/core/dev.c:6190 [inline] > netif_receive_skb+0x1cb/0x790 net/core/dev.c:6249 > tun_rx_batched+0x1b9/0x730 drivers/net/tun.c:1485 > tun_get_user+0x2aa2/0x3e20 drivers/net/tun.c:1950 > tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1996 > new_sync_write fs/read_write.c:593 [inline] > vfs_write+0x5c9/0xb30 fs/read_write.c:686 > ksys_write+0x145/0x250 fs/read_write.c:738 > do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] > do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 > entry_SYSCALL_64_after_hwframe+0x77/0x7f > RIP: 0033:0x7fe74f78ec29 > Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 > RSP: 002b:00007fffd7d9aa28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 > RAX: ffffffffffffffda RBX: 00007fe74f9d5fa0 RCX: 00007fe74f78ec29 > RDX: 0000000000000fb5 RSI: 0000200000002780 RDI: 0000000000000004 > RBP: 00007fe74f811e41 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007fe74f9d5fa0 R14: 00007fe74f9d5fa0 R15: 0000000000000003 > </TASK> > > > *** > > If these findings have caused you to resend the series or submit a > separate fix, please add the following tag to your commit message: > Tested-by: syzbot@syzkaller.appspotmail.com > > --- > This report is generated by a bot. It may contain errors. > syzbot ci engineers can be reached at syzkaller@googlegroups.com. > > -- > You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com. > To view this discussion visit https://groups.google.com/d/msgid/syzkaller-bugs/68d4eb92.050a0220.25d7ab.0003.GAE%40google.com. ^ permalink raw reply [flat|nested] 3+ messages in thread
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[not found] <20251011094107.16439-1-xuanzhuo@linux.alibaba.com>
2025-10-11 14:13 ` [syzbot ci] Re: fixes two virtio-net related bugs syzbot ci
[not found] <20250925022537.91774-1-xuanzhuo@linux.alibaba.com>
2025-09-25 7:13 ` syzbot ci
2025-09-25 7:16 ` Marco Elver
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