bond1: (slave gre1): The slave device specified does not support setting the MAC address bond1: (slave gre1): Setting fail_over_mac to active for active-backup mode bond1: (slave gre1): making interface the new active one device gre1 entered promiscuous mode bond1: (slave gre1): Enslaving as an active interface with an up link general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID: 3603 Comm: syz-executor346 Not tainted 6.0.0-rc6-next-20220923-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 RIP: 0010:_compound_head include/linux/page-flags.h:253 [inline] RIP: 0010:put_page include/linux/mm.h:1203 [inline] RIP: 0010:__skb_frag_unref include/linux/skbuff.h:3381 [inline] RIP: 0010:skb_release_data+0x449/0x870 net/core/skbuff.c:685 Code: e8 7c 89 15 00 31 ff 41 89 c4 89 c6 e8 70 ba 51 fa 45 84 e4 0f 85 4f ff ff ff e8 d2 bd 51 fa 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 0f 85 4a 03 00 00 48 8b 45 08 31 ff 49 89 c4 48 89 RSP: 0018:ffffc90003b6f660 EFLAGS: 00010202 RAX: 0000000000000001 RBX: ffff8880172a8a00 RCX: 0000000000000000 RDX: ffff888075603a80 RSI: ffffffff872ad62e RDI: 0000000000000008 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88801c3ca0f0 R14: 0000000000000000 R15: dffffc0000000000 FS: 00005555566d7300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c5ad45a0e0 CR3: 000000007af9e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_release_all net/core/skbuff.c:756 [inline] __kfree_skb net/core/skbuff.c:770 [inline] kfree_skb_reason+0x186/0x4b0 net/core/skbuff.c:793 kfree_skb_list_reason+0x47/0x70 net/core/skbuff.c:803 __dev_xmit_skb net/core/dev.c:3886 [inline] __dev_queue_xmit+0x237b/0x3b60 net/core/dev.c:4222 packet_snd net/packet/af_packet.c:3073 [inline] packet_sendmsg+0x3354/0x5500 net/packet/af_packet.c:3104 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x712/0x8c0 net/socket.c:2482 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536 __sys_sendmsg+0xf3/0x1c0 net/socket.c:2565 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9fbd7ab1f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe2e98e498 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9fbd7ab1f9 RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffe2e98e638 R09: 00007ffe2e98e638 R10: 00007ffe2e98e638 R11: 0000000000000246 R12: 00007f9fbd76ea80 R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:_compound_head include/linux/page-flags.h:253 [inline] RIP: 0010:put_page include/linux/mm.h:1203 [inline] RIP: 0010:__skb_frag_unref include/linux/skbuff.h:3381 [inline] RIP: 0010:skb_release_data+0x449/0x870 net/core/skbuff.c:685 Code: e8 7c 89 15 00 31 ff 41 89 c4 89 c6 e8 70 ba 51 fa 45 84 e4 0f 85 4f ff ff ff e8 d2 bd 51 fa 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 0f 85 4a 03 00 00 48 8b 45 08 31 ff 49 89 c4 48 89 RSP: 0018:ffffc90003b6f660 EFLAGS: 00010202 RAX: 0000000000000001 RBX: ffff8880172a8a00 RCX: 0000000000000000 RDX: ffff888075603a80 RSI: ffffffff872ad62e RDI: 0000000000000008 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88801c3ca0f0 R14: 0000000000000000 R15: dffffc0000000000 FS: 00005555566d7300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c5ad45a0e0 CR3: 000000007af9e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e8 7c 89 15 00 callq 0x158981 5: 31 ff xor %edi,%edi 7: 41 89 c4 mov %eax,%r12d a: 89 c6 mov %eax,%esi c: e8 70 ba 51 fa callq 0xfa51ba81 11: 45 84 e4 test %r12b,%r12b 14: 0f 85 4f ff ff ff jne 0xffffff69 1a: e8 d2 bd 51 fa callq 0xfa51bdf1 1f: 48 8d 7d 08 lea 0x8(%rbp),%rdi 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) <-- trapping instruction 2f: 0f 85 4a 03 00 00 jne 0x37f 35: 48 8b 45 08 mov 0x8(%rbp),%rax 39: 31 ff xor %edi,%edi 3b: 49 89 c4 mov %rax,%r12 3e: 48 rex.W 3f: 89 .byte 0x89