device macvtap2027 entered promiscuous mode 8021q: adding VLAN 0 to HW filter on device macvtap2027 BUG: unable to handle page fault for address: fffffffffffffff0 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD b88f067 P4D b88f067 PUD b891067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 17543 Comm: syz-executor.5 Not tainted 5.16.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__netdev_next_upper_dev net/core/dev.c:7399 [inline] RIP: 0010:__netdev_walk_all_upper_dev+0xed/0x350 net/core/dev.c:7443 Code: e8 28 c2 4e fa 49 8d 7e f1 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 0f b6 14 1a 38 ca 7f 08 84 d2 0f 85 d1 01 00 00 49 8d 7e e8 <45> 0f b6 6e f1 48 89 fa 48 c1 ea 03 80 3c 1a 00 0f 85 ad 01 00 00 RSP: 0018:ffffc9001afe6d00 EFLAGS: 00010246 RAX: 0000000000040000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8728d738 RDI: ffffffffffffffe7 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff8728d832 R11: 0000000000000000 R12: ffff888100000000 R13: ffff8881000000a0 R14: ffffffffffffffff R15: ffff8881000000a0 FS: 00007fbeee1d5700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff0 CR3: 000000018eb6b000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __netdev_has_upper_dev+0x95/0x120 net/core/dev.c:7527 __netdev_upper_dev_link+0x2d6/0x7f0 net/core/dev.c:8122 netdev_upper_dev_link+0x8a/0xc0 net/core/dev.c:8182 macvlan_common_newlink+0xf28/0x17f0 drivers/net/macvlan.c:1502 macvtap_newlink drivers/net/macvtap.c:109 [inline] macvtap_newlink+0x190/0x260 drivers/net/macvtap.c:81 __rtnl_newlink+0x106d/0x1750 net/core/rtnetlink.c:3458 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3506 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5571 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2491 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492 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+0x44/0xae RIP: 0033:0x7fbef0c5fae9 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fbeee1d5188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fbef0d72f60 RCX: 00007fbef0c5fae9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000004 RBP: 00007fbef0cb9f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbef12a6b2f R14: 00007fbeee1d5300 R15: 0000000000022000 Modules linked in: CR2: fffffffffffffff0 ---[ end trace a94f04db7e59662c ]--- RIP: 0010:__netdev_next_upper_dev net/core/dev.c:7399 [inline] RIP: 0010:__netdev_walk_all_upper_dev+0xed/0x350 net/core/dev.c:7443 Code: e8 28 c2 4e fa 49 8d 7e f1 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 0f b6 14 1a 38 ca 7f 08 84 d2 0f 85 d1 01 00 00 49 8d 7e e8 <45> 0f b6 6e f1 48 89 fa 48 c1 ea 03 80 3c 1a 00 0f 85 ad 01 00 00 RSP: 0018:ffffc9001afe6d00 EFLAGS: 00010246 RAX: 0000000000040000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8728d738 RDI: ffffffffffffffe7 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff8728d832 R11: 0000000000000000 R12: ffff888100000000 R13: ffff8881000000a0 R14: ffffffffffffffff R15: ffff8881000000a0 FS: 00007fbeee1d5700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff0 CR3: 000000018eb6b000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e8 28 c2 4e fa callq 0xfa4ec22d 5: 49 8d 7e f1 lea -0xf(%r14),%rdi 9: 48 89 fa mov %rdi,%rdx c: 48 89 f9 mov %rdi,%rcx f: 48 c1 ea 03 shr $0x3,%rdx 13: 83 e1 07 and $0x7,%ecx 16: 0f b6 14 1a movzbl (%rdx,%rbx,1),%edx 1a: 38 ca cmp %cl,%dl 1c: 7f 08 jg 0x26 1e: 84 d2 test %dl,%dl 20: 0f 85 d1 01 00 00 jne 0x1f7 26: 49 8d 7e e8 lea -0x18(%r14),%rdi * 2a: 45 0f b6 6e f1 movzbl -0xf(%r14),%r13d <-- trapping instruction 2f: 48 89 fa mov %rdi,%rdx 32: 48 c1 ea 03 shr $0x3,%rdx 36: 80 3c 1a 00 cmpb $0x0,(%rdx,%rbx,1) 3a: 0f 85 ad 01 00 00 jne 0x1ed