./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2172719398 <...> [ 29.968438][ T3209] dhcpcd-run-hook (3209) used greatest stack depth: 22392 bytes left forked to background, child pid 3205 [ 32.000098][ T3206] 8021q: adding VLAN 0 to HW filter on device bond0 [ 32.027510][ T3206] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.177' (ECDSA) to the list of known hosts. execve("./syz-executor2172719398", ["./syz-executor2172719398"], 0x7fff7437ba20 /* 10 vars */) = 0 brk(NULL) = 0x555556298000 brk(0x555556298c40) = 0x555556298c40 arch_prctl(ARCH_SET_FS, 0x555556298300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2172719398", 4096) = 28 brk(0x5555562b9c40) = 0x5555562b9c40 brk(0x5555562ba000) = 0x5555562ba000 mprotect(0x7fdbac2ed000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 openat(AT_FDCWD, "/dev/net/tun", O_WRONLY|O_CREAT|O_TRUNC|O_NOATIME, 000) = 3 ioctl(3, TUNSETIFF, 0x20000200) = 0 ioctl(3, TUNSETLINK, 0x118) = 0 socket(AF_INET, SOCK_PACKET, IPPROTO_IGMP) = 4 ioctl(4, SIOCSIFFLAGS, {ifr_name="syzkaller1", ifr_flags=IFF_UP|IFF_DYNAMIC}) = 0 syzkaller login: [ 50.564694][ T3630] syz-executor217 uses obsolete (PF_INET,SOCK_PACKET) [ 50.573548][ T3630] general protection fault, probably for non-canonical address 0xdffffc0000000c04: 0000 [#1] PREEMPT SMP KASAN [ 50.585296][ T3630] KASAN: probably user-memory-access in range [0x0000000000006020-0x0000000000006027] [ 50.594848][ T3630] CPU: 1 PID: 3630 Comm: syz-executor217 Not tainted 6.1.0-rc7-syzkaller-01763-g65e6af6cebef #0 [ 50.605279][ T3630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 50.615352][ T3630] RIP: 0010:can_rcv_filter+0x36/0x8d0 [ 50.620767][ T3630] Code: 53 48 89 fb 48 83 ec 10 48 89 7c 24 08 e8 d2 be cc f8 48 8d bb 20 60 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e d1 06 00 00 48 8b 44 24 08 31 [ 50.640397][ T3630] RSP: 0018:ffffc90003c6f7e8 EFLAGS: 00010202 [ 50.646484][ T3630] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 50.654474][ T3630] RDX: 0000000000000c04 RSI: ffffffff88b3603e RDI: 0000000000006020 [ 50.662463][ T3630] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001 [ 50.670451][ T3630] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 50.678475][ T3630] R13: ffff8880202dd000 R14: ffff88807cf1c000 R15: ffff88814abdac00 [ 50.686470][ T3630] FS: 0000555556298300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 50.695418][ T3630] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.702019][ T3630] CR2: 000000000045e5f0 CR3: 0000000079607000 CR4: 00000000003506e0 [ 50.710006][ T3630] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.717988][ T3630] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.725983][ T3630] Call Trace: [ 50.729265][ T3630] [ 50.732205][ T3630] can_receive+0x31d/0x580 [ 50.736651][ T3630] canfd_rcv+0x166/0x1a0 [ 50.740914][ T3630] ? can_rcv+0x1a0/0x1a0 [ 50.745186][ T3630] __netif_receive_skb_one_core+0x114/0x180 [ 50.751116][ T3630] ? __netif_receive_skb_core+0x3940/0x3940 [ 50.757127][ T3630] ? ktime_get_with_offset+0x3f6/0x500 [ 50.762620][ T3630] ? lockdep_hardirqs_on+0x7d/0x100 [ 50.767929][ T3630] ? ktime_get_with_offset+0x3f6/0x500 [ 50.773412][ T3630] ? ktime_get_with_offset+0x371/0x500 [ 50.778896][ T3630] __netif_receive_skb+0x1f/0x1c0 [ 50.783955][ T3630] netif_receive_skb+0x16e/0x9e0 [ 50.788928][ T3630] ? __netif_receive_skb+0x1c0/0x1c0 [ 50.794251][ T3630] ? _copy_from_iter+0x23d/0xf40 [ 50.799215][ T3630] ? skb_set_owner_w+0x26d/0x420 [ 50.804189][ T3630] tun_rx_batched+0x4b3/0x7a0 [ 50.808892][ T3630] ? tun_flow_cleanup+0x2a0/0x2a0 [ 50.813936][ T3630] ? lock_release+0x810/0x810 [ 50.818640][ T3630] ? tun_get_user+0x21e2/0x3870 [ 50.823515][ T3630] ? lock_downgrade+0x6e0/0x6e0 [ 50.828397][ T3630] ? __local_bh_enable_ip+0xa4/0x130 [ 50.833699][ T3630] tun_get_user+0x23c3/0x3870 [ 50.838406][ T3630] ? tun_build_skb+0x1160/0x1160 [ 50.843372][ T3630] ? lock_downgrade+0x6e0/0x6e0 [ 50.848254][ T3630] tun_chr_write_iter+0xdf/0x200 [ 50.853213][ T3630] vfs_write+0x9ed/0xdd0 [ 50.857477][ T3630] ? kernel_write+0x630/0x630 [ 50.862174][ T3630] ? find_held_lock+0x2d/0x110 [ 50.866960][ T3630] ? lock_downgrade+0x6e0/0x6e0 [ 50.871837][ T3630] ? __fget_light+0x20a/0x270 [ 50.876540][ T3630] ksys_write+0x12b/0x250 [ 50.880895][ T3630] ? __ia32_sys_read+0xb0/0xb0 [ 50.885683][ T3630] ? lockdep_hardirqs_on+0x7d/0x100 [ 50.890906][ T3630] ? _raw_spin_unlock_irq+0x2e/0x50 [ 50.896134][ T3630] ? ptrace_notify+0xfe/0x140 [ 50.900834][ T3630] do_syscall_64+0x39/0xb0 [ 50.905274][ T3630] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 50.911184][ T3630] RIP: 0033:0x7fdbac280d59 [ 50.915610][ T3630] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 50.935229][ T3630] RSP: 002b:00007ffe02599c08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 50.943656][ T3630] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdbac280d59 [ 50.951643][ T3630] RDX: 0000000000000056 RSI: 0000000020000040 RDI: 0000000000000003 [ 50.959628][ T3630] RBP: 00007fdbac244f00 R08: 00000000ffff8000 R09: 0000000000000000 [ 50.967613][ T3630] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdbac244f90 [ 50.975600][ T3630] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 50.983592][ T3630] [ 50.986614][ T3630] Modules linked in: [ 50.990578][ T3630] ---[ end trace 0000000000000000 ]--- [ 50.996048][ T3630] RIP: 0010:can_rcv_filter+0x36/0x8d0 [ 51.001502][ T3630] Code: 53 48 89 fb 48 83 ec 10 48 89 7c 24 08 e8 d2 be cc f8 48 8d bb 20 60 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e d1 06 00 00 48 8b 44 24 08 31 [ 51.021169][ T3630] RSP: 0018:ffffc90003c6f7e8 EFLAGS: 00010202 [ 51.027277][ T3630] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 51.035256][ T3630] RDX: 0000000000000c04 RSI: ffffffff88b3603e RDI: 0000000000006020 [ 51.043308][ T3630] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001 [ 51.051340][ T3630] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 51.059361][ T3630] R13: ffff8880202dd000 R14: ffff88807cf1c000 R15: ffff88814abdac00 [ 51.067385][ T3630] FS: 0000555556298300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 51.076342][ T3630] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.082998][ T3630] CR2: 000000000045e5f0 CR3: 0000000079607000 CR4: 00000000003506e0 [ 51.091119][ T3630] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.099136][ T3630] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.107156][ T3630] Kernel panic - not syncing: Fatal exception in interrupt [ 51.114579][ T3630] Kernel Offset: disabled [ 51.118922][ T3630] Rebooting in 86400 seconds..