./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2865800424 <...> forked to background, child pid 3187 no interfaces have a carrier [ 26.059817][ T3188] 8021q: adding VLAN 0 to HW filter on device bond0 [ 26.076399][ T3188] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.228' (ECDSA) to the list of known hosts. execve("./syz-executor2865800424", ["./syz-executor2865800424"], 0x7ffc701cb960 /* 10 vars */) = 0 brk(NULL) = 0x5555568a1000 brk(0x5555568a1c40) = 0x5555568a1c40 arch_prctl(ARCH_SET_FS, 0x5555568a1300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2865800424", 4096) = 28 brk(0x5555568c2c40) = 0x5555568c2c40 brk(0x5555568c3000) = 0x5555568c3000 mprotect(0x7fe393e23000, 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 mmap(0x20000000, 16506880, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 userfaultfd(UFFD_USER_MODE_ONLY|O_CLOEXEC) = 3 ioctl(3, UFFDIO_API, 0x20000000) = 0 ioctl(3, UFFDIO_REGISTER, 0x20000080) = 0 syzkaller login: [ 42.191747][ T3608] ------------[ cut here ]------------ [ 42.197656][ T3608] WARNING: CPU: 0 PID: 3608 at include/linux/swapops.h:323 change_protection+0x16e9/0x4280 [ 42.207774][ T3608] Modules linked in: [ 42.211653][ T3608] CPU: 0 PID: 3608 Comm: syz-executor286 Not tainted 6.0.0-rc7-syzkaller-00132-g987a926c1d8a #0 [ 42.222082][ T3608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 42.232345][ T3608] RIP: 0010:change_protection+0x16e9/0x4280 [ 42.238303][ T3608] Code: ff 48 8b 84 24 90 00 00 00 80 38 00 0f 85 25 29 00 00 48 8b 44 24 10 48 83 b8 90 00 00 00 00 0f 84 8f f9 ff ff e8 47 66 c3 ff <0f> 0b 48 ba 00 00 00 00 00 fc ff df 48 8b 04 24 48 c1 e8 03 80 3c [ 42.257944][ T3608] RSP: 0018:ffffc9000398f968 EFLAGS: 00010293 [ 42.264002][ T3608] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000000000 [ 42.272023][ T3608] RDX: ffff88801e2a8000 RSI: ffffffff81b8a1d9 RDI: 0000000000000007 [ 42.280051][ T3608] RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 [ 42.288080][ T3608] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 42.296073][ T3608] R13: ffff8880000001e8 R14: 0000000000000000 R15: 000000002063e000 [ 42.304084][ T3608] FS: 00005555568a1300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 42.313049][ T3608] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.319662][ T3608] CR2: 00000000005d84c8 CR3: 00000000253bd000 CR4: 00000000003506f0 [ 42.327661][ T3608] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.335621][ T3608] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.343623][ T3608] Call Trace: [ 42.346944][ T3608] [ 42.349895][ T3608] ? prot_none_hugetlb_entry+0x100/0x100 [ 42.355530][ T3608] ? lock_release+0x780/0x780 [ 42.360234][ T3608] uffd_wp_range+0xf0/0x180 [ 42.364753][ T3608] ? mcopy_continue+0x16d0/0x16d0 [ 42.369820][ T3608] ? vmacache_find+0x62/0x330 [ 42.374512][ T3608] mwriteprotect_range+0x2ea/0x420 [ 42.379658][ T3608] userfaultfd_ioctl+0x438/0x43a0 [ 42.384694][ T3608] ? do_vfs_ioctl+0x132/0x15c0 [ 42.389487][ T3608] ? vfs_fileattr_set+0xbe0/0xbe0 [ 42.394519][ T3608] ? userfaultfd_release+0x660/0x660 [ 42.399864][ T3608] ? find_held_lock+0x2d/0x110 [ 42.404650][ T3608] ? calibrate_delay+0x270/0x1120 [ 42.409867][ T3608] ? lock_downgrade+0x6e0/0x6e0 [ 42.414746][ T3608] ? _raw_spin_unlock_irq+0x1f/0x40 [ 42.419998][ T3608] ? bpf_lsm_file_ioctl+0x5/0x10 [ 42.424947][ T3608] ? userfaultfd_release+0x660/0x660 [ 42.430289][ T3608] __x64_sys_ioctl+0x193/0x200 [ 42.435069][ T3608] do_syscall_64+0x35/0xb0 [ 42.439514][ T3608] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 42.445419][ T3608] RIP: 0033:0x7fe393db6bb9 [ 42.449858][ T3608] 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 [ 42.469510][ T3608] RSP: 002b:00007ffdbfb98898 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.477952][ T3608] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe393db6bb9 [ 42.485932][ T3608] RDX: 00000000200000c0 RSI: 00000000c018aa06 RDI: 0000000000000003 [ 42.493935][ T3608] RBP: 00007fe393d7ad60 R08: 0000000000000000 R09: 0000000000000000 [ 42.502018][ T3608] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe393d7adf0 [ 42.510013][ T3608] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 42.518056][ T3608] [ 42.521076][ T3608] Kernel panic - not syncing: panic_on_warn set ... [ 42.527640][ T3608] CPU: 0 PID: 3608 Comm: syz-executor286 Not tainted 6.0.0-rc7-syzkaller-00132-g987a926c1d8a #0 [ 42.538037][ T3608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 42.548075][ T3608] Call Trace: [ 42.551343][ T3608] [ 42.554262][ T3608] dump_stack_lvl+0xcd/0x134 [ 42.558847][ T3608] panic+0x2c8/0x627 [ 42.562731][ T3608] ? panic_print_sys_info.part.0+0x10b/0x10b [ 42.568706][ T3608] ? __warn.cold+0x248/0x2c4 [ 42.573287][ T3608] ? change_protection+0x16e9/0x4280 [ 42.578564][ T3608] __warn.cold+0x259/0x2c4 [ 42.582969][ T3608] ? change_protection+0x16e9/0x4280 [ 42.588243][ T3608] report_bug+0x1bc/0x210 [ 42.592675][ T3608] handle_bug+0x3c/0x60 [ 42.596821][ T3608] exc_invalid_op+0x14/0x40 [ 42.601310][ T3608] asm_exc_invalid_op+0x16/0x20 [ 42.606147][ T3608] RIP: 0010:change_protection+0x16e9/0x4280 [ 42.612030][ T3608] Code: ff 48 8b 84 24 90 00 00 00 80 38 00 0f 85 25 29 00 00 48 8b 44 24 10 48 83 b8 90 00 00 00 00 0f 84 8f f9 ff ff e8 47 66 c3 ff <0f> 0b 48 ba 00 00 00 00 00 fc ff df 48 8b 04 24 48 c1 e8 03 80 3c [ 42.631624][ T3608] RSP: 0018:ffffc9000398f968 EFLAGS: 00010293 [ 42.637678][ T3608] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000000000 [ 42.645631][ T3608] RDX: ffff88801e2a8000 RSI: ffffffff81b8a1d9 RDI: 0000000000000007 [ 42.653590][ T3608] RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 [ 42.661547][ T3608] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 42.669503][ T3608] R13: ffff8880000001e8 R14: 0000000000000000 R15: 000000002063e000 [ 42.677468][ T3608] ? change_protection+0x16e9/0x4280 [ 42.682748][ T3608] ? change_protection+0x16e9/0x4280 [ 42.688035][ T3608] ? prot_none_hugetlb_entry+0x100/0x100 [ 42.693663][ T3608] ? lock_release+0x780/0x780 [ 42.698331][ T3608] uffd_wp_range+0xf0/0x180 [ 42.702823][ T3608] ? mcopy_continue+0x16d0/0x16d0 [ 42.707841][ T3608] ? vmacache_find+0x62/0x330 [ 42.712508][ T3608] mwriteprotect_range+0x2ea/0x420 [ 42.717608][ T3608] userfaultfd_ioctl+0x438/0x43a0 [ 42.722623][ T3608] ? do_vfs_ioctl+0x132/0x15c0 [ 42.727379][ T3608] ? vfs_fileattr_set+0xbe0/0xbe0 [ 42.732392][ T3608] ? userfaultfd_release+0x660/0x660 [ 42.737669][ T3608] ? find_held_lock+0x2d/0x110 [ 42.742421][ T3608] ? calibrate_delay+0x270/0x1120 [ 42.747433][ T3608] ? lock_downgrade+0x6e0/0x6e0 [ 42.752272][ T3608] ? _raw_spin_unlock_irq+0x1f/0x40 [ 42.757459][ T3608] ? bpf_lsm_file_ioctl+0x5/0x10 [ 42.762386][ T3608] ? userfaultfd_release+0x660/0x660 [ 42.767661][ T3608] __x64_sys_ioctl+0x193/0x200 [ 42.772414][ T3608] do_syscall_64+0x35/0xb0 [ 42.776818][ T3608] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 42.782699][ T3608] RIP: 0033:0x7fe393db6bb9 [ 42.787103][ T3608] 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 [ 42.806718][ T3608] RSP: 002b:00007ffdbfb98898 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.815135][ T3608] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe393db6bb9 [ 42.823095][ T3608] RDX: 00000000200000c0 RSI: 00000000c018aa06 RDI: 0000000000000003 [ 42.831073][ T3608] RBP: 00007fe393d7ad60 R08: 0000000000000000 R09: 0000000000000000 [ 42.839032][ T3608] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe393d7adf0 [ 42.846988][ T3608] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 42.854957][ T3608] [ 42.858254][ T3608] Kernel Offset: disabled [ 42.862672][ T3608] Rebooting in 86400 seconds..