./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2587908342 <...> forked to background, child pid 3184 no interfaces have a carrier [ 22.345455][ T3185] 8021q: adding VLAN 0 to HW filter on device bond0 [ 22.358987][ T3185] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.103' (ECDSA) to the list of known hosts. execve("./syz-executor2587908342", ["./syz-executor2587908342"], 0x7ffcd3a6b950 /* 10 vars */) = 0 brk(NULL) = 0x555555ceb000 brk(0x555555cebc40) = 0x555555cebc40 arch_prctl(ARCH_SET_FS, 0x555555ceb300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2587908342", 4096) = 28 brk(0x555555d0cc40) = 0x555555d0cc40 brk(0x555555d0d000) = 0x555555d0d000 mprotect(0x7fc1b3cf2000, 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: [ 42.084879][ T3605] ------------[ cut here ]------------ [ 42.090562][ T3605] WARNING: CPU: 0 PID: 3605 at include/linux/swapops.h:323 change_protection+0x16e9/0x4280 [ 42.100669][ T3605] Modules linked in: [ 42.104562][ T3605] CPU: 0 PID: 3605 Comm: syz-executor258 Not tainted 6.0.0-syzkaller-00372-ga5088ee7251e #0 [ 42.114667][ T3605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 42.124760][ T3605] RIP: 0010:change_protection+0x16e9/0x4280 [ 42.130695][ T3605] 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 67 65 c3 ff <0f> 0b 48 ba 00 00 00 00 00 fc ff df 48 8b 04 24 48 c1 e8 03 80 3c [ 42.150328][ T3605] RSP: 0018:ffffc9000379f968 EFLAGS: 00010293 [ 42.156399][ T3605] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000000000 [ 42.164575][ T3605] RDX: ffff88807de5d880 RSI: ffffffff81b8af89 RDI: 0000000000000007 [ 42.172570][ T3605] RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 [ 42.180648][ T3605] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 42.188663][ T3605] R13: ffff8880000001e8 R14: 0000000000000000 R15: 000000002063e000 [ 42.196681][ T3605] FS: 0000555555ceb300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 42.205630][ T3605] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.212346][ T3605] CR2: 00000000005d84c8 CR3: 0000000075537000 CR4: 0000000000350ef0 [ 42.220463][ T3605] Call Trace: [ 42.223739][ T3605] [ 42.226726][ T3605] ? prot_none_hugetlb_entry+0x100/0x100 [ 42.232388][ T3605] ? lock_release+0x780/0x780 [ 42.237184][ T3605] uffd_wp_range+0xf0/0x180 [ 42.241699][ T3605] ? mcopy_continue+0x16d0/0x16d0 [ 42.246761][ T3605] ? vmacache_find+0x62/0x330 [ 42.251454][ T3605] mwriteprotect_range+0x2ea/0x420 [ 42.256554][ T3605] userfaultfd_ioctl+0x438/0x43a0 [ 42.261611][ T3605] ? do_vfs_ioctl+0x132/0x15c0 [ 42.266383][ T3605] ? vfs_fileattr_set+0xbe0/0xbe0 [ 42.271432][ T3605] ? userfaultfd_release+0x660/0x660 [ 42.276756][ T3605] ? find_held_lock+0x2d/0x110 [ 42.281511][ T3605] ? calibrate_delay+0x270/0x1120 [ 42.286522][ T3605] ? lock_downgrade+0x6e0/0x6e0 [ 42.291399][ T3605] ? _raw_spin_unlock_irq+0x1f/0x40 [ 42.296656][ T3605] ? bpf_lsm_file_ioctl+0x5/0x10 [ 42.301591][ T3605] ? userfaultfd_release+0x660/0x660 [ 42.306921][ T3605] __x64_sys_ioctl+0x193/0x200 [ 42.311868][ T3605] do_syscall_64+0x35/0xb0 [ 42.316275][ T3605] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 42.322193][ T3605] RIP: 0033:0x7fc1b3c85bb9 [ 42.326645][ T3605] 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 [ 42.346344][ T3605] RSP: 002b:00007ffe0d6e5ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.355156][ T3605] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc1b3c85bb9 [ 42.363187][ T3605] RDX: 00000000200000c0 RSI: 00000000c018aa06 RDI: 0000000000000003 [ 42.371199][ T3605] RBP: 00007fc1b3c49d60 R08: 0000000000000000 R09: 0000000000000000 [ 42.379193][ T3605] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc1b3c49df0 [ 42.387203][ T3605] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 42.395167][ T3605] [ 42.398213][ T3605] Kernel panic - not syncing: panic_on_warn set ... [ 42.404795][ T3605] CPU: 0 PID: 3605 Comm: syz-executor258 Not tainted 6.0.0-syzkaller-00372-ga5088ee7251e #0 [ 42.414929][ T3605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 42.425316][ T3605] Call Trace: [ 42.428582][ T3605] [ 42.431497][ T3605] dump_stack_lvl+0xcd/0x134 [ 42.436100][ T3605] panic+0x2c8/0x627 [ 42.439981][ T3605] ? panic_print_sys_info.part.0+0x10b/0x10b [ 42.445950][ T3605] ? __warn.cold+0x248/0x2c4 [ 42.450529][ T3605] ? change_protection+0x16e9/0x4280 [ 42.455799][ T3605] __warn.cold+0x259/0x2c4 [ 42.460204][ T3605] ? change_protection+0x16e9/0x4280 [ 42.465494][ T3605] report_bug+0x1bc/0x210 [ 42.469816][ T3605] handle_bug+0x3c/0x60 [ 42.473975][ T3605] exc_invalid_op+0x14/0x40 [ 42.478462][ T3605] asm_exc_invalid_op+0x16/0x20 [ 42.483296][ T3605] RIP: 0010:change_protection+0x16e9/0x4280 [ 42.489175][ T3605] 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 67 65 c3 ff <0f> 0b 48 ba 00 00 00 00 00 fc ff df 48 8b 04 24 48 c1 e8 03 80 3c [ 42.508792][ T3605] RSP: 0018:ffffc9000379f968 EFLAGS: 00010293 [ 42.514853][ T3605] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000000000 [ 42.522905][ T3605] RDX: ffff88807de5d880 RSI: ffffffff81b8af89 RDI: 0000000000000007 [ 42.530869][ T3605] RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 [ 42.538926][ T3605] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 42.546889][ T3605] R13: ffff8880000001e8 R14: 0000000000000000 R15: 000000002063e000 [ 42.554857][ T3605] ? change_protection+0x16e9/0x4280 [ 42.560146][ T3605] ? change_protection+0x16e9/0x4280 [ 42.565448][ T3605] ? prot_none_hugetlb_entry+0x100/0x100 [ 42.571094][ T3605] ? lock_release+0x780/0x780 [ 42.575769][ T3605] uffd_wp_range+0xf0/0x180 [ 42.580271][ T3605] ? mcopy_continue+0x16d0/0x16d0 [ 42.585295][ T3605] ? vmacache_find+0x62/0x330 [ 42.589974][ T3605] mwriteprotect_range+0x2ea/0x420 [ 42.595170][ T3605] userfaultfd_ioctl+0x438/0x43a0 [ 42.600196][ T3605] ? do_vfs_ioctl+0x132/0x15c0 [ 42.604973][ T3605] ? vfs_fileattr_set+0xbe0/0xbe0 [ 42.609991][ T3605] ? userfaultfd_release+0x660/0x660 [ 42.615277][ T3605] ? find_held_lock+0x2d/0x110 [ 42.620035][ T3605] ? calibrate_delay+0x270/0x1120 [ 42.625056][ T3605] ? lock_downgrade+0x6e0/0x6e0 [ 42.629925][ T3605] ? _raw_spin_unlock_irq+0x1f/0x40 [ 42.635120][ T3605] ? bpf_lsm_file_ioctl+0x5/0x10 [ 42.640052][ T3605] ? userfaultfd_release+0x660/0x660 [ 42.645334][ T3605] __x64_sys_ioctl+0x193/0x200 [ 42.650094][ T3605] do_syscall_64+0x35/0xb0 [ 42.654509][ T3605] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 42.660398][ T3605] RIP: 0033:0x7fc1b3c85bb9 [ 42.664823][ T3605] 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 [ 42.684425][ T3605] RSP: 002b:00007ffe0d6e5ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.692834][ T3605] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc1b3c85bb9 [ 42.700803][ T3605] RDX: 00000000200000c0 RSI: 00000000c018aa06 RDI: 0000000000000003 [ 42.708766][ T3605] RBP: 00007fc1b3c49d60 R08: 0000000000000000 R09: 0000000000000000 [ 42.716730][ T3605] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc1b3c49df0 [ 42.724693][ T3605] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 42.732667][ T3605] [ 42.736556][ T3605] Kernel Offset: disabled [ 42.740946][ T3605] Rebooting in 86400 seconds..