./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4207968879 <...> Warning: Permanently added '10.128.1.105' (ED25519) to the list of known hosts. execve("./syz-executor4207968879", ["./syz-executor4207968879"], 0x7ffd2637e8f0 /* 10 vars */) = 0 brk(NULL) = 0x555556840000 brk(0x555556840d00) = 0x555556840d00 arch_prctl(ARCH_SET_FS, 0x555556840380) = 0 set_tid_address(0x555556840650) = 5043 set_robust_list(0x555556840660, 24) = 0 rseq(0x555556840ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4207968879", 4096) = 28 getrandom("\x27\xa1\x39\xb3\x70\x1a\xc9\x69", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556840d00 brk(0x555556861d00) = 0x555556861d00 brk(0x555556862000) = 0x555556862000 mprotect(0x7f2c8d6d4000, 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/dri/card1", O_RDONLY) = 3 openat(AT_FDCWD, "/dev/dri/card1", O_RDONLY) = 4 ioctl(4, DRM_IOCTL_MODE_GETRESOURCES, 0x20000200) = 0 openat(AT_FDCWD, "/dev/dri/card1", O_RDONLY) = 5 ioctl(5, DRM_IOCTL_MODE_GETRESOURCES, 0x20000200) = 0 ioctl(5, DRM_IOCTL_MODE_GETCRTC, 0x20000080) = 0 [ 89.719486][ T5043] divide error: 0000 [#1] PREEMPT SMP KASAN [ 89.725441][ T5043] CPU: 0 PID: 5043 Comm: syz-executor420 Not tainted 6.5.0-next-20230828-syzkaller #0 [ 89.735017][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 89.745080][ T5043] RIP: 0010:drm_mode_vrefresh+0x199/0x200 [ 89.750913][ T5043] Code: 89 de e8 9a a3 d2 fc 66 83 fb 01 76 08 e8 3f a8 d2 fc 0f af eb e8 37 a8 d2 fc 4d 69 e4 e8 03 00 00 89 e8 31 d2 d1 e8 4c 01 e0 <48> f7 f5 48 89 c3 e8 1c a8 d2 fc 89 d8 5b 5d 41 5c 41 5d 41 5e c3 [ 89.770622][ T5043] RSP: 0018:ffffc900039dfa00 EFLAGS: 00010206 [ 89.776699][ T5043] RAX: 000000000001f400 RBX: 0000000000000400 RCX: 0000000000000000 [ 89.784681][ T5043] RDX: 0000000000000000 RSI: ffffffff84b529b9 RDI: 0000000000000003 [ 89.792669][ T5043] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000001 [ 89.800657][ T5043] R10: 0000000000000400 R11: ffffffff8a3e5df8 R12: 000000000001f400 [ 89.808661][ T5043] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000008 [ 89.816649][ T5043] FS: 0000555556840380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 89.825625][ T5043] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.832232][ T5043] CR2: 00000000005fdeb8 CR3: 0000000021116000 CR4: 00000000003506f0 [ 89.840221][ T5043] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.848209][ T5043] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.856195][ T5043] Call Trace: [ 89.859512][ T5043] [ 89.862458][ T5043] ? show_regs+0x8f/0xa0 [ 89.866728][ T5043] ? die+0x36/0xa0 [ 89.870475][ T5043] ? do_trap+0x22b/0x420 [ 89.874749][ T5043] ? drm_mode_vrefresh+0x199/0x200 [ 89.879900][ T5043] ? drm_mode_vrefresh+0x199/0x200 [ 89.885038][ T5043] ? do_error_trap+0xf4/0x230 [ 89.889747][ T5043] ? drm_mode_vrefresh+0x199/0x200 [ 89.894889][ T5043] ? exc_divide_error+0x38/0x50 [ 89.899758][ T5043] ? drm_mode_vrefresh+0x199/0x200 [ 89.904910][ T5043] ? asm_exc_divide_error+0x1a/0x20 [ 89.910131][ T5043] ? do_syscall_64+0x38/0xb0 [ 89.914760][ T5043] ? drm_mode_vrefresh+0x189/0x200 [ 89.919911][ T5043] ? drm_mode_vrefresh+0x199/0x200 [ 89.925054][ T5043] drm_mode_debug_printmodeline+0x233/0x300 [ 89.930982][ T5043] drm_mode_setcrtc+0x1227/0x1700 [ 89.936044][ T5043] ? drm_mode_getcrtc+0x770/0x770 [ 89.941094][ T5043] ? trace_irq_enable.constprop.0+0xd0/0x100 [ 89.947102][ T5043] ? rcu_is_watching+0x12/0xb0 [ 89.951893][ T5043] ? spin_bug+0x1d0/0x1d0 [ 89.956256][ T5043] ? do_raw_spin_unlock+0x173/0x230 [ 89.961493][ T5043] drm_ioctl_kernel+0x280/0x4c0 [ 89.966380][ T5043] ? drm_mode_getcrtc+0x770/0x770 [ 89.971436][ T5043] ? drm_setversion+0x870/0x870 [ 89.976318][ T5043] drm_ioctl+0x5cb/0xbf0 [ 89.980593][ T5043] ? drm_mode_getcrtc+0x770/0x770 [ 89.985649][ T5043] ? drm_ioctl_kernel+0x4c0/0x4c0 [ 89.990699][ T5043] ? rcu_is_watching+0x12/0xb0 [ 89.995513][ T5043] ? bpf_lsm_file_ioctl+0x9/0x10 [ 90.000514][ T5043] ? drm_ioctl_kernel+0x4c0/0x4c0 [ 90.005566][ T5043] __x64_sys_ioctl+0x18f/0x210 [ 90.010351][ T5043] do_syscall_64+0x38/0xb0 [ 90.014814][ T5043] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 90.020794][ T5043] RIP: 0033:0x7f2c8d661729 [ 90.025239][ T5043] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 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 b8 ff ff ff f7 d8 64 89 01 48 [ 90.044867][ T5043] RSP: 002b:00007ffe1e620b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 90.053301][ T5043] RAX: ffffffffffffffda RBX: 00007ffe1e620cd8 RCX: 00007f2c8d661729 [ 90.061288][ T5043] RDX: 0000000020000180 RSI: 00000000c06864a2 RDI: 0000000000000003 [ 90.069275][ T5043] RBP: 00007f2c8d6d4610 R08: 00000000fffff4e6 R09: 00007ffe1e620cd8 [ 90.077267][ T5043] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000001 [ 90.085272][ T5043] R13: 00007ffe1e620cc8 R14: 0000000000000001 R15: 0000000000000001 [ 90.093270][ T5043] [ 90.096303][ T5043] Modules linked in: [ 90.100417][ T5043] ---[ end trace 0000000000000000 ]--- [ 90.105946][ T5043] RIP: 0010:drm_mode_vrefresh+0x199/0x200 [ 90.111763][ T5043] Code: 89 de e8 9a a3 d2 fc 66 83 fb 01 76 08 e8 3f a8 d2 fc 0f af eb e8 37 a8 d2 fc 4d 69 e4 e8 03 00 00 89 e8 31 d2 d1 e8 4c 01 e0 <48> f7 f5 48 89 c3 e8 1c a8 d2 fc 89 d8 5b 5d 41 5c 41 5d 41 5e c3 [ 90.131437][ T5043] RSP: 0018:ffffc900039dfa00 EFLAGS: 00010206 [ 90.137547][ T5043] RAX: 000000000001f400 RBX: 0000000000000400 RCX: 0000000000000000 [ 90.145775][ T5043] RDX: 0000000000000000 RSI: ffffffff84b529b9 RDI: 0000000000000003 [ 90.153878][ T5043] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000001 [ 90.162020][ T5043] R10: 0000000000000400 R11: ffffffff8a3e5df8 R12: 000000000001f400 [ 90.170007][ T5043] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000008 [ 90.178037][ T5043] FS: 0000555556840380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 90.187066][ T5043] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.193717][ T5043] CR2: 00005602c7ff30a8 CR3: 0000000021116000 CR4: 00000000003506e0 [ 90.201908][ T5043] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.210084][ T5043] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.218105][ T5043] Kernel panic - not syncing: Fatal exception [ 90.224524][ T5043] Kernel Offset: disabled [ 90.228849][ T5043] Rebooting in 86400 seconds..