./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1162385027

<...>
Warning: Permanently added '10.128.0.222' (ED25519) to the list of known hosts.
execve("./syz-executor1162385027", ["./syz-executor1162385027"], 0x7ffdd0629640 /* 10 vars */) = 0
brk(NULL)                               = 0x555557350000
brk(0x555557350d00)                     = 0x555557350d00
arch_prctl(ARCH_SET_FS, 0x555557350380) = 0
set_tid_address(0x555557350650)         = 4980
set_robust_list(0x555557350660, 24)     = 0
rseq(0x555557350ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1162385027", 4096) = 28
getrandom("\x5b\x9d\x78\xf7\x4a\x38\xa8\xf0", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555557350d00
brk(0x555557371d00)                     = 0x555557371d00
brk(0x555557372000)                     = 0x555557372000
mprotect(0x7f796436b000, 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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555557350650) = 4981
./strace-static-x86_64: Process 4981 attached
[pid  4981] set_robust_list(0x555557350660, 24) = 0
[pid  4981] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4981] setpgid(0, 0)               = 0
[pid  4981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4981] write(3, "1000", 4)         = 4
[pid  4981] close(3)                    = 0
[pid  4981] openat(AT_FDCWD, "/dev/dri/card1", O_RDONLY) = 3
[pid  4981] openat(AT_FDCWD, "/dev/dri/card1", O_RDONLY) = 4
[pid  4981] ioctl(4, DRM_IOCTL_MODE_GETRESOURCES, 0x20000140) = 0
[pid  4981] openat(AT_FDCWD, "/dev/dri/card1", O_RDONLY) = 5
[pid  4981] ioctl(5, DRM_IOCTL_MODE_GETRESOURCES, 0x20000140) = 0
[pid  4981] ioctl(5, DRM_IOCTL_MODE_GETCRTC, 0x20000480) = 0
[  158.656558][ T4981] =====================================================
[  158.663899][ T4981] BUG: KMSAN: uninit-value in drm_mode_setcrtc+0x1ad3/0x24a0
[  158.671592][ T4981]  drm_mode_setcrtc+0x1ad3/0x24a0
[  158.676828][ T4981]  drm_ioctl_kernel+0x5ae/0x730
[  158.682102][ T4981]  drm_ioctl+0xd12/0x1590
[  158.686641][ T4981]  __se_sys_ioctl+0x225/0x410
[  158.691545][ T4981]  __x64_sys_ioctl+0x96/0xe0
[  158.696331][ T4981]  do_syscall_64+0x41/0xc0
[  158.701119][ T4981]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  158.707181][ T4981] 
[  158.709560][ T4981] Uninit was created at:
[  158.714100][ T4981]  slab_post_alloc_hook+0x12f/0xb70
[  158.719504][ T4981]  __kmem_cache_alloc_node+0x536/0x8d0
[  158.725223][ T4981]  __kmalloc+0x121/0x3c0
[  158.729673][ T4981]  drm_mode_setcrtc+0x1dba/0x24a0
[  158.735068][ T4981]  drm_ioctl_kernel+0x5ae/0x730
[  158.740170][ T4981]  drm_ioctl+0xd12/0x1590
[  158.744695][ T4981]  __se_sys_ioctl+0x225/0x410
[  158.749558][ T4981]  __x64_sys_ioctl+0x96/0xe0
[  158.754392][ T4981]  do_syscall_64+0x41/0xc0
[  158.758987][ T4981]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  158.765197][ T4981] 
[  158.767614][ T4981] CPU: 0 PID: 4981 Comm: syz-executor116 Not tainted 6.6.0-rc6-syzkaller-00039-g06dc10eae55b #0
[  158.778287][ T4981] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
[  158.788587][ T4981] =====================================================
[  158.795811][ T4981] Disabling lock debugging due to kernel taint
[  158.802164][ T4981] Kernel panic - not syncing: kmsan.panic set ...
[  158.808709][ T4981] CPU: 0 PID: 4981 Comm: syz-executor116 Tainted: G    B              6.6.0-rc6-syzkaller-00039-g06dc10eae55b #0
[  158.820773][ T4981] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
[  158.830977][ T4981] Call Trace:
[  158.834359][ T4981]  <TASK>
[  158.837393][ T4981]  dump_stack_lvl+0x1bf/0x240
[  158.842276][ T4981]  dump_stack+0x1e/0x20
[  158.846614][ T4981]  panic+0x4d5/0xc70
[  158.850775][ T4981]  ? add_taint+0x108/0x1a0
[  158.855360][ T4981]  kmsan_report+0x2d0/0x2d0
[  158.860069][ T4981]  ? __msan_warning+0x96/0x110
[  158.865018][ T4981]  ? drm_mode_setcrtc+0x1ad3/0x24a0
[  158.870438][ T4981]  ? drm_ioctl_kernel+0x5ae/0x730
[  158.875671][ T4981]  ? drm_ioctl+0xd12/0x1590
[  158.880293][ T4981]  ? __se_sys_ioctl+0x225/0x410
[  158.885268][ T4981]  ? __x64_sys_ioctl+0x96/0xe0
[  158.890173][ T4981]  ? do_syscall_64+0x41/0xc0
[  158.894911][ T4981]  ? entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  158.901157][ T4981]  ? kmsan_get_shadow_origin_ptr+0x4d/0xa0
[  158.907125][ T4981]  ? ___drm_dbg+0x11c/0x2b0
[  158.911838][ T4981]  ? kmsan_internal_set_shadow_origin+0x66/0xe0
[  158.918301][ T4981]  ? drm_fb_release+0x860/0x860
[  158.923322][ T4981]  ? kmsan_internal_unpoison_memory+0x14/0x20
[  158.929567][ T4981]  ? kmsan_get_shadow_origin_ptr+0x4d/0xa0
[  158.935520][ T4981]  __msan_warning+0x96/0x110
[  158.940327][ T4981]  drm_mode_setcrtc+0x1ad3/0x24a0
[  158.945577][ T4981]  ? drm_crtc_check_viewport+0x2b0/0x2b0
[  158.951380][ T4981]  drm_ioctl_kernel+0x5ae/0x730
[  158.956454][ T4981]  ? drm_crtc_check_viewport+0x2b0/0x2b0
[  158.962381][ T4981]  drm_ioctl+0xd12/0x1590
[  158.966887][ T4981]  ? drm_crtc_check_viewport+0x2b0/0x2b0
[  158.972714][ T4981]  ? kmsan_get_shadow_origin_ptr+0x4d/0xa0
[  158.978708][ T4981]  ? drm_ioctl_kernel+0x730/0x730
[  158.983890][ T4981]  __se_sys_ioctl+0x225/0x410
[  158.988803][ T4981]  __x64_sys_ioctl+0x96/0xe0
[  158.993606][ T4981]  do_syscall_64+0x41/0xc0
[  158.998209][ T4981]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  159.004284][ T4981] RIP: 0033:0x7f79642f8b39
[  159.008781][ T4981] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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
[  159.028541][ T4981] RSP: 002b:00007fff9cb7e3b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  159.037149][ T4981] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f79642f8b39
[  159.045310][ T4981] RDX: 0000000020000200 RSI: 00000000c06864a2 RDI: 0000000000000003
[  159.053395][ T4981] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
[  159.061482][ T4981] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000000
[  159.069595][ T4981] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
[  159.077718][ T4981]  </TASK>
[  159.081233][ T4981] Kernel Offset: disabled
[  159.085634][ T4981] Rebooting in 86400 seconds..