./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3015324746 <...> Warning: Permanently added '10.128.1.105' (ED25519) to the list of known hosts. execve("./syz-executor3015324746", ["./syz-executor3015324746"], 0x7ffd5a46fe50 /* 10 vars */) = 0 brk(NULL) = 0x555557375000 brk(0x555557375d00) = 0x555557375d00 arch_prctl(ARCH_SET_FS, 0x555557375380) = 0 set_tid_address(0x555557375650) = 5052 set_robust_list(0x555557375660, 24) = 0 rseq(0x555557375ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3015324746", 4096) = 28 getrandom("\x6f\x10\x70\x0d\xf3\x80\x0c\x3b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555557375d00 brk(0x555557396d00) = 0x555557396d00 brk(0x555557397000) = 0x555557397000 mprotect(0x7fdde3237000, 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 [ 86.411381][ T28] audit: type=1400 audit(1705482606.018:86): avc: denied { execmem } for pid=5052 comm="syz-executor301" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 86.432290][ T28] audit: type=1400 audit(1705482606.038:87): avc: denied { read } for pid=5052 comm="syz-executor301" name="card1" dev="devtmpfs" ino=630 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dri_device_t tclass=chr_file permissive=1 ioctl(5, DRM_IOCTL_MODE_GETRESOURCES, 0x20000200) = 0 ioctl(5, DRM_IOCTL_MODE_GETCRTC, 0x20000080) = 0 [ 86.455873][ T28] audit: type=1400 audit(1705482606.038:88): avc: denied { open } for pid=5052 comm="syz-executor301" path="/dev/dri/card1" dev="devtmpfs" ino=630 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dri_device_t tclass=chr_file permissive=1 [ 86.479972][ T28] audit: type=1400 audit(1705482606.058:89): avc: denied { ioctl } for pid=5052 comm="syz-executor301" path="/dev/dri/card1" dev="devtmpfs" ino=630 ioctlcmd=0x64a0 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dri_device_t tclass=chr_file permissive=1 [ 86.488054][ T5052] divide error: 0000 [#1] PREEMPT SMP KASAN [ 86.511227][ T5052] CPU: 0 PID: 5052 Comm: syz-executor301 Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 [ 86.521301][ T5052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 86.531352][ T5052] RIP: 0010:drm_mode_vrefresh+0x199/0x200 [ 86.537115][ T5052] Code: 89 de e8 aa d9 8e fc 66 83 fb 01 76 08 e8 4f de 8e fc 0f af eb e8 47 de 8e fc 4d 69 e4 e8 03 00 00 89 e8 31 d2 d1 e8 4c 01 e0 <48> f7 f5 48 89 c3 e8 2c de 8e fc 89 d8 5b 5d 41 5c 41 5d 41 5e c3 [ 86.556725][ T5052] RSP: 0018:ffffc9000345f9e0 EFLAGS: 00010206 [ 86.562801][ T5052] RAX: 000000000001f400 RBX: 0000000000000400 RCX: ffffffff84f81af6 [ 86.570775][ T5052] RDX: 0000000000000000 RSI: ffffffff84f81b09 RDI: 0000000000000003 [ 86.578748][ T5052] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000001 [ 86.586728][ T5052] R10: 0000000000000400 R11: ffffffff81ddd204 R12: 000000000001f400 [ 86.594709][ T5052] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000008 [ 86.602687][ T5052] FS: 0000555557375380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 86.611619][ T5052] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.618301][ T5052] CR2: 00000000005fdeb8 CR3: 000000007b190000 CR4: 00000000003506f0 [ 86.626276][ T5052] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.634249][ T5052] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 86.642223][ T5052] Call Trace: [ 86.645498][ T5052] [ 86.648430][ T5052] ? show_regs+0x8f/0xa0 [ 86.652701][ T5052] ? die+0x36/0xa0 [ 86.656437][ T5052] ? do_trap+0x22b/0x420 [ 86.660713][ T5052] ? drm_mode_vrefresh+0x199/0x200 [ 86.665849][ T5052] ? drm_mode_vrefresh+0x199/0x200 [ 86.670972][ T5052] ? do_error_trap+0xf4/0x230 [ 86.675669][ T5052] ? drm_mode_vrefresh+0x199/0x200 [ 86.680793][ T5052] ? exc_divide_error+0x39/0x50 [ 86.685661][ T5052] ? drm_mode_vrefresh+0x199/0x200 [ 86.690785][ T5052] ? asm_exc_divide_error+0x1a/0x20 [ 86.696007][ T5052] ? kasan_save_track+0x14/0x30 [ 86.700875][ T5052] ? drm_mode_vrefresh+0x176/0x200 [ 86.706000][ T5052] ? drm_mode_vrefresh+0x189/0x200 [ 86.711126][ T5052] ? drm_mode_vrefresh+0x199/0x200 [ 86.716264][ T5052] drm_mode_debug_printmodeline+0x233/0x300 [ 86.722177][ T5052] drm_mode_setcrtc+0x11ce/0x1680 [ 86.727230][ T5052] ? avc_has_extended_perms+0x88e/0xf70 [ 86.732804][ T5052] ? drm_mode_getcrtc+0x770/0x770 [ 86.737841][ T5052] ? rcu_is_watching+0x12/0xb0 [ 86.742623][ T5052] ? spin_bug+0x1d0/0x1d0 [ 86.746974][ T5052] ? rcu_is_watching+0x12/0xb0 [ 86.751750][ T5052] ? lock_release+0x4bf/0x690 [ 86.756444][ T5052] ? do_raw_spin_unlock+0x173/0x230 [ 86.761661][ T5052] drm_ioctl_kernel+0x1e8/0x3d0 [ 86.766540][ T5052] ? drm_mode_getcrtc+0x770/0x770 [ 86.771603][ T5052] ? drm_setversion+0x870/0x870 [ 86.776460][ T5052] drm_ioctl+0x5d4/0xc00 [ 86.780706][ T5052] ? drm_mode_getcrtc+0x770/0x770 [ 86.785739][ T5052] ? drm_ioctl_kernel+0x3d0/0x3d0 [ 86.790776][ T5052] ? selinux_file_ioctl+0xb5/0x270 [ 86.795905][ T5052] ? drm_ioctl_kernel+0x3d0/0x3d0 [ 86.800941][ T5052] __x64_sys_ioctl+0x18f/0x210 [ 86.805733][ T5052] do_syscall_64+0xd3/0x250 [ 86.810249][ T5052] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 86.816177][ T5052] RIP: 0033:0x7fdde31c4729 [ 86.820593][ T5052] 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 [ 86.840299][ T5052] RSP: 002b:00007ffecd041548 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 86.848729][ T5052] RAX: ffffffffffffffda RBX: 00007ffecd041718 RCX: 00007fdde31c4729 [ 86.856710][ T5052] RDX: 0000000020000180 RSI: 00000000c06864a2 RDI: 0000000000000003 [ 86.864707][ T5052] RBP: 00007fdde3237610 R08: 00000000fffff4e6 R09: 00007ffecd041718 [ 86.872685][ T5052] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000001 [ 86.880660][ T5052] R13: 00007ffecd041708 R14: 0000000000000001 R15: 0000000000000001 [ 86.888638][ T5052] [ 86.891686][ T5052] Modules linked in: [ 86.895759][ T5052] ---[ end trace 0000000000000000 ]--- [ 86.902643][ T5052] RIP: 0010:drm_mode_vrefresh+0x199/0x200 [ 86.908430][ T5052] Code: 89 de e8 aa d9 8e fc 66 83 fb 01 76 08 e8 4f de 8e fc 0f af eb e8 47 de 8e fc 4d 69 e4 e8 03 00 00 89 e8 31 d2 d1 e8 4c 01 e0 <48> f7 f5 48 89 c3 e8 2c de 8e fc 89 d8 5b 5d 41 5c 41 5d 41 5e c3 [ 86.928075][ T5052] RSP: 0018:ffffc9000345f9e0 EFLAGS: 00010206 [ 86.934154][ T5052] RAX: 000000000001f400 RBX: 0000000000000400 RCX: ffffffff84f81af6 [ 86.942176][ T5052] RDX: 0000000000000000 RSI: ffffffff84f81b09 RDI: 0000000000000003 [ 86.950207][ T5052] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000001 [ 86.958244][ T5052] R10: 0000000000000400 R11: ffffffff81ddd204 R12: 000000000001f400 [ 86.966232][ T5052] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000008 [ 86.974341][ T5052] FS: 0000555557375380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 86.983405][ T5052] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.990039][ T5052] CR2: 00000000005fdeb8 CR3: 000000007b190000 CR4: 00000000003506f0 [ 86.998096][ T5052] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 87.006108][ T5052] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 87.014436][ T5052] Kernel panic - not syncing: Fatal exception [ 87.020816][ T5052] Kernel Offset: disabled [ 87.025134][ T5052] Rebooting in 86400 seconds..