./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3933101231 <...> Warning: Permanently added '10.128.0.15' (ECDSA) to the list of known hosts. execve("./syz-executor3933101231", ["./syz-executor3933101231"], 0x7ffe61f47170 /* 10 vars */) = 0 brk(NULL) = 0x555555d6a000 brk(0x555555d6ac40) = 0x555555d6ac40 arch_prctl(ARCH_SET_FS, 0x555555d6a300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3933101231", 4096) = 28 brk(0x555555d8bc40) = 0x555555d8bc40 brk(0x555555d8c000) = 0x555555d8c000 mprotect(0x7fa652c73000, 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/vim2m", O_RDWR) = 3 ioctl(3, VIDIOC_REQBUFS, {type=V4L2_BUF_TYPE_VIDEO_OUTPUT, memory=V4L2_MEMORY_USERPTR, count=4294967264 => 27}) = 0 [ 63.913616][ T4994] ------------[ cut here ]------------ [ 63.919240][ T4994] get_vaddr_frames() cannot follow VM_IO mapping [ 63.919744][ T4994] WARNING: CPU: 0 PID: 4994 at drivers/media/common/videobuf2/frame_vector.c:63 get_vaddr_frames+0x1fb/0x240 [ 63.937762][ T4994] Modules linked in: [ 63.941657][ T4994] CPU: 0 PID: 4994 Comm: syz-executor393 Not tainted 6.3.0-syzkaller-13466-gfc4354c6e5c2 #0 [ 63.951851][ T4994] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 63.961965][ T4994] RIP: 0010:get_vaddr_frames+0x1fb/0x240 [ 63.967673][ T4994] Code: 8c 11 ff ff ff 4c 89 ef e8 62 7f b9 fa e9 04 ff ff ff e8 f8 b0 61 fa c6 05 59 b6 17 07 01 48 c7 c7 c0 c3 9e 8b e8 b5 38 29 fa <0f> 0b e9 4b ff ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 1f ff [ 63.987352][ T4994] RSP: 0018:ffffc90003b0f5c8 EFLAGS: 00010246 [ 63.993504][ T4994] RAX: 3a497a74fd702e00 RBX: 1ffff11002bebe00 RCX: ffff88802bfabb80 [ 64.001507][ T4994] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 64.009624][ T4994] RBP: dffffc0000000000 R08: ffffffff8152f1a2 R09: ffffed1017305163 [ 64.017653][ T4994] R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000fffffff2 [ 64.025803][ T4994] R13: ffff888015f5f004 R14: 0000000000000000 R15: 0000000000000000 [ 64.033934][ T4994] FS: 0000555555d6a300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 64.042869][ T4994] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.049539][ T4994] CR2: 00000000005fdeb8 CR3: 0000000022e3e000 CR4: 00000000003506f0 [ 64.057581][ T4994] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.065632][ T4994] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.073675][ T4994] Call Trace: [ 64.076958][ T4994] [ 64.079982][ T4994] vb2_create_framevec+0x55/0xc0 [ 64.085010][ T4994] vb2_vmalloc_get_userptr+0x100/0x410 [ 64.090510][ T4994] ? __fill_vb2_buffer+0x455/0x4b0 [ 64.095715][ T4994] ? vb2_vmalloc_get_dmabuf+0x250/0x250 [ 64.101300][ T4994] __buf_prepare+0xc26/0x4460 [ 64.106093][ T4994] ? is_bpf_text_address+0x253/0x270 [ 64.111435][ T4994] ? vb2_core_prepare_buf+0x310/0x310 [ 64.116915][ T4994] ? mark_lock+0x9a/0x340 [ 64.121304][ T4994] ? validate_chain+0x119/0x58e0 [ 64.126367][ T4994] ? __lock_acquire+0x1295/0x2000 [ 64.131467][ T4994] ? read_lock_is_recursive+0x20/0x20 [ 64.137046][ T4994] ? vb2_queue_or_prepare_buf+0x5be/0xe20 [ 64.142797][ T4994] vb2_core_prepare_buf+0xe6/0x310 [ 64.147992][ T4994] v4l2_m2m_ioctl_prepare_buf+0x19b/0x470 [ 64.153760][ T4994] ? v4l_prepare_buf+0x6c/0xc0 [ 64.158535][ T4994] __video_do_ioctl+0xa3e/0xe40 [ 64.163478][ T4994] ? video_ioctl2+0x30/0x30 [ 64.168004][ T4994] ? smack_log+0x123/0x540 [ 64.172438][ T4994] ? __might_fault+0xba/0x120 [ 64.177182][ T4994] video_usercopy+0x894/0x1170 [ 64.182005][ T4994] ? video_ioctl2+0x30/0x30 [ 64.186596][ T4994] ? v4l_printk_ioctl+0x160/0x160 [ 64.191642][ T4994] ? smack_file_ioctl+0x2ee/0x390 [ 64.196737][ T4994] ? do_notify_parent+0xf50/0xf50 [ 64.201787][ T4994] ? print_irqtrace_events+0x220/0x220 [ 64.207342][ T4994] v4l2_ioctl+0x185/0x1d0 [ 64.212059][ T4994] ? v4l2_poll+0x2b0/0x2b0 [ 64.216531][ T4994] __se_sys_ioctl+0xf1/0x160 [ 64.221185][ T4994] do_syscall_64+0x41/0xc0 [ 64.225693][ T4994] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 64.231617][ T4994] RIP: 0033:0x7fa652c06c49 [ 64.236120][ T4994] 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 [ 64.255818][ T4994] RSP: 002b:00007fff89590468 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 64.264294][ T4994] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa652c06c49 [ 64.272312][ T4994] RDX: 0000000020000300 RSI: 00000000c058565d RDI: 0000000000000003 [ 64.280450][ T4994] RBP: 00007fa652bcadf0 R08: 0000000000000000 R09: 0000000000000000 [ 64.288509][ T4994] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa652bcae80 [ 64.296553][ T4994] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 64.304667][ T4994] [ 64.307697][ T4994] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 64.314970][ T4994] CPU: 0 PID: 4994 Comm: syz-executor393 Not tainted 6.3.0-syzkaller-13466-gfc4354c6e5c2 #0 [ 64.325029][ T4994] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 64.335090][ T4994] Call Trace: [ 64.338366][ T4994] [ 64.341300][ T4994] dump_stack_lvl+0x1e7/0x2d0 [ 64.346039][ T4994] ? nf_tcp_handle_invalid+0x650/0x650 [ 64.351504][ T4994] ? panic+0x770/0x770 [ 64.355577][ T4994] ? vscnprintf+0x5d/0x80 [ 64.359912][ T4994] panic+0x30f/0x770 [ 64.363811][ T4994] ? __warn+0x171/0x4a0 [ 64.367975][ T4994] ? __memcpy_flushcache+0x2b0/0x2b0 [ 64.373283][ T4994] __warn+0x314/0x4a0 [ 64.377632][ T4994] ? get_vaddr_frames+0x1fb/0x240 [ 64.382664][ T4994] report_bug+0x2b3/0x500 [ 64.387002][ T4994] ? get_vaddr_frames+0x1fb/0x240 [ 64.392036][ T4994] handle_bug+0x3d/0x70 [ 64.396196][ T4994] exc_invalid_op+0x1a/0x50 [ 64.400705][ T4994] asm_exc_invalid_op+0x1a/0x20 [ 64.405564][ T4994] RIP: 0010:get_vaddr_frames+0x1fb/0x240 [ 64.411208][ T4994] Code: 8c 11 ff ff ff 4c 89 ef e8 62 7f b9 fa e9 04 ff ff ff e8 f8 b0 61 fa c6 05 59 b6 17 07 01 48 c7 c7 c0 c3 9e 8b e8 b5 38 29 fa <0f> 0b e9 4b ff ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 1f ff [ 64.430822][ T4994] RSP: 0018:ffffc90003b0f5c8 EFLAGS: 00010246 [ 64.436905][ T4994] RAX: 3a497a74fd702e00 RBX: 1ffff11002bebe00 RCX: ffff88802bfabb80 [ 64.444885][ T4994] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 64.452859][ T4994] RBP: dffffc0000000000 R08: ffffffff8152f1a2 R09: ffffed1017305163 [ 64.460853][ T4994] R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000fffffff2 [ 64.468836][ T4994] R13: ffff888015f5f004 R14: 0000000000000000 R15: 0000000000000000 [ 64.476998][ T4994] ? __warn_printk+0x292/0x360 [ 64.481879][ T4994] ? get_vaddr_frames+0x1fb/0x240 [ 64.486925][ T4994] vb2_create_framevec+0x55/0xc0 [ 64.491873][ T4994] vb2_vmalloc_get_userptr+0x100/0x410 [ 64.497349][ T4994] ? __fill_vb2_buffer+0x455/0x4b0 [ 64.502502][ T4994] ? vb2_vmalloc_get_dmabuf+0x250/0x250 [ 64.508062][ T4994] __buf_prepare+0xc26/0x4460 [ 64.512780][ T4994] ? is_bpf_text_address+0x253/0x270 [ 64.518089][ T4994] ? vb2_core_prepare_buf+0x310/0x310 [ 64.523490][ T4994] ? mark_lock+0x9a/0x340 [ 64.527830][ T4994] ? validate_chain+0x119/0x58e0 [ 64.532783][ T4994] ? __lock_acquire+0x1295/0x2000 [ 64.537847][ T4994] ? read_lock_is_recursive+0x20/0x20 [ 64.543270][ T4994] ? vb2_queue_or_prepare_buf+0x5be/0xe20 [ 64.549005][ T4994] vb2_core_prepare_buf+0xe6/0x310 [ 64.554138][ T4994] v4l2_m2m_ioctl_prepare_buf+0x19b/0x470 [ 64.559865][ T4994] ? v4l_prepare_buf+0x6c/0xc0 [ 64.564657][ T4994] __video_do_ioctl+0xa3e/0xe40 [ 64.569535][ T4994] ? video_ioctl2+0x30/0x30 [ 64.574045][ T4994] ? smack_log+0x123/0x540 [ 64.578478][ T4994] ? __might_fault+0xba/0x120 [ 64.583175][ T4994] video_usercopy+0x894/0x1170 [ 64.587968][ T4994] ? video_ioctl2+0x30/0x30 [ 64.592490][ T4994] ? v4l_printk_ioctl+0x160/0x160 [ 64.597616][ T4994] ? smack_file_ioctl+0x2ee/0x390 [ 64.602659][ T4994] ? do_notify_parent+0xf50/0xf50 [ 64.607696][ T4994] ? print_irqtrace_events+0x220/0x220 [ 64.613166][ T4994] v4l2_ioctl+0x185/0x1d0 [ 64.617510][ T4994] ? v4l2_poll+0x2b0/0x2b0 [ 64.621940][ T4994] __se_sys_ioctl+0xf1/0x160 [ 64.626553][ T4994] do_syscall_64+0x41/0xc0 [ 64.630988][ T4994] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 64.636890][ T4994] RIP: 0033:0x7fa652c06c49 [ 64.641319][ T4994] 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 [ 64.661014][ T4994] RSP: 002b:00007fff89590468 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 64.669435][ T4994] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa652c06c49 [ 64.677415][ T4994] RDX: 0000000020000300 RSI: 00000000c058565d RDI: 0000000000000003 [ 64.685409][ T4994] RBP: 00007fa652bcadf0 R08: 0000000000000000 R09: 0000000000000000 [ 64.693418][ T4994] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa652bcae80 [ 64.701403][ T4994] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 64.709404][ T4994] [ 64.712697][ T4994] Kernel Offset: disabled [ 64.717110][ T4994] Rebooting in 86400 seconds..