./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1979763682
<...>
Warning: Permanently added '10.128.10.25' (ED25519) to the list of known hosts.
execve("./syz-executor1979763682", ["./syz-executor1979763682"], 0x7ffcc5a5a010 /* 10 vars */) = 0
brk(NULL) = 0x5555780c3000
brk(0x5555780c3d00) = 0x5555780c3d00
arch_prctl(ARCH_SET_FS, 0x5555780c3380) = 0
set_tid_address(0x5555780c3650) = 5823
set_robust_list(0x5555780c3660, 24) = 0
rseq(0x5555780c3ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1979763682", 4096) = 28
getrandom("\x49\xad\xb4\xa6\x7f\x60\x06\xf1", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x5555780c3d00
brk(0x5555780e4d00) = 0x5555780e4d00
brk(0x5555780e5000) = 0x5555780e5000
mprotect(0x7f1cdcafc000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
executing program
write(1, "executing program\n", 18) = 18
memfd_create("syzkaller", 0) = 3
mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1cd4600000
write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
munmap(0x7f1cd4600000, 138412032) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
ioctl(4, LOOP_SET_FD, 3) = 0
close(3) = 0
close(4) = 0
mkdir("./file0", 0777) = 0
[ 72.621594][ T5823] loop0: detected capacity change from 0 to 512
[ 72.643669][ T5823] UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
[ 72.651143][ T5823] UDF-fs: Scanning with blocksize 512 failed
[ 72.658771][ T5823] UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
mount("/dev/loop0", "./file0", "udf", 0, "") = 0
openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
chdir("./file0") = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
open("./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_DIRECT|O_NOFOLLOW|O_NOATIME|FASYNC, 041) = 4
[ 72.666277][ T5823] UDF-fs: Scanning with blocksize 1024 failed
[ 72.673694][ T5823] UDF-fs: warning (device loop0): udf_load_vrs: No VRS found
[ 72.681213][ T5823] UDF-fs: Scanning with blocksize 2048 failed
[ 72.692900][ T5823] UDF-fs: error (device loop0): udf_read_tagged: read failed, block=256, location=256
[ 72.706234][ T5823] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
[ 72.723830][ T30] audit: type=1800 audit(1750792620.453:2): pid=5823 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor197" name="file1" dev="loop0" ino=36 res=0 errno=0
[ 72.736022][ T5823] ------------[ cut here ]------------
[ 72.749586][ T5823] WARNING: CPU: 0 PID: 5823 at fs/udf/truncate.c:224 udf_truncate_extents+0xd4c/0xec0
[ 72.759385][ T5823] Modules linked in:
[ 72.763666][ T5823] CPU: 0 UID: 0 PID: 5823 Comm: syz-executor197 Not tainted 6.16.0-rc3-syzkaller-00042-g78f4e737a53e #0 PREEMPT(full)
[ 72.776422][ T5823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 72.786772][ T5823] RIP: 0010:udf_truncate_extents+0xd4c/0xec0
[ 72.793097][ T5823] Code: 01 64 0f 48 3b 84 24 80 01 00 00 75 77 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 25 7d 8a fe 90 <0f> 0b 90 eb 88 44 89 e9 80 e1 07 38 c1 0f 8c e4 f3 ff ff 4c 89 ef
[ 72.813056][ T5823] RSP: 0018:ffffc90003f6f7c0 EFLAGS: 00010293
[ 72.819108][ T5823] RAX: ffffffff8335cefb RBX: 1ffff1100f1b00d4 RCX: ffff8880348f1e00
[ 72.827412][ T5823] RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000000
[ 72.835450][ T5823] RBP: ffffc90003f6f988 R08: ffff8880348f1e00 R09: 0000000000000002
[ 72.843442][ T5823] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
[ 72.851413][ T5823] R13: 0000000000000000 R14: 000000000000000a R15: 000000000000000a
[ 72.859439][ T5823] FS: 00005555780c3380(0000) GS:ffff888125c83000(0000) knlGS:0000000000000000
[ 72.868418][ T5823] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 72.875054][ T5823] CR2: 000055826575a000 CR3: 00000000779ac000 CR4: 00000000003526f0
[ 72.883059][ T5823] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 72.891123][ T5823] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 72.899157][ T5823] Call Trace:
[ 72.902442][ T5823]
[ 72.905410][ T5823] ? __pfx_udf_truncate_extents+0x10/0x10
[ 72.911144][ T5823] ? do_raw_spin_unlock+0x122/0x240
[ 72.916385][ T5823] udf_write_failed+0x185/0x1c0
[ 72.921244][ T5823] udf_direct_IO+0x1c6/0x200
[ 72.925869][ T5823] generic_file_direct_write+0x1d8/0x3e0
[ 72.931504][ T5823] ? file_update_time+0x416/0x490
[ 72.936579][ T5823] __generic_file_write_iter+0x11d/0x230
[ 72.942214][ T5823] ? udf_file_write_iter+0x2c4/0x6c0
[ 72.947580][ T5823] udf_file_write_iter+0x2d5/0x6c0
[ 72.952747][ T5823] do_iter_readv_writev+0x56e/0x7f0
[ 72.957939][ T5823] ? __pfx_do_iter_readv_writev+0x10/0x10
[ 72.963671][ T5823] ? rcu_read_lock_any_held+0xb3/0x120
[ 72.969145][ T5823] vfs_writev+0x31a/0x960
[ 72.973517][ T5823] ? __pfx_vfs_writev+0x10/0x10
[ 72.978369][ T5823] ? _raw_spin_lock_irq+0xae/0xf0
[ 72.983449][ T5823] ? _raw_spin_unlock_irq+0x2e/0x50
[ 72.988656][ T5823] __se_sys_pwritev2+0x179/0x290
[ 72.993635][ T5823] ? __pfx___se_sys_pwritev2+0x10/0x10
[ 72.999096][ T5823] ? rcu_is_watching+0x15/0xb0
[ 73.003906][ T5823] ? __x64_sys_pwritev2+0x20/0xc0
[ 73.008955][ T5823] do_syscall_64+0xfa/0x3b0
[ 73.013508][ T5823] ? lockdep_hardirqs_on+0x9c/0x150
[ 73.018709][ T5823] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 73.024790][ T5823] ? clear_bhb_loop+0x60/0xb0
[ 73.029468][ T5823] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 73.035403][ T5823] RIP: 0033:0x7f1cdca886b9
[ 73.039828][ T5823] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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
[ 73.059485][ T5823] RSP: 002b:00007fff9a0954a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
[ 73.067922][ T5823] RAX: ffffffffffffffda RBX: 00007fff9a095688 RCX: 00007f1cdca886b9
[ 73.075930][ T5823] RDX: 0000000000000001 RSI: 0000200000000240 RDI: 0000000000000004
[ 73.083919][ T5823] RBP: 00007f1cdcafc610 R08: 0000000000000000 R09: 0000000000000003
[ 73.091873][ T5823] R10: 0000000000002000 R11: 0000000000000246 R12: 0000000000000001
[ 73.099873][ T5823] R13: 00007fff9a095678 R14: 0000000000000001 R15: 0000000000000001
[ 73.107868][ T5823]
[ 73.110878][ T5823] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 73.118138][ T5823] CPU: 0 UID: 0 PID: 5823 Comm: syz-executor197 Not tainted 6.16.0-rc3-syzkaller-00042-g78f4e737a53e #0 PREEMPT(full)
[ 73.130521][ T5823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 73.140552][ T5823] Call Trace:
[ 73.143811][ T5823]
[ 73.146723][ T5823] dump_stack_lvl+0x99/0x250
[ 73.151298][ T5823] ? __asan_memcpy+0x40/0x70
[ 73.155871][ T5823] ? __pfx_dump_stack_lvl+0x10/0x10
[ 73.161048][ T5823] ? __pfx__printk+0x10/0x10
[ 73.165632][ T5823] panic+0x2db/0x790
[ 73.169527][ T5823] ? __pfx_panic+0x10/0x10
[ 73.173936][ T5823] ? show_trace_log_lvl+0x4fb/0x550
[ 73.179140][ T5823] __warn+0x31b/0x4b0
[ 73.183114][ T5823] ? udf_truncate_extents+0xd4c/0xec0
[ 73.188481][ T5823] ? udf_truncate_extents+0xd4c/0xec0
[ 73.193839][ T5823] report_bug+0x2be/0x4f0
[ 73.198159][ T5823] ? udf_truncate_extents+0xd4c/0xec0
[ 73.203522][ T5823] ? udf_truncate_extents+0xd4c/0xec0
[ 73.208881][ T5823] ? udf_truncate_extents+0xd4e/0xec0
[ 73.214246][ T5823] handle_bug+0x84/0x160
[ 73.218474][ T5823] exc_invalid_op+0x1a/0x50
[ 73.222962][ T5823] asm_exc_invalid_op+0x1a/0x20
[ 73.227797][ T5823] RIP: 0010:udf_truncate_extents+0xd4c/0xec0
[ 73.233766][ T5823] Code: 01 64 0f 48 3b 84 24 80 01 00 00 75 77 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 25 7d 8a fe 90 <0f> 0b 90 eb 88 44 89 e9 80 e1 07 38 c1 0f 8c e4 f3 ff ff 4c 89 ef
[ 73.253360][ T5823] RSP: 0018:ffffc90003f6f7c0 EFLAGS: 00010293
[ 73.259415][ T5823] RAX: ffffffff8335cefb RBX: 1ffff1100f1b00d4 RCX: ffff8880348f1e00
[ 73.267373][ T5823] RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000000
[ 73.275331][ T5823] RBP: ffffc90003f6f988 R08: ffff8880348f1e00 R09: 0000000000000002
[ 73.283290][ T5823] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
[ 73.291245][ T5823] R13: 0000000000000000 R14: 000000000000000a R15: 000000000000000a
[ 73.299209][ T5823] ? udf_truncate_extents+0xd4b/0xec0
[ 73.304590][ T5823] ? __pfx_udf_truncate_extents+0x10/0x10
[ 73.310312][ T5823] ? do_raw_spin_unlock+0x122/0x240
[ 73.315502][ T5823] udf_write_failed+0x185/0x1c0
[ 73.320348][ T5823] udf_direct_IO+0x1c6/0x200
[ 73.324932][ T5823] generic_file_direct_write+0x1d8/0x3e0
[ 73.330555][ T5823] ? file_update_time+0x416/0x490
[ 73.335572][ T5823] __generic_file_write_iter+0x11d/0x230
[ 73.341190][ T5823] ? udf_file_write_iter+0x2c4/0x6c0
[ 73.346471][ T5823] udf_file_write_iter+0x2d5/0x6c0
[ 73.351574][ T5823] do_iter_readv_writev+0x56e/0x7f0
[ 73.356766][ T5823] ? __pfx_do_iter_readv_writev+0x10/0x10
[ 73.362472][ T5823] ? rcu_read_lock_any_held+0xb3/0x120
[ 73.367943][ T5823] vfs_writev+0x31a/0x960
[ 73.372276][ T5823] ? __pfx_vfs_writev+0x10/0x10
[ 73.377117][ T5823] ? _raw_spin_lock_irq+0xae/0xf0
[ 73.382153][ T5823] ? _raw_spin_unlock_irq+0x2e/0x50
[ 73.387345][ T5823] __se_sys_pwritev2+0x179/0x290
[ 73.392273][ T5823] ? __pfx___se_sys_pwritev2+0x10/0x10
[ 73.397717][ T5823] ? rcu_is_watching+0x15/0xb0
[ 73.402476][ T5823] ? __x64_sys_pwritev2+0x20/0xc0
[ 73.407495][ T5823] do_syscall_64+0xfa/0x3b0
[ 73.411989][ T5823] ? lockdep_hardirqs_on+0x9c/0x150
[ 73.417177][ T5823] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 73.423228][ T5823] ? clear_bhb_loop+0x60/0xb0
[ 73.427896][ T5823] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 73.433772][ T5823] RIP: 0033:0x7f1cdca886b9
[ 73.438174][ T5823] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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
[ 73.457764][ T5823] RSP: 002b:00007fff9a0954a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
[ 73.466164][ T5823] RAX: ffffffffffffffda RBX: 00007fff9a095688 RCX: 00007f1cdca886b9
[ 73.474123][ T5823] RDX: 0000000000000001 RSI: 0000200000000240 RDI: 0000000000000004
[ 73.482084][ T5823] RBP: 00007f1cdcafc610 R08: 0000000000000000 R09: 0000000000000003
[ 73.490042][ T5823] R10: 0000000000002000 R11: 0000000000000246 R12: 0000000000000001
[ 73.497996][ T5823] R13: 00007fff9a095678 R14: 0000000000000001 R15: 0000000000000001
[ 73.505965][ T5823]
[ 73.509200][ T5823] Kernel Offset: disabled
[ 73.513514][ T5823] Rebooting in 86400 seconds..