./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4280960909
<...>
Warning: Permanently added '10.128.0.236' (ED25519) to the list of known hosts.
execve("./syz-executor4280960909", ["./syz-executor4280960909"], 0x7ffdab9f69f0 /* 10 vars */) = 0
brk(NULL) = 0x555564b95000
brk(0x555564b95e00) = 0x555564b95e00
arch_prctl(ARCH_SET_FS, 0x555564b95480) = 0
set_tid_address(0x555564b95750) = 5868
set_robust_list(0x555564b95760, 24) = 0
rseq(0x555564b95da0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor4280960909", 4096) = 28
getrandom("\x04\x54\xb1\x8c\xdc\xde\x4f\x5a", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555564b95e00
brk(0x555564bb6e00) = 0x555564bb6e00
brk(0x555564bb7000) = 0x555564bb7000
mprotect(0x7f49b3189000, 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
rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x7f49b30e0c80, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f49b30e8cb0}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f49b30e0c80, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f49b30e8cb0}, NULL, 8) = 0
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) = 0x7f49aac00000
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"..., 1048576) = 1048576
munmap(0x7f49aac00000, 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
syzkaller login: [ 78.315828][ T5868] loop0: detected capacity change from 0 to 2048
mount("/dev/loop0", "./file0", "udf", 0, "noadinicb,nostrict,mode=00000000000000000000004,uid=forget,noadinicb,umask=00000000000000040002000,l"...) = 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)
openat(AT_FDCWD, "cpuset.effective_mems", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
mmap(0x200000000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x200000000000
--- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x200000000580} ---
--- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x200000000584} ---
--- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x200000001584} ---
write(4, 0x200000000580, 4102) = -1 EFAULT (Bad address)
[ 78.361793][ T5868] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
[ 78.422484][ T5868] ------------[ cut here ]------------
[ 78.428020][ T5868] WARNING: fs/udf/inode.c:684 at udf_setsize+0xd4e/0x1000, CPU#1: syz-executor428/5868
[ 78.437847][ T5868] Modules linked in:
[ 78.442143][ T5868] CPU: 1 UID: 0 PID: 5868 Comm: syz-executor428 Not tainted 6.17.0-rc1-next-20250812-syzkaller #0 PREEMPT(full)
[ 78.454185][ T5868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[ 78.464275][ T5868] RIP: 0010:udf_setsize+0xd4e/0x1000
[ 78.469608][ T5868] Code: 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 00 8a 89 fe 45 89 f4 e9 49 fe ff ff e8 f3 89 89 fe 90 <0f> 0b 90 e9 00 f8 ff ff 44 89 e9 80 e1 07 38 c1 0f 8c 49 f3 ff ff
[ 78.489310][ T5868] RSP: 0018:ffffc90003fbfac0 EFLAGS: 00010293
[ 78.495404][ T5868] RAX: ffffffff8336224d RBX: ffff888076d78158 RCX: ffff888025048000
[ 78.503398][ T5868] RDX: 0000000000000000 RSI: 0000000000000c00 RDI: 0000000000000a00
[ 78.511528][ T5868] RBP: ffffc90003fbfbe8 R08: ffff888076d7811b R09: 1ffff1100edaf023
[ 78.519569][ T5868] R10: dffffc0000000000 R11: ffffed100edaf024 R12: 0000000000000001
[ 78.527545][ T5868] R13: 0000000000000da0 R14: 0000000000000a00 R15: 0000000000000c00
[ 78.535568][ T5868] FS: 0000555564b95480(0000) GS:ffff888125d13000(0000) knlGS:0000000000000000
[ 78.544556][ T5868] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 78.551201][ T5868] CR2: 0000200000000580 CR3: 0000000074ec2000 CR4: 00000000003526f0
[ 78.559252][ T5868] Call Trace:
[ 78.562524][ T5868]
[ 78.565460][ T5868] ? __pfx_udf_setsize+0x10/0x10
[ 78.570421][ T5868] ? down_write+0x162/0x1f0
[ 78.574977][ T5868] ? __pfx_current_time+0x10/0x10
[ 78.580035][ T5868] udf_setattr+0x3a1/0x5a0
[ 78.584546][ T5868] ? __pfx_udf_setattr+0x10/0x10
[ 78.589507][ T5868] notify_change+0xb33/0xe40
[ 78.594112][ T5868] do_truncate+0x1a4/0x220
[ 78.598588][ T5868] ? __pfx_do_truncate+0x10/0x10
[ 78.603534][ T5868] ? _raw_spin_unlock_irq+0x23/0x50
[ 78.608968][ T5868] do_ftruncate+0x489/0x540
[ 78.613565][ T5868] ? __pfx_ptrace_notify+0x10/0x10
[ 78.618715][ T5868] ? __pfx_do_ftruncate+0x10/0x10
[ 78.623754][ T5868] ? rcu_is_watching+0x15/0xb0
[ 78.628551][ T5868] __x64_sys_ftruncate+0x92/0xf0
[ 78.633498][ T5868] do_syscall_64+0xfa/0x3b0
[ 78.638001][ T5868] ? lockdep_hardirqs_on+0x9c/0x150
[ 78.643820][ T5868] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 78.650115][ T5868] ? clear_bhb_loop+0x60/0xb0
[ 78.654827][ T5868] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 78.660779][ T5868] RIP: 0033:0x7f49b3114cb9
[ 78.665220][ T5868] 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
[ 78.684928][ T5868] RSP: 002b:00007ffefae10158 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
[ 78.693507][ T5868] RAX: ffffffffffffffda RBX: 00736d656d5f6576 RCX: 00007f49b3114cb9
[ 78.701723][ T5868] RDX: ffffffffffffffb8 RSI: 0000000000000da0 RDI: 0000000000000004
[ 78.709735][ T5868] RBP: 00007ffefae10168 R08: 00007f49b30e0c80 R09: 00007f49b30e0c80
[ 78.717812][ T5868] R10: 00007ffefae10168 R11: 0000000000000246 R12: 0000000000000000
[ 78.725871][ T5868] R13: 00007ffefae103c8 R14: 0000000000000001 R15: 0000000000000001
[ 78.733964][ T5868]
[ 78.737018][ T5868] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 78.744371][ T5868] CPU: 1 UID: 0 PID: 5868 Comm: syz-executor428 Not tainted 6.17.0-rc1-next-20250812-syzkaller #0 PREEMPT(full)
[ 78.756286][ T5868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[ 78.766350][ T5868] Call Trace:
[ 78.769625][ T5868]
[ 78.772547][ T5868] dump_stack_lvl+0x99/0x250
[ 78.777134][ T5868] ? __asan_memcpy+0x40/0x70
[ 78.781796][ T5868] ? __pfx_dump_stack_lvl+0x10/0x10
[ 78.786981][ T5868] ? __pfx__printk+0x10/0x10
[ 78.791573][ T5868] vpanic+0x281/0x750
[ 78.795555][ T5868] ? __pfx_vpanic+0x10/0x10
[ 78.800057][ T5868] ? is_bpf_text_address+0x292/0x2b0
[ 78.805345][ T5868] ? is_bpf_text_address+0x26/0x2b0
[ 78.810647][ T5868] panic+0xb9/0xc0
[ 78.814382][ T5868] ? __pfx_panic+0x10/0x10
[ 78.818812][ T5868] __warn+0x334/0x4c0
[ 78.822925][ T5868] ? udf_setsize+0xd4e/0x1000
[ 78.827636][ T5868] ? udf_setsize+0xd4e/0x1000
[ 78.832320][ T5868] report_bug+0x2be/0x4f0
[ 78.836655][ T5868] ? udf_setsize+0xd4e/0x1000
[ 78.841330][ T5868] ? udf_setsize+0xd4e/0x1000
[ 78.846011][ T5868] ? udf_setsize+0xd50/0x1000
[ 78.850679][ T5868] handle_bug+0x84/0x160
[ 78.854918][ T5868] exc_invalid_op+0x1a/0x50
[ 78.859412][ T5868] asm_exc_invalid_op+0x1a/0x20
[ 78.864259][ T5868] RIP: 0010:udf_setsize+0xd4e/0x1000
[ 78.869535][ T5868] Code: 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 00 8a 89 fe 45 89 f4 e9 49 fe ff ff e8 f3 89 89 fe 90 <0f> 0b 90 e9 00 f8 ff ff 44 89 e9 80 e1 07 38 c1 0f 8c 49 f3 ff ff
[ 78.889251][ T5868] RSP: 0018:ffffc90003fbfac0 EFLAGS: 00010293
[ 78.895402][ T5868] RAX: ffffffff8336224d RBX: ffff888076d78158 RCX: ffff888025048000
[ 78.903728][ T5868] RDX: 0000000000000000 RSI: 0000000000000c00 RDI: 0000000000000a00
[ 78.911709][ T5868] RBP: ffffc90003fbfbe8 R08: ffff888076d7811b R09: 1ffff1100edaf023
[ 78.919675][ T5868] R10: dffffc0000000000 R11: ffffed100edaf024 R12: 0000000000000001
[ 78.927640][ T5868] R13: 0000000000000da0 R14: 0000000000000a00 R15: 0000000000000c00
[ 78.935697][ T5868] ? udf_setsize+0xd4d/0x1000
[ 78.940396][ T5868] ? __pfx_udf_setsize+0x10/0x10
[ 78.945325][ T5868] ? down_write+0x162/0x1f0
[ 78.949825][ T5868] ? __pfx_current_time+0x10/0x10
[ 78.954854][ T5868] udf_setattr+0x3a1/0x5a0
[ 78.959261][ T5868] ? __pfx_udf_setattr+0x10/0x10
[ 78.964189][ T5868] notify_change+0xb33/0xe40
[ 78.968789][ T5868] do_truncate+0x1a4/0x220
[ 78.973294][ T5868] ? __pfx_do_truncate+0x10/0x10
[ 78.978331][ T5868] ? _raw_spin_unlock_irq+0x23/0x50
[ 78.983706][ T5868] do_ftruncate+0x489/0x540
[ 78.988213][ T5868] ? __pfx_ptrace_notify+0x10/0x10
[ 78.993333][ T5868] ? __pfx_do_ftruncate+0x10/0x10
[ 78.998388][ T5868] ? rcu_is_watching+0x15/0xb0
[ 79.003153][ T5868] __x64_sys_ftruncate+0x92/0xf0
[ 79.008093][ T5868] do_syscall_64+0xfa/0x3b0
[ 79.012592][ T5868] ? lockdep_hardirqs_on+0x9c/0x150
[ 79.017791][ T5868] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 79.023851][ T5868] ? clear_bhb_loop+0x60/0xb0
[ 79.028525][ T5868] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 79.034409][ T5868] RIP: 0033:0x7f49b3114cb9
[ 79.038823][ T5868] 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
[ 79.058507][ T5868] RSP: 002b:00007ffefae10158 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
[ 79.066917][ T5868] RAX: ffffffffffffffda RBX: 00736d656d5f6576 RCX: 00007f49b3114cb9
[ 79.074882][ T5868] RDX: ffffffffffffffb8 RSI: 0000000000000da0 RDI: 0000000000000004
[ 79.082843][ T5868] RBP: 00007ffefae10168 R08: 00007f49b30e0c80 R09: 00007f49b30e0c80
[ 79.090890][ T5868] R10: 00007ffefae10168 R11: 0000000000000246 R12: 0000000000000000
[ 79.098847][ T5868] R13: 00007ffefae103c8 R14: 0000000000000001 R15: 0000000000000001
[ 79.106825][ T5868]
[ 79.110131][ T5868] Kernel Offset: disabled
[ 79.114472][ T5868] Rebooting in 86400 seconds..