./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1665396053 <...> Warning: Permanently added '10.128.1.56' (ED25519) to the list of known hosts. execve("./syz-executor1665396053", ["./syz-executor1665396053"], 0x7ffcdbb2a320 /* 10 vars */) = 0 brk(NULL) = 0x55558b38b000 brk(0x55558b38bd00) = 0x55558b38bd00 arch_prctl(ARCH_SET_FS, 0x55558b38b380) = 0 set_tid_address(0x55558b38b650) = 5824 set_robust_list(0x55558b38b660, 24) = 0 rseq(0x55558b38bca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1665396053", 4096) = 28 getrandom("\xa7\x5c\xa2\xc2\x8c\xac\xcc\x1f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558b38bd00 brk(0x55558b3acd00) = 0x55558b3acd00 brk(0x55558b3ad000) = 0x55558b3ad000 mprotect(0x7f560c4be000, 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/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5826 attached [pid 5826] set_robust_list(0x55558b38b660, 24 [pid 5824] <... clone resumed>, child_tidptr=0x55558b38b650) = 5826 [pid 5826] <... set_robust_list resumed>) = 0 [pid 5826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5826] setpgid(0, 0) = 0 [pid 5826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5826] write(3, "1000", 4) = 4 [pid 5826] close(3) = 0 executing program [pid 5826] write(1, "executing program\n", 18) = 18 [pid 5826] memfd_create("syzkaller", 0) = 3 [pid 5826] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5604000000 [pid 5826] 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 [pid 5826] munmap(0x7f5604000000, 138412032) = 0 [pid 5826] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5826] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5826] close(3) = 0 [pid 5826] close(4) = 0 [pid 5826] mkdir("./file0", 0777) = 0 [ 74.800510][ T5826] loop0: detected capacity change from 0 to 2048 [ 74.830430][ T5826] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 99: 0x27 != 0x4d [pid 5826] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_DIRSYNC, "iocharset=koi8-r,unhide,iocharset=cp737,dmode=00000000000000000000011,fileset=00000000000000001023,u"...) = 0 [pid 5826] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5826] chdir("./file0") = 0 [pid 5826] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5826] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_DIRECT|O_NOATIME, 0270) = 4 [ 74.843645][ T5826] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 74.868037][ T29] audit: type=1800 audit(1735123480.951:2): pid=5826 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor166" name="file1" dev="loop0" ino=1346 res=0 errno=0 [ 74.879279][ T5826] ------------[ cut here ]------------ [ 74.893845][ T5826] WARNING: CPU: 1 PID: 5826 at fs/udf/truncate.c:224 udf_truncate_extents+0x10c8/0x1310 [ 74.903699][ T5826] Modules linked in: [ 74.907738][ T5826] CPU: 1 UID: 0 PID: 5826 Comm: syz-executor166 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 [ 74.918945][ T5826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 74.929088][ T5826] RIP: 0010:udf_truncate_extents+0x10c8/0x1310 [ 74.935290][ T5826] Code: 48 3b 84 24 a0 01 00 00 0f 85 4b 02 00 00 44 89 f8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 69 6c 77 fe 90 <0f> 0b 90 eb 8c 48 8d 8c 24 60 01 00 00 80 e1 07 80 c1 03 38 c1 0f [ 74.954968][ T5826] RSP: 0018:ffffc90003d17740 EFLAGS: 00010293 [ 74.961147][ T5826] RAX: ffffffff83280777 RBX: 000000000000000a RCX: ffff88802c898000 [ 74.969183][ T5826] RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000000 [ 74.977209][ T5826] RBP: ffffc90003d17930 R08: ffffffff8327fb98 R09: ffffffff8325d9ad [ 74.985201][ T5826] R10: 0000000000000002 R11: ffff88802c898000 R12: dffffc0000000000 [ 74.993224][ T5826] R13: 0000000000000000 R14: 000000000000000a R15: 0000000000000000 [ 75.001245][ T5826] FS: 000055558b38b380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 75.010220][ T5826] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.016869][ T5826] CR2: 00007f560c4c20f8 CR3: 00000000313d6000 CR4: 00000000003526f0 [ 75.024865][ T5826] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.032889][ T5826] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.040993][ T5826] Call Trace: [ 75.044298][ T5826] [ 75.047273][ T5826] ? __warn+0x165/0x4d0 [ 75.051471][ T5826] ? udf_truncate_extents+0x10c8/0x1310 [ 75.057087][ T5826] ? report_bug+0x2b3/0x500 [ 75.061650][ T5826] ? udf_truncate_extents+0x10c8/0x1310 [ 75.067294][ T5826] ? handle_bug+0x60/0x90 [ 75.071646][ T5826] ? exc_invalid_op+0x1a/0x50 [ 75.076321][ T5826] ? asm_exc_invalid_op+0x1a/0x20 [ 75.081469][ T5826] ? udf_current_aext+0x3bd/0xad0 [ 75.086522][ T5826] ? udf_truncate_extents+0x4e8/0x1310 [ 75.092058][ T5826] ? udf_truncate_extents+0x10c7/0x1310 [ 75.097698][ T5826] ? udf_truncate_extents+0x10c8/0x1310 [ 75.103314][ T5826] ? __pfx_udf_truncate_extents+0x10/0x10 [ 75.109098][ T5826] ? __pfx_lock_release+0x10/0x10 [ 75.114145][ T5826] ? do_raw_spin_lock+0x14f/0x370 [ 75.119224][ T5826] ? do_raw_spin_unlock+0x13c/0x8b0 [ 75.124459][ T5826] udf_write_failed+0x176/0x1b0 [ 75.129365][ T5826] udf_direct_IO+0x1c9/0x210 [ 75.133984][ T5826] generic_file_direct_write+0x1e6/0x400 [ 75.139691][ T5826] __generic_file_write_iter+0x126/0x230 [ 75.145345][ T5826] ? udf_file_write_iter+0x2e7/0x660 [ 75.150691][ T5826] udf_file_write_iter+0x2fc/0x660 [ 75.155850][ T5826] do_iter_readv_writev+0x600/0x880 [ 75.161108][ T5826] ? __pfx_do_iter_readv_writev+0x10/0x10 [ 75.166895][ T5826] ? rcu_read_lock_any_held+0xb7/0x160 [ 75.172412][ T5826] vfs_writev+0x376/0xba0 [ 75.176746][ T5826] ? __pfx_vfs_writev+0x10/0x10 [ 75.181700][ T5826] ? _raw_spin_unlock_irq+0x2e/0x50 [ 75.186961][ T5826] ? ptrace_notify+0x279/0x380 [ 75.191741][ T5826] __se_sys_pwritev2+0x196/0x2b0 [ 75.196686][ T5826] ? __pfx___se_sys_pwritev2+0x10/0x10 [ 75.202243][ T5826] ? exc_page_fault+0x590/0x8b0 [ 75.207167][ T5826] ? __x64_sys_pwritev2+0x21/0xf0 [ 75.212235][ T5826] do_syscall_64+0xf3/0x230 [ 75.216771][ T5826] ? clear_bhb_loop+0x35/0x90 [ 75.221513][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.227473][ T5826] RIP: 0033:0x7f560c449ed9 [ 75.231918][ T5826] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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 [ 75.251573][ T5826] RSP: 002b:00007ffd2be0ab28 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 [ 75.260152][ T5826] RAX: ffffffffffffffda RBX: 00007f560c49309d RCX: 00007f560c449ed9 [ 75.268180][ T5826] RDX: 0000000000000001 RSI: 00000000200000c0 RDI: 0000000000000004 [ 75.276169][ T5826] RBP: 00007f560c4be5f0 R08: 0000000000000000 R09: 0000000000000000 [ 75.284182][ T5826] R10: 0000000000800001 R11: 0000000000000246 R12: 00007ffd2be0ab60 [ 75.292211][ T5826] R13: 00007ffd2be0ad88 R14: 431bde82d7b634db R15: 00007f560c49303b [ 75.300248][ T5826] [ 75.303301][ T5826] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 75.310580][ T5826] CPU: 1 UID: 0 PID: 5826 Comm: syz-executor166 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 [ 75.321698][ T5826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 75.331758][ T5826] Call Trace: [ 75.335038][ T5826] [ 75.337970][ T5826] dump_stack_lvl+0x241/0x360 [ 75.342666][ T5826] ? __pfx_dump_stack_lvl+0x10/0x10 [ 75.347877][ T5826] ? __pfx__printk+0x10/0x10 [ 75.352474][ T5826] ? _printk+0xd5/0x120 [ 75.356640][ T5826] ? __init_begin+0x41000/0x41000 [ 75.361672][ T5826] ? vscnprintf+0x5d/0x90 [ 75.366008][ T5826] panic+0x349/0x880 [ 75.369917][ T5826] ? __warn+0x174/0x4d0 [ 75.374096][ T5826] ? __pfx_panic+0x10/0x10 [ 75.378543][ T5826] __warn+0x344/0x4d0 [ 75.382537][ T5826] ? udf_truncate_extents+0x10c8/0x1310 [ 75.388099][ T5826] report_bug+0x2b3/0x500 [ 75.392439][ T5826] ? udf_truncate_extents+0x10c8/0x1310 [ 75.398002][ T5826] handle_bug+0x60/0x90 [ 75.402162][ T5826] exc_invalid_op+0x1a/0x50 [ 75.406673][ T5826] asm_exc_invalid_op+0x1a/0x20 [ 75.411557][ T5826] RIP: 0010:udf_truncate_extents+0x10c8/0x1310 [ 75.417727][ T5826] Code: 48 3b 84 24 a0 01 00 00 0f 85 4b 02 00 00 44 89 f8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 69 6c 77 fe 90 <0f> 0b 90 eb 8c 48 8d 8c 24 60 01 00 00 80 e1 07 80 c1 03 38 c1 0f [ 75.437346][ T5826] RSP: 0018:ffffc90003d17740 EFLAGS: 00010293 [ 75.443450][ T5826] RAX: ffffffff83280777 RBX: 000000000000000a RCX: ffff88802c898000 [ 75.451448][ T5826] RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000000 [ 75.459454][ T5826] RBP: ffffc90003d17930 R08: ffffffff8327fb98 R09: ffffffff8325d9ad [ 75.467441][ T5826] R10: 0000000000000002 R11: ffff88802c898000 R12: dffffc0000000000 [ 75.475442][ T5826] R13: 0000000000000000 R14: 000000000000000a R15: 0000000000000000 [ 75.483435][ T5826] ? udf_current_aext+0x3bd/0xad0 [ 75.488525][ T5826] ? udf_truncate_extents+0x4e8/0x1310 [ 75.494026][ T5826] ? udf_truncate_extents+0x10c7/0x1310 [ 75.499635][ T5826] ? __pfx_udf_truncate_extents+0x10/0x10 [ 75.505405][ T5826] ? __pfx_lock_release+0x10/0x10 [ 75.510461][ T5826] ? do_raw_spin_lock+0x14f/0x370 [ 75.515533][ T5826] ? do_raw_spin_unlock+0x13c/0x8b0 [ 75.520771][ T5826] udf_write_failed+0x176/0x1b0 [ 75.525642][ T5826] udf_direct_IO+0x1c9/0x210 [ 75.530250][ T5826] generic_file_direct_write+0x1e6/0x400 [ 75.535908][ T5826] __generic_file_write_iter+0x126/0x230 [ 75.541607][ T5826] ? udf_file_write_iter+0x2e7/0x660 [ 75.546908][ T5826] udf_file_write_iter+0x2fc/0x660 [ 75.552034][ T5826] do_iter_readv_writev+0x600/0x880 [ 75.557245][ T5826] ? __pfx_do_iter_readv_writev+0x10/0x10 [ 75.562991][ T5826] ? rcu_read_lock_any_held+0xb7/0x160 [ 75.568474][ T5826] vfs_writev+0x376/0xba0 [ 75.572819][ T5826] ? __pfx_vfs_writev+0x10/0x10 [ 75.577691][ T5826] ? _raw_spin_unlock_irq+0x2e/0x50 [ 75.582900][ T5826] ? ptrace_notify+0x279/0x380 [ 75.587681][ T5826] __se_sys_pwritev2+0x196/0x2b0 [ 75.592634][ T5826] ? __pfx___se_sys_pwritev2+0x10/0x10 [ 75.598107][ T5826] ? exc_page_fault+0x590/0x8b0 [ 75.602972][ T5826] ? __x64_sys_pwritev2+0x21/0xf0 [ 75.608010][ T5826] do_syscall_64+0xf3/0x230 [ 75.612568][ T5826] ? clear_bhb_loop+0x35/0x90 [ 75.617253][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.623154][ T5826] RIP: 0033:0x7f560c449ed9 [ 75.627573][ T5826] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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 [ 75.647179][ T5826] RSP: 002b:00007ffd2be0ab28 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 [ 75.655596][ T5826] RAX: ffffffffffffffda RBX: 00007f560c49309d RCX: 00007f560c449ed9 [ 75.663568][ T5826] RDX: 0000000000000001 RSI: 00000000200000c0 RDI: 0000000000000004 [ 75.671543][ T5826] RBP: 00007f560c4be5f0 R08: 0000000000000000 R09: 0000000000000000 [ 75.679535][ T5826] R10: 0000000000800001 R11: 0000000000000246 R12: 00007ffd2be0ab60 [ 75.687529][ T5826] R13: 00007ffd2be0ad88 R14: 431bde82d7b634db R15: 00007f560c49303b [ 75.695606][ T5826] [ 75.698964][ T5826] Kernel Offset: disabled [ 75.703377][ T5826] Rebooting in 86400 seconds..