./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3405648362 <...> Warning: Permanently added '10.128.1.32' (ED25519) to the list of known hosts. execve("./syz-executor3405648362", ["./syz-executor3405648362"], 0x7ffdf57e0250 /* 10 vars */) = 0 brk(NULL) = 0x555593a14000 brk(0x555593a14d00) = 0x555593a14d00 arch_prctl(ARCH_SET_FS, 0x555593a14380) = 0 set_tid_address(0x555593a14650) = 5818 set_robust_list(0x555593a14660, 24) = 0 rseq(0x555593a14ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3405648362", 4096) = 28 getrandom("\xcf\xeb\x78\x2b\x81\x09\xc9\x4c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555593a14d00 brk(0x555593a35d00) = 0x555593a35d00 brk(0x555593a36000) = 0x555593a36000 mprotect(0x7f8c0f688000, 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 5819 attached [pid 5819] set_robust_list(0x555593a14660, 24) = 0 [pid 5818] <... clone resumed>, child_tidptr=0x555593a14650) = 5819 [pid 5819] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5819] setpgid(0, 0) = 0 [pid 5819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5819] write(3, "1000", 4) = 4 [pid 5819] close(3) = 0 [pid 5819] write(1, "executing program\n", 18executing program ) = 18 [pid 5819] memfd_create("syzkaller", 0) = 3 [pid 5819] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8c07000000 [pid 5819] 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 5819] munmap(0x7f8c07000000, 138412032) = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5819] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5819] close(3) = 0 [pid 5819] close(4) = 0 [pid 5819] mkdir("./file0", 0777) = 0 [ 58.661778][ T5819] loop0: detected capacity change from 0 to 2048 [ 58.699958][ T5819] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 99: 0x27 != 0x4d [pid 5819] mount("/dev/loop0", "./file0", "udf", MS_NOSUID|MS_DIRSYNC, "iocharset=koi8-r,unhide,iocharset=cp737,dmode=00000000000000000000011,fileset=00000000000000001023,u"...) = 0 [pid 5819] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5819] chdir("./file0") = 0 [pid 5819] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5819] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_DIRECT|O_NOATIME, 0270) = 4 [ 58.715051][ T5819] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 58.730724][ T29] audit: type=1800 audit(1735195016.180:2): pid=5819 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor340" name="file1" dev="loop0" ino=1346 res=0 errno=0 [ 58.755265][ T5819] ------------[ cut here ]------------ [ 58.760780][ T5819] WARNING: CPU: 0 PID: 5819 at fs/udf/truncate.c:224 udf_truncate_extents+0x10c8/0x1310 [ 58.770605][ T5819] Modules linked in: [ 58.774591][ T5819] CPU: 0 UID: 0 PID: 5819 Comm: syz-executor340 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 [ 58.785744][ T5819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 58.795843][ T5819] RIP: 0010:udf_truncate_extents+0x10c8/0x1310 [ 58.801995][ T5819] 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 [ 58.821665][ T5819] RSP: 0018:ffffc90003cd7740 EFLAGS: 00010293 [ 58.827787][ T5819] RAX: ffffffff83280777 RBX: 000000000000000a RCX: ffff888027fd5a00 [ 58.835823][ T5819] RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000000 [ 58.843830][ T5819] RBP: ffffc90003cd7930 R08: ffffffff8327fb98 R09: ffffffff8325d9ad [ 58.851815][ T5819] R10: 0000000000000002 R11: ffff888027fd5a00 R12: dffffc0000000000 [ 58.859834][ T5819] R13: 0000000000000000 R14: 000000000000000a R15: 0000000000000000 [ 58.867843][ T5819] FS: 0000555593a14380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 58.876809][ T5819] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.883444][ T5819] CR2: 00007f8c0f68c0f8 CR3: 0000000023c90000 CR4: 00000000003526f0 [ 58.891410][ T5819] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.899443][ T5819] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.907460][ T5819] Call Trace: [ 58.910755][ T5819] [ 58.913750][ T5819] ? __warn+0x165/0x4d0 [ 58.917938][ T5819] ? udf_truncate_extents+0x10c8/0x1310 [ 58.923550][ T5819] ? report_bug+0x2b3/0x500 [ 58.928088][ T5819] ? udf_truncate_extents+0x10c8/0x1310 [ 58.933709][ T5819] ? handle_bug+0x60/0x90 [ 58.938048][ T5819] ? exc_invalid_op+0x1a/0x50 [ 58.942717][ T5819] ? asm_exc_invalid_op+0x1a/0x20 [ 58.947796][ T5819] ? udf_current_aext+0x3bd/0xad0 [ 58.952874][ T5819] ? udf_truncate_extents+0x4e8/0x1310 [ 58.958330][ T5819] ? udf_truncate_extents+0x10c7/0x1310 [ 58.963966][ T5819] ? udf_truncate_extents+0x10c8/0x1310 [ 58.970083][ T5819] ? __pfx_udf_truncate_extents+0x10/0x10 [ 58.975957][ T5819] ? __pfx_lock_release+0x10/0x10 [ 58.980991][ T5819] ? do_raw_spin_lock+0x14f/0x370 [ 58.986067][ T5819] ? do_raw_spin_unlock+0x13c/0x8b0 [ 58.991285][ T5819] udf_write_failed+0x176/0x1b0 [ 58.996260][ T5819] udf_direct_IO+0x1c9/0x210 [ 59.000867][ T5819] generic_file_direct_write+0x1e6/0x400 [ 59.006563][ T5819] __generic_file_write_iter+0x126/0x230 [ 59.012208][ T5819] ? udf_file_write_iter+0x2e7/0x660 [ 59.017539][ T5819] udf_file_write_iter+0x2fc/0x660 [ 59.022665][ T5819] do_iter_readv_writev+0x600/0x880 [ 59.027910][ T5819] ? __pfx_do_iter_readv_writev+0x10/0x10 [ 59.033688][ T5819] ? rcu_read_lock_any_held+0xb7/0x160 [ 59.039170][ T5819] vfs_writev+0x376/0xba0 [ 59.043553][ T5819] ? __pfx_vfs_writev+0x10/0x10 [ 59.048461][ T5819] ? _raw_spin_unlock_irq+0x2e/0x50 [ 59.053756][ T5819] ? ptrace_notify+0x279/0x380 [ 59.058536][ T5819] __se_sys_pwritev2+0x196/0x2b0 [ 59.063510][ T5819] ? __pfx___se_sys_pwritev2+0x10/0x10 [ 59.068980][ T5819] ? exc_page_fault+0x590/0x8b0 [ 59.073878][ T5819] ? __x64_sys_pwritev2+0x21/0xf0 [ 59.078941][ T5819] do_syscall_64+0xf3/0x230 [ 59.083480][ T5819] ? clear_bhb_loop+0x35/0x90 [ 59.088170][ T5819] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 59.094106][ T5819] RIP: 0033:0x7f8c0f613ed9 [ 59.098555][ T5819] 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 [ 59.118222][ T5819] RSP: 002b:00007ffedf389798 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 [ 59.126679][ T5819] RAX: ffffffffffffffda RBX: 00007f8c0f65d09d RCX: 00007f8c0f613ed9 [ 59.134690][ T5819] RDX: 0000000000000001 RSI: 00000000200000c0 RDI: 0000000000000004 [ 59.142672][ T5819] RBP: 00007f8c0f6885f0 R08: 0000000000000000 R09: 0000000000000000 [ 59.150682][ T5819] R10: 0000000000800001 R11: 0000000000000246 R12: 00007ffedf3897d0 [ 59.158690][ T5819] R13: 00007ffedf3899f8 R14: 431bde82d7b634db R15: 00007f8c0f65d03b [ 59.166728][ T5819] [ 59.169764][ T5819] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 59.177044][ T5819] CPU: 0 UID: 0 PID: 5819 Comm: syz-executor340 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 [ 59.188145][ T5819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 59.198194][ T5819] Call Trace: [ 59.201464][ T5819] [ 59.204393][ T5819] dump_stack_lvl+0x241/0x360 [ 59.209093][ T5819] ? __pfx_dump_stack_lvl+0x10/0x10 [ 59.214287][ T5819] ? __pfx__printk+0x10/0x10 [ 59.218872][ T5819] ? _printk+0xd5/0x120 [ 59.223023][ T5819] ? __init_begin+0x41000/0x41000 [ 59.228050][ T5819] ? vscnprintf+0x5d/0x90 [ 59.232375][ T5819] panic+0x349/0x880 [ 59.236265][ T5819] ? __warn+0x174/0x4d0 [ 59.240417][ T5819] ? __pfx_panic+0x10/0x10 [ 59.244843][ T5819] __warn+0x344/0x4d0 [ 59.248825][ T5819] ? udf_truncate_extents+0x10c8/0x1310 [ 59.254377][ T5819] report_bug+0x2b3/0x500 [ 59.258704][ T5819] ? udf_truncate_extents+0x10c8/0x1310 [ 59.264249][ T5819] handle_bug+0x60/0x90 [ 59.268398][ T5819] exc_invalid_op+0x1a/0x50 [ 59.272900][ T5819] asm_exc_invalid_op+0x1a/0x20 [ 59.277751][ T5819] RIP: 0010:udf_truncate_extents+0x10c8/0x1310 [ 59.283908][ T5819] 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 [ 59.303507][ T5819] RSP: 0018:ffffc90003cd7740 EFLAGS: 00010293 [ 59.309579][ T5819] RAX: ffffffff83280777 RBX: 000000000000000a RCX: ffff888027fd5a00 [ 59.317542][ T5819] RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000000 [ 59.325505][ T5819] RBP: ffffc90003cd7930 R08: ffffffff8327fb98 R09: ffffffff8325d9ad [ 59.333470][ T5819] R10: 0000000000000002 R11: ffff888027fd5a00 R12: dffffc0000000000 [ 59.341431][ T5819] R13: 0000000000000000 R14: 000000000000000a R15: 0000000000000000 [ 59.349399][ T5819] ? udf_current_aext+0x3bd/0xad0 [ 59.354419][ T5819] ? udf_truncate_extents+0x4e8/0x1310 [ 59.359875][ T5819] ? udf_truncate_extents+0x10c7/0x1310 [ 59.365435][ T5819] ? __pfx_udf_truncate_extents+0x10/0x10 [ 59.371153][ T5819] ? __pfx_lock_release+0x10/0x10 [ 59.376168][ T5819] ? do_raw_spin_lock+0x14f/0x370 [ 59.381192][ T5819] ? do_raw_spin_unlock+0x13c/0x8b0 [ 59.386394][ T5819] udf_write_failed+0x176/0x1b0 [ 59.391240][ T5819] udf_direct_IO+0x1c9/0x210 [ 59.395827][ T5819] generic_file_direct_write+0x1e6/0x400 [ 59.401464][ T5819] __generic_file_write_iter+0x126/0x230 [ 59.407088][ T5819] ? udf_file_write_iter+0x2e7/0x660 [ 59.412366][ T5819] udf_file_write_iter+0x2fc/0x660 [ 59.417481][ T5819] do_iter_readv_writev+0x600/0x880 [ 59.422678][ T5819] ? __pfx_do_iter_readv_writev+0x10/0x10 [ 59.428429][ T5819] ? rcu_read_lock_any_held+0xb7/0x160 [ 59.433901][ T5819] vfs_writev+0x376/0xba0 [ 59.438235][ T5819] ? __pfx_vfs_writev+0x10/0x10 [ 59.443095][ T5819] ? _raw_spin_unlock_irq+0x2e/0x50 [ 59.448287][ T5819] ? ptrace_notify+0x279/0x380 [ 59.453052][ T5819] __se_sys_pwritev2+0x196/0x2b0 [ 59.457988][ T5819] ? __pfx___se_sys_pwritev2+0x10/0x10 [ 59.463444][ T5819] ? exc_page_fault+0x590/0x8b0 [ 59.468293][ T5819] ? __x64_sys_pwritev2+0x21/0xf0 [ 59.473316][ T5819] do_syscall_64+0xf3/0x230 [ 59.477820][ T5819] ? clear_bhb_loop+0x35/0x90 [ 59.482518][ T5819] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 59.488438][ T5819] RIP: 0033:0x7f8c0f613ed9 [ 59.492875][ T5819] 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 [ 59.512483][ T5819] RSP: 002b:00007ffedf389798 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 [ 59.520897][ T5819] RAX: ffffffffffffffda RBX: 00007f8c0f65d09d RCX: 00007f8c0f613ed9 [ 59.528863][ T5819] RDX: 0000000000000001 RSI: 00000000200000c0 RDI: 0000000000000004 [ 59.536826][ T5819] RBP: 00007f8c0f6885f0 R08: 0000000000000000 R09: 0000000000000000 [ 59.544814][ T5819] R10: 0000000000800001 R11: 0000000000000246 R12: 00007ffedf3897d0 [ 59.552794][ T5819] R13: 00007ffedf3899f8 R14: 431bde82d7b634db R15: 00007f8c0f65d03b [ 59.560790][ T5819] [ 59.564055][ T5819] Kernel Offset: disabled [ 59.568408][ T5819] Rebooting in 86400 seconds..