./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3236236868 <...> Warning: Permanently added '10.128.0.234' (ED25519) to the list of known hosts. execve("./syz-executor3236236868", ["./syz-executor3236236868"], 0x7fff579ac5d0 /* 10 vars */) = 0 brk(NULL) = 0x55558eee5000 brk(0x55558eee5d00) = 0x55558eee5d00 arch_prctl(ARCH_SET_FS, 0x55558eee5380) = 0 set_tid_address(0x55558eee5650) = 5101 set_robust_list(0x55558eee5660, 24) = 0 rseq(0x55558eee5ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3236236868", 4096) = 28 getrandom("\x1e\x8b\x5d\xc5\xdf\x4c\x34\x96", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558eee5d00 brk(0x55558ef06d00) = 0x55558ef06d00 brk(0x55558ef07000) = 0x55558ef07000 mprotect(0x7f9f2e10a000, 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 5102 attached [pid 5102] set_robust_list(0x55558eee5660, 24) = 0 [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5102] setpgid(0, 0 [pid 5101] <... clone resumed>, child_tidptr=0x55558eee5650) = 5102 [pid 5102] <... setpgid resumed>) = 0 [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5102] write(3, "1000", 4) = 4 [pid 5102] close(3) = 0 [pid 5102] write(1, "executing program\n", 18executing program ) = 18 [pid 5102] memfd_create("syzkaller", 0) = 3 [pid 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9f25c00000 [pid 5102] 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 5102] munmap(0x7f9f25c00000, 138412032) = 0 [pid 5102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5102] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5102] close(3) = 0 [pid 5102] close(4) = 0 [pid 5102] mkdir("./file1", 0777) = 0 [ 83.473321][ T5102] loop0: detected capacity change from 0 to 2048 [pid 5102] mount("/dev/loop0", "./file1", "udf", MS_SYNCHRONOUS|MS_LAZYTIME, "") = 0 [pid 5102] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5102] chdir("./file1") = 0 [pid 5102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5102] setrlimit(RLIMIT_FSIZE, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0 [pid 5102] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NONBLOCK|O_LARGEFILE|O_NOATIME|O_CLOEXEC|FASYNC, 000) = 4 [ 83.524191][ T5102] UDF-fs: INFO Mounting volume 'LiuxUDF', timestamp 2022/11/22 14:59 (1000) [ 83.545619][ T5102] ------------[ cut here ]------------ [ 83.551504][ T5102] WARNING: CPU: 0 PID: 5102 at fs/udf/inode.c:2047 __udf_add_aext+0x555/0x700 [ 83.551555][ T5102] Modules linked in: [ 83.551576][ T5102] CPU: 0 UID: 0 PID: 5102 Comm: syz-executor323 Not tainted 6.10.0-next-20240719-syzkaller #0 [ 83.551593][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 83.551605][ T5102] RIP: 0010:__udf_add_aext+0x555/0x700 [ 83.551629][ T5102] Code: cc dd fe 49 8b 3c 24 4c 89 fe e8 76 7b 00 ff 31 c0 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 3c 5f 76 fe 90 <0f> 0b 90 e9 e7 fb ff ff e8 2e 5f 76 fe 90 0f 0b 90 e9 54 fc ff ff [ 83.551646][ T5102] RSP: 0018:ffffc9000323f798 EFLAGS: 00010293 [ 83.551659][ T5102] RAX: ffffffff831d79d4 RBX: 1ffff92000647f71 RCX: ffff8880233bda00 [ 83.551671][ T5102] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000001d0 [ 83.551681][ T5102] RBP: 00000000000001d0 R08: ffffffff831d75b6 R09: ffffffff831d74e6 [ 83.551692][ T5102] R10: 0000000000000002 R11: ffff8880233bda00 R12: ffffc9000323fb80 [ 83.551702][ T5102] R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc9000323fb88 [ 83.551713][ T5102] FS: 000055558eee5380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 83.551726][ T5102] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.551737][ T5102] CR2: 00007f9f2e10e0f8 CR3: 0000000079d82000 CR4: 00000000003506f0 [ 83.551750][ T5102] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.551759][ T5102] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.551769][ T5102] Call Trace: [ 83.551774][ T5102] [ 83.551781][ T5102] ? __warn+0x168/0x4e0 [ 83.551801][ T5102] ? __udf_add_aext+0x555/0x700 [ 83.551828][ T5102] ? report_bug+0x2b3/0x500 [ 83.551853][ T5102] ? __udf_add_aext+0x555/0x700 [ 83.551881][ T5102] ? handle_bug+0x3e/0x70 [ 83.551896][ T5102] ? exc_invalid_op+0x1a/0x50 [ 83.551912][ T5102] ? asm_exc_invalid_op+0x1a/0x20 [ 83.551936][ T5102] ? __udf_add_aext+0x66/0x700 [ 83.551958][ T5102] ? __udf_add_aext+0x136/0x700 [ 83.551984][ T5102] ? __udf_add_aext+0x554/0x700 [ 83.552010][ T5102] ? __udf_add_aext+0x555/0x700 [ 83.552034][ T5102] ? __udf_add_aext+0x554/0x700 [ 83.552064][ T5102] udf_setup_indirect_aext+0x763/0xa20 [ 83.552096][ T5102] ? __pfx_udf_setup_indirect_aext+0x10/0x10 [ 83.552122][ T5102] ? mark_buffer_dirty_inode+0x107/0x300 [ 83.552153][ T5102] ? __udf_add_aext+0x53a/0x700 [ 83.552182][ T5102] udf_do_extend_file+0x6f8/0x11e0 [ 83.552206][ T5102] ? udf_current_aext+0x56e/0x9e0 [ 83.552242][ T5102] ? __pfx_udf_do_extend_file+0x10/0x10 [ 83.552269][ T5102] ? inode_bmap+0x2d8/0x6d0 [ 83.552302][ T5102] udf_setsize+0xc34/0x1280 [ 83.552334][ T5102] ? __pfx_udf_setsize+0x10/0x10 [ 83.552369][ T5102] ? __pfx_down_write+0x10/0x10 [ 83.552392][ T5102] ? current_time+0x203/0x2b0 [ 83.552420][ T5102] udf_setattr+0x3c7/0x5d0 [ 83.552442][ T5102] ? __pfx_udf_setattr+0x10/0x10 [ 83.552465][ T5102] notify_change+0xb9d/0xe70 [ 83.552498][ T5102] do_ftruncate+0x46b/0x590 [ 83.552521][ T5102] ? lockdep_hardirqs_on+0x99/0x150 [ 83.552549][ T5102] ? __pfx_do_ftruncate+0x10/0x10 [ 83.552581][ T5102] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 83.552612][ T5102] __x64_sys_ftruncate+0x95/0xf0 [ 83.552638][ T5102] do_syscall_64+0xf3/0x230 [ 83.552653][ T5102] ? clear_bhb_loop+0x35/0x90 [ 83.552676][ T5102] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.552695][ T5102] RIP: 0033:0x7f9f2e095d99 [ 83.552713][ T5102] 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 [ 83.552724][ T5102] RSP: 002b:00007fff0f9b5f88 EFLAGS: 00000246 ORIG_RAX: 000000000000004d [ 83.552740][ T5102] RAX: ffffffffffffffda RBX: 00007f9f2e0df095 RCX: 00007f9f2e095d99 [ 83.552751][ T5102] RDX: 00007f9f2e095d99 RSI: 0000008002007ffb RDI: 0000000000000004 [ 83.552761][ T5102] RBP: 00007f9f2e10a5f0 R08: 000055558eee64c0 R09: 000055558eee64c0 [ 83.552772][ T5102] R10: 000055558eee64c0 R11: 0000000000000246 R12: 00007fff0f9b5fb0 [ 83.552782][ T5102] R13: 00007fff0f9b61d8 R14: 431bde82d7b634db R15: 00007f9f2e0df03b [ 83.552806][ T5102] [ 83.552814][ T5102] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 83.960498][ T5102] CPU: 0 UID: 0 PID: 5102 Comm: syz-executor323 Not tainted 6.10.0-next-20240719-syzkaller #0 [ 83.971182][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 83.982982][ T5102] Call Trace: [ 83.986842][ T5102] [ 83.990259][ T5102] dump_stack_lvl+0x241/0x360 [ 83.995067][ T5102] ? __pfx_dump_stack_lvl+0x10/0x10 [ 84.000393][ T5102] ? __pfx__printk+0x10/0x10 [ 84.004999][ T5102] ? _printk+0xd5/0x120 [ 84.009179][ T5102] ? vscnprintf+0x5d/0x90 [ 84.013542][ T5102] panic+0x349/0x870 [ 84.017455][ T5102] ? __warn+0x177/0x4e0 [ 84.021622][ T5102] ? __pfx_panic+0x10/0x10 [ 84.026138][ T5102] ? show_trace_log_lvl+0x4e6/0x520 [ 84.031374][ T5102] __warn+0x34b/0x4e0 [ 84.035364][ T5102] ? __udf_add_aext+0x555/0x700 [ 84.040237][ T5102] report_bug+0x2b3/0x500 [ 84.044931][ T5102] ? __udf_add_aext+0x555/0x700 [ 84.049801][ T5102] handle_bug+0x3e/0x70 [ 84.053966][ T5102] exc_invalid_op+0x1a/0x50 [ 84.058480][ T5102] asm_exc_invalid_op+0x1a/0x20 [ 84.063344][ T5102] RIP: 0010:__udf_add_aext+0x555/0x700 [ 84.068839][ T5102] Code: cc dd fe 49 8b 3c 24 4c 89 fe e8 76 7b 00 ff 31 c0 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 3c 5f 76 fe 90 <0f> 0b 90 e9 e7 fb ff ff e8 2e 5f 76 fe 90 0f 0b 90 e9 54 fc ff ff [ 84.088540][ T5102] RSP: 0018:ffffc9000323f798 EFLAGS: 00010293 [ 84.094626][ T5102] RAX: ffffffff831d79d4 RBX: 1ffff92000647f71 RCX: ffff8880233bda00 [ 84.102603][ T5102] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000001d0 [ 84.110580][ T5102] RBP: 00000000000001d0 R08: ffffffff831d75b6 R09: ffffffff831d74e6 [ 84.118559][ T5102] R10: 0000000000000002 R11: ffff8880233bda00 R12: ffffc9000323fb80 [ 84.126535][ T5102] R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc9000323fb88 [ 84.134517][ T5102] ? __udf_add_aext+0x66/0x700 [ 84.139296][ T5102] ? __udf_add_aext+0x136/0x700 [ 84.144166][ T5102] ? __udf_add_aext+0x554/0x700 [ 84.149048][ T5102] ? __udf_add_aext+0x554/0x700 [ 84.153923][ T5102] udf_setup_indirect_aext+0x763/0xa20 [ 84.159406][ T5102] ? __pfx_udf_setup_indirect_aext+0x10/0x10 [ 84.165403][ T5102] ? mark_buffer_dirty_inode+0x107/0x300 [ 84.171063][ T5102] ? __udf_add_aext+0x53a/0x700 [ 84.175960][ T5102] udf_do_extend_file+0x6f8/0x11e0 [ 84.181102][ T5102] ? udf_current_aext+0x56e/0x9e0 [ 84.186157][ T5102] ? __pfx_udf_do_extend_file+0x10/0x10 [ 84.191811][ T5102] ? inode_bmap+0x2d8/0x6d0 [ 84.196359][ T5102] udf_setsize+0xc34/0x1280 [ 84.200919][ T5102] ? __pfx_udf_setsize+0x10/0x10 [ 84.205909][ T5102] ? __pfx_down_write+0x10/0x10 [ 84.210786][ T5102] ? current_time+0x203/0x2b0 [ 84.215485][ T5102] udf_setattr+0x3c7/0x5d0 [ 84.219916][ T5102] ? __pfx_udf_setattr+0x10/0x10 [ 84.224881][ T5102] notify_change+0xb9d/0xe70 [ 84.229501][ T5102] do_ftruncate+0x46b/0x590 [ 84.234034][ T5102] ? lockdep_hardirqs_on+0x99/0x150 [ 84.239254][ T5102] ? __pfx_do_ftruncate+0x10/0x10 [ 84.244389][ T5102] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 84.250738][ T5102] __x64_sys_ftruncate+0x95/0xf0 [ 84.255715][ T5102] do_syscall_64+0xf3/0x230 [ 84.260256][ T5102] ? clear_bhb_loop+0x35/0x90 [ 84.264952][ T5102] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.270857][ T5102] RIP: 0033:0x7f9f2e095d99 [ 84.275287][ T5102] 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 [ 84.294986][ T5102] RSP: 002b:00007fff0f9b5f88 EFLAGS: 00000246 ORIG_RAX: 000000000000004d [ 84.303414][ T5102] RAX: ffffffffffffffda RBX: 00007f9f2e0df095 RCX: 00007f9f2e095d99 [ 84.311396][ T5102] RDX: 00007f9f2e095d99 RSI: 0000008002007ffb RDI: 0000000000000004 [ 84.320769][ T5102] RBP: 00007f9f2e10a5f0 R08: 000055558eee64c0 R09: 000055558eee64c0 [ 84.329706][ T5102] R10: 000055558eee64c0 R11: 0000000000000246 R12: 00007fff0f9b5fb0 [ 84.338436][ T5102] R13: 00007fff0f9b61d8 R14: 431bde82d7b634db R15: 00007f9f2e0df03b [ 84.346627][ T5102] [ 84.349979][ T5102] Kernel Offset: disabled [ 84.354398][ T5102] Rebooting in 86400 seconds..