./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1561137153 <...> Warning: Permanently added '10.128.1.143' (ED25519) to the list of known hosts. execve("./syz-executor1561137153", ["./syz-executor1561137153"], 0x7ffe265d9570 /* 10 vars */) = 0 brk(NULL) = 0x5555574a3000 brk(0x5555574a3d00) = 0x5555574a3d00 arch_prctl(ARCH_SET_FS, 0x5555574a3380) = 0 set_tid_address(0x5555574a3650) = 5042 set_robust_list(0x5555574a3660, 24) = 0 rseq(0x5555574a3ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1561137153", 4096) = 28 getrandom("\x4d\xeb\x14\xd8\xf4\x82\xfa\xc9", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555574a3d00 brk(0x5555574c4d00) = 0x5555574c4d00 brk(0x5555574c5000) = 0x5555574c5000 mprotect(0x7f14c930f000, 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 5043 attached , child_tidptr=0x5555574a3650) = 5043 [pid 5043] set_robust_list(0x5555574a3660, 24) = 0 [pid 5043] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5043] setpgid(0, 0) = 0 [pid 5043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5043] write(3, "1000", 4) = 4 [pid 5043] close(3) = 0 [pid 5043] memfd_create("syzkaller", 0) = 3 [pid 5043] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f14c0e37000 [ 90.064413][ T5043] syz-executor156[5043]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5043] 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"..., 16777216) = 16777216 [pid 5043] munmap(0x7f14c0e37000, 16777216) = 0 [pid 5043] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5043] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5043] close(3) = 0 [pid 5043] mkdir("./file0", 0777) = 0 [pid 5043] mount("/dev/loop0", "./file0", "jfs", MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME|MS_LAZYTIME, "") = 0 [pid 5043] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5043] chdir("./file0") = 0 [pid 5043] ioctl(4, LOOP_CLR_FD) = 0 [pid 5043] close(4) = 0 [pid 5043] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [pid 5043] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|O_NOATIME|FASYNC, 000) = 5 [pid 5043] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 6 [pid 5043] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [ 91.522492][ T5043] dump_stack_lvl+0x125/0x1b0 [ 91.527234][ T5043] __ubsan_handle_shift_out_of_bounds+0x27a/0x600 [ 91.533705][ T5043] extAlloc.cold+0x8b/0xc5 [ 91.538163][ T5043] ? jfs_ioc_trim+0x5c0/0x5c0 [ 91.542878][ T5043] ? down_write_nested+0x153/0x200 [ 91.548043][ T5043] ? lock_acquire+0x464/0x510 [ 91.552775][ T5043] ? lockdep_init_map_type+0x16d/0x7c0 [ 91.558296][ T5043] jfs_get_block+0x428/0xb20 [ 91.562932][ T5043] ? jfs_read_folio+0x20/0x20 [ 91.567641][ T5043] ? folio_flags.constprop.0+0x56/0x150 [ 91.573223][ T5043] ? do_raw_spin_unlock+0x173/0x230 [ 91.578467][ T5043] ? _raw_spin_unlock+0x28/0x40 [ 91.583363][ T5043] ? jfs_read_folio+0x20/0x20 [ 91.588067][ T5043] __block_write_begin_int+0x3c0/0x1470 [ 91.593656][ T5043] ? jfs_read_folio+0x20/0x20 [ 91.598368][ T5043] ? invalidate_bh_lrus_cpu+0x170/0x170 [ 91.603956][ T5043] ? folio_flags+0x71/0x1f0 [ 91.608490][ T5043] block_write_begin+0xb1/0x490 [ 91.613378][ T5043] ? jfs_read_folio+0x20/0x20 [ 91.618101][ T5043] jfs_write_begin+0x31/0xd0 [ 91.622808][ T5043] generic_perform_write+0x278/0x600 [ 91.628136][ T5043] ? folio_add_wait_queue+0x1c0/0x1c0 [ 91.633546][ T5043] ? generic_file_direct_write+0xca/0x360 [ 91.639319][ T5043] ? __mnt_drop_write_file+0x45/0xf0 [ 91.644736][ T5043] __generic_file_write_iter+0x1d0/0x240 [ 91.650432][ T5043] generic_file_write_iter+0xe3/0x350 [ 91.655843][ T5043] do_iter_readv_writev+0x21e/0x3c0 [ 91.661081][ T5043] ? generic_copy_file_range+0x1d0/0x1d0 [ 91.666748][ T5043] ? bpf_lsm_file_permission+0x9/0x10 [ 91.672157][ T5043] ? security_file_permission+0x94/0x100 [ 91.677843][ T5043] do_iter_write+0x17f/0x830 [ 91.682472][ T5043] vfs_iter_write+0x7a/0xb0 [ 91.687099][ T5043] iter_file_splice_write+0x698/0xbf0 [ 91.692519][ T5043] ? splice_from_pipe_next+0x5d0/0x5d0 [ 91.698022][ T5043] ? security_file_permission+0xdc/0x100 [ 91.703701][ T5043] ? splice_from_pipe_next+0x5d0/0x5d0 [ 91.709201][ T5043] direct_splice_actor+0x118/0x180 [ 91.714350][ T5043] splice_direct_to_actor+0x347/0xa30 [ 91.719761][ T5043] ? folio_flags.constprop.0+0x150/0x150 [ 91.725524][ T5043] ? vfs_splice_read+0x3b0/0x3b0 [ 91.730507][ T5043] ? bpf_lsm_file_permission+0x9/0x10 [ 91.735919][ T5043] ? security_file_permission+0x94/0x100 [ 91.741601][ T5043] do_splice_direct+0x1af/0x280 [ 91.746487][ T5043] ? splice_direct_to_actor+0xa30/0xa30 [ 91.752071][ T5043] ? propagate_umount+0x1af0/0x1af0 [ 91.757305][ T5043] ? preempt_count_sub+0x150/0x150 [ 91.762462][ T5043] do_sendfile+0xb88/0x1390 [ 91.766999][ T5043] ? vfs_iocb_iter_write+0x4c0/0x4c0 [ 91.772312][ T5043] ? lock_release+0x4bf/0x680 [ 91.777023][ T5043] ? ptrace_notify+0xf4/0x130 [ 91.781727][ T5043] ? reacquire_held_locks+0x4b0/0x4b0 [ 91.787138][ T5043] __x64_sys_sendfile64+0x1d6/0x220 [ 91.792371][ T5043] ? rcu_is_watching+0x12/0xb0 [ 91.797160][ T5043] ? __ia32_sys_sendfile+0x220/0x220 [ 91.802485][ T5043] ? _raw_spin_unlock_irq+0x2e/0x50 [ 91.807716][ T5043] ? ptrace_notify+0xf4/0x130 [ 91.812427][ T5043] do_syscall_64+0x38/0xb0 [ 91.816887][ T5043] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 91.822838][ T5043] RIP: 0033:0x7f14c9276299 [ 91.827377][ T5043] 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 [ 91.847184][ T5043] RSP: 002b:00007ffdb70c63b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 91.855623][ T5043] RAX: ffffffffffffffda RBX: 00007f14c92bf08a RCX: 00007f14c9276299 [ 91.863618][ T5043] RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000009 [ 91.871610][ T5043] RBP: 00007f14c92bf082 R08: 000000000001ee4f R09: 000000002001f200 [ 91.879606][ T5043] R10: 0001000000201004 R11: 0000000000000246 R12: 00007ffdb70c63f0 [ 91.887599][ T5043] R13: 00007ffdb70c6618 R14: 431bde82d7b634db R15: 00007f14c92bf03b [ 91.895603][ T5043] [ 91.898905][ T5043] ================================================================================ [ 91.908466][ T5043] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 91.915693][ T5043] CPU: 1 PID: 5043 Comm: syz-executor156 Not tainted 6.5.0-rc7-next-20230825-syzkaller #0 [ 91.925611][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 91.935686][ T5043] Call Trace: [ 91.938982][ T5043] [ 91.941933][ T5043] dump_stack_lvl+0xd9/0x1b0 [ 91.946570][ T5043] panic+0x6a6/0x750 [ 91.950494][ T5043] ? panic_smp_self_stop+0xa0/0xa0 [ 91.955643][ T5043] ? syslog_print_all+0x3f0/0x3f0 [ 91.960710][ T5043] check_panic_on_warn+0xab/0xb0 [ 91.965683][ T5043] __ubsan_handle_shift_out_of_bounds+0x2a2/0x600 [ 91.972147][ T5043] extAlloc.cold+0x8b/0xc5 [ 91.976600][ T5043] ? jfs_ioc_trim+0x5c0/0x5c0 [ 91.981317][ T5043] ? down_write_nested+0x153/0x200 [ 91.986461][ T5043] ? lock_acquire+0x464/0x510 [ 91.991181][ T5043] ? lockdep_init_map_type+0x16d/0x7c0 [ 91.996685][ T5043] jfs_get_block+0x428/0xb20 [ 92.001312][ T5043] ? jfs_read_folio+0x20/0x20 [ 92.006018][ T5043] ? folio_flags.constprop.0+0x56/0x150 [ 92.011600][ T5043] ? do_raw_spin_unlock+0x173/0x230 [ 92.016847][ T5043] ? _raw_spin_unlock+0x28/0x40 [ 92.021735][ T5043] ? jfs_read_folio+0x20/0x20 [ 92.026461][ T5043] __block_write_begin_int+0x3c0/0x1470 [ 92.032048][ T5043] ? jfs_read_folio+0x20/0x20 [ 92.036755][ T5043] ? invalidate_bh_lrus_cpu+0x170/0x170 [ 92.042343][ T5043] ? folio_flags+0x71/0x1f0 [ 92.046884][ T5043] block_write_begin+0xb1/0x490 [ 92.051859][ T5043] ? jfs_read_folio+0x20/0x20 [ 92.056563][ T5043] jfs_write_begin+0x31/0xd0 [ 92.061183][ T5043] generic_perform_write+0x278/0x600 [ 92.066505][ T5043] ? folio_add_wait_queue+0x1c0/0x1c0 [ 92.071921][ T5043] ? generic_file_direct_write+0xca/0x360 [ 92.077863][ T5043] ? __mnt_drop_write_file+0x45/0xf0 [ 92.083196][ T5043] __generic_file_write_iter+0x1d0/0x240 [ 92.088873][ T5043] generic_file_write_iter+0xe3/0x350 [ 92.094314][ T5043] do_iter_readv_writev+0x21e/0x3c0 [ 92.099552][ T5043] ? generic_copy_file_range+0x1d0/0x1d0 [ 92.105241][ T5043] ? bpf_lsm_file_permission+0x9/0x10 [ 92.110746][ T5043] ? security_file_permission+0x94/0x100 [ 92.116431][ T5043] do_iter_write+0x17f/0x830 [ 92.121079][ T5043] vfs_iter_write+0x7a/0xb0 [ 92.125612][ T5043] iter_file_splice_write+0x698/0xbf0 [ 92.131040][ T5043] ? splice_from_pipe_next+0x5d0/0x5d0 [ 92.136541][ T5043] ? security_file_permission+0xdc/0x100 [ 92.142221][ T5043] ? splice_from_pipe_next+0x5d0/0x5d0 [ 92.147718][ T5043] direct_splice_actor+0x118/0x180 [ 92.152867][ T5043] splice_direct_to_actor+0x347/0xa30 [ 92.158279][ T5043] ? folio_flags.constprop.0+0x150/0x150 [ 92.164059][ T5043] ? vfs_splice_read+0x3b0/0x3b0 [ 92.169032][ T5043] ? bpf_lsm_file_permission+0x9/0x10 [ 92.174434][ T5043] ? security_file_permission+0x94/0x100 [ 92.180110][ T5043] do_splice_direct+0x1af/0x280 [ 92.184997][ T5043] ? splice_direct_to_actor+0xa30/0xa30 [ 92.190583][ T5043] ? propagate_umount+0x1af0/0x1af0 [ 92.195817][ T5043] ? preempt_count_sub+0x150/0x150 [ 92.200978][ T5043] do_sendfile+0xb88/0x1390 [ 92.205603][ T5043] ? vfs_iocb_iter_write+0x4c0/0x4c0 [ 92.210919][ T5043] ? lock_release+0x4bf/0x680 [ 92.215627][ T5043] ? ptrace_notify+0xf4/0x130 [ 92.220327][ T5043] ? reacquire_held_locks+0x4b0/0x4b0 [ 92.225738][ T5043] __x64_sys_sendfile64+0x1d6/0x220 [ 92.230972][ T5043] ? rcu_is_watching+0x12/0xb0 [ 92.235770][ T5043] ? __ia32_sys_sendfile+0x220/0x220 [ 92.241092][ T5043] ? _raw_spin_unlock_irq+0x2e/0x50 [ 92.246417][ T5043] ? ptrace_notify+0xf4/0x130 [ 92.251125][ T5043] do_syscall_64+0x38/0xb0 [ 92.255582][ T5043] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 92.261539][ T5043] RIP: 0033:0x7f14c9276299 [ 92.265971][ T5043] 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 [ 92.285792][ T5043] RSP: 002b:00007ffdb70c63b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 92.294235][ T5043] RAX: ffffffffffffffda RBX: 00007f14c92bf08a RCX: 00007f14c9276299 [ 92.302233][ T5043] RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000009 [ 92.310231][ T5043] RBP: 00007f14c92bf082 R08: 000000000001ee4f R09: 000000002001f200 [ 92.318239][ T5043] R10: 0001000000201004 R11: 0000000000000246 R12: 00007ffdb70c63f0 [ 92.326250][ T5043] R13: 00007ffdb70c6618 R14: 431bde82d7b634db R15: 00007f14c92bf03b [ 92.334263][ T5043] [ 92.337407][ T5043] Kernel Offset: disabled [ 92.341738][ T5043] Rebooting in 86400 seconds..