./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1741034242 <...> Warning: Permanently added '10.128.1.12' (ED25519) to the list of known hosts. execve("./syz-executor1741034242", ["./syz-executor1741034242"], 0x7ffe5b9f15c0 /* 10 vars */) = 0 brk(NULL) = 0x55555741e000 brk(0x55555741ed00) = 0x55555741ed00 arch_prctl(ARCH_SET_FS, 0x55555741e380) = 0 set_tid_address(0x55555741e650) = 5037 set_robust_list(0x55555741e660, 24) = 0 rseq(0x55555741eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1741034242", 4096) = 28 getrandom("\xfc\xd5\x2f\x87\xf9\x2d\x4f\xfd", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555741ed00 brk(0x55555743fd00) = 0x55555743fd00 brk(0x555557440000) = 0x555557440000 mprotect(0x7f7f5b117000, 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 mkdir("./syzkaller.odS3zm", 0700) = 0 chmod("./syzkaller.odS3zm", 0777) = 0 chdir("./syzkaller.odS3zm") = 0 mkdir("./0", 0777) = 0 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 5038 attached , child_tidptr=0x55555741e650) = 5038 [pid 5038] set_robust_list(0x55555741e660, 24) = 0 [pid 5038] chdir("./0") = 0 [pid 5038] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5038] setpgid(0, 0) = 0 [pid 5038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5038] write(3, "1000", 4) = 4 [pid 5038] close(3) = 0 [pid 5038] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5038] memfd_create("syzkaller", 0) = 3 [pid 5038] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f52c44000 [pid 5038] 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 5038] munmap(0x7f7f52c44000, 1048576) = 0 [pid 5038] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5038] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5038] close(3) = 0 [pid 5038] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 [pid 5038] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "udf", MS_NODIRATIME, "") = 0 [pid 5038] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 [pid 5038] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [pid 5038] ioctl(4, LOOP_CLR_FD) = 0 [pid 5038] close(4) = 0 [pid 5038] memfd_create("syzkaller", 0) = 4 [pid 5038] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f4a944000 [ 59.683015][ T5038] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5038 'syz-executor174' [ 59.707006][ T5038] loop0: detected capacity change from 0 to 2048 [ 59.717283][ T5038] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [pid 5038] write(4, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x01\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\xff\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x02\x00\x00\x00\xbb\x02\x87\x1c\xc7\xbb\xb3\x5e\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 [pid 5038] munmap(0x7f7f4a944000, 2097152) = 0 [pid 5038] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 5038] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 5038] ioctl(5, LOOP_CLR_FD) = 0 [pid 5038] ioctl(5, LOOP_SET_FD, 4) = -1 EBUSY (Device or resource busy) [pid 5038] close(5) = 0 [pid 5038] close(4) = 0 [pid 5038] creat("./bus", 000) = 4 [pid 5038] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0 [pid 5038] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5 [pid 5038] write(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x2e\x2f\x62\x75\x73\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 34136651) = 1048576 [pid 5038] exit_group(0) = ? [pid 5038] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5038, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55555741f6f0 /* 4 entries */, 32768) = 352 [ 59.900728][ T5037] BUG: unable to handle page fault for address: ffffed1018b3ccb3 [ 59.908522][ T5037] #PF: supervisor read access in kernel mode [ 59.914519][ T5037] #PF: error_code(0x0000) - not-present page [ 59.920505][ T5037] PGD 23ffee067 P4D 23ffee067 PUD 13fff5067 PMD 0 [ 59.927056][ T5037] Oops: 0000 [#1] PREEMPT SMP KASAN [ 59.932250][ T5037] CPU: 0 PID: 5037 Comm: syz-executor174 Not tainted 6.5.0-rc4-next-20230804-syzkaller #0 [ 59.942138][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 59.952204][ T5037] RIP: 0010:udf_close_lvid+0x13b/0x5c0 [ 59.957683][ T5037] Code: 84 24 c0 00 00 00 31 f6 48 89 c7 48 89 44 24 08 e8 aa 64 4b 07 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 b2 03 00 00 [ 59.977296][ T5037] RSP: 0018:ffffc90003a17d00 EFLAGS: 00010a02 [ 59.983361][ T5037] RAX: dffffc0000000000 RBX: ffff8880c59e6580 RCX: fffff52000742f7e [ 59.991332][ T5037] RDX: 1ffff11018b3ccb3 RSI: ffffffff8ac889a0 RDI: ffff8880c59e6598 [ 59.999306][ T5037] RBP: ffff88807423ee80 R08: 0000000000000000 R09: fffffbfff1d598ca [ 60.007276][ T5037] R10: ffffc90003a17d00 R11: 0000000000094000 R12: ffff8880274f3000 [ 60.015252][ T5037] R13: ffff8880254be000 R14: ffff888073054000 R15: ffff888141274c40 [ 60.023226][ T5037] FS: 000055555741e380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 60.032165][ T5037] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.038773][ T5037] CR2: ffffed1018b3ccb3 CR3: 00000000727c0000 CR4: 00000000003506f0 [ 60.046755][ T5037] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.054756][ T5037] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.062756][ T5037] Call Trace: [ 60.066035][ T5037] [ 60.068969][ T5037] ? __die+0x1e/0x60 [ 60.072874][ T5037] ? page_fault_oops+0x398/0xad0 [ 60.077829][ T5037] ? reacquire_held_locks+0x4b0/0x4b0 [ 60.083233][ T5037] ? dump_pagetable+0x530/0x530 [ 60.088089][ T5037] ? search_extable+0x83/0xb0 [ 60.092780][ T5037] ? is_prefetch.constprop.0+0xb6/0x550 [ 60.098331][ T5037] ? __module_address+0x55/0x3b0 [ 60.103279][ T5037] ? lock_acquire+0x464/0x510 [ 60.108011][ T5037] ? bpf_ksym_find+0x124/0x1b0 [ 60.112790][ T5037] ? pgtable_bad+0x80/0x80 [ 60.117213][ T5037] ? fixup_exception+0x110/0xc90 [ 60.122161][ T5037] ? kernelmode_fixup_or_oops+0x23c/0x2b0 [ 60.127893][ T5037] ? __bad_area_nosemaphore+0x390/0x6a0 [ 60.133451][ T5037] ? spurious_kernel_fault+0x376/0x550 [ 60.138919][ T5037] ? do_kern_addr_fault+0x5b/0x70 [ 60.143949][ T5037] ? exc_page_fault+0xba/0xd0 [ 60.148636][ T5037] ? asm_exc_page_fault+0x26/0x30 [ 60.153685][ T5037] ? udf_close_lvid+0x13b/0x5c0 [ 60.158553][ T5037] udf_put_super+0x19c/0x200 [ 60.163150][ T5037] ? udf_close_lvid+0x5c0/0x5c0 [ 60.168022][ T5037] generic_shutdown_super+0x158/0x480 [ 60.173407][ T5037] kill_block_super+0x3b/0xc0 [ 60.178097][ T5037] deactivate_locked_super+0x9a/0x170 [ 60.183483][ T5037] deactivate_super+0xde/0x100 [ 60.188267][ T5037] cleanup_mnt+0x222/0x3d0 [ 60.192699][ T5037] task_work_run+0x14d/0x240 [ 60.197311][ T5037] ? task_work_cancel+0x30/0x30 [ 60.202181][ T5037] ptrace_notify+0x10c/0x130 [ 60.206783][ T5037] syscall_exit_to_user_mode_prepare+0x120/0x220 [ 60.213116][ T5037] syscall_exit_to_user_mode+0xd/0x50 [ 60.218498][ T5037] do_syscall_64+0x44/0xb0 [ 60.222928][ T5037] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.228835][ T5037] RIP: 0033:0x7f7f5b084547 [ 60.233254][ T5037] Code: 09 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 60.252872][ T5037] RSP: 002b:00007ffce1a616c8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 60.261287][ T5037] RAX: 0000000000000000 RBX: 000000000000e903 RCX: 00007f7f5b084547 [ 60.269260][ T5037] RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffce1a61780 [ 60.277233][ T5037] RBP: 00007ffce1a61780 R08: 0000000000000000 R09: 0000000000000000 [ 60.285204][ T5037] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffce1a627f0 [ 60.293173][ T5037] R13: 000055555741f6c0 R14: 431bde82d7b634db R15: 00007ffce1a62810 [ 60.301194][ T5037] [ 60.304474][ T5037] Modules linked in: [ 60.308362][ T5037] CR2: ffffed1018b3ccb3 [ 60.312506][ T5037] ---[ end trace 0000000000000000 ]--- [ 60.317969][ T5037] RIP: 0010:udf_close_lvid+0x13b/0x5c0 [ 60.323436][ T5037] Code: 84 24 c0 00 00 00 31 f6 48 89 c7 48 89 44 24 08 e8 aa 64 4b 07 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 b2 03 00 00 [ 60.343043][ T5037] RSP: 0018:ffffc90003a17d00 EFLAGS: 00010a02 [ 60.349114][ T5037] RAX: dffffc0000000000 RBX: ffff8880c59e6580 RCX: fffff52000742f7e [ 60.357086][ T5037] RDX: 1ffff11018b3ccb3 RSI: ffffffff8ac889a0 RDI: ffff8880c59e6598 [ 60.365069][ T5037] RBP: ffff88807423ee80 R08: 0000000000000000 R09: fffffbfff1d598ca [ 60.373042][ T5037] R10: ffffc90003a17d00 R11: 0000000000094000 R12: ffff8880274f3000 [ 60.381020][ T5037] R13: ffff8880254be000 R14: ffff888073054000 R15: ffff888141274c40 [ 60.388993][ T5037] FS: 000055555741e380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 60.397928][ T5037] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.404517][ T5037] CR2: ffffed1018b3ccb3 CR3: 00000000727c0000 CR4: 00000000003506f0 [ 60.412494][ T5037] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.420461][ T5037] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.428435][ T5037] Kernel panic - not syncing: Fatal exception [ 60.434612][ T5037] Kernel Offset: disabled [ 60.438936][ T5037] Rebooting in 86400 seconds..