./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor671676180
<...>
Warning: Permanently added '10.128.0.115' (ED25519) to the list of known hosts.
execve("./syz-executor671676180", ["./syz-executor671676180"], 0x7ffe2beb19d0 /* 10 vars */) = 0
brk(NULL) = 0x555556687000
brk(0x555556687d00) = 0x555556687d00
arch_prctl(ARCH_SET_FS, 0x555556687380) = 0
set_tid_address(0x555556687650) = 5019
set_robust_list(0x555556687660, 24) = 0
rseq(0x555556687ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor671676180", 4096) = 27
getrandom("\x6f\x0d\xc4\x7f\xae\xdd\x57\x3f", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555556687d00
brk(0x5555566a8d00) = 0x5555566a8d00
brk(0x5555566a9000) = 0x5555566a9000
mprotect(0x7f26fc327000, 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.B8b4Ed", 0700) = 0
chmod("./syzkaller.B8b4Ed", 0777) = 0
chdir("./syzkaller.B8b4Ed") = 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, child_tidptr=0x555556687650) = 5020
./strace-static-x86_64: Process 5020 attached
[pid 5020] set_robust_list(0x555556687660, 24) = 0
[pid 5020] chdir("./0") = 0
[pid 5020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5020] setpgid(0, 0) = 0
[pid 5020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5020] write(3, "1000", 4) = 4
[pid 5020] close(3) = 0
[pid 5020] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5020] memfd_create("syzkaller", 0) = 3
[pid 5020] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f26f3e54000
[pid 5020] 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 5020] munmap(0x7f26f3e54000, 1048576) = 0
[pid 5020] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5020] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5020] close(3) = 0
[pid 5020] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0
[pid 5020] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "udf", MS_NODIRATIME, "") = 0
[pid 5020] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3
[pid 5020] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0
[pid 5020] ioctl(4, LOOP_CLR_FD) = 0
[pid 5020] close(4) = 0
[pid 5020] creat("./bus", 000) = 4
[pid 5020] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5020] open("./bus", O_RDWR|O_SYNC|O_NOATIME|0x3c) = 5
[pid 5020] mmap(0x20000000, 6291456, PROT_WRITE|PROT_GROWSUP, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000
[pid 5020] memfd_create("syzkaller", 0) = 6
[pid 5020] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f26ebb54000
[ 47.772211][ T5020] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5020 'syz-executor671'
[ 47.794836][ T5020] loop0: detected capacity change from 0 to 2048
[ 47.808820][ T5020] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
[pid 5020] write(6, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x10\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\x01\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x07\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x78\x5f\xaa\x3b\xd7\x0e\xce\x68\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152
[pid 5020] munmap(0x7f26ebb54000, 2097152) = 0
[pid 5020] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 7
[pid 5020] ioctl(7, LOOP_SET_FD, 6) = -1 EBUSY (Device or resource busy)
[pid 5020] ioctl(7, LOOP_CLR_FD) = 0
[pid 5020] ioctl(7, LOOP_SET_FD, 6) = -1 EBUSY (Device or resource busy)
[pid 5020] close(7) = 0
[pid 5020] close(6) = 0
[pid 5020] exit_group(0) = ?
[pid 5020] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5020, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} ---
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, 0x5555566886f0 /* 4 entries */, 32768) = 352
[ 47.914191][ T5019] BUG: unable to handle page fault for address: ffffed1018e6ff7d
[ 47.921928][ T5019] #PF: supervisor read access in kernel mode
[ 47.927899][ T5019] #PF: error_code(0x0000) - not-present page
[ 47.933878][ T5019] PGD 23ffee067 P4D 23ffee067 PUD 13fff5067 PMD 0
[ 47.940645][ T5019] Oops: 0000 [#1] PREEMPT SMP KASAN
[ 47.945830][ T5019] CPU: 1 PID: 5019 Comm: syz-executor671 Not tainted 6.5.0-rc3-syzkaller-00275-gffabf7c73176 #0
[ 47.956232][ T5019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
[ 47.966262][ T5019] RIP: 0010:udf_close_lvid+0x13b/0x5c0
[ 47.971725][ T5019] Code: 84 24 c0 00 00 00 31 f6 48 89 c7 48 89 44 24 08 e8 4a 65 47 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
[ 47.991330][ T5019] RSP: 0018:ffffc90003a8fd00 EFLAGS: 00010216
[ 47.997396][ T5019] RAX: dffffc0000000000 RBX: ffff8880c737fbd0 RCX: fffff52000751f7e
[ 48.005364][ T5019] RDX: 1ffff11018e6ff7d RSI: ffffffff8ac808e0 RDI: ffff8880c737fbe8
[ 48.013333][ T5019] RBP: ffff888075956658 R08: 0000000000000000 R09: fffffbfff1d57082
[ 48.021480][ T5019] R10: ffffc90003a8fd00 R11: 0000000000094000 R12: ffff88801a778c00
[ 48.029452][ T5019] R13: ffff888029860000 R14: ffff88807457b000 R15: ffff88801824c940
[ 48.037412][ T5019] FS: 0000555556687380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
[ 48.046323][ T5019] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 48.052884][ T5019] CR2: ffffed1018e6ff7d CR3: 000000001e88f000 CR4: 0000000000350ee0
[ 48.060839][ T5019] Call Trace:
[ 48.064096][ T5019] <TASK>
[ 48.067012][ T5019] ? __die+0x1e/0x60
[ 48.070887][ T5019] ? page_fault_oops+0x398/0xad0
[ 48.075805][ T5019] ? reacquire_held_locks+0x4b0/0x4b0
[ 48.081185][ T5019] ? dump_pagetable+0x530/0x530
[ 48.086037][ T5019] ? search_extable+0x83/0xb0
[ 48.090706][ T5019] ? is_prefetch.constprop.0+0xb6/0x550
[ 48.096229][ T5019] ? __module_address+0x55/0x3b0
[ 48.101144][ T5019] ? bpf_ksym_find+0x124/0x1b0
[ 48.105890][ T5019] ? pgtable_bad+0x80/0x80
[ 48.110284][ T5019] ? fixup_exception+0x110/0xc90
[ 48.115214][ T5019] ? kernelmode_fixup_or_oops+0x23c/0x2b0
[ 48.120937][ T5019] ? __bad_area_nosemaphore+0x390/0x6a0
[ 48.126668][ T5019] ? spurious_kernel_fault+0x376/0x550
[ 48.132195][ T5019] ? do_kern_addr_fault+0x5b/0x70
[ 48.137212][ T5019] ? exc_page_fault+0xba/0xd0
[ 48.141886][ T5019] ? asm_exc_page_fault+0x26/0x30
[ 48.146892][ T5019] ? udf_close_lvid+0x13b/0x5c0
[ 48.151727][ T5019] udf_put_super+0x19c/0x200
[ 48.156317][ T5019] ? udf_close_lvid+0x5c0/0x5c0
[ 48.161149][ T5019] generic_shutdown_super+0x158/0x480
[ 48.166522][ T5019] kill_block_super+0x64/0xb0
[ 48.171177][ T5019] deactivate_locked_super+0x9a/0x170
[ 48.176529][ T5019] deactivate_super+0xde/0x100
[ 48.181270][ T5019] cleanup_mnt+0x222/0x3d0
[ 48.185668][ T5019] task_work_run+0x14d/0x240
[ 48.190242][ T5019] ? task_work_cancel+0x30/0x30
[ 48.195075][ T5019] ptrace_notify+0x10c/0x130
[ 48.199642][ T5019] syscall_exit_to_user_mode_prepare+0x120/0x220
[ 48.205973][ T5019] syscall_exit_to_user_mode+0xd/0x50
[ 48.211326][ T5019] do_syscall_64+0x44/0xb0
[ 48.215717][ T5019] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 48.221606][ T5019] RIP: 0033:0x7f26fc2945c7
[ 48.226611][ T5019] 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
[ 48.246200][ T5019] RSP: 002b:00007ffced142078 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[ 48.254593][ T5019] RAX: 0000000000000000 RBX: 000000000000ba74 RCX: 00007f26fc2945c7
[ 48.262542][ T5019] RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffced142130
[ 48.270510][ T5019] RBP: 00007ffced142130 R08: 0000000000000000 R09: 0000000000000000
[ 48.278462][ T5019] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffced1431a0
[ 48.286431][ T5019] R13: 00005555566886c0 R14: 431bde82d7b634db R15: 00007ffced1431c0
[ 48.294385][ T5019] </TASK>
[ 48.297396][ T5019] Modules linked in:
[ 48.301279][ T5019] CR2: ffffed1018e6ff7d
[ 48.305406][ T5019] ---[ end trace 0000000000000000 ]---
[ 48.310837][ T5019] RIP: 0010:udf_close_lvid+0x13b/0x5c0
[ 48.316285][ T5019] Code: 84 24 c0 00 00 00 31 f6 48 89 c7 48 89 44 24 08 e8 4a 65 47 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
[ 48.335899][ T5019] RSP: 0018:ffffc90003a8fd00 EFLAGS: 00010216
[ 48.341946][ T5019] RAX: dffffc0000000000 RBX: ffff8880c737fbd0 RCX: fffff52000751f7e
[ 48.349916][ T5019] RDX: 1ffff11018e6ff7d RSI: ffffffff8ac808e0 RDI: ffff8880c737fbe8
[ 48.357956][ T5019] RBP: ffff888075956658 R08: 0000000000000000 R09: fffffbfff1d57082
[ 48.365921][ T5019] R10: ffffc90003a8fd00 R11: 0000000000094000 R12: ffff88801a778c00
[ 48.373903][ T5019] R13: ffff888029860000 R14: ffff88807457b000 R15: ffff88801824c940
[ 48.381853][ T5019] FS: 0000555556687380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
[ 48.390762][ T5019] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 48.397328][ T5019] CR2: ffffed1018e6ff7d CR3: 000000001e88f000 CR4: 0000000000350ee0
[ 48.405279][ T5019] Kernel panic - not syncing: Fatal exception
[ 48.412085][ T5019] Kernel Offset: disabled
[ 48.416479][ T5019] Rebooting in 86400 seconds..