./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor769239017

<...>
DUID 00:04:7b:a2:e0:73:6b:5f:a9:8e:d4:f6:53:82:b5:31:a7:5e
forked to background, child pid 4660
[   37.555233][ T4661] 8021q: adding VLAN 0 to HW filter on device bond0
[   37.581754][ T4661] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.10.14' (ECDSA) to the list of known hosts.
execve("./syz-executor769239017", ["./syz-executor769239017"], 0x7fffdc3ee660 /* 10 vars */) = 0
brk(NULL)                               = 0x555556906000
brk(0x555556906c40)                     = 0x555556906c40
arch_prctl(ARCH_SET_FS, 0x555556906300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor769239017", 4096) = 27
brk(0x555556927c40)                     = 0x555556927c40
brk(0x555556928000)                     = 0x555556928000
mprotect(0x7f58e0377000, 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
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4996 attached
, child_tidptr=0x5555569065d0) = 4996
[pid  4996] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  4996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4996] setsid()                    = 1
[pid  4996] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  4996] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  4996] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  4996] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  4996] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  4996] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  4996] unshare(CLONE_NEWNS)        = 0
[pid  4996] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  4996] unshare(CLONE_NEWIPC)       = 0
[pid  4996] unshare(CLONE_NEWCGROUP)    = 0
[pid  4996] unshare(CLONE_NEWUTS)       = 0
[pid  4996] unshare(CLONE_SYSVSEM)      = 0
[pid  4996] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  4996] write(3, "16777216", 8)     = 8
[pid  4996] close(3)                    = 0
[pid  4996] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  4996] write(3, "536870912", 9)    = 9
[pid  4996] close(3)                    = 0
[pid  4996] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  4996] write(3, "1024", 4)         = 4
[pid  4996] close(3)                    = 0
[pid  4996] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  4996] write(3, "8192", 4)         = 4
[pid  4996] close(3)                    = 0
[pid  4996] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  4996] write(3, "1024", 4)         = 4
[pid  4996] close(3)                    = 0
[pid  4996] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  4996] write(3, "1024", 4)         = 4
[pid  4996] close(3)                    = 0
[pid  4996] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  4996] write(3, "1024 1048576 500 1024", 21) = 21
[pid  4996] close(3)                    = 0
[pid  4996] getpid()                    = 1
[pid  4996] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  4996] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  4996] unshare(CLONE_NEWNET)       = 0
[pid  4996] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  4996] write(3, "0 65535", 7)      = 7
[pid  4996] close(3)                    = 0
[pid  4996] mkdir("/dev/binderfs", 0777) = 0
[pid  4996] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid  4996] symlink("/dev/binderfs", "./binderfs") = 0
[pid  4996] memfd_create("syzkaller", 0) = 3
[pid  4996] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f58d7ea8000
[pid  4996] 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  4996] munmap(0x7f58d7ea8000, 1048576) = 0
[pid  4996] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  4996] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  4996] close(3)                    = 0
[pid  4996] mkdir("./file0", 0777)      = 0
syzkaller login: [   66.458402][ T4996] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4996 'syz-executor769'
[   66.485282][ T4996] loop0: detected capacity change from 0 to 2048
[pid  4996] mount("/dev/loop0", "./file0", "udf", MS_NOEXEC|MS_POSIXACL|MS_LAZYTIME, "fileset=00000000000000065537,iocharset=macgreek,mode=00000000000000000000033,partition=0000000000000"...) = 0
[pid  4996] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  4996] ioctl(4, LOOP_CLR_FD)       = 0
[pid  4996] close(4)                    = 0
[pid  4996] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4
[pid  4996] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid  4996] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid  4996] memfd_create("syzkaller", 0) = 6
[pid  4996] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = -1 ENOMEM (Cannot allocate memory)
[pid  4996] close(6)                    = 0
[   66.500228][ T4996] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
[pid  4996] 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\x67\x66\x73\x32\x00\x00\x00\x00\x00\x00\x00\x00\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  4996] exit_group(1)               = ?
[   66.681621][ T4996] BUG: unable to handle page fault for address: ffffed101803c40d
[   66.689390][ T4996] #PF: supervisor read access in kernel mode
[   66.695368][ T4996] #PF: error_code(0x0000) - not-present page
[   66.701368][ T4996] PGD 23ffee067 P4D 23ffee067 PUD 13fff5067 PMD 0 
[   66.707893][ T4996] Oops: 0000 [#1] PREEMPT SMP KASAN
[   66.713094][ T4996] CPU: 0 PID: 4996 Comm: syz-executor769 Not tainted 6.3.0-syzkaller-12728-g348551ddaf31 #0
[   66.723158][ T4996] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
[   66.733216][ T4996] RIP: 0010:udf_close_lvid+0x14c/0x9a0
[   66.738714][ T4996] Code: dc 49 83 c4 50 0f 84 f3 00 00 00 49 8d bf c0 00 00 00 48 89 7c 24 40 31 f6 e8 b0 1c b7 07 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 3d 05 00 00 4c 89 7c 24 18 4c 89 74 24
[   66.758345][ T4996] RSP: 0018:ffffc9000398fa60 EFLAGS: 00010a02
[   66.764437][ T4996] RAX: 1ffff1101803c40d RBX: ffff8880737dd000 RCX: 0000000000000001
[   66.772420][ T4996] RDX: 0000000000000000 RSI: ffffffff8b384960 RDI: ffff8880c01e2068
[   66.780422][ T4996] RBP: ffffc9000398fb48 R08: dffffc0000000000 R09: fffffbfff1cab886
[   66.788399][ T4996] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880c01e2050
[   66.796376][ T4996] R13: dffffc0000000000 R14: 1ffff92000731f58 R15: ffff8880245d4400
[   66.804353][ T4996] FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
[   66.813284][ T4996] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   66.819873][ T4996] CR2: ffffed101803c40d CR3: 000000000cd30000 CR4: 00000000003506f0
[   66.827852][ T4996] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   66.835829][ T4996] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   66.843822][ T4996] Call Trace:
[   66.847119][ T4996]  <TASK>
[   66.850050][ T4996]  ? hook_inode_free_security+0xb0/0xb0
[   66.855606][ T4996]  ? udf_open_lvid+0x5b0/0x5b0
[   66.860374][ T4996]  ? iput+0x37e/0x8f0
[   66.864373][ T4996]  ? clear_inode+0x150/0x150
[   66.868984][ T4996]  ? module_put+0x144/0x2e0
[   66.873487][ T4996]  udf_put_super+0xcd/0x160
[   66.878018][ T4996]  ? udf_free_in_core_inode+0x30/0x30
[   66.883403][ T4996]  generic_shutdown_super+0x134/0x340
[   66.888783][ T4996]  kill_block_super+0x84/0xf0
[   66.893463][ T4996]  deactivate_locked_super+0xa4/0x110
[   66.898841][ T4996]  cleanup_mnt+0x426/0x4c0
[   66.903285][ T4996]  ? _raw_spin_unlock_irq+0x23/0x50
[   66.908490][ T4996]  task_work_run+0x24a/0x300
[   66.913176][ T4996]  ? kasan_quarantine_put+0xd8/0x230
[   66.918477][ T4996]  ? task_work_cancel+0x2b0/0x2b0
[   66.923511][ T4996]  ? kmem_cache_free+0x297/0x520
[   66.928474][ T4996]  ? do_exit+0x68a/0x2290
[   66.932828][ T4996]  do_exit+0x68f/0x2290
[   66.937008][ T4996]  ? put_task_struct+0x80/0x80
[   66.941803][ T4996]  ? lockdep_hardirqs_on_prepare+0x43c/0x7a0
[   66.947804][ T4996]  ? print_irqtrace_events+0x220/0x220
[   66.953278][ T4996]  ? _raw_spin_unlock_irq+0x23/0x50
[   66.958482][ T4996]  ? lockdep_hardirqs_on+0x98/0x140
[   66.963704][ T4996]  do_group_exit+0x206/0x2c0
[   66.968309][ T4996]  __x64_sys_exit_group+0x3f/0x40
[   66.973340][ T4996]  do_syscall_64+0x41/0xc0
[   66.977781][ T4996]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   66.983683][ T4996] RIP: 0033:0x7f58e02f3fa9
[   66.988109][ T4996] Code: Unable to access opcode bytes at 0x7f58e02f3f7f.
[   66.995224][ T4996] RSP: 002b:00007fff42e64db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   67.003738][ T4996] RAX: ffffffffffffffda RBX: 00007f58e037d3f0 RCX: 00007f58e02f3fa9
[   67.011728][ T4996] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   67.019708][ T4996] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f58e0377e40
[   67.027685][ T4996] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007f58e037d3f0
[   67.035664][ T4996] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
[   67.043671][ T4996]  </TASK>
[   67.046697][ T4996] Modules linked in:
[   67.050597][ T4996] CR2: ffffed101803c40d
[   67.054757][ T4996] ---[ end trace 0000000000000000 ]---
[   67.060212][ T4996] RIP: 0010:udf_close_lvid+0x14c/0x9a0
[   67.065702][ T4996] Code: dc 49 83 c4 50 0f 84 f3 00 00 00 49 8d bf c0 00 00 00 48 89 7c 24 40 31 f6 e8 b0 1c b7 07 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 3d 05 00 00 4c 89 7c 24 18 4c 89 74 24
[   67.085423][ T4996] RSP: 0018:ffffc9000398fa60 EFLAGS: 00010a02
[   67.091509][ T4996] RAX: 1ffff1101803c40d RBX: ffff8880737dd000 RCX: 0000000000000001
[   67.099487][ T4996] RDX: 0000000000000000 RSI: ffffffff8b384960 RDI: ffff8880c01e2068
[   67.107493][ T4996] RBP: ffffc9000398fb48 R08: dffffc0000000000 R09: fffffbfff1cab886
[   67.115486][ T4996] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880c01e2050
[   67.123475][ T4996] R13: dffffc0000000000 R14: 1ffff92000731f58 R15: ffff8880245d4400
[   67.131459][ T4996] FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
[   67.140415][ T4996] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   67.147007][ T4996] CR2: ffffed101803c40d CR3: 000000000cd30000 CR4: 00000000003506f0
[   67.154989][ T4996] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   67.162964][ T4996] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   67.170952][ T4996] Kernel panic - not syncing: Fatal exception
[   67.177274][ T4996] Kernel Offset: disabled
[   67.181605][ T4996] Rebooting in 86400 seconds..