./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1303150803
<...>
Warning: Permanently added '10.128.10.6' (ED25519) to the list of known hosts.
execve("./syz-executor1303150803", ["./syz-executor1303150803"], 0x7ffda2da81e0 /* 10 vars */) = 0
brk(NULL) = 0x555555d2c000
brk(0x555555d2cd00) = 0x555555d2cd00
arch_prctl(ARCH_SET_FS, 0x555555d2c380) = 0
set_tid_address(0x555555d2c650) = 5030
set_robust_list(0x555555d2c660, 24) = 0
rseq(0x555555d2cca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1303150803", 4096) = 28
getrandom("\x1e\x53\x03\xcf\x07\xc0\xcc\x80", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555555d2cd00
brk(0x555555d4dd00) = 0x555555d4dd00
brk(0x555555d4e000) = 0x555555d4e000
mprotect(0x7f3c6d315000, 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.eqhRM2", 0700) = 0
chmod("./syzkaller.eqhRM2", 0777) = 0
chdir("./syzkaller.eqhRM2") = 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 5031 attached
, child_tidptr=0x555555d2c650) = 5031
[pid 5031] set_robust_list(0x555555d2c660, 24) = 0
[pid 5031] chdir("./0") = 0
[pid 5031] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5031] setpgid(0, 0) = 0
[pid 5031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5031] write(3, "1000", 4) = 4
[pid 5031] close(3) = 0
[pid 5031] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5031] memfd_create("syzkaller", 0) = 3
[pid 5031] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3c64e42000
[pid 5031] 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 5031] munmap(0x7f3c64e42000, 138412032) = 0
[pid 5031] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5031] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5031] close(3) = 0
[pid 5031] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0
[ 57.509577][ T5031] syz-executor130[5031]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set
[ 57.540478][ T5031] loop0: detected capacity change from 0 to 2048
[pid 5031] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "udf", MS_NODIRATIME, "") = 0
[pid 5031] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3
[pid 5031] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0
[pid 5031] ioctl(4, LOOP_CLR_FD) = 0
[pid 5031] close(4) = 0
[pid 5031] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4
[pid 5031] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0
[pid 5031] memfd_create("syzkaller", 0) = 5
[pid 5031] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3c64e42000
[ 57.556466][ T5031] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
[pid 5031] write(5, "\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\x00\x00\x00\x00\x00\x00\x00\x01\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 5031] munmap(0x7f3c64e42000, 138412032) = 0
[pid 5031] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid 5031] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy)
[pid 5031] ioctl(6, LOOP_CLR_FD) = 0
[pid 5031] ioctl(6, LOOP_SET_FD, 5) = -1 EBUSY (Device or resource busy)
[pid 5031] close(6) = 0
[pid 5031] close(5) = 0
[pid 5031] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_NOATIME|0x3c) = 5
[pid 5031] 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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5031] exit_group(0) = ?
[pid 5031] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5031, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 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, 0x555555d2d6f0 /* 4 entries */, 32768) = 352
[ 57.776727][ T5030] ==================================================================
[ 57.784922][ T5030] BUG: KASAN: use-after-free in crc_itu_t+0x1d5/0x2a0
[ 57.791722][ T5030] Read of size 1 at addr ffff8880747a1000 by task syz-executor130/5030
[ 57.799948][ T5030]
[ 57.802300][ T5030] CPU: 1 PID: 5030 Comm: syz-executor130 Not tainted 6.6.0-syzkaller-00207-g14ab6d425e80 #0
[ 57.812415][ T5030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 57.822453][ T5030] Call Trace:
[ 57.825855][ T5030]
[ 57.828773][ T5030] dump_stack_lvl+0x1e7/0x2d0
[ 57.833523][ T5030] ? nf_tcp_handle_invalid+0x650/0x650
[ 57.838970][ T5030] ? panic+0x770/0x770
[ 57.843024][ T5030] ? _printk+0xd5/0x120
[ 57.847173][ T5030] print_report+0x163/0x540
[ 57.851672][ T5030] ? ktime_get_real_ts64+0x460/0x460
[ 57.856948][ T5030] ? __mutex_lock+0x2ee/0xd60
[ 57.861613][ T5030] ? time64_to_tm+0x331/0x4d0
[ 57.866276][ T5030] ? __virt_addr_valid+0x22f/0x2e0
[ 57.871457][ T5030] ? __phys_addr+0xba/0x170
[ 57.875944][ T5030] ? crc_itu_t+0x1d5/0x2a0
[ 57.880348][ T5030] kasan_report+0x175/0x1b0
[ 57.884841][ T5030] ? crc_itu_t+0x1d5/0x2a0
[ 57.889247][ T5030] ? pvclock_gtod_unregister_notifier+0x50/0x50
[ 57.895473][ T5030] crc_itu_t+0x1d5/0x2a0
[ 57.899705][ T5030] udf_sync_fs+0x1d2/0x380
[ 57.904107][ T5030] ? udf_put_super+0x160/0x160
[ 57.908855][ T5030] ? get_nr_dirty_inodes+0x1c7/0x210
[ 57.914129][ T5030] sync_filesystem+0xec/0x220
[ 57.918794][ T5030] generic_shutdown_super+0x72/0x2c0
[ 57.924068][ T5030] kill_block_super+0x44/0x90
[ 57.928731][ T5030] deactivate_locked_super+0xa4/0x110
[ 57.934174][ T5030] cleanup_mnt+0x426/0x4c0
[ 57.938575][ T5030] ? _raw_spin_unlock_irq+0x23/0x50
[ 57.943758][ T5030] task_work_run+0x24a/0x300
[ 57.948341][ T5030] ? task_work_cancel+0x2b0/0x2b0
[ 57.953354][ T5030] ? lockdep_hardirqs_on+0x98/0x140
[ 57.958540][ T5030] ? __x64_sys_umount+0x126/0x170
[ 57.963551][ T5030] ptrace_notify+0x2cd/0x380
[ 57.968135][ T5030] ? do_notify_parent+0x1100/0x1100
[ 57.973329][ T5030] ? __x64_sys_umount+0x126/0x170
[ 57.978337][ T5030] ? path_umount+0xf40/0xf40
[ 57.982912][ T5030] ? syscall_enter_from_user_mode+0x32/0x230
[ 57.988877][ T5030] syscall_exit_to_user_mode+0x15c/0x280
[ 57.994498][ T5030] do_syscall_64+0x4d/0xc0
[ 57.998908][ T5030] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 58.004789][ T5030] RIP: 0033:0x7f3c6d282747
[ 58.009198][ T5030] 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
[ 58.028873][ T5030] RSP: 002b:00007ffe52c8e468 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[ 58.037274][ T5030] RAX: 0000000000000000 RBX: 000000000000e088 RCX: 00007f3c6d282747
[ 58.045229][ T5030] RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffe52c8e520
[ 58.053181][ T5030] RBP: 00007ffe52c8e520 R08: 0000000000000000 R09: 0000000000000000
[ 58.061134][ T5030] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffe52c8f590
[ 58.069089][ T5030] R13: 0000555555d2d6c0 R14: 431bde82d7b634db R15: 00007ffe52c8f5b0
[ 58.077052][ T5030]
[ 58.080052][ T5030]
[ 58.082383][ T5030] The buggy address belongs to the physical page:
[ 58.088775][ T5030] page:ffffea0001d1e840 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x747a1
[ 58.099520][ T5030] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
[ 58.106870][ T5030] page_type: 0xffffffff()
[ 58.111181][ T5030] raw: 00fff00000000000 ffffea0001cce548 ffffea0001cb1e48 0000000000000000
[ 58.119752][ T5030] raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
[ 58.128486][ T5030] page dumped because: kasan: bad access detected
[ 58.134877][ T5030] page_owner tracks the page as freed
[ 58.140221][ T5030] page last allocated via order 0, migratetype Movable, gfp_mask 0x140dca(GFP_HIGHUSER_MOVABLE|__GFP_COMP|__GFP_ZERO), pid 4887, tgid 4887 (sshd), ts 49269275804, free_ts 49334420678
[ 58.158173][ T5030] post_alloc_hook+0x1e6/0x210
[ 58.162950][ T5030] get_page_from_freelist+0x31db/0x3360
[ 58.168583][ T5030] __alloc_pages+0x255/0x670
[ 58.173520][ T5030] __folio_alloc+0x13/0x30
[ 58.177920][ T5030] vma_alloc_folio+0x48a/0x9a0
[ 58.182694][ T5030] handle_mm_fault+0x2376/0x62b0
[ 58.187621][ T5030] exc_page_fault+0x455/0x860
[ 58.192284][ T5030] asm_exc_page_fault+0x26/0x30
[ 58.197120][ T5030] page last free stack trace:
[ 58.201771][ T5030] free_unref_page_prepare+0x8c3/0x9f0
[ 58.207215][ T5030] free_unref_page_list+0x596/0x830
[ 58.212402][ T5030] release_pages+0x2113/0x23f0
[ 58.217147][ T5030] tlb_flush_mmu+0x34c/0x4e0
[ 58.221722][ T5030] tlb_finish_mmu+0xd4/0x1f0
[ 58.226385][ T5030] unmap_region+0x300/0x350
[ 58.230883][ T5030] do_vmi_align_munmap+0x121e/0x1850
[ 58.236152][ T5030] do_vmi_munmap+0x24d/0x2d0
[ 58.240747][ T5030] __vm_munmap+0x230/0x450
[ 58.245145][ T5030] __x64_sys_munmap+0x69/0x80
[ 58.249811][ T5030] do_syscall_64+0x41/0xc0
[ 58.254264][ T5030] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 58.260143][ T5030]
[ 58.262457][ T5030] Memory state around the buggy address:
[ 58.268065][ T5030] ffff8880747a0f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 58.276285][ T5030] ffff8880747a0f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 58.284323][ T5030] >ffff8880747a1000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 58.292370][ T5030] ^
[ 58.296417][ T5030] ffff8880747a1080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 58.304458][ T5030] ffff8880747a1100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 58.312850][ T5030] ==================================================================
[ 58.321455][ T5030] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 58.328742][ T5030] CPU: 1 PID: 5030 Comm: syz-executor130 Not tainted 6.6.0-syzkaller-00207-g14ab6d425e80 #0
[ 58.338880][ T5030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 58.349021][ T5030] Call Trace:
[ 58.352386][ T5030]
[ 58.355302][ T5030] dump_stack_lvl+0x1e7/0x2d0
[ 58.359973][ T5030] ? nf_tcp_handle_invalid+0x650/0x650
[ 58.365517][ T5030] ? panic+0x770/0x770
[ 58.370279][ T5030] ? vscnprintf+0x5d/0x80
[ 58.374599][ T5030] panic+0x30f/0x770
[ 58.379183][ T5030] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 58.385326][ T5030] ? check_panic_on_warn+0x21/0xa0
[ 58.390426][ T5030] ? __memcpy_flushcache+0x2b0/0x2b0
[ 58.395701][ T5030] ? _raw_spin_unlock_irqrestore+0x12c/0x140
[ 58.401673][ T5030] ? _raw_spin_unlock+0x40/0x40
[ 58.406527][ T5030] check_panic_on_warn+0x82/0xa0
[ 58.411626][ T5030] ? crc_itu_t+0x1d5/0x2a0
[ 58.416117][ T5030] end_report+0x6e/0x130
[ 58.420352][ T5030] kasan_report+0x186/0x1b0
[ 58.424844][ T5030] ? crc_itu_t+0x1d5/0x2a0
[ 58.429248][ T5030] ? pvclock_gtod_unregister_notifier+0x50/0x50
[ 58.435476][ T5030] crc_itu_t+0x1d5/0x2a0
[ 58.439711][ T5030] udf_sync_fs+0x1d2/0x380
[ 58.444112][ T5030] ? udf_put_super+0x160/0x160
[ 58.448860][ T5030] ? get_nr_dirty_inodes+0x1c7/0x210
[ 58.454133][ T5030] sync_filesystem+0xec/0x220
[ 58.458807][ T5030] generic_shutdown_super+0x72/0x2c0
[ 58.464254][ T5030] kill_block_super+0x44/0x90
[ 58.469699][ T5030] deactivate_locked_super+0xa4/0x110
[ 58.475057][ T5030] cleanup_mnt+0x426/0x4c0
[ 58.479462][ T5030] ? _raw_spin_unlock_irq+0x23/0x50
[ 58.484663][ T5030] task_work_run+0x24a/0x300
[ 58.489245][ T5030] ? task_work_cancel+0x2b0/0x2b0
[ 58.494257][ T5030] ? lockdep_hardirqs_on+0x98/0x140
[ 58.501183][ T5030] ? __x64_sys_umount+0x126/0x170
[ 58.506301][ T5030] ptrace_notify+0x2cd/0x380
[ 58.510895][ T5030] ? do_notify_parent+0x1100/0x1100
[ 58.516085][ T5030] ? __x64_sys_umount+0x126/0x170
[ 58.521095][ T5030] ? path_umount+0xf40/0xf40
[ 58.525936][ T5030] ? syscall_enter_from_user_mode+0x32/0x230
[ 58.531993][ T5030] syscall_exit_to_user_mode+0x15c/0x280
[ 58.538048][ T5030] do_syscall_64+0x4d/0xc0
[ 58.542775][ T5030] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 58.548686][ T5030] RIP: 0033:0x7f3c6d282747
[ 58.553104][ T5030] 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
[ 58.573561][ T5030] RSP: 002b:00007ffe52c8e468 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[ 58.581966][ T5030] RAX: 0000000000000000 RBX: 000000000000e088 RCX: 00007f3c6d282747
[ 58.589923][ T5030] RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffe52c8e520
[ 58.597880][ T5030] RBP: 00007ffe52c8e520 R08: 0000000000000000 R09: 0000000000000000
[ 58.605836][ T5030] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffe52c8f590
[ 58.613791][ T5030] R13: 0000555555d2d6c0 R14: 431bde82d7b634db R15: 00007ffe52c8f5b0
[ 58.622102][ T5030]
[ 58.625289][ T5030] Kernel Offset: disabled
[ 58.629597][ T5030] Rebooting in 86400 seconds..