./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3404800968
<...>
Warning: Permanently added '10.128.1.146' (ED25519) to the list of known hosts.
execve("./syz-executor3404800968", ["./syz-executor3404800968"], 0x7ffcb6ef1a20 /* 10 vars */) = 0
brk(NULL) = 0x555555b2b000
brk(0x555555b2bd00) = 0x555555b2bd00
arch_prctl(ARCH_SET_FS, 0x555555b2b380) = 0
set_tid_address(0x555555b2b650) = 5061
set_robust_list(0x555555b2b660, 24) = 0
rseq(0x555555b2bca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor3404800968", 4096) = 28
getrandom("\x0a\xba\x26\xd7\xc7\x93\x0b\x04", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555555b2bd00
brk(0x555555b4cd00) = 0x555555b4cd00
brk(0x555555b4d000) = 0x555555b4d000
mprotect(0x7f2a7641f000, 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.l96L1N", 0700) = 0
chmod("./syzkaller.l96L1N", 0777) = 0
chdir("./syzkaller.l96L1N") = 0
mkdir("./0", 0777) = 0
[ 75.255149][ T27] audit: type=1400 audit(1702620559.614:83): avc: denied { execmem } for pid=5061 comm="syz-executor340" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
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 5062 attached
, child_tidptr=0x555555b2b650) = 5062
[pid 5062] set_robust_list(0x555555b2b660, 24) = 0
[pid 5062] chdir("./0") = 0
[pid 5062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5062] setpgid(0, 0) = 0
[pid 5062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5062] write(3, "1000", 4) = 4
[pid 5062] close(3) = 0
[pid 5062] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5062] memfd_create("syzkaller", 0) = 3
[pid 5062] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2a6df4e000
[ 75.311767][ T27] audit: type=1400 audit(1702620559.674:84): avc: denied { read write } for pid=5061 comm="syz-executor340" name="loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[ 75.336179][ T27] audit: type=1400 audit(1702620559.674:85): avc: denied { open } for pid=5061 comm="syz-executor340" path="/dev/loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[pid 5062] write(3, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\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\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152
[ 75.362638][ T27] audit: type=1400 audit(1702620559.674:86): avc: denied { ioctl } for pid=5061 comm="syz-executor340" path="/dev/loop0" dev="devtmpfs" ino=648 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[pid 5062] munmap(0x7f2a6df4e000, 138412032) = 0
[pid 5062] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5062] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5062] close(3) = 0
[pid 5062] mkdir("./file0", 0777) = 0
[ 75.456746][ T5062] loop0: detected capacity change from 0 to 4096
[ 75.471533][ T27] audit: type=1400 audit(1702620559.824:87): avc: denied { mounton } for pid=5062 comm="syz-executor340" path="/root/syzkaller.l96L1N/0/file0" dev="sda1" ino=1930 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[ 75.505640][ T5062] ntfs: volume version 3.1.
[ 75.515067][ T5062] ==================================================================
[ 75.523130][ T5062] BUG: KASAN: use-after-free in ntfs_lookup_inode_by_name+0x2fe2/0x3120
[ 75.531463][ T5062] Read of size 8 at addr ffff88807348755a by task syz-executor340/5062
[ 75.539680][ T5062]
[ 75.541985][ T5062] CPU: 1 PID: 5062 Comm: syz-executor340 Not tainted 6.7.0-rc5-syzkaller-00125-gc7402612e2e6 #0
[ 75.552377][ T5062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
[ 75.562416][ T5062] Call Trace:
[ 75.565679][ T5062]
[ 75.568617][ T5062] dump_stack_lvl+0xd9/0x1b0
[ 75.573199][ T5062] print_report+0xc4/0x620
[ 75.577598][ T5062] ? __virt_addr_valid+0x5e/0x2d0
[ 75.582608][ T5062] ? __phys_addr+0xc6/0x140
[ 75.587121][ T5062] kasan_report+0xda/0x110
[ 75.591522][ T5062] ? ntfs_lookup_inode_by_name+0x2fe2/0x3120
[ 75.597485][ T5062] ? ntfs_lookup_inode_by_name+0x2fe2/0x3120
[ 75.603460][ T5062] ntfs_lookup_inode_by_name+0x2fe2/0x3120
[ 75.609271][ T5062] ? _raw_spin_unlock+0x28/0x40
[ 75.614128][ T5062] ? ntfs_read_locked_inode+0x5860/0x5860
[ 75.619855][ T5062] ? preempt_count_sub+0x160/0x160
[ 75.624970][ T5062] ntfs_fill_super+0x4622/0x9100
[ 75.629916][ T5062] ? parse_options+0x1db0/0x1db0
[ 75.634856][ T5062] ? lock_sync+0x190/0x190
[ 75.639292][ T5062] ? parse_options+0x1db0/0x1db0
[ 75.644235][ T5062] ? preempt_count_sub+0x160/0x160
[ 75.649346][ T5062] ? sb_set_blocksize+0xf6/0x120
[ 75.654295][ T5062] ? parse_options+0x1db0/0x1db0
[ 75.659236][ T5062] mount_bdev+0x1f3/0x2e0
[ 75.663577][ T5062] ? sget+0x640/0x640
[ 75.667565][ T5062] ? ntfs_rl_punch_nolock+0x15d0/0x15d0
[ 75.673117][ T5062] legacy_get_tree+0x109/0x220
[ 75.677882][ T5062] vfs_get_tree+0x8c/0x370
[ 75.682306][ T5062] path_mount+0x1492/0x1ed0
[ 75.686817][ T5062] ? lockdep_hardirqs_on+0x7d/0x110
[ 75.692023][ T5062] ? finish_automount+0xa40/0xa40
[ 75.697057][ T5062] ? putname+0x12e/0x170
[ 75.701303][ T5062] __x64_sys_mount+0x293/0x310
[ 75.706076][ T5062] ? copy_mnt_ns+0xb60/0xb60
[ 75.710673][ T5062] ? syscall_trace_enter.constprop.0+0xaf/0x1e0
[ 75.716920][ T5062] do_syscall_64+0x40/0x110
[ 75.721432][ T5062] entry_SYSCALL_64_after_hwframe+0x63/0x6b
[ 75.727337][ T5062] RIP: 0033:0x7f2a7638e46a
[ 75.731749][ T5062] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[ 75.751355][ T5062] RSP: 002b:00007fff678e6678 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
[ 75.759766][ T5062] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2a7638e46a
[ 75.767733][ T5062] RDX: 000000002001ec80 RSI: 000000002001ecc0 RDI: 00007fff678e66c0
[ 75.775702][ T5062] RBP: 0000000000000004 R08: 00007fff678e6700 R09: 000000000001ec63
[ 75.783671][ T5062] R10: 0000000000000000 R11: 0000000000000286 R12: 00007fff678e66c0
[ 75.791638][ T5062] R13: 00007fff678e6700 R14: 0000000000200000 R15: 0000000000000003
[ 75.799612][ T5062]
[ 75.802628][ T5062]
[ 75.804943][ T5062] The buggy address belongs to the physical page:
[ 75.811352][ T5062] page:ffffea0001cd21c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x73487
[ 75.821500][ T5062] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
[ 75.828601][ T5062] page_type: 0xffffffff()
[ 75.832928][ T5062] raw: 00fff00000000000 dead000000000100 dead000000000122 0000000000000000
[ 75.841510][ T5062] raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
[ 75.850089][ T5062] page dumped because: kasan: bad access detected
[ 75.856488][ T5062] page_owner tracks the page as freed
[ 75.861842][ T5062] page last allocated via order 0, migratetype Movable, gfp_mask 0x140dca(GFP_HIGHUSER_MOVABLE|__GFP_COMP|__GFP_ZERO), pid 5050, tgid 5050 (sshd), ts 68024552059, free_ts 68078141414
[ 75.879816][ T5062] post_alloc_hook+0x2d0/0x350
[ 75.884586][ T5062] get_page_from_freelist+0xa25/0x36d0
[ 75.890043][ T5062] __alloc_pages+0x22e/0x2420
[ 75.894719][ T5062] alloc_pages_mpol+0x258/0x5f0
[ 75.899567][ T5062] vma_alloc_folio+0xad/0x220
[ 75.904246][ T5062] __handle_mm_fault+0xe07/0x3d70
[ 75.909273][ T5062] handle_mm_fault+0x47a/0xa10
[ 75.914039][ T5062] do_user_addr_fault+0x30b/0x1000
[ 75.919155][ T5062] exc_page_fault+0x5d/0xc0
[ 75.923665][ T5062] asm_exc_page_fault+0x26/0x30
[ 75.928511][ T5062] page last free stack trace:
[ 75.933201][ T5062] free_unref_page_prepare+0x4fa/0xaa0
[ 75.938662][ T5062] free_unref_page_list+0xe6/0xb40
[ 75.943773][ T5062] release_pages+0x32a/0x14f0
[ 75.948455][ T5062] tlb_batch_pages_flush+0x9a/0x190
[ 75.953651][ T5062] tlb_finish_mmu+0x14b/0x6f0
[ 75.958326][ T5062] unmap_region.constprop.0+0x2e6/0x3b0
[ 75.963878][ T5062] do_vmi_align_munmap+0xde6/0x1600
[ 75.969086][ T5062] do_vmi_munmap+0x20e/0x450
[ 75.973670][ T5062] __vm_munmap+0x144/0x390
[ 75.978083][ T5062] __x64_sys_munmap+0x62/0x80
[ 75.982754][ T5062] do_syscall_64+0x40/0x110
[ 75.987257][ T5062] entry_SYSCALL_64_after_hwframe+0x63/0x6b
[ 75.993159][ T5062]
[ 75.995471][ T5062] Memory state around the buggy address:
[ 76.001097][ T5062] ffff888073487400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 76.009171][ T5062] ffff888073487480: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 76.017227][ T5062] >ffff888073487500: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 76.025280][ T5062] ^
[ 76.032202][ T5062] ffff888073487580: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 76.040259][ T5062] ffff888073487600: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 76.048309][ T5062] ==================================================================
[ 76.056497][ T5062] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 76.063692][ T5062] CPU: 1 PID: 5062 Comm: syz-executor340 Not tainted 6.7.0-rc5-syzkaller-00125-gc7402612e2e6 #0
[ 76.074103][ T5062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
[ 76.084159][ T5062] Call Trace:
[ 76.087444][ T5062]
[ 76.090370][ T5062] dump_stack_lvl+0xd9/0x1b0
[ 76.094967][ T5062] panic+0x6dc/0x790
[ 76.098865][ T5062] ? mark_held_locks+0x9f/0xe0
[ 76.103637][ T5062] ? panic_smp_self_stop+0xa0/0xa0
[ 76.108752][ T5062] ? irqentry_exit+0x3b/0x80
[ 76.113351][ T5062] ? lockdep_hardirqs_on+0x7d/0x110
[ 76.118556][ T5062] ? check_panic_on_warn+0x1f/0xb0
[ 76.123673][ T5062] check_panic_on_warn+0xab/0xb0
[ 76.128616][ T5062] end_report+0x108/0x150
[ 76.132945][ T5062] kasan_report+0xea/0x110
[ 76.137372][ T5062] ? ntfs_lookup_inode_by_name+0x2fe2/0x3120
[ 76.143355][ T5062] ? ntfs_lookup_inode_by_name+0x2fe2/0x3120
[ 76.149338][ T5062] ntfs_lookup_inode_by_name+0x2fe2/0x3120
[ 76.155150][ T5062] ? _raw_spin_unlock+0x28/0x40
[ 76.160001][ T5062] ? ntfs_read_locked_inode+0x5860/0x5860
[ 76.165723][ T5062] ? preempt_count_sub+0x160/0x160
[ 76.170835][ T5062] ntfs_fill_super+0x4622/0x9100
[ 76.175782][ T5062] ? parse_options+0x1db0/0x1db0
[ 76.180729][ T5062] ? lock_sync+0x190/0x190
[ 76.185152][ T5062] ? parse_options+0x1db0/0x1db0
[ 76.190092][ T5062] ? preempt_count_sub+0x160/0x160
[ 76.195206][ T5062] ? sb_set_blocksize+0xf6/0x120
[ 76.200155][ T5062] ? parse_options+0x1db0/0x1db0
[ 76.205099][ T5062] mount_bdev+0x1f3/0x2e0
[ 76.209441][ T5062] ? sget+0x640/0x640
[ 76.213429][ T5062] ? ntfs_rl_punch_nolock+0x15d0/0x15d0
[ 76.218980][ T5062] legacy_get_tree+0x109/0x220
[ 76.223745][ T5062] vfs_get_tree+0x8c/0x370
[ 76.228169][ T5062] path_mount+0x1492/0x1ed0
[ 76.232679][ T5062] ? lockdep_hardirqs_on+0x7d/0x110
[ 76.237886][ T5062] ? finish_automount+0xa40/0xa40
[ 76.242919][ T5062] ? putname+0x12e/0x170
[ 76.247253][ T5062] __x64_sys_mount+0x293/0x310
[ 76.252027][ T5062] ? copy_mnt_ns+0xb60/0xb60
[ 76.256624][ T5062] ? syscall_trace_enter.constprop.0+0xaf/0x1e0
[ 76.262869][ T5062] do_syscall_64+0x40/0x110
[ 76.267379][ T5062] entry_SYSCALL_64_after_hwframe+0x63/0x6b
[ 76.273290][ T5062] RIP: 0033:0x7f2a7638e46a
[ 76.277703][ T5062] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[ 76.297306][ T5062] RSP: 002b:00007fff678e6678 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
[ 76.305719][ T5062] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2a7638e46a
[ 76.313688][ T5062] RDX: 000000002001ec80 RSI: 000000002001ecc0 RDI: 00007fff678e66c0
[ 76.322089][ T5062] RBP: 0000000000000004 R08: 00007fff678e6700 R09: 000000000001ec63
[ 76.330065][ T5062] R10: 0000000000000000 R11: 0000000000000286 R12: 00007fff678e66c0
[ 76.338037][ T5062] R13: 00007fff678e6700 R14: 0000000000200000 R15: 0000000000000003
[ 76.346007][ T5062]
[ 76.349198][ T5062] Kernel Offset: disabled
[ 76.353506][ T5062] Rebooting in 86400 seconds..