./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4207923935
<...>
[ 92.313152][ T23] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.1.21' (ED25519) to the list of known hosts.
execve("./syz-executor4207923935", ["./syz-executor4207923935"], 0x7fff90e6bc60 /* 10 vars */) = 0
brk(NULL) = 0x555579eb7000
brk(0x555579eb7d00) = 0x555579eb7d00
arch_prctl(ARCH_SET_FS, 0x555579eb7380) = 0
set_tid_address(0x555579eb7650) = 5835
set_robust_list(0x555579eb7660, 24) = 0
rseq(0x555579eb7ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor4207923935", 4096) = 28
getrandom("\xf0\x4a\x5e\x51\xef\x93\xe7\x03", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555579eb7d00
brk(0x555579ed8d00) = 0x555579ed8d00
brk(0x555579ed9000) = 0x555579ed9000
mprotect(0x7f0b4316c000, 16384, PROT_READ) = 0
mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000
mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000
mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000
openat(AT_FDCWD, "/proc/self/make-it-fail", O_WRONLY) = 3
close(3) = 0
openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_WRONLY) = 3
close(3) = 0
openat(AT_FDCWD, "/sys/kernel/debug/failslab/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3
write(3, "N", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/sys/kernel/debug/fail_futex/ignore-private", O_WRONLY|O_CLOEXEC) = 3
write(3, "N", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", O_WRONLY|O_CLOEXEC) = 3
write(3, "N", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3
write(3, "N", 1) = 1
close(3) = 0
openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/min-order", O_WRONLY|O_CLOEXEC) = 3
write(3, "0", 1) = 1
close(3) = 0
mkdir("./syzkaller.36pIIP", 0700) = 0
chmod("./syzkaller.36pIIP", 0777) = 0
chdir("./syzkaller.36pIIP") = 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 5836 attached
, child_tidptr=0x555579eb7650) = 5836
[pid 5836] set_robust_list(0x555579eb7660, 24) = 0
[pid 5836] chdir("./0") = 0
[pid 5836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5836] setpgid(0, 0) = 0
[pid 5836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5836] write(3, "1000", 4) = 4
[pid 5836] close(3) = 0
[pid 5836] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5836] write(1, "executing program\n", 18executing program
) = 18
[pid 5836] memfd_create("syzkaller", 0) = 3
[pid 5836] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0b3ac00000
[pid 5836] 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"..., 16777216) = 16777216
[pid 5836] munmap(0x7f0b3ac00000, 138412032) = 0
[pid 5836] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5836] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5836] close(3) = 0
[pid 5836] close(4) = 0
[pid 5836] mkdir("./bus", 0777) = 0
[ 98.284999][ T5836] loop0: detected capacity change from 0 to 32768
[ 98.321029][ T5836] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz-executor420 (5836)
[ 98.361165][ T5836] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d
[ 98.373173][ T5836] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm
[ 98.485187][ T5836] BTRFS info (device loop0): rebuilding free space tree
[ 98.521063][ T5836] BTRFS info (device loop0): disabling free space tree
[pid 5836] mount("/dev/loop0", "./bus", "btrfs", MS_NOEXEC, "barrier,autodefrag,ref_verify,compress=no,clear_cache,noacl,max_inline=074t,barrier,nospace_cache,") = 0
[pid 5836] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3
[pid 5836] chdir("./bus") = 0
[pid 5836] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5836] ioctl(4, LOOP_CLR_FD) = 0
[pid 5836] close(4) = 0
[ 98.528066][ T5836] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[ 98.538053][ T5836] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[pid 5836] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4
[pid 5836] write(4, "7", 1) = 1
[pid 5836] truncate("./file1", 3936) = -1 ENOMEM (Cannot allocate memory)
[pid 5836] exit_group(0) = ?
[ 98.609227][ T5836] FAULT_INJECTION: forcing a failure.
[ 98.609227][ T5836] name failslab, interval 1, probability 0, space 0, times 1
[ 98.622234][ T5836] CPU: 0 UID: 0 PID: 5836 Comm: syz-executor420 Not tainted 6.14.0-rc2-next-20250214-syzkaller #0
[ 98.622255][ T5836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 98.622269][ T5836] Call Trace:
[ 98.622276][ T5836]
[ 98.622283][ T5836] dump_stack_lvl+0x241/0x360
[ 98.622337][ T5836] ? __pfx_dump_stack_lvl+0x10/0x10
[ 98.622357][ T5836] ? __pfx__printk+0x10/0x10
[ 98.622380][ T5836] ? fs_reclaim_acquire+0x93/0x130
[ 98.622401][ T5836] ? __pfx___might_resched+0x10/0x10
[ 98.622423][ T5836] ? find_inode+0x405/0x480
[ 98.622450][ T5836] should_fail_ex+0x40a/0x550
[ 98.622481][ T5836] should_failslab+0xac/0x100
[ 98.622518][ T5836] ? btrfs_iget+0x1b7/0x2b0
[ 98.622532][ T5836] kmem_cache_alloc_noprof+0x70/0x380
[ 98.622563][ T5836] btrfs_iget+0x1b7/0x2b0
[ 98.622577][ T5836] ? lockdep_hardirqs_on+0x99/0x150
[ 98.622605][ T5836] ? __pfx_btrfs_iget+0x10/0x10
[ 98.622619][ T5836] ? btrfs_lookup_dentry+0x382/0x1640
[ 98.622642][ T5836] ? btrfs_lookup_dentry+0x382/0x1640
[ 98.622677][ T5836] btrfs_lookup_dentry+0x407/0x1640
[ 98.622709][ T5836] ? __pfx_btrfs_lookup_dentry+0x10/0x10
[ 98.622729][ T5836] ? d_alloc_parallel+0x14dd/0x1630
[ 98.622760][ T5836] ? d_alloc_parallel+0x311/0x1630
[ 98.622789][ T5836] ? __pfx_lockdep_init_map_type+0x10/0x10
[ 98.622836][ T5836] btrfs_lookup+0x1d/0x40
[ 98.622857][ T5836] __lookup_slow+0x296/0x400
[ 98.622881][ T5836] ? __pfx___lookup_slow+0x10/0x10
[ 98.622916][ T5836] ? lookup_fast+0x1a8/0x5a0
[ 98.622938][ T5836] lookup_slow+0x53/0x70
[ 98.622959][ T5836] walk_component+0x2eb/0x410
[ 98.622983][ T5836] path_lookupat+0x169/0x440
[ 98.623012][ T5836] filename_lookup+0x2a6/0x670
[ 98.623030][ T5836] ? __virt_addr_valid+0x183/0x530
[ 98.623056][ T5836] ? __pfx_filename_lookup+0x10/0x10
[ 98.623108][ T5836] ? strncpy_from_user+0x150/0x280
[ 98.623134][ T5836] ? getname_flags+0x1e3/0x530
[ 98.623163][ T5836] user_path_at+0x3a/0x60
[ 98.623182][ T5836] do_sys_truncate+0xa4/0x190
[ 98.623203][ T5836] ? __pfx_do_sys_truncate+0x10/0x10
[ 98.623224][ T5836] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 98.623249][ T5836] ? do_syscall_64+0x100/0x230
[ 98.623276][ T5836] __x64_sys_truncate+0x5b/0x70
[ 98.623296][ T5836] do_syscall_64+0xf3/0x230
[ 98.623314][ T5836] ? clear_bhb_loop+0x35/0x90
[ 98.623341][ T5836] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 98.623362][ T5836] RIP: 0033:0x7f0b430facd9
[ 98.623390][ T5836] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1b 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[ 98.623402][ T5836] RSP: 002b:00007ffd348ef378 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
[ 98.623420][ T5836] RAX: ffffffffffffffda RBX: 00007ffd348ef3a0 RCX: 00007f0b430facd9
[ 98.623430][ T5836] RDX: 00007f0b430f9da0 RSI: 0000000000000f60 RDI: 0000400000000080
[pid 5836] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5836, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} ---
umount2("./0", MNT_FORCE|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, 0x555579eb86f0 /* 4 entries */, 32768) = 104
umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./0/binderfs") = 0
[ 98.623442][ T5836] RBP: 0000000000000001 R08: 00007ffd348ef117 R09: 00007ffd348ef3c0
[ 98.623453][ T5836] R10: 0000000000000001 R11: 0000000000000246 R12: 0000400000000080
[ 98.623463][ T5836] R13: 0000000000000000 R14: 431bde82d7b634db R15: 00007ffd348ef3e0
[ 98.623501][ T5836]
[ 98.943013][ T5836] syz-executor420 (5836) used greatest stack depth: 17936 bytes left
[ 98.968344][ T5835] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d
[ 99.014395][ T5835] VFS: Busy inodes after unmount of loop0 (btrfs)
[ 99.014574][ T5835] ------------[ cut here ]------------
[ 99.029537][ T5835] kernel BUG at fs/super.c:652!
[ 99.035270][ T5835] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
[ 99.042230][ T5835] CPU: 0 UID: 0 PID: 5835 Comm: syz-executor420 Not tainted 6.14.0-rc2-next-20250214-syzkaller #0
[ 99.052837][ T5835] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 99.062905][ T5835] RIP: 0010:generic_shutdown_super+0x2ca/0x2d0
[ 99.069170][ T5835] Code: 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 a9 1a ee ff 48 8b 13 48 c7 c7 c0 c4 38 8c 4c 89 e6 e8 87 85 eb fe 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
[ 99.088889][ T5835] RSP: 0018:ffffc900040efbb0 EFLAGS: 00010246
[ 99.094973][ T5835] RAX: 000000000000002f RBX: ffffffff8f0a2e00 RCX: 396f30c0bd2b6800
[ 99.102940][ T5835] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
[ 99.110908][ T5835] RBP: 1ffff11006a300f0 R08: ffffffff81a16efc R09: 1ffff9200081df10
[ 99.118882][ T5835] R10: dffffc0000000000 R11: fffff5200081df11 R12: ffff888035180668
[ 99.126842][ T5835] R13: dffffc0000000000 R14: ffffffff8c6bfa38 R15: ffff888035180780
[ 99.134804][ T5835] FS: 0000555579eb7380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
[ 99.143813][ T5835] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 99.150386][ T5835] CR2: 0000558fa6a88f48 CR3: 0000000075cfa000 CR4: 00000000003526f0
[ 99.158435][ T5835] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 99.166405][ T5835] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 99.174368][ T5835] Call Trace:
[ 99.177644][ T5835]
[ 99.180570][ T5835] ? __die_body+0x5f/0xb0
[ 99.184904][ T5835] ? die+0x9e/0xc0
[ 99.188620][ T5835] ? do_trap+0x15a/0x3a0
[ 99.192858][ T5835] ? generic_shutdown_super+0x2ca/0x2d0
[ 99.198485][ T5835] ? do_error_trap+0x1dc/0x2c0
[ 99.203248][ T5835] ? generic_shutdown_super+0x2ca/0x2d0
[ 99.208797][ T5835] ? __pfx_do_error_trap+0x10/0x10
[ 99.213907][ T5835] ? handle_invalid_op+0x34/0x40
[ 99.218837][ T5835] ? generic_shutdown_super+0x2ca/0x2d0
[ 99.224383][ T5835] ? exc_invalid_op+0x38/0x50
[ 99.229228][ T5835] ? asm_exc_invalid_op+0x1a/0x20
[ 99.234246][ T5835] ? __wake_up_klogd+0xcc/0x110
[ 99.239092][ T5835] ? generic_shutdown_super+0x2ca/0x2d0
[ 99.244891][ T5835] kill_anon_super+0x3b/0x70
[ 99.250415][ T5835] btrfs_kill_super+0x41/0x50
[ 99.255125][ T5835] deactivate_locked_super+0xc4/0x130
[ 99.260514][ T5835] cleanup_mnt+0x41f/0x4b0
[ 99.264930][ T5835] ? lockdep_hardirqs_on+0x99/0x150
[ 99.270119][ T5835] task_work_run+0x24f/0x310
[ 99.274702][ T5835] ? __pfx_task_work_run+0x10/0x10
[ 99.279817][ T5835] ? path_umount+0x211/0xf80
[ 99.284401][ T5835] ptrace_notify+0x2d9/0x380
[ 99.288982][ T5835] ? __x64_sys_umount+0x120/0x170
[ 99.294017][ T5835] ? user_path_at+0x44/0x60
[ 99.298523][ T5835] ? __pfx_ptrace_notify+0x10/0x10
[ 99.303631][ T5835] ? kmem_cache_free+0x195/0x410
[ 99.308575][ T5835] ? __x64_sys_umount+0x120/0x170
[ 99.313600][ T5835] syscall_exit_work+0xc7/0x1d0
[ 99.318449][ T5835] syscall_exit_to_user_mode+0x24a/0x340
[ 99.324076][ T5835] do_syscall_64+0x100/0x230
[ 99.328666][ T5835] ? clear_bhb_loop+0x35/0x90
[ 99.333340][ T5835] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 99.339238][ T5835] RIP: 0033:0x7f0b430fbf37
[ 99.343655][ T5835] Code: 07 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
[ 99.363262][ T5835] RSP: 002b:00007ffd348ee288 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[ 99.371671][ T5835] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f0b430fbf37
[ 99.379635][ T5835] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd348ee340
[ 99.387594][ T5835] RBP: 00007ffd348ee340 R08: 0000000000000000 R09: 0000000000000000
[ 99.395663][ T5835] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd348ef3c0
[ 99.403623][ T5835] R13: 0000555579eb86c0 R14: 431bde82d7b634db R15: 00007ffd348ef3e0
[ 99.411603][ T5835]
[ 99.414608][ T5835] Modules linked in:
[ 99.418981][ T5835] ---[ end trace 0000000000000000 ]---
[ 99.426971][ T5835] RIP: 0010:generic_shutdown_super+0x2ca/0x2d0
[ 99.433246][ T5835] Code: 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 a9 1a ee ff 48 8b 13 48 c7 c7 c0 c4 38 8c 4c 89 e6 e8 87 85 eb fe 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
[ 99.453270][ T5835] RSP: 0018:ffffc900040efbb0 EFLAGS: 00010246
[ 99.459415][ T5835] RAX: 000000000000002f RBX: ffffffff8f0a2e00 RCX: 396f30c0bd2b6800
[ 99.467574][ T5835] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
[ 99.475766][ T5835] RBP: 1ffff11006a300f0 R08: ffffffff81a16efc R09: 1ffff9200081df10
[ 99.484133][ T5835] R10: dffffc0000000000 R11: fffff5200081df11 R12: ffff888035180668
[ 99.492530][ T5835] R13: dffffc0000000000 R14: ffffffff8c6bfa38 R15: ffff888035180780
[ 99.500601][ T5835] FS: 0000555579eb7380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
[ 99.509662][ T5835] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 99.516613][ T5835] CR2: 0000558fa6a88f48 CR3: 0000000075cfa000 CR4: 00000000003526f0
[ 99.525078][ T5835] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 99.533082][ T5835] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 99.541104][ T5835] Kernel panic - not syncing: Fatal exception
[ 99.547450][ T5835] Kernel Offset: disabled
[ 99.551786][ T5835] Rebooting in 86400 seconds..