./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2151222087

<...>
Warning: Permanently added '10.128.0.191' (ED25519) to the list of known hosts.
execve("./syz-executor2151222087", ["./syz-executor2151222087"], 0x7ffdf3eaa7c0 /* 10 vars */) = 0
brk(NULL)                               = 0x555561818000
brk(0x555561818d00)                     = 0x555561818d00
arch_prctl(ARCH_SET_FS, 0x555561818380) = 0
set_tid_address(0x555561818650)         = 5843
set_robust_list(0x555561818660, 24)     = 0
rseq(0x555561818ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2151222087", 4096) = 28
getrandom("\xa2\x12\x30\x5f\x85\xc7\xd7\xed", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555561818d00
brk(0x555561839d00)                     = 0x555561839d00
brk(0x55556183a000)                     = 0x55556183a000
mprotect(0x7f44911ae000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5844 attached
 <unfinished ...>
[pid  5844] set_robust_list(0x555561818660, 24 <unfinished ...>
[pid  5843] <... clone resumed>, child_tidptr=0x555561818650) = 5844
[pid  5844] <... set_robust_list resumed>) = 0
[pid  5844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5844] getppid()                   = 0
[pid  5844] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  5844] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  5844] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  5844] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  5844] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  5844] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  5844] unshare(CLONE_NEWNS)        = 0
[pid  5844] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  5844] unshare(CLONE_NEWIPC)       = 0
[pid  5844] unshare(CLONE_NEWCGROUP)    = 0
[pid  5844] unshare(CLONE_NEWUTS)       = 0
[pid  5844] unshare(CLONE_SYSVSEM)      = 0
[pid  5844] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5844] write(3, "16777216", 8)     = 8
[pid  5844] close(3)                    = 0
[pid  5844] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  5844] write(3, "536870912", 9)    = 9
[pid  5844] close(3)                    = 0
[pid  5844] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5844] write(3, "1024", 4)         = 4
[pid  5844] close(3)                    = 0
[pid  5844] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5844] write(3, "8192", 4)         = 4
[pid  5844] close(3)                    = 0
[pid  5844] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5844] write(3, "1024", 4)         = 4
[pid  5844] close(3)                    = 0
[pid  5844] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  5844] write(3, "1024", 4)         = 4
[pid  5844] close(3)                    = 0
[pid  5844] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  5844] write(3, "1024 1048576 500 1024", 21) = 21
[pid  5844] close(3)                    = 0
[pid  5844] getpid()                    = 1
[pid  5844] 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  5844] 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  5844] unshare(CLONE_NEWNET)       = 0
[pid  5844] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  5844] write(3, "0 65535", 7)      = 7
[pid  5844] close(3)                    = 0
[pid  5844] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid  5844] write(3, "100000", 6)       = 6
[pid  5844] close(3)                    = 0
[pid  5844] mkdir("./syz-tmp", 0777)    = 0
[pid  5844] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid  5844] mkdir("./syz-tmp/newroot", 0777) = 0
[pid  5844] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid  5844] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5844] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid  5844] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid  5844] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid  5844] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5844] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5844] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid  5844] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5844] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5844] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5844] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5844] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid  5844] mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, MS_RDONLY|MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5844] mkdir("./syz-tmp/pivot", 0777) = 0
[pid  5844] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid  5844] chdir("/")                  = 0
[pid  5844] umount2("./pivot", MNT_DETACH) = 0
[pid  5844] chroot("./newroot")         = 0
[pid  5844] chdir("/")                  = 0
[pid  5844] mkdir("/dev/gadgetfs", 0777) = 0
[pid  5844] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = 0
[pid  5844] mkdir("/dev/binderfs", 0777) = 0
[pid  5844] mount("binder", "/dev/binderfs", "binder", 0, NULL) = -1 ENODEV (No such device)
[pid  5844] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5844] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  5844] write(1, "executing program\n", 18executing program
) = 18
[pid  5844] memfd_create("syzkaller", 0) = 3
[pid  5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4488c00000
[pid  5844] 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  5844] munmap(0x7f4488c00000, 138412032) = 0
[pid  5844] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5844] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5844] close(3)                    = 0
[pid  5844] close(4)                    = 0
[pid  5844] mkdir("./file0", 0777)      = 0
[   90.244498][ T5844] loop0: detected capacity change from 0 to 32768
[   90.336155][ T5844] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,erasure_code,degraded,no_splitbrain_check,fsck,norecovery,nojournal_transaction_names,reconstruct_alloc,nocow
[   90.360324][ T5844] bcachefs (loop0): recovering from clean shutdown, journal seq 10
[   90.369152][ T5844] bcachefs (loop0): Version upgrade required:
[   90.369152][ T5844] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete
[   90.369152][ T5844] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.25: extent_flags
[pid  5844] mount("/dev/loop0", "./file0", "bcachefs", MS_POSIXACL, "fsck,inline_data,nocow,degraded,str_hash=siphash,norecovery,discard,reconstruct_alloc,erasure_code,a"...) = 0
[pid  5844] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5844] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[   90.369152][ T5844]   running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance
[   90.439761][ T5844] bcachefs (loop0): dropping and reconstructing all alloc info
[   90.456375][ T5844] bcachefs (loop0): accounting_read... done
[   90.463534][ T5844] bcachefs (loop0): alloc_read... done
[   90.469259][ T5844] bcachefs (loop0): snapshots_read... done
[   90.476182][ T5844] bcachefs (loop0): done starting filesystem
[pid  5844] ioctl(4, LOOP_CLR_FD)       = 0
[pid  5844] close(4)                    = 0
[pid  5844] openat(AT_FDCWD, "./file0/file0", O_RDONLY|O_NOCTTY|O_SYNC) = 4
[pid  5844] ioctl(4, _IOC(_IOC_WRITE, 0xbc, 0x5, 0x10), 0x2000000000c0) = -1 EINVAL (Invalid argument)
[pid  5844] exit_group(1)               = ?
[   90.574993][ T5844] bcachefs (loop0): Cannot remove without losing data
[   90.591962][ T5844] bcachefs (loop0): shutting down
[   90.664458][ T5844] ------------[ cut here ]------------
[   90.671826][ T5844] WARNING: CPU: 0 PID: 5844 at fs/bcachefs/super.c:1229 bch2_dev_free+0x228/0x290
[   90.681393][ T5844] Modules linked in:
[   90.685605][ T5844] CPU: 0 UID: 0 PID: 5844 Comm: syz-executor215 Not tainted 6.14.0-next-20250404-syzkaller #0 PREEMPT(full) 
[   90.697598][ T5844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   90.708159][ T5844] RIP: 0010:bch2_dev_free+0x228/0x290
[   90.713906][ T5844] Code: ff e8 4c cf 74 00 4c 89 ef e8 44 cf 74 00 48 89 df 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d e9 ee 53 96 07 e8 59 e9 32 fd 90 <0f> 0b 90 e9 09 fe ff ff e8 4b e9 32 fd 90 0f 0b 90 e9 15 fe ff ff
[   90.733918][ T5844] RSP: 0018:ffffc9000417fb28 EFLAGS: 00010293
[   90.740310][ T5844] RAX: ffffffff849073d7 RBX: ffff8880748c8000 RCX: ffff88803551da00
[   90.748320][ T5844] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   90.756703][ T5844] RBP: ffff8880748c80c0 R08: ffffffff850552f7 R09: 0000000000000000
[   90.765002][ T5844] R10: ffff8880748c8208 R11: ffffed100e91904a R12: ffff8880748003f0
[   90.773335][ T5844] R13: ffff8880748c80b0 R14: ffff888074800000 R15: ffff8880748007b2
[   90.781587][ T5844] FS:  0000000000000000(0000) GS:ffff888124f8f000(0000) knlGS:0000000000000000
[   90.791294][ T5844] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.797975][ T5844] CR2: 00007f449117d3f8 CR3: 000000000eb38000 CR4: 00000000003526f0
[   90.806364][ T5844] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   90.814650][ T5844] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   90.822972][ T5844] Call Trace:
[   90.826298][ T5844]  <TASK>
[   90.829586][ T5844]  bch2_fs_free+0x2b0/0x400
[   90.834165][ T5844]  deactivate_locked_super+0xc4/0x130
[   90.839942][ T5844]  cleanup_mnt+0x422/0x4c0
[   90.844429][ T5844]  ? lockdep_hardirqs_on+0x9d/0x150
[   90.850004][ T5844]  task_work_run+0x251/0x310
[   90.854678][ T5844]  ? __pfx_task_work_run+0x10/0x10
[   90.860145][ T5844]  ? do_exit+0xa08/0x27e0
[   90.864541][ T5844]  ? do_exit+0xa08/0x27e0
[   90.869268][ T5844]  do_exit+0xa0d/0x27e0
[   90.873476][ T5844]  ? __pfx_do_exit+0x10/0x10
[   90.878135][ T5844]  ? _raw_spin_unlock_irq+0x23/0x50
[   90.883737][ T5844]  ? lockdep_hardirqs_on+0x9d/0x150
[   90.889271][ T5844]  do_group_exit+0x207/0x2c0
[   90.893886][ T5844]  __x64_sys_exit_group+0x3f/0x40
[   90.899221][ T5844]  x64_sys_call+0x26c3/0x26d0
[   90.903946][ T5844]  do_syscall_64+0xf3/0x230
[   90.908872][ T5844]  ? clear_bhb_loop+0x45/0xa0
[   90.913847][ T5844]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   90.920054][ T5844] RIP: 0033:0x7f4491132e49
[   90.924594][ T5844] Code: Unable to access opcode bytes at 0x7f4491132e1f.
[   90.932033][ T5844] RSP: 002b:00007ffdc007d648 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   90.940620][ T5844] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f4491132e49
[   90.948727][ T5844] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   90.956742][ T5844] RBP: 00007f44911b4390 R08: ffffffffffffffb8 R09: 0000000000000006
[   90.964795][ T5844] R10: 00000000000058ae R11: 0000000000000246 R12: 00007f44911b4390
[   90.972872][ T5844] R13: 0000000000000000 R14: 00007f44911b5100 R15: 00007f4491101110
[   90.980927][ T5844]  </TASK>
[   90.983986][ T5844] Kernel panic - not syncing: kernel: panic_on_warn set ...
[   90.991303][ T5844] CPU: 0 UID: 0 PID: 5844 Comm: syz-executor215 Not tainted 6.14.0-next-20250404-syzkaller #0 PREEMPT(full) 
[   91.002849][ T5844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   91.012926][ T5844] Call Trace:
[   91.016233][ T5844]  <TASK>
[   91.019175][ T5844]  dump_stack_lvl+0x241/0x360
[   91.023902][ T5844]  ? __pfx_dump_stack_lvl+0x10/0x10
[   91.029123][ T5844]  ? __pfx__printk+0x10/0x10
[   91.033739][ T5844]  ? vscnprintf+0x5d/0x90
[   91.038075][ T5844]  panic+0x349/0x880
[   91.041991][ T5844]  ? __warn+0x174/0x4d0
[   91.046168][ T5844]  ? __pfx_panic+0x10/0x10
[   91.050614][ T5844]  __warn+0x344/0x4d0
[   91.054636][ T5844]  ? bch2_dev_free+0x228/0x290
[   91.059504][ T5844]  report_bug+0x2b3/0x500
[   91.063877][ T5844]  ? bch2_dev_free+0x228/0x290
[   91.068661][ T5844]  ? bch2_dev_free+0x228/0x290
[   91.073441][ T5844]  ? bch2_dev_free+0x22a/0x290
[   91.078217][ T5844]  handle_bug+0x89/0x170
[   91.082479][ T5844]  exc_invalid_op+0x1a/0x50
[   91.086999][ T5844]  asm_exc_invalid_op+0x1a/0x20
[   91.091873][ T5844] RIP: 0010:bch2_dev_free+0x228/0x290
[   91.097268][ T5844] Code: ff e8 4c cf 74 00 4c 89 ef e8 44 cf 74 00 48 89 df 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d e9 ee 53 96 07 e8 59 e9 32 fd 90 <0f> 0b 90 e9 09 fe ff ff e8 4b e9 32 fd 90 0f 0b 90 e9 15 fe ff ff
[   91.116886][ T5844] RSP: 0018:ffffc9000417fb28 EFLAGS: 00010293
[   91.122982][ T5844] RAX: ffffffff849073d7 RBX: ffff8880748c8000 RCX: ffff88803551da00
[   91.130970][ T5844] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   91.138983][ T5844] RBP: ffff8880748c80c0 R08: ffffffff850552f7 R09: 0000000000000000
[   91.147003][ T5844] R10: ffff8880748c8208 R11: ffffed100e91904a R12: ffff8880748003f0
[   91.154989][ T5844] R13: ffff8880748c80b0 R14: ffff888074800000 R15: ffff8880748007b2
[   91.163071][ T5844]  ? percpu_ref_is_zero+0x47/0x100
[   91.168195][ T5844]  ? bch2_dev_free+0x227/0x290
[   91.172982][ T5844]  ? bch2_dev_free+0x227/0x290
[   91.177768][ T5844]  bch2_fs_free+0x2b0/0x400
[   91.182287][ T5844]  deactivate_locked_super+0xc4/0x130
[   91.187673][ T5844]  cleanup_mnt+0x422/0x4c0
[   91.192104][ T5844]  ? lockdep_hardirqs_on+0x9d/0x150
[   91.197325][ T5844]  task_work_run+0x251/0x310
[   91.201928][ T5844]  ? __pfx_task_work_run+0x10/0x10
[   91.207074][ T5844]  ? do_exit+0xa08/0x27e0
[   91.211455][ T5844]  ? do_exit+0xa08/0x27e0
[   91.215817][ T5844]  do_exit+0xa0d/0x27e0
[   91.220007][ T5844]  ? __pfx_do_exit+0x10/0x10
[   91.224625][ T5844]  ? _raw_spin_unlock_irq+0x23/0x50
[   91.229834][ T5844]  ? lockdep_hardirqs_on+0x9d/0x150
[   91.235045][ T5844]  do_group_exit+0x207/0x2c0
[   91.239657][ T5844]  __x64_sys_exit_group+0x3f/0x40
[   91.244696][ T5844]  x64_sys_call+0x26c3/0x26d0
[   91.249380][ T5844]  do_syscall_64+0xf3/0x230
[   91.253895][ T5844]  ? clear_bhb_loop+0x45/0xa0
[   91.258584][ T5844]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   91.264485][ T5844] RIP: 0033:0x7f4491132e49
[   91.268911][ T5844] Code: Unable to access opcode bytes at 0x7f4491132e1f.
[   91.275955][ T5844] RSP: 002b:00007ffdc007d648 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   91.284392][ T5844] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f4491132e49
[   91.292374][ T5844] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   91.300366][ T5844] RBP: 00007f44911b4390 R08: ffffffffffffffb8 R09: 0000000000000006
[   91.308361][ T5844] R10: 00000000000058ae R11: 0000000000000246 R12: 00007f44911b4390
[   91.316347][ T5844] R13: 0000000000000000 R14: 00007f44911b5100 R15: 00007f4491101110
[   91.324361][ T5844]  </TASK>
[   91.327654][ T5844] Kernel Offset: disabled
[   91.332024][ T5844] Rebooting in 86400 seconds..