erofs: unmounted for /dev/loop5 ====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.3/5523 is trying to acquire lock: 00000000dec0b943 (&sig->cred_guard_mutex){+.+.}, at: do_io_accounting fs/proc/base.c:2750 [inline] 00000000dec0b943 (&sig->cred_guard_mutex){+.+.}, at: proc_tid_io_accounting+0x184/0x2b0 fs/proc/base.c:2793 but task is already holding lock: 00000000c95a987f (&p->lock){+.+.}, at: seq_read+0x6b/0x11c0 fs/seq_file.c:164 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&p->lock){+.+.}: seq_read+0x6b/0x11c0 fs/seq_file.c:164 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231 do_loop_readv_writev fs/read_write.c:701 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_read+0x471/0x630 fs/read_write.c:925 vfs_readv+0xe5/0x150 fs/read_write.c:987 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x457/0xa00 fs/splice.c:417 do_splice_to+0x10e/0x160 fs/splice.c:881 splice_direct_to_actor+0x2b9/0x8d0 fs/splice.c:959 do_splice_direct+0x1a7/0x270 fs/splice.c:1068 do_sendfile+0x550/0xc30 fs/read_write.c:1447 __do_sys_sendfile64 fs/read_write.c:1508 [inline] __se_sys_sendfile64+0x147/0x160 fs/read_write.c:1494 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #2 (sb_writers#3){.+.+}: sb_start_write include/linux/fs.h:1579 [inline] mnt_want_write+0x3a/0xb0 fs/namespace.c:360 ovl_create_object+0x96/0x290 fs/overlayfs/dir.c:602 lookup_open+0x893/0x1a20 fs/namei.c:3235 do_last fs/namei.c:3327 [inline] path_openat+0x1094/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (&ovl_i_mutex_dir_key[depth]){++++}: inode_lock_shared include/linux/fs.h:758 [inline] do_last fs/namei.c:3326 [inline] path_openat+0x17ec/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_open_execat+0x11d/0x5b0 fs/exec.c:853 __do_execve_file+0x1a8b/0x2360 fs/exec.c:1770 do_execveat_common fs/exec.c:1879 [inline] do_execve+0x35/0x50 fs/exec.c:1896 __do_sys_execve fs/exec.c:1977 [inline] __se_sys_execve fs/exec.c:1972 [inline] __x64_sys_execve+0x7c/0xa0 fs/exec.c:1972 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&sig->cred_guard_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:937 [inline] __mutex_lock+0xd7/0x1190 kernel/locking/mutex.c:1078 do_io_accounting fs/proc/base.c:2750 [inline] proc_tid_io_accounting+0x184/0x2b0 fs/proc/base.c:2793 proc_single_show+0xeb/0x170 fs/proc/base.c:755 seq_read+0x4e0/0x11c0 fs/seq_file.c:232 __vfs_read+0xf7/0x750 fs/read_write.c:416 vfs_read+0x194/0x3c0 fs/read_write.c:452 ksys_read+0x12b/0x2a0 fs/read_write.c:579 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: &sig->cred_guard_mutex --> sb_writers#3 --> &p->lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&p->lock); lock(sb_writers#3); lock(&p->lock); lock(&sig->cred_guard_mutex); *** DEADLOCK *** 2 locks held by syz-executor.3/5523: #0: 0000000040baad0a (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 #1: 00000000c95a987f (&p->lock){+.+.}, at: seq_read+0x6b/0x11c0 fs/seq_file.c:164 stack backtrace: CPU: 0 PID: 5523 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1222 check_prev_add kernel/locking/lockdep.c:1866 [inline] check_prevs_add kernel/locking/lockdep.c:1979 [inline] validate_chain kernel/locking/lockdep.c:2420 [inline] __lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 __mutex_lock_common kernel/locking/mutex.c:937 [inline] __mutex_lock+0xd7/0x1190 kernel/locking/mutex.c:1078 do_io_accounting fs/proc/base.c:2750 [inline] proc_tid_io_accounting+0x184/0x2b0 fs/proc/base.c:2793 proc_single_show+0xeb/0x170 fs/proc/base.c:755 seq_read+0x4e0/0x11c0 fs/seq_file.c:232 __vfs_read+0xf7/0x750 fs/read_write.c:416 vfs_read+0x194/0x3c0 fs/read_write.c:452 ksys_read+0x12b/0x2a0 fs/read_write.c:579 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f90cfac70d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 RSP: 002b:00007f90ce039168 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f90cfbe6f80 RCX: 00007f90cfac70d9 RDX: 00000000000000f2 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 00007f90cfb22ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff05bd4a5f R14: 00007f90ce039300 R15: 0000000000022000 BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop2 erofs: read_super, device -> /dev/loop5 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, BTRFS error (device loop2): unsupported checksum algorithm 2 BTRFS error (device loop2): superblock checksum mismatch BTRFS error (device loop2): open_ctree failed erofs: FAULT_INJECTION was not selected erofs: root inode @ nid 36 erofs: mounted on /dev/loop5 with opts: user_xattr. attempt to access beyond end of device loop5: rw=0, want=4294967296, limit=16 erofs: unmounted for /dev/loop5 erofs: read_super, device -> /dev/loop5 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, erofs: FAULT_INJECTION was not selected erofs: root inode @ nid 36 erofs: mounted on /dev/loop5 with opts: user_xattr. attempt to access beyond end of device loop5: rw=0, want=4294967296, limit=16 erofs: unmounted for /dev/loop5 erofs: read_super, device -> /dev/loop5 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, erofs: FAULT_INJECTION was not selected erofs: root inode @ nid 36 erofs: mounted on /dev/loop5 with opts: user_xattr. erofs: unmounted for /dev/loop5 EXT4-fs (sda1): re-mounted. Opts: (null) erofs: read_super, device -> /dev/loop5 EXT4-fs (sda1): re-mounted. Opts: (null) erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, erofs: FAULT_INJECTION was not selected erofs: root inode @ nid 36 erofs: mounted on /dev/loop5 with opts: user_xattr. attempt to access beyond end of device loop5: rw=0, want=4294967296, limit=16 attempt to access beyond end of device loop5: rw=0, want=4294967296, limit=16 erofs: unmounted for /dev/loop5 EXT4-fs (sda1): re-mounted. Opts: (null) EXT4-fs (sda1): re-mounted. Opts: (null) audit: type=1800 audit(1669795834.661:278): pid=5752 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.4" name=".pending_reads" dev="sda1" ino=14676 res=0 erofs: read_super, device -> /dev/loop5 erofs: options -> user_xattr,userÏ:åv'fault_injection=0x0000000000 erofs: Unrecognized mount option "userÏ:åv'fault_injection=0x0000000000" or missing value audit: type=1800 audit(1669795835.361:279): pid=5824 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name=".pending_reads" dev="sda1" ino=14121 res=0 erofs: read_super, device -> /dev/loop5 erofs: options -> user_xattr,userÏ:åv'fault_injection=0x0000000000 erofs: Unrecognized mount option "userÏ:åv'fault_injection=0x0000000000" or missing value erofs: read_super, device -> /dev/loop5 erofs: options -> user_xattr,userÏ:åv'fault_injection=0x0000000000 erofs: Unrecognized mount option "userÏ:åv'fault_injection=0x0000000000" or missing value erofs: read_super, device -> /dev/loop5 erofs: options -> user_xattr,user_xattr,fault_injection=ÿ erofs: Unrecognized mount option "fault_injection=ÿ" or missing value erofs: read_super, device -> /dev/loop4 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, erofs: FAULT_INJECTION was not selected erofs: root inode @ nid 36 erofs: mounted on /dev/loop4 with opts: user_xattr. attempt to access beyond end of device loop4: rw=0, want=4294967296, limit=16 erofs: unmounted for /dev/loop4 erofs: read_super, device -> /dev/loop1 erofs: options -> user_xattr,user_xattr,fault_injection=ÿ erofs: read_super, device -> /dev/loop5 erofs: options -> user_xattr,user_xattr,fault_injection=ÿ erofs: read_super, device -> /dev/loop4 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, erofs: Unrecognized mount option "fault_injection=ÿ" or missing value erofs: FAULT_INJECTION was not selected erofs: Unrecognized mount option "fault_injection=ÿ" or missing value erofs: root inode @ nid 36 erofs: mounted on /dev/loop4 with opts: user_xattr. attempt to access beyond end of device loop4: rw=0, want=4294967296, limit=16 erofs: unmounted for /dev/loop4 BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop3 erofs: read_super, device -> /dev/loop4 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, erofs: FAULT_INJECTION was not selected erofs: root inode @ nid 36 erofs: mounted on /dev/loop4 with opts: user_xattr. BTRFS info (device loop3): using free space tree BTRFS error (device loop3): cannot mount because of unsupported optional features (800) attempt to access beyond end of device loop4: rw=0, want=4294967296, limit=16 erofs: read_super, device -> /dev/loop5 erofs: options -> user_xattr,user_xattr,fault_injection=ÿ erofs: unmounted for /dev/loop4 BTRFS error (device loop3): open_ctree failed erofs: Unrecognized mount option "fault_injection=ÿ" or missing value audit: type=1800 audit(1669795837.611:280): pid=5942 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="bus" dev="sda1" ino=14122 res=0 erofs: read_super, device -> /dev/loop4 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop2 erofs: FAULT_INJECTION was not selected erofs: root inode @ nid 36 erofs: mounted on /dev/loop4 with opts: user_xattr. BTRFS info (device loop2): enabling inode map caching attempt to access beyond end of device BTRFS info (device loop2): force clearing of disk cache loop4: rw=0, want=4294967296, limit=16 BTRFS info (device loop2): force zlib compression, level 3 audit: type=1804 audit(1669795837.641:281): pid=5942 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir3046769310/syzkaller.jBqAiN/680/bus" dev="sda1" ino=14122 res=1 BTRFS info (device loop2): using free space tree erofs: unmounted for /dev/loop4 BTRFS info (device loop2): has skinny extents erofs: read_super, device -> /dev/loop5 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, erofs: FAULT_INJECTION was not selected erofs: root inode @ nid 36 erofs: mounted on /dev/loop5 with opts: user_xattr. attempt to access beyond end of device BTRFS info (device loop2): clearing free space tree loop5: rw=0, want=4294967296, limit=16 BTRFS info (device loop2): clearing 1 ro feature flag BTRFS info (device loop2): clearing 2 ro feature flag BTRFS info (device loop2): creating free space tree BTRFS info (device loop2): setting 1 ro feature flag BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor.1 (5983) BTRFS info (device loop2): setting 2 ro feature flag BTRFS warning (device ): duplicate device /dev/loop1 devid 1 generation 8 scanned by systemd-udevd (6048) erofs: unmounted for /dev/loop5 erofs: read_super, device -> /dev/loop5 BTRFS info (device loop3): using free space tree erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, erofs: read_super, device -> /dev/loop4 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, erofs: read_super, device -> /dev/loop1 BTRFS error (device loop3): cannot mount because of unsupported optional features (800) erofs: FAULT_INJECTION was not selected erofs: root inode @ nid 36 erofs: FAULT_INJECTION was not selected erofs: mounted on /dev/loop4 with opts: user_xattr. erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, BTRFS error (device loop3): open_ctree failed erofs: unmounted for /dev/loop4 erofs: root inode @ nid 36 erofs: FAULT_INJECTION was not selected erofs: mounted on /dev/loop5 with opts: user_xattr. erofs: root inode @ nid 36 erofs: read_super, device -> /dev/loop4 BTRFS info (device loop2): enabling inode map caching BTRFS info (device loop2): force clearing of disk cache erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, BTRFS info (device loop2): force zlib compression, level 3 erofs: mounted on /dev/loop1 with opts: user_xattr. erofs: FAULT_INJECTION was not selected BTRFS info (device loop2): using free space tree BTRFS info (device loop2): has skinny extents erofs: root inode @ nid 36 erofs: mounted on /dev/loop4 with opts: user_xattr. attempt to access beyond end of device erofs: unmounted for /dev/loop4 loop5: rw=0, want=4294967296, limit=16 attempt to access beyond end of device loop1: rw=0, want=4294967296, limit=16 erofs: unmounted for /dev/loop5 audit: type=1800 audit(1669795838.851:282): pid=6015 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="bus" dev="sda1" ino=14134 res=0 erofs: unmounted for /dev/loop1 audit: type=1804 audit(1669795838.921:283): pid=6015 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir3046769310/syzkaller.jBqAiN/681/bus" dev="sda1" ino=14134 res=1 erofs: read_super, device -> /dev/loop4 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, erofs: FAULT_INJECTION was not selected erofs: root inode @ nid 36 erofs: mounted on /dev/loop4 with opts: user_xattr. BTRFS info (device loop2): clearing free space tree erofs: read_super, device -> /dev/loop1 BTRFS info (device loop2): clearing 1 ro feature flag erofs: unmounted for /dev/loop4 BTRFS info (device loop2): clearing 2 ro feature flag erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, BTRFS info (device loop2): creating free space tree erofs: read_super, device -> /dev/loop5 BTRFS info (device loop2): setting 1 ro feature flag erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, BTRFS info (device loop2): setting 2 ro feature flag erofs: FAULT_INJECTION was not selected erofs: FAULT_INJECTION was not selected erofs: root inode @ nid 36 erofs: mounted on /dev/loop1 with opts: user_xattr. erofs: root inode @ nid 36 erofs: mounted on /dev/loop5 with opts: user_xattr. attempt to access beyond end of device loop1: rw=0, want=4294967296, limit=16 erofs: unmounted for /dev/loop5 erofs: unmounted for /dev/loop1 BTRFS info (device loop4): enabling inode map caching BTRFS info (device loop4): force clearing of disk cache BTRFS info (device loop4): force zlib compression, level 3 erofs: read_super, device -> /dev/loop5 BTRFS info (device loop4): using free space tree BTRFS info (device loop4): has skinny extents BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor.2 (6155) erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (6074) erofs: read_super, device -> /dev/loop1 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, erofs: FAULT_INJECTION was not selected erofs: root inode @ nid 36 erofs: FAULT_INJECTION was not selected erofs: mounted on /dev/loop5 with opts: user_xattr. erofs: root inode @ nid 36 attempt to access beyond end of device erofs: mounted on /dev/loop1 with opts: user_xattr. BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor.2 (6181) loop5: rw=0, want=4294967296, limit=16 erofs: unmounted for /dev/loop5 BTRFS info (device loop4): clearing free space tree BTRFS info (device loop3): using free space tree BTRFS info (device loop4): clearing 1 ro feature flag attempt to access beyond end of device BTRFS info (device loop4): clearing 2 ro feature flag BTRFS info (device loop4): creating free space tree BTRFS info (device loop4): setting 1 ro feature flag loop1: rw=0, want=4294967296, limit=16 BTRFS info (device loop4): setting 2 ro feature flag BTRFS error (device loop3): cannot mount because of unsupported optional features (800) BTRFS error (device loop3): open_ctree failed erofs: read_super, device -> /dev/loop5 erofs: unmounted for /dev/loop1 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, erofs: FAULT_INJECTION was not selected erofs: root inode @ nid 36 BTRFS info (device loop2): enabling inode map caching BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 13 scanned by systemd-udevd (6217) BTRFS info (device loop2): force clearing of disk cache erofs: mounted on /dev/loop5 with opts: user_xattr. BTRFS info (device loop2): force zlib compression, level 3 BTRFS info (device loop2): using free space tree BTRFS info (device loop2): has skinny extents audit: type=1800 audit(1669795840.331:284): pid=6132 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="bus" dev="sda1" ino=14121 res=0 attempt to access beyond end of device loop5: rw=0, want=4294967296, limit=16 attempt to access beyond end of device audit: type=1804 audit(1669795840.411:285): pid=6132 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir3046769310/syzkaller.jBqAiN/682/bus" dev="sda1" ino=14121 res=1 loop5: rw=0, want=4294967296, limit=16 erofs: unmounted for /dev/loop5 BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor.4 (6247) erofs: read_super, device -> /dev/loop1 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, erofs: FAULT_INJECTION was not selected BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (6223) BTRFS info (device loop2): clearing free space tree erofs: root inode @ nid 36 BTRFS info (device loop2): clearing 1 ro feature flag BTRFS info (device loop2): clearing 2 ro feature flag BTRFS info (device loop2): creating free space tree erofs: mounted on /dev/loop1 with opts: user_xattr. BTRFS info (device loop2): setting 1 ro feature flag BTRFS info (device loop2): setting 2 ro feature flag erofs: read_super, device -> /dev/loop5 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, erofs: unmounted for /dev/loop1 erofs: FAULT_INJECTION was not selected erofs: root inode @ nid 36 erofs: mounted on /dev/loop5 with opts: user_xattr. BTRFS info (device loop4): enabling inode map caching BTRFS info (device loop4): force clearing of disk cache attempt to access beyond end of device BTRFS info (device loop4): force zlib compression, level 3 BTRFS info (device loop4): using free space tree loop5: rw=0, want=4294967296, limit=16 BTRFS info (device loop4): has skinny extents attempt to access beyond end of device loop5: rw=0, want=4294967296, limit=16 BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor.2 (6288) erofs: unmounted for /dev/loop5 BTRFS info (device loop3): using free space tree BTRFS error (device loop3): cannot mount because of unsupported optional features (800) erofs: read_super, device -> /dev/loop5 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor.2 (6320) BTRFS warning (device ): duplicate device /dev/loop2 devid 1 generation 8 scanned by systemd-udevd (6304) erofs: FAULT_INJECTION was not selected BTRFS error (device loop3): open_ctree failed erofs: root inode @ nid 36 erofs: mounted on /dev/loop5 with opts: user_xattr. BTRFS info (device loop4): clearing free space tree BTRFS info (device loop4): clearing 1 ro feature flag BTRFS info (device loop4): clearing 2 ro feature flag BTRFS info (device loop4): creating free space tree BTRFS info (device loop4): setting 1 ro feature flag BTRFS info (device loop4): setting 2 ro feature flag attempt to access beyond end of device loop5: rw=0, want=4294967296, limit=16 erofs: unmounted for /dev/loop5 audit: type=1800 audit(1669795841.821:286): pid=6252 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="bus" dev="sda1" ino=14111 res=0 erofs: read_super, device -> /dev/loop5 erofs: options -> user_xattr,user_xattr,fault_injection=0x000000000000000a,noacl, erofs: FAULT_INJECTION was not selected erofs: root inode @ nid 36 audit: type=1804 audit(1669795842.011:287): pid=6252 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir3046769310/syzkaller.jBqAiN/683/bus" dev="sda1" ino=14111 res=1