BTRFS error (device loop3): open_ctree failed validate_nla: 26 callbacks suppressed netlink: 'syz-executor.1': attribute type 2 has an invalid length. netlink: 'syz-executor.1': attribute type 2 has an invalid length. ================================ WARNING: inconsistent lock state 4.19.198-syzkaller #0 Not tainted -------------------------------- inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage. syz-executor.4/30829 [HC0[0]:SC0[0]:HE1:SE1] takes: 000000001a5b2b26 (slock-AF_BLUETOOTH-BTPROTO_SCO){+.?.}, at: spin_lock include/linux/spinlock.h:329 [inline] 000000001a5b2b26 (slock-AF_BLUETOOTH-BTPROTO_SCO){+.?.}, at: sco_conn_del+0xe2/0x240 net/bluetooth/sco.c:175 {IN-SOFTIRQ-W} state was registered at: __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] sco_sock_timeout+0x31/0x210 net/bluetooth/sco.c:82 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 iov_iter_copy_from_user_atomic+0x6c8/0xaa0 lib/iov_iter.c:929 generic_perform_write+0x265/0x4d0 mm/filemap.c:3178 __generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295 blkdev_write_iter+0x240/0x490 fs/block_dev.c:1944 call_write_iter include/linux/fs.h:1821 [inline] do_iter_readv_writev+0x668/0x790 fs/read_write.c:681 do_iter_write+0x182/0x5d0 fs/read_write.c:960 vfs_iter_write+0x70/0xa0 fs/read_write.c:973 iter_file_splice_write+0x60d/0xbb0 fs/splice.c:750 do_splice_from fs/splice.c:852 [inline] direct_splice_actor+0x115/0x160 fs/splice.c:1025 splice_direct_to_actor+0x33f/0x8d0 fs/splice.c:980 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 irq event stamp: 3724721 hardirqs last enabled at (3724721): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (3724721): [] _raw_spin_unlock_irq+0x24/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (3724720): [] __schedule+0x1e1/0x2040 kernel/sched/core.c:3444 softirqs last enabled at (3724070): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (3724070): [] peernet2id+0x8f/0xc0 net/core/net_namespace.c:266 softirqs last disabled at (3724068): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (3724068): [] peernet2id+0x6f/0xc0 net/core/net_namespace.c:264 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(slock-AF_BLUETOOTH-BTPROTO_SCO); lock(slock-AF_BLUETOOTH-BTPROTO_SCO); *** DEADLOCK *** 4 locks held by syz-executor.4/30829: #0: 0000000006a0b16f (rfkill_global_mutex){+.+.}, at: rfkill_fop_write+0xfe/0x4a0 net/rfkill/core.c:1241 #1: 000000004effb4ed (&hdev->req_lock){+.+.}, at: hci_dev_do_close+0xab/0xf20 net/bluetooth/hci_core.c:1615 #2: 00000000f9355166 (&hdev->lock){+.+.}, at: hci_dev_do_close+0x20f/0xf20 net/bluetooth/hci_core.c:1652 #3: 00000000943ceecb (hci_cb_list_lock){+.+.}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1259 [inline] #3: 00000000943ceecb (hci_cb_list_lock){+.+.}, at: hci_conn_hash_flush+0xda/0x260 net/bluetooth/hci_conn.c:1512 stack backtrace: CPU: 1 PID: 30829 Comm: syz-executor.4 Not tainted 4.19.198-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_usage_bug.cold+0x42e/0x570 kernel/locking/lockdep.c:2545 valid_state kernel/locking/lockdep.c:2558 [inline] mark_lock_irq kernel/locking/lockdep.c:2752 [inline] mark_lock+0xc70/0x1160 kernel/locking/lockdep.c:3132 mark_irqflags kernel/locking/lockdep.c:3028 [inline] __lock_acquire+0x6a8/0x3ff0 kernel/locking/lockdep.c:3373 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] sco_conn_del+0xe2/0x240 net/bluetooth/sco.c:175 sco_disconn_cfm+0x74/0xb0 net/bluetooth/sco.c:1133 hci_disconn_cfm include/net/bluetooth/hci_core.h:1262 [inline] hci_conn_hash_flush+0x127/0x260 net/bluetooth/hci_conn.c:1512 hci_dev_do_close+0x588/0xf20 net/bluetooth/hci_core.c:1665 hci_rfkill_set_block+0xe7/0x160 net/bluetooth/hci_core.c:2107 rfkill_set_block+0x1f9/0x540 net/rfkill/core.c:353 rfkill_fop_write+0x250/0x4a0 net/rfkill/core.c:1249 __vfs_write+0xf7/0x770 fs/read_write.c:485 vfs_write+0x1f3/0x540 fs/read_write.c:549 ksys_write+0x12b/0x2a0 fs/read_write.c:599 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f90d44b2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665e9 RDX: 0000000000000008 RSI: 0000000020000040 RDI: 0000000000000007 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffe95ee162f R14: 00007f90d44b2300 R15: 0000000000022000 BTRFS info (device loop3): disabling disk space caching netlink: 'syz-executor.2': attribute type 2 has an invalid length. BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (30980) BTRFS info (device loop3): trying to use backup root at mount time netlink: 'syz-executor.4': attribute type 2 has an invalid length. BTRFS info (device loop3): has skinny extents BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (30989) netlink: 'syz-executor.4': attribute type 2 has an invalid length. netlink: 'syz-executor.2': attribute type 2 has an invalid length. netlink: 'syz-executor.5': attribute type 2 has an invalid length. netlink: 'syz-executor.5': attribute type 2 has an invalid length. BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31015) netlink: 'syz-executor.4': attribute type 2 has an invalid length. BTRFS warning (device loop3): loop3 checksum verify failed on 5242880 wanted 42BCE6B8 found 4EA85D45 level 0 BTRFS warning (device loop3): failed to read tree root BTRFS warning (device loop3): loop3 checksum verify failed on 5242880 wanted 42BCE6B8 found 4EA85D45 level 0 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): bad tree block start, want 5304320 have 0 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31043) BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): parent transid verify failed on 5246976 wanted 5 found 7 BTRFS warning (device loop3): failed to read tree root BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (30988) BTRFS error (device loop3): bad tree block start, want 5263360 have 0 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): open_ctree failed netlink: 'syz-executor.5': attribute type 2 has an invalid length. BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by syz-executor.3 (31068) BTRFS info (device loop0): disabling disk space caching BTRFS info (device loop0): trying to use backup root at mount time BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by systemd-udevd (30979) BTRFS info (device loop0): has skinny extents BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by syz-executor.3 (31101) BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found 921D2570 level 0 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 BTRFS info (device loop3): disabling disk space caching BTRFS info (device loop3): trying to use backup root at mount time BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31148) BTRFS info (device loop3): has skinny extents BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (30979) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31174) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (30988) BTRFS warning (device loop3): loop3 checksum verify failed on 5242880 wanted 42BCE6B8 found ECF9E436 level 0 BTRFS warning (device loop3): failed to read tree root BTRFS warning (device loop3): loop3 checksum verify failed on 5242880 wanted 42BCE6B8 found ECF9E436 level 0 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): bad tree block start, want 5304320 have 0 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): parent transid verify failed on 5246976 wanted 5 found 7 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31199) BTRFS warning (device loop3): failed to read tree root BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (30988) BTRFS error (device loop3): bad tree block start, want 5263360 have 0 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): open_ctree failed BTRFS info (device loop0): disabling disk space caching BTRFS info (device loop0): trying to use backup root at mount time BTRFS info (device loop0): has skinny extents BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by syz-executor.3 (31238) BTRFS error (device loop0): bad tree block start, want 1052672 have 0 BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by systemd-udevd (31244) BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed BTRFS info (device loop3): disabling disk space caching BTRFS info (device loop3): trying to use backup root at mount time BTRFS info (device loop3): has skinny extents BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31286) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (31284) BTRFS error (device loop3): bad tree block start, want 5242880 have 0 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): bad tree block start, want 5242880 have 0 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31319) BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): bad tree block start, want 5304320 have 0 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (31293) BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): parent transid verify failed on 5246976 wanted 5 found 7 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): bad tree block start, want 5263360 have 0 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): open_ctree failed BTRFS info (device loop0): disabling disk space caching BTRFS info (device loop0): trying to use backup root at mount time BTRFS info (device loop0): has skinny extents BTRFS error (device loop0): bad tree block start, want 1052672 have 0 validate_nla: 23 callbacks suppressed netlink: 'syz-executor.2': attribute type 2 has an invalid length. BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by syz-executor.3 (31356) BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed BTRFS info (device loop3): disabling disk space caching BTRFS info (device loop3): trying to use backup root at mount time BTRFS info (device loop3): has skinny extents netlink: 'syz-executor.2': attribute type 2 has an invalid length. BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31380) netlink: 'syz-executor.2': attribute type 2 has an invalid length. BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (31386) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31416) netlink: 'syz-executor.2': attribute type 2 has an invalid length. netlink: 'syz-executor.2': attribute type 2 has an invalid length. BTRFS info (device loop3): disabling disk space caching BTRFS info (device loop3): trying to use backup root at mount time BTRFS info (device loop3): has skinny extents netlink: 'syz-executor.1': attribute type 2 has an invalid length. BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31446) netlink: 'syz-executor.1': attribute type 2 has an invalid length. BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (31427) netlink: 'syz-executor.4': attribute type 2 has an invalid length. BTRFS warning (device loop3): failed to read tree root BTRFS warning (device loop3): failed to read tree root netlink: 'syz-executor.2': attribute type 2 has an invalid length. BTRFS warning (device loop3): failed to read tree root BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31479) netlink: 'syz-executor.4': attribute type 2 has an invalid length. BTRFS error (device loop3): parent transid verify failed on 5246976 wanted 5 found 7 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (31457) BTRFS warning (device loop3): failed to read tree root BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): open_ctree failed BTRFS info (device loop0): disabling disk space caching BTRFS info (device loop0): trying to use backup root at mount time BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by syz-executor.3 (31514) audit: type=1800 audit(1627353920.407:156): pid=31519 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="file0" dev="sda1" ino=14930 res=0 BTRFS info (device loop0): has skinny extents BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by systemd-udevd (31386) audit: type=1804 audit(1627353920.457:157): pid=31523 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir599298331/syzkaller.WLbMMH/3053/file0" dev="sda1" ino=14930 res=1 BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by syz-executor.3 (31541) BTRFS error (device loop0): failed to read chunk root BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by systemd-udevd (31427) BTRFS error (device loop0): open_ctree failed BTRFS info (device loop0): disabling disk space caching BTRFS info (device loop0): trying to use backup root at mount time BTRFS info (device loop0): has skinny extents BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found B62D5F0D level 0 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed Unknown ioctl 35319 BTRFS info (device loop3): disabling disk space caching BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31616) BTRFS info (device loop3): trying to use backup root at mount time Unknown ioctl 35319 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (31629) BTRFS info (device loop3): has skinny extents BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31652) BTRFS warning (device loop3): failed to read tree root BTRFS warning (device loop3): failed to read tree root BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): parent transid verify failed on 5246976 wanted 5 found 7 BTRFS warning (device loop3): failed to read tree root BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): open_ctree failed BTRFS info (device loop0): disabling disk space caching BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 7 scanned by syz-executor.4 (31708) BTRFS info (device loop0): trying to use backup root at mount time BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by syz-executor.3 (31719) BTRFS info (device loop0): has skinny extents BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by systemd-udevd (31725) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 7 scanned by systemd-udevd (31720) audit: type=1800 audit(1627353921.907:158): pid=31744 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.4" name="file0" dev="sda1" ino=14100 res=0 audit: type=1804 audit(1627353921.957:159): pid=31744 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir798643646/syzkaller.ujp021/2515/file0" dev="sda1" ino=14100 res=1 BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found 95175627 level 0 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed BTRFS info (device loop3): disabling disk space caching BTRFS info (device loop3): trying to use backup root at mount time BTRFS info (device loop3): has skinny extents BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31792) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (31722) audit: type=1800 audit(1627353922.287:160): pid=31806 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.4" name="file0" dev="sda1" ino=14001 res=0 audit: type=1804 audit(1627353922.307:161): pid=31806 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir798643646/syzkaller.ujp021/2516/file0" dev="sda1" ino=14001 res=1 btree_readpage_end_io_hook: 9 callbacks suppressed BTRFS error (device loop3): bad tree block start, want 5242880 have 0 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): bad tree block start, want 5242880 have 0 BTRFS warning (device loop3): failed to read tree root BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31836) BTRFS error (device loop3): bad tree block start, want 5304320 have 0 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): parent transid verify failed on 5246976 wanted 5 found 7 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): bad tree block start, want 5263360 have 0 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (31725) BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): open_ctree failed BTRFS info (device loop0): disabling disk space caching audit: type=1800 audit(1627353922.708:162): pid=31860 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.4" name="file0" dev="sda1" ino=14308 res=0 BTRFS info (device loop0): trying to use backup root at mount time BTRFS info (device loop0): has skinny extents BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by syz-executor.3 (31866) audit: type=1804 audit(1627353922.758:163): pid=31869 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir798643646/syzkaller.ujp021/2517/file0" dev="sda1" ino=14308 res=1 BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by systemd-udevd (31855) BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by syz-executor.3 (31899) BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found 384B6BC level 0 BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by systemd-udevd (31864) BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed audit: type=1800 audit(1627353923.118:164): pid=31921 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.4" name="file0" dev="sda1" ino=14449 res=0 BTRFS info (device loop3): disabling disk space caching BTRFS info (device loop3): trying to use backup root at mount time audit: type=1804 audit(1627353923.138:165): pid=31921 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir798643646/syzkaller.ujp021/2518/file0" dev="sda1" ino=14449 res=1 BTRFS info (device loop3): has skinny extents BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31941) VFS: could not find a valid V7 on loop5. BTRFS warning (device loop3): loop3 checksum verify failed on 5242880 wanted 42BCE6B8 found A78ADE82 level 0 BTRFS warning (device loop3): failed to read tree root BTRFS warning (device loop3): loop3 checksum verify failed on 5242880 wanted 42BCE6B8 found A78ADE82 level 0 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): bad tree block start, want 5304320 have 0 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (31981) BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): parent transid verify failed on 5246976 wanted 5 found 7 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): bad tree block start, want 5263360 have 0 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): open_ctree failed caif:caif_disconnect_client(): nothing to disconnect BTRFS info (device loop3): disabling disk space caching BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (32017) BTRFS info (device loop3): trying to use backup root at mount time BTRFS info (device loop3): has skinny extents BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (31935) MTU too low for tipc bearer caif:caif_disconnect_client(): nothing to disconnect BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (32060) BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (31928) BTRFS warning (device loop3): loop3 checksum verify failed on 5242880 wanted 42BCE6B8 found 2470ADF1 level 0 BTRFS warning (device loop3): failed to read tree root BTRFS warning (device loop3): loop3 checksum verify failed on 5242880 wanted 42BCE6B8 found 2470ADF1 level 0 BTRFS warning (device loop3): failed to read tree root BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (32083) BTRFS error (device loop3): bad tree block start, want 5304320 have 0 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): parent transid verify failed on 5246976 wanted 5 found 7 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): bad tree block start, want 5263360 have 0 BTRFS warning (device loop3): failed to read tree root BTRFS error (device loop3): open_ctree failed validate_nla: 56 callbacks suppressed netlink: 'syz-executor.2': attribute type 2 has an invalid length. BTRFS info (device loop0): disabling disk space caching BTRFS info (device loop0): trying to use backup root at mount time BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by syz-executor.3 (32109) BTRFS info (device loop0): has skinny extents BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by systemd-udevd (32094) netlink: 'syz-executor.2': attribute type 2 has an invalid length. netlink: 'syz-executor.2': attribute type 2 has an invalid length. BTRFS warning (device ): duplicate device /dev/loop3 devid 1 generation 7 scanned by syz-executor.3 (32146) BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found 6C5D6448 level 0 netlink: 'syz-executor.2': attribute type 2 has an invalid length. BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed netlink: 'syz-executor.1': attribute type 2 has an invalid length. netlink: 'syz-executor.2': attribute type 2 has an invalid length. netlink: 'syz-executor.1': attribute type 2 has an invalid length. netlink: 'syz-executor.2': attribute type 2 has an invalid length. BTRFS info (device loop3): disabling disk space caching BTRFS info (device loop3): trying to use backup root at mount time BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (32172) BTRFS info (device loop3): has skinny extents netlink: 'syz-executor.1': attribute type 2 has an invalid length. BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (32153) netlink: 'syz-executor.1': attribute type 2 has an invalid length. BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by syz-executor.0 (32203) BTRFS warning (device loop3): loop3 checksum verify failed on 5242880 wanted 42BCE6B8 found 3129789D level 0 BTRFS warning (device ): duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (32219) BTRFS warning (device loop3): failed to read tree root BTRFS warning (device loop3): loop3 checksum verify failed on 5242880 wanted 42BCE6B8 found 3129789D level 0 BTRFS warning (device loop3): failed to read tree root