x_tables: ip_tables: ah match: only valid for protocol 51 ====================================================== WARNING: possible circular locking dependency detected 4.14.231-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.0/13462 is trying to acquire lock: (&p->lock){+.+.}, at: [] seq_read+0xba/0x1120 fs/seq_file.c:165 but task is already holding lock: (sb_writers#3){.+.+}, at: [] file_start_write include/linux/fs.h:2712 [inline] (sb_writers#3){.+.+}, at: [] do_sendfile+0x84f/0xb30 fs/read_write.c:1440 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (sb_writers#3){.+.+}: percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x64/0x260 fs/super.c:1342 sb_start_write include/linux/fs.h:1549 [inline] mnt_want_write+0x3a/0xb0 fs/namespace.c:386 ovl_do_remove+0x67/0xb90 fs/overlayfs/dir.c:759 vfs_rmdir.part.0+0x144/0x390 fs/namei.c:3908 vfs_rmdir fs/namei.c:3893 [inline] do_rmdir+0x334/0x3c0 fs/namei.c:3968 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #3 (&ovl_i_mutex_dir_key[depth]#2){++++}: down_read+0x36/0x80 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:729 [inline] lookup_slow+0x129/0x400 fs/namei.c:1674 lookup_one_len_unlocked+0x3a0/0x410 fs/namei.c:2595 ovl_lookup_single+0x33/0x6d0 fs/overlayfs/namei.c:208 ovl_lookup_layer+0x2ef/0x3d0 fs/overlayfs/namei.c:265 ovl_lookup+0x5d9/0x1120 fs/overlayfs/namei.c:670 lookup_slow+0x20a/0x400 fs/namei.c:1696 walk_component+0x6a1/0xbc0 fs/namei.c:1825 link_path_walk+0x823/0x10a0 fs/namei.c:2154 path_lookupat+0xcb/0x780 fs/namei.c:2342 filename_lookup+0x18a/0x510 fs/namei.c:2377 user_path_at include/linux/namei.h:57 [inline] do_sys_truncate.part.0+0x78/0xf0 fs/open.c:141 do_sys_truncate fs/open.c:137 [inline] SYSC_truncate fs/open.c:155 [inline] SyS_truncate+0x23/0x40 fs/open.c:153 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #2 (&ovl_i_mutex_dir_key[depth]#3){++++}: down_read+0x36/0x80 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:729 [inline] do_last fs/namei.c:3333 [inline] path_openat+0x149b/0x2970 fs/namei.c:3569 do_filp_open+0x179/0x3c0 fs/namei.c:3603 do_open_execat+0xd3/0x450 fs/exec.c:849 do_execveat_common+0x711/0x1f30 fs/exec.c:1755 do_execve fs/exec.c:1860 [inline] SYSC_execve fs/exec.c:1941 [inline] SyS_execve+0x3b/0x50 fs/exec.c:1936 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #1 (&sig->cred_guard_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 lock_trace fs/proc/base.c:407 [inline] proc_pid_syscall+0xa7/0x2a0 fs/proc/base.c:639 proc_single_show+0xe7/0x150 fs/proc/base.c:761 seq_read+0x4cf/0x1120 fs/seq_file.c:237 do_loop_readv_writev fs/read_write.c:695 [inline] do_loop_readv_writev fs/read_write.c:682 [inline] do_iter_read+0x3eb/0x5b0 fs/read_write.c:919 vfs_readv+0xc8/0x120 fs/read_write.c:981 do_preadv fs/read_write.c:1065 [inline] SYSC_preadv fs/read_write.c:1115 [inline] SyS_preadv+0x15a/0x200 fs/read_write.c:1110 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #0 (&p->lock){+.+.}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 seq_read+0xba/0x1120 fs/seq_file.c:165 do_loop_readv_writev fs/read_write.c:695 [inline] do_loop_readv_writev fs/read_write.c:682 [inline] do_iter_read+0x3eb/0x5b0 fs/read_write.c:919 vfs_readv+0xc8/0x120 fs/read_write.c:981 kernel_readv fs/splice.c:361 [inline] default_file_splice_read+0x418/0x910 fs/splice.c:416 do_splice_to+0xfb/0x140 fs/splice.c:880 splice_direct_to_actor+0x207/0x730 fs/splice.c:952 do_splice_direct+0x164/0x210 fs/splice.c:1061 do_sendfile+0x47f/0xb30 fs/read_write.c:1441 SYSC_sendfile64 fs/read_write.c:1502 [inline] SyS_sendfile64+0xff/0x110 fs/read_write.c:1488 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb other info that might help us debug this: Chain exists of: &p->lock --> &ovl_i_mutex_dir_key[depth]#2 --> sb_writers#3 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(sb_writers#3); lock(&ovl_i_mutex_dir_key[depth]#2); lock(sb_writers#3); lock(&p->lock); *** DEADLOCK *** 1 lock held by syz-executor.0/13462: #0: (sb_writers#3){.+.+}, at: [] file_start_write include/linux/fs.h:2712 [inline] #0: (sb_writers#3){.+.+}, at: [] do_sendfile+0x84f/0xb30 fs/read_write.c:1440 stack backtrace: CPU: 1 PID: 13462 Comm: syz-executor.0 Not tainted 4.14.231-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 seq_read+0xba/0x1120 fs/seq_file.c:165 do_loop_readv_writev fs/read_write.c:695 [inline] do_loop_readv_writev fs/read_write.c:682 [inline] do_iter_read+0x3eb/0x5b0 fs/read_write.c:919 vfs_readv+0xc8/0x120 fs/read_write.c:981 kernel_readv fs/splice.c:361 [inline] default_file_splice_read+0x418/0x910 fs/splice.c:416 do_splice_to+0xfb/0x140 fs/splice.c:880 splice_direct_to_actor+0x207/0x730 fs/splice.c:952 do_splice_direct+0x164/0x210 fs/splice.c:1061 do_sendfile+0x47f/0xb30 fs/read_write.c:1441 SYSC_sendfile64 fs/read_write.c:1502 [inline] SyS_sendfile64+0xff/0x110 fs/read_write.c:1488 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x466459 RSP: 002b:00007f1235e7b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000006 RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000f6c1 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffd7c5914df R14: 00007f1235e7b300 R15: 0000000000022000 x_tables: ip_tables: ah match: only valid for protocol 51 netlink: 32 bytes leftover after parsing attributes in process `syz-executor.1'. PF_BRIDGE: br_mdb_parse() with invalid attr ldm_validate_privheads(): Disk read failed. loop4: p2 < > loop4: partition table partially beyond EOD, truncated BTRFS: device fsid f90cac8b-044b-4fa8-8bee-4b8d3da88dc2 devid 1 transid 7 /dev/loop0 BTRFS info (device loop0): setting 8 feature flag BTRFS info (device loop0): force lzo compression BTRFS info (device loop0): disk space caching is enabled x_tables: ip_tables: ah match: only valid for protocol 51 BTRFS info (device loop0): has skinny extents ldm_validate_privheads(): Disk read failed. loop4: p2 < > loop4: partition table partially beyond EOD, truncated netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. PF_BRIDGE: br_mdb_parse() with invalid attr x_tables: ip_tables: ah match: only valid for protocol 51 ldm_validate_privheads(): Disk read failed. @þ: renamed from team0 loop4: p2 < > loop4: partition table partially beyond EOD, truncated 8021q: adding VLAN 0 to HW filter on device @þ x_tables: ip_tables: ah match: only valid for protocol 51 ldm_validate_privheads(): Disk read failed. loop4: p2 < > loop4: partition table partially beyond EOD, truncated netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. attempt to access beyond end of device loop0: rw=4096, want=2064, limit=267 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed 8021q: adding VLAN 0 to HW filter on device @þ netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. ldm_validate_privheads(): Disk read failed. netlink: 32 bytes leftover after parsing attributes in process `syz-executor.1'. loop4: p2 < > loop4: partition table partially beyond EOD, truncated PF_BRIDGE: br_mdb_parse() with unknown ifindex x_tables: ip_tables: ah match: only valid for protocol 51 ldm_validate_privheads(): Disk read failed. loop4: p2 < > loop4: partition table partially beyond EOD, truncated ldm_validate_privheads(): Disk read failed. BTRFS info (device loop0): setting 8 feature flag loop4: p2 < > BTRFS info (device loop0): force lzo compression loop4: partition table partially beyond EOD, truncated BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents x_tables: ip_tables: ah match: only valid for protocol 51 x_tables: ip_tables: ah match: only valid for protocol 51 x_tables: ip_tables: ah match: only valid for protocol 51 x_tables: ip_tables: ah match: only valid for protocol 51 x_tables: ip_tables: ah match: only valid for protocol 51 ldm_validate_privheads(): Disk read failed. loop4: p2 < > loop4: partition table partially beyond EOD, truncated PF_BRIDGE: br_mdb_parse() with invalid attr ldm_validate_privheads(): Disk read failed. loop4: p2 < > attempt to access beyond end of device loop0: rw=4096, want=2064, limit=267 loop4: partition table partially beyond EOD, truncated BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed ldm_validate_privheads(): Disk read failed. loop4: p2 < > BTRFS info (device loop0): setting 8 feature flag x_tables: ip_tables: ah match: only valid for protocol 51 loop4: partition table partially beyond EOD, truncated BTRFS info (device loop0): force lzo compression BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents x_tables: ip_tables: ah match: only valid for protocol 51 PF_BRIDGE: br_mdb_parse() with invalid ifindex x_tables: ip_tables: ah match: only valid for protocol 51 audit: type=1804 audit(1618805872.123:116): pid=13716 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir032155193/syzkaller.2V4Mt7/99/bus" dev="sda1" ino=14310 res=1 PF_BRIDGE: br_mdb_parse() with unknown ifindex attempt to access beyond end of device loop0: rw=4096, want=2064, limit=267 BTRFS error (device loop0): failed to read chunk root audit: type=1804 audit(1618805872.893:117): pid=13752 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir032155193/syzkaller.2V4Mt7/99/bus" dev="sda1" ino=14310 res=1 audit: type=1804 audit(1618805872.933:118): pid=13751 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir032155193/syzkaller.2V4Mt7/99/bus" dev="sda1" ino=14310 res=1 BTRFS error (device loop0): open_ctree failed BTRFS info (device loop0): setting 8 feature flag BTRFS info (device loop0): force lzo compression x_tables: ip_tables: ah match: only valid for protocol 51 BTRFS info (device loop0): disk space caching is enabled bond0: team0 is up - this may be due to an out of date ifenslave BTRFS info (device loop0): has skinny extents bridge0: port 3(team0) entered blocking state bridge0: port 3(team0) entered disabled state device team0 entered promiscuous mode device team_slave_0 entered promiscuous mode device team_slave_1 entered promiscuous mode bridge0: port 3(team0) entered blocking state bridge0: port 3(team0) entered forwarding state ldm_validate_privheads(): Disk read failed. device team0 left promiscuous mode device team_slave_0 left promiscuous mode device team_slave_1 left promiscuous mode bridge0: port 3(team0) entered disabled state loop4: p2 < > bond0: team0 is up - this may be due to an out of date ifenslave loop4: partition table partially beyond EOD, truncated PF_BRIDGE: br_mdb_parse() with invalid ifindex bridge0: port 3(team0) entered blocking state bridge0: port 3(team0) entered disabled state device team0 entered promiscuous mode device team_slave_0 entered promiscuous mode device team_slave_1 entered promiscuous mode bridge0: port 3(team0) entered blocking state bridge0: port 3(team0) entered forwarding state attempt to access beyond end of device loop0: rw=4096, want=2064, limit=267 ldm_validate_privheads(): Disk read failed. loop4: p2 < > BTRFS error (device loop0): failed to read chunk root loop4: partition table partially beyond EOD, truncated PF_BRIDGE: br_mdb_parse() with invalid ifindex BTRFS error (device loop0): open_ctree failed PF_BRIDGE: br_mdb_parse() with invalid entry BTRFS info (device loop0): setting 8 feature flag BTRFS info (device loop0): force lzo compression x_tables: ip_tables: ah match: only valid for protocol 51 BTRFS info (device loop0): disk space caching is enabled x_tables: ip_tables: ah match: only valid for protocol 51 BTRFS info (device loop0): has skinny extents x_tables: ip_tables: ah match: only valid for protocol 51 x_tables: ip_tables: ah match: only valid for protocol 51 x_tables: ip_tables: ah match: only valid for protocol 51 blktrace: Concurrent blktraces are not allowed on loop0 blktrace: Concurrent blktraces are not allowed on loop0 attempt to access beyond end of device loop0: rw=4096, want=2064, limit=267 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed ldm_validate_privheads(): Disk read failed. loop4: p2 < > loop4: partition table partially beyond EOD, truncated ldm_validate_privheads(): Disk read failed. xt_TCPMSS: Only works on TCP SYN packets PF_BRIDGE: br_mdb_parse() with invalid ifindex blktrace: Concurrent blktraces are not allowed on loop0 loop4: p2 < > x_tables: ip_tables: ah match: only valid for protocol 51 BTRFS info (device loop0): setting 8 feature flag loop4: partition table partially beyond EOD, truncated BTRFS info (device loop0): force lzo compression BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents x_tables: ip_tables: ah match: only valid for protocol 51 EXT4-fs (loop2): invalid inodes per group: 65527 xt_TCPMSS: Only works on TCP SYN packets PF_BRIDGE: br_mdb_parse() with invalid attr EXT4-fs (loop2): invalid inodes per group: 65527 attempt to access beyond end of device loop0: rw=4096, want=2064, limit=267 BTRFS error (device loop0): failed to read chunk root ldm_validate_privheads(): Disk read failed. loop4: p2 < > loop4: partition table partially beyond EOD, truncated BTRFS error (device loop0): open_ctree failed BTRFS info (device loop0): setting 8 feature flag BTRFS info (device loop0): force lzo compression BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents x_tables: ip_tables: ah match: only valid for protocol 51 PF_BRIDGE: br_mdb_parse() with invalid entry PF_BRIDGE: br_mdb_parse() with invalid entry x_tables: ip_tables: ah match: only valid for protocol 51 PF_BRIDGE: br_mdb_parse() with invalid entry attempt to access beyond end of device loop0: rw=4096, want=2064, limit=267 x_tables: ip_tables: ah match: only valid for protocol 51 x_tables: ip_tables: ah match: only valid for protocol 51 BTRFS error (device loop0): failed to read chunk root PF_BRIDGE: br_mdb_parse() with invalid ifindex BTRFS error (device loop0): open_ctree failed PF_BRIDGE: br_mdb_parse() with invalid ifindex ldm_validate_privheads(): Disk read failed. loop4: p2 < > loop4: partition table partially beyond EOD, truncated nla_parse: 5 callbacks suppressed netlink: 32 bytes leftover after parsing attributes in process `syz-executor.1'. BTRFS info (device loop0): setting 8 feature flag BTRFS info (device loop0): force lzo compression PF_BRIDGE: br_mdb_parse() with invalid attr BTRFS info (device loop0): disk space caching is enabled (unnamed net_device) (uninitialized): option resend_igmp: invalid value (18446744073709551615) (unnamed net_device) (uninitialized): option resend_igmp: allowed values 0 - 255 BTRFS info (device loop0): has skinny extents x_tables: ip_tables: ah match: only valid for protocol 51 netlink: 32 bytes leftover after parsing attributes in process `syz-executor.1'. PF_BRIDGE: br_mdb_parse() with invalid attr (unnamed net_device) (uninitialized): option resend_igmp: invalid value (18446744073709551615) (unnamed net_device) (uninitialized): option resend_igmp: allowed values 0 - 255 ldm_validate_privheads(): Disk read failed. loop4: p2 < > PF_BRIDGE: br_mdb_parse() with invalid entry loop4: partition table partially beyond EOD, truncated attempt to access beyond end of device loop0: rw=4096, want=2064, limit=267 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed x_tables: ip_tables: ah match: only valid for protocol 51 print_req_error: I/O error, dev loop2, sector 0 x_tables: ip_tables: ah match: only valid for protocol 51 x_tables: ip_tables: ah match: only valid for protocol 51 x_tables: ip_tables: ah match: only valid for protocol 51 PF_BRIDGE: br_mdb_parse() with invalid ifindex x_tables: ip_tables: ah match: only valid for protocol 51 x_tables: ip_tables: ah match: only valid for protocol 51 BTRFS info (device loop2): setting 8 feature flag BTRFS info (device loop2): force lzo compression BTRFS info (device loop2): disk space caching is enabled x_tables: ip_tables: ah match: only valid for protocol 51 BTRFS info (device loop2): has skinny extents x_tables: ip_tables: ah match: only valid for protocol 51 attempt to access beyond end of device loop2: rw=4096, want=2064, limit=267 ldm_validate_privheads(): Disk read failed. block nbd3: not configured, cannot reconfigure BTRFS error (device loop2): failed to read chunk root loop4: p2 < > netlink: 32 bytes leftover after parsing attributes in process `syz-executor.1'. loop4: partition table partially beyond EOD, truncated PF_BRIDGE: br_mdb_parse() with invalid attr block nbd3: not configured, cannot reconfigure BTRFS error (device loop2): open_ctree failed BTRFS info (device loop0): setting 8 feature flag BTRFS info (device loop0): force lzo compression BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents x_tables: ip_tables: ah match: only valid for protocol 51 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. tmpfs: Bad value 'local=relative' for mount option 'mpol' tmpfs: Bad value 'local=relative' for mount option 'mpol' netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. ip6_tables: ip6tables: counters copy to user failed while replacing table netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. ip6_tables: ip6tables: counters copy to user failed while replacing table PF_BRIDGE: br_mdb_parse() with invalid entry attempt to access beyond end of device loop0: rw=4096, want=2064, limit=267 BTRFS error (device loop0): failed to read chunk root netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. BTRFS error (device loop0): open_ctree failed netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. ldm_validate_privheads(): Disk read failed. loop4: p2 < > loop4: partition table partially beyond EOD, truncated netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. BTRFS info (device loop0): setting 8 feature flag BTRFS info (device loop0): force lzo compression BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents x_tables: ip_tables: ah match: only valid for protocol 51 PF_BRIDGE: br_mdb_parse() with invalid ifindex netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. ldm_validate_privheads(): Disk read failed. loop4: p2 < > loop4: partition table partially beyond EOD, truncated PF_BRIDGE: br_mdb_parse() with invalid entry attempt to access beyond end of device loop0: rw=4096, want=2064, limit=267 x_tables: ip_tables: ah match: only valid for protocol 51 BTRFS error (device loop0): failed to read chunk root IPVS: ftp: loaded support on port[0] = 21 BTRFS error (device loop0): open_ctree failed PF_BRIDGE: br_mdb_parse() with invalid ifindex BTRFS info (device loop0): setting 8 feature flag PF_BRIDGE: br_mdb_parse() with invalid attr BTRFS info (device loop0): force lzo compression BTRFS info (device loop0): disk space caching is enabled ldm_validate_privheads(): Disk read failed. overlayfs: fs on './file0' does not support file handles, falling back to index=off. loop4: p2 < > IPVS: ftp: loaded support on port[0] = 21 PF_BRIDGE: br_mdb_parse() with invalid attr BTRFS info (device loop0): has skinny extents x_tables: ip_tables: ah match: only valid for protocol 51 loop4: partition table partially beyond EOD, truncated overlayfs: filesystem on './bus' not supported as upperdir ldm_validate_privheads(): Disk read failed. loop4: p2 < > loop4: partition table partially beyond EOD, truncated attempt to access beyond end of device loop0: rw=4096, want=2064, limit=267 ldm_validate_privheads(): Disk read failed. BTRFS error (device loop0): failed to read chunk root loop4: p2 < > loop4: partition table partially beyond EOD, truncated BTRFS error (device loop0): open_ctree failed Error parsing options; rc = [-22] ldm_validate_privheads(): Disk read failed. loop4: p2 < > loop4: partition table partially beyond EOD, truncated BTRFS info (device loop0): setting 8 feature flag PF_BRIDGE: br_mdb_parse() with invalid attr BTRFS info (device loop0): force lzo compression BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents PF_BRIDGE: br_mdb_parse() with invalid ifindex attempt to access beyond end of device loop0: rw=4096, want=2064, limit=267 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed BTRFS info (device loop0): setting 8 feature flag BTRFS info (device loop0): force lzo compression BTRFS info (device loop0): disk space caching is enabled