IPVS: set_ctl: invalid protocol: 0 0.0.0.0:0
IPVS: set_ctl: invalid protocol: 0 0.0.0.0:0
======================================================
WARNING: possible circular locking dependency detected
4.14.228-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.2/18650 is trying to acquire lock:
(&p->lock){+.+.}, at: [<ffffffff818e708a>] seq_read+0xba/0x1120 fs/seq_file.c:165
but task is already holding lock:
(sb_writers#3){.+.+}, at: [<ffffffff81868d2f>] file_start_write include/linux/fs.h:2712 [inline]
(sb_writers#3){.+.+}, at: [<ffffffff81868d2f>] 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_create_object+0x75/0x1d0 fs/overlayfs/dir.c:538
lookup_open+0x77a/0x1750 fs/namei.c:3241
do_last fs/namei.c:3334 [inline]
path_openat+0xe08/0x2970 fs/namei.c:3569
do_filp_open+0x179/0x3c0 fs/namei.c:3603
do_sys_open+0x296/0x410 fs/open.c:1081
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]){++++}:
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]#2){++++}:
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_stack+0x13f/0x2f0 fs/proc/base.c:457
proc_single_show+0xe7/0x150 fs/proc/base.c:761
seq_read+0x4cf/0x1120 fs/seq_file.c:237
__vfs_read+0xe4/0x620 fs/read_write.c:411
vfs_read+0x139/0x340 fs/read_write.c:447
SYSC_read fs/read_write.c:574 [inline]
SyS_read+0xf2/0x210 fs/read_write.c:567
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
proc_reg_read+0xee/0x1a0 fs/proc/inode.c:217
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] --> sb_writers#3
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(sb_writers#3);
lock(&ovl_i_mutex_dir_key[depth]);
lock(sb_writers#3);
lock(&p->lock);
*** DEADLOCK ***
1 lock held by syz-executor.2/18650:
#0: (sb_writers#3){.+.+}, at: [<ffffffff81868d2f>] file_start_write include/linux/fs.h:2712 [inline]
#0: (sb_writers#3){.+.+}, at: [<ffffffff81868d2f>] do_sendfile+0x84f/0xb30 fs/read_write.c:1440
stack backtrace:
CPU: 1 PID: 18650 Comm: syz-executor.2 Not tainted 4.14.228-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
proc_reg_read+0xee/0x1a0 fs/proc/inode.c:217
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:00007f7fe3075188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000005
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 4000000000010046 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffefc4fa04f R14: 00007f7fe3075300 R15: 0000000000022000
EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
base_sock_release(ffff88808e58d500) sk=ffff8880962a6e40
EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
Bluetooth: hci5 command 0x041b tx timeout
BTRFS: device fsid f90cac8b-044b-4fa8-8bee-4b8d3da88dc2 devid 1 transid 7 /dev/loop2
cramfs: Error -3 while decompressing!
cramfs: ffffffff8bf2bf78(27)->ffff888042070000(4096)
cramfs: Error -3 while decompressing!
cramfs: ffffffff8bf2bf78(27)->ffff888042070000(4096)
BTRFS info (device loop2): disabling disk space caching
audit: type=1800 audit(1617364548.083:70): pid=18737 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor.5" name="file0" dev="loop5" ino=244 res=0
BTRFS info (device loop2): force zlib compression
BTRFS info (device loop2): turning on flush-on-commit
BTRFS info (device loop2): has skinny extents
BTRFS error (device loop2): bad tree block start 0 5296128
BTRFS error (device loop2): open_ctree failed
BTRFS info (device loop2): disabling disk space caching
base_sock_release(ffff888044029680) sk=ffff88804b7d05c0
BTRFS info (device loop2): force zlib compression
BTRFS info (device loop2): turning on flush-on-commit
BTRFS info (device loop2): has skinny extents
base_sock_release(ffff88808def1a00) sk=ffff88804d406900
BTRFS error (device loop2): open_ctree failed
base_sock_release(ffff88804af16a00) sk=ffff88804eaa6440
base_sock_release(ffff88808de45180) sk=ffff88804db5cc00
base_sock_release(ffff88808df88100) sk=ffff8880aba96640
base_sock_release(ffff888045bec000) sk=ffff88804e01c140
netlink: 28 bytes leftover after parsing attributes in process `syz-executor.5'.
base_sock_release(ffff88808de0f540) sk=ffff8880b071f5c0
netlink: 28 bytes leftover after parsing attributes in process `syz-executor.5'.
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
base_sock_release(ffff88808dedf140) sk=ffff888051ec20c0
audit: type=1804 audit(1617364552.004:71): pid=18952 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir489664001/syzkaller.sPbXkL/12/bus" dev="sda1" ino=14618 res=1
base_sock_release(ffff88808dfc3a40) sk=ffff88804ba42e80
netlink: 28 bytes leftover after parsing attributes in process `syz-executor.5'.
base_sock_release(ffff8880977be1c0) sk=ffff8880a06a8240
base_sock_release(ffff88804aef8900) sk=ffff888051524c00
netlink: 28 bytes leftover after parsing attributes in process `syz-executor.5'.
base_sock_release(ffff88808de9da00) sk=ffff888051e04580
netlink: 28 bytes leftover after parsing attributes in process `syz-executor.5'.
base_sock_release(ffff88808e65f040) sk=ffff88809ad96300
audit: type=1804 audit(1617364552.864:72): pid=19049 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir489664001/syzkaller.sPbXkL/12/bus" dev="sda1" ino=14618 res=1
audit: type=1804 audit(1617364552.884:73): pid=19044 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir489664001/syzkaller.sPbXkL/12/bus" dev="sda1" ino=14618 res=1
base_sock_release(ffff88808df229c0) sk=ffff8880a2b98d40
FAT-fs (loop0): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
base_sock_release(ffff88804ad4e540) sk=ffff88804dcb1300
base_sock_release(ffff88804af880c0) sk=ffff8880452ecb80
netlink: 28 bytes leftover after parsing attributes in process `syz-executor.5'.
base_sock_release(ffff88804acbca00) sk=ffff88804dfb2e80
audit: type=1804 audit(1617364553.324:74): pid=19109 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir430060060/syzkaller.0N7ixr/340/file0/bus" dev="loop0" ino=132 res=1
netlink: 28 bytes leftover after parsing attributes in process `syz-executor.5'.
FAT-fs (loop0): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
audit: type=1804 audit(1617364553.434:75): pid=19109 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir430060060/syzkaller.0N7ixr/340/file0/file0/bus" dev="loop0" ino=134 res=1
base_sock_release(ffff88808def00c0) sk=ffff88804e119140
Bluetooth: hci0 command 0x0406 tx timeout
Bluetooth: hci2 command 0x0406 tx timeout
Bluetooth: hci1 command 0x0406 tx timeout
FAT-fs (loop0): Unrecognized mount option "0xffffffffffffffff017777777777777777777770x0000000000000000" or missing value
base_sock_release(ffff88804ae71b00) sk=ffff8880994bd240
audit: type=1800 audit(1617364556.094:76): pid=19173 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="file0" dev="sda1" ino=14651 res=0
audit: type=1804 audit(1617364556.094:77): pid=19173 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir430060060/syzkaller.0N7ixr/341/file0/file0" dev="sda1" ino=14651 res=1
base_sock_release(ffff888045841180) sk=ffff8880b3bc6240
audit: type=1804 audit(1617364556.094:78): pid=19173 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.0" name="/root/syzkaller-testdir430060060/syzkaller.0N7ixr/341/file0/file0" dev="sda1" ino=14651 res=1