syzbot


possible deadlock in inet_bind

Status: auto-closed as invalid on 2019/02/22 14:29
First crash: 2162d, last: 2110d

Sample crash report:
attempt to access beyond end of device
loop6: rw=536870912, want=131, limit=112
device lo entered promiscuous mode

======================================================
[ INFO: possible circular locking dependency detected ]
4.9.111-g03c70fe #6 Not tainted
-------------------------------------------------------
syz-executor1/8649 is trying to acquire lock:
 (sk_lock-AF_INET){+.+.+.}, at: [<ffffffff83420c16>] lock_sock include/net/sock.h:1404 [inline]
 (sk_lock-AF_INET){+.+.+.}, at: [<ffffffff83420c16>] inet_bind+0x2a6/0x8b0 net/ipv4/af_inet.c:502
but task is already holding lock:
 (rtnl_mutex){+.+.+.}, at: [<ffffffff830b4937>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:70
which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (rtnl_mutex){+.+.+.}:
       lock_acquire+0x130/0x3e0 kernel/locking/lockdep.c:3756
       __mutex_lock_common kernel/locking/mutex.c:521 [inline]
       mutex_lock_nested+0xc0/0x870 kernel/locking/mutex.c:621
       rtnl_lock+0x17/0x20 net/core/rtnetlink.c:70
       mrtsock_destruct+0x3b/0x1e0 net/ipv4/ipmr.c:1231
       ip_ra_control+0x2c2/0x420 net/ipv4/ip_sockglue.c:360
       do_ip_setsockopt.isra.13+0x15ff/0x2b10 net/ipv4/ip_sockglue.c:1137
       ip_setsockopt+0x3a/0xb0 net/ipv4/ip_sockglue.c:1240
       raw_setsockopt+0xb7/0xd0 net/ipv4/raw.c:833
       sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2706
       SYSC_setsockopt net/socket.c:1772 [inline]
       SyS_setsockopt+0x166/0x260 net/socket.c:1751
       do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
       entry_SYSCALL_64_after_swapgs+0x5d/0xdb

-> #0 (sk_lock-AF_INET){+.+.+.}:
       check_prev_add kernel/locking/lockdep.c:1828 [inline]
       check_prevs_add kernel/locking/lockdep.c:1938 [inline]
       validate_chain kernel/locking/lockdep.c:2265 [inline]
       __lock_acquire+0x3019/0x4070 kernel/locking/lockdep.c:3345
       lock_acquire+0x130/0x3e0 kernel/locking/lockdep.c:3756
       lock_sock_nested+0xc6/0x120 net/core/sock.c:2511
       lock_sock include/net/sock.h:1404 [inline]
       inet_bind+0x2a6/0x8b0 net/ipv4/af_inet.c:502
       make_receive_sock net/netfilter/ipvs/ip_vs_sync.c:1555 [inline]
       start_sync_thread+0x1356/0x1e80 net/netfilter/ipvs/ip_vs_sync.c:1887
       do_ip_vs_set_ctl+0x7c8/0xc00 net/netfilter/ipvs/ip_vs_ctl.c:2398
       nf_sockopt net/netfilter/nf_sockopt.c:105 [inline]
       nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114
       ip_setsockopt+0x9a/0xb0 net/ipv4/ip_sockglue.c:1247
       tcp_setsockopt+0x88/0xe0 net/ipv4/tcp.c:2758
       sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2706
       SYSC_setsockopt net/socket.c:1772 [inline]
       SyS_setsockopt+0x166/0x260 net/socket.c:1751
       do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
       entry_SYSCALL_64_after_swapgs+0x5d/0xdb

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(rtnl_mutex);
                               lock(sk_lock-AF_INET);
                               lock(rtnl_mutex);
  lock(sk_lock-AF_INET);

 *** DEADLOCK ***

2 locks held by syz-executor1/8649:
 #0:  (rtnl_mutex){+.+.+.}, at: [<ffffffff830b4937>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:70
 #1:  (ipvs->sync_mutex){+.+.+.}, at: [<ffffffff832f5188>] start_sync_thread+0x118/0x1e80 net/netfilter/ipvs/ip_vs_sync.c:1779

stack backtrace:
CPU: 1 PID: 8649 Comm: syz-executor1 Not tainted 4.9.111-g03c70fe #6
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801caf3f568 ffffffff81eb2729 ffffffff855e7800 ffffffff8559cef0
 ffffffff855e7800 ffff8801cc25d0e8 ffff8801cc25c800 ffff8801caf3f5b0
 ffffffff814263a4 0000000000000001 00000000cc25c800 0000000000000001
Call Trace:
 [<ffffffff81eb2729>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81eb2729>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff814263a4>] print_circular_bug.cold.51+0x1bd/0x27d kernel/locking/lockdep.c:1202
 [<ffffffff81239189>] check_prev_add kernel/locking/lockdep.c:1828 [inline]
 [<ffffffff81239189>] check_prevs_add kernel/locking/lockdep.c:1938 [inline]
 [<ffffffff81239189>] validate_chain kernel/locking/lockdep.c:2265 [inline]
 [<ffffffff81239189>] __lock_acquire+0x3019/0x4070 kernel/locking/lockdep.c:3345
 [<ffffffff8123ac50>] lock_acquire+0x130/0x3e0 kernel/locking/lockdep.c:3756
 [<ffffffff830236a6>] lock_sock_nested+0xc6/0x120 net/core/sock.c:2511
 [<ffffffff83420c16>] lock_sock include/net/sock.h:1404 [inline]
 [<ffffffff83420c16>] inet_bind+0x2a6/0x8b0 net/ipv4/af_inet.c:502
 [<ffffffff832f63c6>] make_receive_sock net/netfilter/ipvs/ip_vs_sync.c:1555 [inline]
 [<ffffffff832f63c6>] start_sync_thread+0x1356/0x1e80 net/netfilter/ipvs/ip_vs_sync.c:1887
 [<ffffffff832e2d48>] do_ip_vs_set_ctl+0x7c8/0xc00 net/netfilter/ipvs/ip_vs_ctl.c:2398
 [<ffffffff831ddf3d>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline]
 [<ffffffff831ddf3d>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114
 [<ffffffff8334817a>] ip_setsockopt+0x9a/0xb0 net/ipv4/ip_sockglue.c:1247
 [<ffffffff83367fe8>] tcp_setsockopt+0x88/0xe0 net/ipv4/tcp.c:2758
 [<ffffffff8301c75a>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2706
 [<ffffffff83019516>] SYSC_setsockopt net/socket.c:1772 [inline]
 [<ffffffff83019516>] SyS_setsockopt+0x166/0x260 net/socket.c:1751
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff839f8cd3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0
IPVS: sync thread started: state = MASTER, mcast_ifn = lo, syncid = 0, id = 0
attempt to access beyond end of device
loop7: rw=536870912, want=130, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=131, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=132, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=133, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=142, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=143, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=144, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=145, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=2193, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=4241, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=6289, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=8337, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=10385, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=12433, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=14481, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=16529, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=18577, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=20625, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=22673, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=24721, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=26769, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=28817, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=30865, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=32889, limit=112
pktgen: kernel_thread() failed for cpu 0
pktgen: Cannot create thread for cpu 0 (-4)
pktgen: kernel_thread() failed for cpu 1
pktgen: Cannot create thread for cpu 1 (-4)
pktgen: Initialization failed for all threads
IPv6: Can't replace route, no match found
FAT-fs (loop5): bogus number of reserved sectors
FAT-fs (loop5): Can't find a valid FAT filesystem
ISOFS: Unable to identify CD-ROM format.
ISOFS: Unable to identify CD-ROM format.
pktgen: kernel_thread() failed for cpu 0
pktgen: Cannot create thread for cpu 0 (-4)
pktgen: kernel_thread() failed for cpu 1
pktgen: Cannot create thread for cpu 1 (-4)
pktgen: Initialization failed for all threads
FAT-fs (loop4): bogus number of reserved sectors
FAT-fs (loop4): Can't find a valid FAT filesystem
pktgen: kernel_thread() failed for cpu 0
pktgen: Cannot create thread for cpu 0 (-4)
pktgen: kernel_thread() failed for cpu 1
pktgen: Cannot create thread for cpu 1 (-4)
pktgen: Initialization failed for all threads
blk_update_request: 250 callbacks suppressed
blk_update_request: I/O error, dev loop0, sector 0
blk_update_request: I/O error, dev loop0, sector 8
blk_update_request: I/O error, dev loop0, sector 16
blk_update_request: I/O error, dev loop0, sector 24
blk_update_request: I/O error, dev loop0, sector 32
blk_update_request: I/O error, dev loop0, sector 40
blk_update_request: I/O error, dev loop0, sector 48
blk_update_request: I/O error, dev loop0, sector 56
blk_update_request: I/O error, dev loop0, sector 64
blk_update_request: I/O error, dev loop0, sector 72
attempt to access beyond end of device
loop7: rw=536870912, want=114, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=115, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=116, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=117, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=130, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=131, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=132, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=133, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=2189, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=4237, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=6285, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=8333, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=10381, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=12429, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=14477, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=16525, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=18573, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=20621, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=22669, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=24717, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=26765, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=28813, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=30861, limit=112
attempt to access beyond end of device
loop7: rw=536870912, want=32885, limit=112
pktgen: kernel_thread() failed for cpu 0
pktgen: Cannot create thread for cpu 0 (-4)
pktgen: kernel_thread() failed for cpu 1
pktgen: Cannot create thread for cpu 1 (-4)
pktgen: Initialization failed for all threads
pktgen: kernel_thread() failed for cpu 0
pktgen: Cannot create thread for cpu 0 (-4)
pktgen: kernel_thread() failed for cpu 1
pktgen: Cannot create thread for cpu 1 (-4)
pktgen: Initialization failed for all threads
pktgen: kernel_thread() failed for cpu 0
pktgen: Cannot create thread for cpu 0 (-4)
pktgen: kernel_thread() failed for cpu 1
pktgen: Cannot create thread for cpu 1 (-4)
pktgen: Initialization failed for all threads
FAT-fs (loop5): bogus number of reserved sectors
FAT-fs (loop5): Can't find a valid FAT filesystem
buffer_io_error: 315 callbacks suppressed
Buffer I/O error on dev loop6, logical block 130, lost async page write
attempt to access beyond end of device
loop6: rw=536870912, want=132, limit=112
Buffer I/O error on dev loop6, logical block 131, lost async page write
attempt to access beyond end of device
loop6: rw=536870912, want=133, limit=112
Buffer I/O error on dev loop6, logical block 132, lost async page write
attempt to access beyond end of device
loop6: rw=536870912, want=142, limit=112
Buffer I/O error on dev loop6, logical block 141, lost async page write
attempt to access beyond end of device
loop6: rw=536870912, want=143, limit=112
Buffer I/O error on dev loop6, logical block 142, lost async page write
attempt to access beyond end of device
loop6: rw=536870912, want=144, limit=112
Buffer I/O error on dev loop6, logical block 143, lost async page write
attempt to access beyond end of device
loop6: rw=536870912, want=145, limit=112
Buffer I/O error on dev loop6, logical block 144, lost async page write
pktgen: kernel_thread() failed for cpu 0
attempt to access beyond end of device
loop6: rw=536870912, want=2193, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=4241, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=6289, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=8337, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=10385, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=12433, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=14481, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=16529, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=18577, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=20625, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=22673, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=24721, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=26769, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=28817, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=30865, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=32889, limit=112
pktgen: Cannot create thread for cpu 0 (-4)
pktgen: kernel_thread() failed for cpu 1
pktgen: Cannot create thread for cpu 1 (-4)
pktgen: Initialization failed for all threads
attempt to access beyond end of device
loop6: rw=536870912, want=114, limit=112
pktgen: kernel_thread() failed for cpu 0
pktgen: Cannot create thread for cpu 0 (-4)
pktgen: kernel_thread() failed for cpu 1
pktgen: Cannot create thread for cpu 1 (-4)
pktgen: Initialization failed for all threads
Buffer I/O error on dev loop0, logical block 0, lost async page write
Buffer I/O error on dev loop0, logical block 1, lost async page write
Buffer I/O error on dev loop0, logical block 2, lost async page write
attempt to access beyond end of device
loop6: rw=536870912, want=115, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=116, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=117, limit=112
attempt to access beyond end of device
pktgen: kernel_thread() failed for cpu 1
pktgen: Cannot create thread for cpu 1 (-4)
loop6: rw=536870912, want=130, limit=112
IPVS: Creating netns size=2536 id=14
attempt to access beyond end of device
loop6: rw=536870912, want=131, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=132, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=133, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=2189, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=4237, limit=112
IPVS: Creating netns size=2536 id=15
attempt to access beyond end of device
device lo entered promiscuous mode
IPVS: Creating netns size=2536 id=16
IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0
IPVS: You probably need to specify IP address on multicast interface.
IPVS: sync thread started: state = MASTER, mcast_ifn = lo, syncid = 0, id = 0
IPVS: Creating netns size=2536 id=17
device lo entered promiscuous mode
device lo entered promiscuous mode
IPVS: You probably need to specify IP address on multicast interface.
IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0
IPVS: sync thread started: state = MASTER, mcast_ifn = lo, syncid = 0, id = 0
IPVS: You probably need to specify IP address on multicast interface.
IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0
IPVS: sync thread started: state = MASTER, mcast_ifn = lo, syncid = 0, id = 0
loop6: rw=536870912, want=6285, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=8333, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=10381, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=12429, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=14477, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=16525, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=18573, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=20621, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=22669, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=24717, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=26765, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=28813, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=30861, limit=112
attempt to access beyond end of device
loop6: rw=536870912, want=32885, limit=112
IPVS: Creating netns size=2536 id=18
device lo entered promiscuous mode
IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0
IPVS: You probably need to specify IP address on multicast interface.
IPVS: sync thread started: state = MASTER, mcast_ifn = lo, syncid = 0, id = 0
IPVS: Creating netns size=2536 id=19
device lo entered promiscuous mode
IPVS: Creating netns size=2536 id=20
IPVS: You probably need to specify IP address on multicast interface.
IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0
IPVS: sync thread started: state = MASTER, mcast_ifn = lo, syncid = 0, id = 0
device lo entered promiscuous mode
IPVS: You probably need to specify IP address on multicast interface.
IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0
IPVS: sync thread started: state = MASTER, mcast_ifn = lo, syncid = 0, id = 0
IPVS: Creating netns size=2536 id=21
device lo entered promiscuous mode
IPVS: You probably need to specify IP address on multicast interface.
IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0
IPVS: sync thread started: state = MASTER, mcast_ifn = lo, syncid = 0, id = 0
IPVS: stopping master sync thread 8875 ...
IPVS: stopping backup sync thread 8874 ...
IPVS: stopping master sync thread 8845 ...
IPVS: stopping backup sync thread 8842 ...
IPVS: stopping master sync thread 8840 ...
IPVS: stopping backup sync thread 8834 ...
IPVS: stopping master sync thread 8828 ...
IPVS: stopping backup sync thread 8827 ...
device lo entered promiscuous mode
device lo entered promiscuous mode
IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0
device lo entered promiscuous mode
IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0
IPVS: sync thread started: state = MASTER, mcast_ifn = lo, syncid = 0, id = 0
IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0
IPVS: sync thread started: state = MASTER, mcast_ifn = lo, syncid = 0, id = 0
IPVS: sync thread started: state = MASTER, mcast_ifn = lo, syncid = 0, id = 0
pktgen: kernel_thread() failed for cpu 0
pktgen: Cannot create thread for cpu 0 (-4)
pktgen: kernel_thread() failed for cpu 1
pktgen: Cannot create thread for cpu 1 (-4)
pktgen: Initialization failed for all threads
pktgen: kernel_thread() failed for cpu 0
pktgen: Cannot create thread for cpu 0 (-4)
pktgen: kernel_thread() failed for cpu 1
pktgen: Cannot create thread for cpu 1 (-4)
pktgen: Initialization failed for all threads
pktgen: kernel_thread() failed for cpu 0
pktgen: Cannot create thread for cpu 0 (-4)
pktgen: kernel_thread() failed for cpu 1
pktgen: Cannot create thread for cpu 1 (-4)
pktgen: Initialization failed for all threads
blk_update_request: 1028 callbacks suppressed
blk_update_request: I/O error, dev loop0, sector 0
buffer_io_error: 783 callbacks suppressed
Buffer I/O error on dev loop0, logical block 0, lost async page write
blk_update_request: I/O error, dev loop0, sector 8
Buffer I/O error on dev loop0, logical block 1, lost async page write
blk_update_request: I/O error, dev loop0, sector 16
Buffer I/O error on dev loop0, logical block 2, lost async page write
blk_update_request: I/O error, dev loop0, sector 24
Buffer I/O error on dev loop0, logical block 3, lost async page write
blk_update_request: I/O error, dev loop0, sector 32
Buffer I/O error on dev loop0, logical block 4, lost async page write
blk_update_request: I/O error, dev loop0, sector 40
Buffer I/O error on dev loop0, logical block 5, lost async page write
blk_update_request: I/O error, dev loop0, sector 48
Buffer I/O error on dev loop0, logical block 6, lost async page write
blk_update_request: I/O error, dev loop0, sector 56
Buffer I/O error on dev loop0, logical block 7, lost async page write
blk_update_request: I/O error, dev loop0, sector 64
Buffer I/O error on dev loop0, logical block 8, lost async page write
blk_update_request: I/O error, dev loop0, sector 72
Buffer I/O error on dev loop0, logical block 9, lost async page write
IPVS: stopping master sync thread 8888 ...
IPVS: stopping backup sync thread 8887 ...
IPVS: stopping master sync thread 8885 ...
IPVS: stopping backup sync thread 8884 ...
IPVS: stopping master sync thread 8880 ...
IPVS: stopping backup sync thread 8879 ...

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/07/08 14:41 https://android.googlesource.com/kernel/common android-4.9 03c70feafdb2 c9a7a4dc .config console log report ci-android-49-kasan-gce-root
2018/06/18 10:44 https://android.googlesource.com/kernel/common android-4.9 a4230beab30a 27c5f59f .config console log report ci-android-49-kasan-gce-root
2018/06/17 18:00 https://android.googlesource.com/kernel/common android-4.9 a4230beab30a 27c5f59f .config console log report ci-android-49-kasan-gce-root
2018/05/31 02:42 https://android.googlesource.com/kernel/common android-4.9 135beb9cf36c 2f93b54f .config console log report ci-android-49-kasan-gce-root
2018/05/27 20:58 https://android.googlesource.com/kernel/common android-4.9 0cecdf831513 f48c20b8 .config console log report ci-android-49-kasan-gce-root
2018/05/17 18:19 https://android.googlesource.com/kernel/common android-4.9 73fdfa38c59d 738d58ad .config console log report ci-android-49-kasan-gce-root
* Struck through repros no longer work on HEAD.