bridge0: port 1(bridge_slave_0) entered disabled state ====================================================== WARNING: possible circular locking dependency detected 4.17.0-rc7+ #76 Not tainted ------------------------------------------------------ syz-executor4/19792 is trying to acquire lock: 00000000a3432de8 (rlock-AF_UNIX){+.+.}, at: skb_queue_tail+0x26/0x150 net/core/skbuff.c:2915 but task is already holding lock: 00000000ea56954b (&(&u->lock)->rlock/1){+.+.}, at: unix_state_double_lock+0x80/0xb0 net/unix/af_unix.c:1078 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&(&u->lock)->rlock/1){+.+.}: _raw_spin_lock_nested+0x28/0x40 kernel/locking/spinlock.c:354 sk_diag_dump_icons net/unix/diag.c:82 [inline] sk_diag_fill.isra.5+0xa43/0x10d0 net/unix/diag.c:144 sk_diag_dump net/unix/diag.c:178 [inline] unix_diag_dump+0x35f/0x550 net/unix/diag.c:206 netlink_dump+0x507/0xd20 net/netlink/af_netlink.c:2226 __netlink_dump_start+0x51a/0x780 net/netlink/af_netlink.c:2323 netlink_dump_start include/linux/netlink.h:214 [inline] unix_diag_handler_dump+0x3f4/0x7b0 net/unix/diag.c:307 __sock_diag_cmd net/core/sock_diag.c:230 [inline] sock_diag_rcv_msg+0x2e0/0x3d0 net/core/sock_diag.c:261 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2448 sock_diag_rcv+0x2a/0x40 net/core/sock_diag.c:272 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x58b/0x740 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x9f0/0xfa0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:639 sock_write_iter+0x35a/0x5a0 net/socket.c:908 call_write_iter include/linux/fs.h:1784 [inline] do_iter_readv_writev+0x859/0xa50 fs/read_write.c:680 do_iter_write+0x185/0x5f0 fs/read_write.c:959 vfs_writev+0x1c7/0x330 fs/read_write.c:1004 do_writev+0x112/0x2f0 fs/read_write.c:1039 __do_sys_writev fs/read_write.c:1112 [inline] __se_sys_writev fs/read_write.c:1109 [inline] __x64_sys_writev+0x75/0xb0 fs/read_write.c:1109 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (rlock-AF_UNIX){+.+.}: lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x96/0xc0 kernel/locking/spinlock.c:152 skb_queue_tail+0x26/0x150 net/core/skbuff.c:2915 unix_dgram_sendmsg+0xf77/0x1730 net/unix/af_unix.c:1797 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:639 ___sys_sendmsg+0x525/0x940 net/socket.c:2117 __sys_sendmmsg+0x240/0x6f0 net/socket.c:2212 __do_sys_sendmmsg net/socket.c:2241 [inline] __se_sys_sendmmsg net/socket.c:2238 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2238 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&(&u->lock)->rlock/1); lock(rlock-AF_UNIX); lock(&(&u->lock)->rlock/1); lock(rlock-AF_UNIX); *** DEADLOCK *** 1 lock held by syz-executor4/19792: #0: 00000000ea56954b (&(&u->lock)->rlock/1){+.+.}, at: unix_state_double_lock+0x80/0xb0 net/unix/af_unix.c:1078 stack backtrace: CPU: 0 PID: 19792 Comm: syz-executor4 Not tainted 4.17.0-rc7+ #76 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+0x1b9/0x294 lib/dump_stack.c:113 print_circular_bug.isra.36.cold.54+0x1bd/0x27d kernel/locking/lockdep.c:1223 check_prev_add kernel/locking/lockdep.c:1863 [inline] check_prevs_add kernel/locking/lockdep.c:1976 [inline] validate_chain kernel/locking/lockdep.c:2417 [inline] __lock_acquire+0x343e/0x5140 kernel/locking/lockdep.c:3431 lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x96/0xc0 kernel/locking/spinlock.c:152 skb_queue_tail+0x26/0x150 net/core/skbuff.c:2915 unix_dgram_sendmsg+0xf77/0x1730 net/unix/af_unix.c:1797 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:639 ___sys_sendmsg+0x525/0x940 net/socket.c:2117 __sys_sendmmsg+0x240/0x6f0 net/socket.c:2212 __do_sys_sendmmsg net/socket.c:2241 [inline] __se_sys_sendmmsg net/socket.c:2238 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2238 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007f7188c84c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f7188c856d4 RCX: 0000000000455a09 RDX: fffffffffffffdc3 RSI: 00000000200bd000 RDI: 0000000000000018 RBP: 000000000072bf50 R08: 0000000000000000 R09: 0000000000000000 R10: 5a6d8d97750cae5e R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000005aa R14: 00000000006fd890 R15: 0000000000000001 netlink: 16 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor3'. nla_parse: 8 callbacks suppressed netlink: 16 bytes leftover after parsing attributes in process `syz-executor7'. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 20323 Comm: syz-executor4 Not tainted 4.17.0-rc7+ #76 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+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x2af/0x760 mm/slab.c:3552 sock_alloc_inode+0x6f/0x300 net/socket.c:243 alloc_inode+0x63/0x190 fs/inode.c:210 new_inode_pseudo+0x69/0x1a0 fs/inode.c:895 sock_alloc+0x41/0x270 net/socket.c:564 __sock_create+0x161/0x920 net/socket.c:1249 sock_create net/socket.c:1325 [inline] __sys_socket+0x100/0x250 net/socket.c:1355 __do_sys_socket net/socket.c:1364 [inline] __se_sys_socket net/socket.c:1362 [inline] __x64_sys_socket+0x73/0xb0 net/socket.c:1362 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007f7188ca5c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f7188ca66d4 RCX: 0000000000455a09 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000013 R13: 0000000000000708 R14: 00000000006ff960 R15: 0000000000000000 socket: no more sockets FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 20351 Comm: syz-executor4 Not tainted 4.17.0-rc7+ #76 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+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc_trace+0x2cb/0x780 mm/slab.c:3618 kmalloc include/linux/slab.h:512 [inline] sock_alloc_inode+0xb3/0x300 net/socket.c:246 alloc_inode+0x63/0x190 fs/inode.c:210 new_inode_pseudo+0x69/0x1a0 fs/inode.c:895 sock_alloc+0x41/0x270 net/socket.c:564 __sock_create+0x161/0x920 net/socket.c:1249 sock_create net/socket.c:1325 [inline] __sys_socket+0x100/0x250 net/socket.c:1355 __do_sys_socket net/socket.c:1364 [inline] __se_sys_socket net/socket.c:1362 [inline] __x64_sys_socket+0x73/0xb0 net/socket.c:1362 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007f7188ca5c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f7188ca66d4 RCX: 0000000000455a09 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000013 R13: 0000000000000708 R14: 00000000006ff960 R15: 0000000000000001 socket: no more sockets FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 20389 Comm: syz-executor6 Not tainted 4.17.0-rc7+ #76 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+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x2af/0x760 mm/slab.c:3552 alloc_inode+0xb2/0x190 fs/inode.c:212 new_inode_pseudo+0x69/0x1a0 fs/inode.c:895 get_pipe_inode fs/pipe.c:704 [inline] create_pipe_files+0x90/0x940 fs/pipe.c:745 __do_pipe_flags+0x45/0x250 fs/pipe.c:802 do_pipe2+0x95/0x2f0 fs/pipe.c:850 __do_sys_pipe fs/pipe.c:873 [inline] __se_sys_pipe fs/pipe.c:871 [inline] __x64_sys_pipe+0x33/0x40 fs/pipe.c:871 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007fa661323c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000016 RAX: ffffffffffffffda RBX: 00007fa6613246d4 RCX: 0000000000455a09 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000013 R13: 000000000000053b R14: 00000000006fce28 R15: 0000000000000000 CPU: 0 PID: 20390 Comm: syz-executor5 Not tainted 4.17.0-rc7+ #76 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+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x2af/0x760 mm/slab.c:3552 sock_alloc_inode+0x6f/0x300 net/socket.c:243 alloc_inode+0x63/0x190 fs/inode.c:210 new_inode_pseudo+0x69/0x1a0 fs/inode.c:895 sock_alloc+0x41/0x270 net/socket.c:564 __sock_create+0x161/0x920 net/socket.c:1249 sock_create net/socket.c:1325 [inline] __sys_socket+0x100/0x250 net/socket.c:1355 __do_sys_socket net/socket.c:1364 [inline] __se_sys_socket net/socket.c:1362 [inline] __x64_sys_socket+0x73/0xb0 net/socket.c:1362 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458537 RSP: 002b:00007f0e38a499c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f0e38a49a58 RCX: 0000000000458537 RDX: 0000000000000010 RSI: 0000000000000003 RDI: 0000000000000010 RBP: 000000000072bea0 R08: 000000000000000c R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000202 R12: 00007f0e38a49a40 R13: 0000000000000743 R14: 00000000006ffee8 R15: 0000000000000000 socket: no more sockets FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 20399 Comm: syz-executor4 Not tainted 4.17.0-rc7+ #76 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+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x2af/0x760 mm/slab.c:3552 sk_prot_alloc+0x69/0x2e0 net/core/sock.c:1475 sk_alloc+0x104/0x17b0 net/core/sock.c:1535 inet_create+0x4f8/0x1050 net/ipv4/af_inet.c:320 __sock_create+0x526/0x920 net/socket.c:1285 sock_create net/socket.c:1325 [inline] __sys_socket+0x100/0x250 net/socket.c:1355 __do_sys_socket net/socket.c:1364 [inline] __se_sys_socket net/socket.c:1362 [inline] __x64_sys_socket+0x73/0xb0 net/socket.c:1362 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007f7188ca5c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f7188ca66d4 RCX: 0000000000455a09 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000013 R13: 0000000000000708 R14: 00000000006ff960 R15: 0000000000000002 CPU: 1 PID: 20402 Comm: syz-executor5 Not tainted 4.17.0-rc7+ #76 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc_trace+0x2cb/0x780 mm/slab.c:3618 kmalloc include/linux/slab.h:512 [inline] sock_alloc_inode+0xb3/0x300 net/socket.c:246 alloc_inode+0x63/0x190 fs/inode.c:210 new_inode_pseudo+0x69/0x1a0 fs/inode.c:895 sock_alloc+0x41/0x270 net/socket.c:564 __sock_create+0x161/0x920 net/socket.c:1249 sock_create net/socket.c:1325 [inline] __sys_socket+0x100/0x250 net/socket.c:1355 __do_sys_socket net/socket.c:1364 [inline] __se_sys_socket net/socket.c:1362 [inline] __x64_sys_socket+0x73/0xb0 net/socket.c:1362 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458537 RSP: 002b:00007f0e38a499c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f0e38a49a58 RCX: 0000000000458537 RDX: 0000000000000010 RSI: 0000000000000003 RDI: 0000000000000010 RBP: 000000000072bea0 R08: 000000000000000c R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000202 R12: 00007f0e38a49a40 R13: 0000000000000743 R14: 00000000006ffee8 R15: 0000000000000001 CPU: 0 PID: 20409 Comm: syz-executor6 Not tainted 4.17.0-rc7+ #76 socket: no more sockets 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+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc_trace+0x2cb/0x780 mm/slab.c:3618 kmalloc include/linux/slab.h:512 [inline] kzalloc include/linux/slab.h:701 [inline] alloc_pipe_info+0x16d/0x580 fs/pipe.c:633 get_pipe_inode fs/pipe.c:712 [inline] create_pipe_files+0xd0/0x940 fs/pipe.c:745 __do_pipe_flags+0x45/0x250 fs/pipe.c:802 do_pipe2+0x95/0x2f0 fs/pipe.c:850 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 __do_sys_pipe fs/pipe.c:873 [inline] __se_sys_pipe fs/pipe.c:871 [inline] __x64_sys_pipe+0x33/0x40 fs/pipe.c:871 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007fa661323c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000016 RAX: ffffffffffffffda RBX: 00007fa6613246d4 RCX: 0000000000455a09 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000013 R13: 000000000000053b R14: 00000000006fce28 R15: 0000000000000001 CPU: 1 PID: 20428 Comm: syz-executor4 Not tainted 4.17.0-rc7+ #76 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x2af/0x760 mm/slab.c:3552 __d_alloc+0xc0/0xd30 fs/dcache.c:1638 d_alloc_pseudo+0x1d/0x30 fs/dcache.c:1766 sock_alloc_file+0x157/0x4e0 net/socket.c:401 sock_map_fd net/socket.c:437 [inline] __sys_socket+0x16f/0x250 net/socket.c:1359 __do_sys_socket net/socket.c:1364 [inline] __se_sys_socket net/socket.c:1362 [inline] __x64_sys_socket+0x73/0xb0 net/socket.c:1362 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007f7188ca5c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f7188ca66d4 RCX: 0000000000455a09 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000013 R13: 0000000000000708 R14: 00000000006ff960 R15: 0000000000000003 CPU: 0 PID: 20435 Comm: syz-executor5 Not tainted 4.17.0-rc7+ #76 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+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] __do_kmalloc mm/slab.c:3716 [inline] __kmalloc+0x2c8/0x760 mm/slab.c:3727 kmalloc include/linux/slab.h:517 [inline] sk_prot_alloc+0x1ae/0x2e0 net/core/sock.c:1481 sk_alloc+0x104/0x17b0 net/core/sock.c:1535 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 __netlink_create+0x6a/0x270 net/netlink/af_netlink.c:642 netlink_create+0x39c/0x5c0 net/netlink/af_netlink.c:704 __sock_create+0x526/0x920 net/socket.c:1285 sock_create net/socket.c:1325 [inline] __sys_socket+0x100/0x250 net/socket.c:1355 __do_sys_socket net/socket.c:1364 [inline] __se_sys_socket net/socket.c:1362 [inline] __x64_sys_socket+0x73/0xb0 net/socket.c:1362 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458537 RSP: 002b:00007f0e38a499c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f0e38a49a58 RCX: 0000000000458537 RDX: 0000000000000010 RSI: 0000000000000003 RDI: 0000000000000010 RBP: 000000000072bea0 R08: 000000000000000c R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000202 R12: 00007f0e38a49a40 R13: 0000000000000743 R14: 00000000006ffee8 R15: 0000000000000002 CPU: 1 PID: 20448 Comm: syz-executor4 Not tainted 4.17.0-rc7+ #76 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+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x47/0x760 mm/slab.c:3552 kmem_cache_zalloc include/linux/slab.h:691 [inline] fill_pool lib/debugobjects.c:134 [inline] __debug_object_init+0xbc0/0x12c0 lib/debugobjects.c:377 debug_object_init+0x16/0x20 lib/debugobjects.c:429 debug_timer_init kernel/time/timer.c:704 [inline] debug_init kernel/time/timer.c:757 [inline] init_timer_key+0xa1/0x470 kernel/time/timer.c:806 inet_csk_init_xmit_timers+0x3b/0xf0 net/ipv4/inet_connection_sock.c:498 tcp_init_xmit_timers+0x2a/0xb9 net/ipv4/tcp_timer.c:734 tcp_init_sock+0xe2/0xa30 net/ipv4/tcp.c:414 tcp_v4_init_sock+0x15/0x80 net/ipv4/tcp_ipv4.c:1910 inet_create+0xa11/0x1050 net/ipv4/af_inet.c:378 __sock_create+0x526/0x920 net/socket.c:1285 sock_create net/socket.c:1325 [inline] __sys_socket+0x100/0x250 net/socket.c:1355 __do_sys_socket net/socket.c:1364 [inline] __se_sys_socket net/socket.c:1362 [inline] __x64_sys_socket+0x73/0xb0 net/socket.c:1362 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007f7188ca5c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f7188ca66d4 RCX: 0000000000455a09 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000013 R13: 0000000000000708 R14: 00000000006ff960 R15: 0000000000000004 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 20481 Comm: syz-executor5 Not tainted 4.17.0-rc7+ #76 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+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x2af/0x760 mm/slab.c:3552 __d_alloc+0xc0/0xd30 fs/dcache.c:1638 d_alloc_pseudo+0x1d/0x30 fs/dcache.c:1766 sock_alloc_file+0x157/0x4e0 net/socket.c:401 sock_map_fd net/socket.c:437 [inline] __sys_socket+0x16f/0x250 net/socket.c:1359 __do_sys_socket net/socket.c:1364 [inline] __se_sys_socket net/socket.c:1362 [inline] __x64_sys_socket+0x73/0xb0 net/socket.c:1362 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458537 RSP: 002b:00007f0e38a499c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f0e38a49a58 RCX: 0000000000458537 RDX: 0000000000000010 RSI: 0000000000000003 RDI: 0000000000000010 RBP: 000000000072bea0 R08: 000000000000000c R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000202 R12: 00007f0e38a49a40 R13: 0000000000000743 R14: 00000000006ffee8 R15: 0000000000000003 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 20543 Comm: syz-executor5 Not tainted 4.17.0-rc7+ #76 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+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x2af/0x760 mm/slab.c:3552 kmem_cache_zalloc include/linux/slab.h:691 [inline] get_empty_filp+0x125/0x520 fs/file_table.c:122 alloc_file+0x24/0x3e0 fs/file_table.c:163 sock_alloc_file+0x1f3/0x4e0 net/socket.c:410 sock_map_fd net/socket.c:437 [inline] __sys_socket+0x16f/0x250 net/socket.c:1359 __do_sys_socket net/socket.c:1364 [inline] __se_sys_socket net/socket.c:1362 [inline] __x64_sys_socket+0x73/0xb0 net/socket.c:1362 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458537 RSP: 002b:00007f0e38a499c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f0e38a49a58 RCX: 0000000000458537 RDX: 0000000000000010 RSI: 0000000000000003 RDI: 0000000000000010 RBP: 000000000072bea0 R08: 000000000000000c R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000202 R12: 00007f0e38a49a40 R13: 0000000000000743 R14: 00000000006ffee8 R15: 0000000000000004 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 20581 Comm: syz-executor5 Not tainted 4.17.0-rc7+ #76 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+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc_node mm/slab.c:3299 [inline] kmem_cache_alloc_node+0x272/0x780 mm/slab.c:3642 __alloc_skb+0x111/0x780 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:989 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1182 [inline] netlink_sendmsg+0xb01/0xfa0 net/netlink/af_netlink.c:1876 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:639 ___sys_sendmsg+0x805/0x940 net/socket.c:2117 __sys_sendmsg+0x115/0x270 net/socket.c:2155 __do_sys_sendmsg net/socket.c:2164 [inline] __se_sys_sendmsg net/socket.c:2162 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2162 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x40fc01 RSP: 002b:00007f0e38a499c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0e38a49a58 RCX: 000000000040fc01 RDX: 0000000000000000 RSI: 00007f0e38a49a00 RDI: 0000000000000014 RBP: 0000000000000014 R08: 000000000000000c R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000293 R12: 00007f0e38a49a40 R13: 0000000000000743 R14: 00000000006ffee8 R15: 0000000000000005 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 20621 Comm: syz-executor5 Not tainted 4.17.0-rc7+ #76 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+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc_node mm/slab.c:3299 [inline] kmem_cache_alloc_node_trace+0x26f/0x770 mm/slab.c:3661 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3696 __kmalloc_reserve.isra.39+0x3a/0xe0 net/core/skbuff.c:137 __alloc_skb+0x14d/0x780 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:989 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1182 [inline] netlink_sendmsg+0xb01/0xfa0 net/netlink/af_netlink.c:1876 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:639 ___sys_sendmsg+0x805/0x940 net/socket.c:2117 __sys_sendmsg+0x115/0x270 net/socket.c:2155 __do_sys_sendmsg net/socket.c:2164 [inline] __se_sys_sendmsg net/socket.c:2162 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2162 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x40fc01 RSP: 002b:00007f0e38a499c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0e38a49a58 RCX: 000000000040fc01 RDX: 0000000000000000 RSI: 00007f0e38a49a00 RDI: 0000000000000014 RBP: 0000000000000014 R08: 000000000000000c R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000293 R12: 00007f0e38a49a40 R13: 0000000000000743 R14: 00000000006ffee8 R15: 0000000000000006 netlink: 16 bytes leftover after parsing attributes in process `syz-executor7'. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 20681 Comm: syz-executor5 Not tainted 4.17.0-rc7+ #76 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+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc_node mm/slab.c:3299 [inline] kmem_cache_alloc_node+0x272/0x780 mm/slab.c:3642 __alloc_skb+0x111/0x780 net/core/skbuff.c:193 netlink: 16 bytes leftover after parsing attributes in process `syz-executor7'. alloc_skb include/linux/skbuff.h:989 [inline] nlmsg_new include/net/netlink.h:511 [inline] ctrl_build_family_msg+0x3b/0xa0 net/netlink/genetlink.c:806 ctrl_getfamily+0x1ed/0x420 net/netlink/genetlink.c:886 genl_family_rcv_msg+0x889/0x1120 net/netlink/genetlink.c:599 genl_rcv_msg+0xc6/0x170 net/netlink/genetlink.c:624 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2448 genl_rcv+0x28/0x40 net/netlink/genetlink.c:635 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x58b/0x740 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x9f0/0xfa0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:639 ___sys_sendmsg+0x805/0x940 net/socket.c:2117 __sys_sendmsg+0x115/0x270 net/socket.c:2155 __do_sys_sendmsg net/socket.c:2164 [inline] __se_sys_sendmsg net/socket.c:2162 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2162 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x40fc01 RSP: 002b:00007f0e38a499c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0e38a49a58 RCX: 000000000040fc01 RDX: 0000000000000000 RSI: 00007f0e38a49a00 RDI: 0000000000000014 RBP: 0000000000000014 R08: 000000000000000c R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000293 R12: 00007f0e38a49a40 R13: 0000000000000743 R14: 00000000006ffee8 R15: 0000000000000007 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 20715 Comm: syz-executor5 Not tainted 4.17.0-rc7+ #76 netlink: 16 bytes leftover after parsing attributes in process `syz-executor7'. 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+0x1b9/0x294 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 netlink: 16 bytes leftover after parsing attributes in process `syz-executor7'. __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc_node mm/slab.c:3299 [inline] kmem_cache_alloc_node_trace+0x26f/0x770 mm/slab.c:3661 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3696 __kmalloc_reserve.isra.39+0x3a/0xe0 net/core/skbuff.c:137 __alloc_skb+0x14d/0x780 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:989 [inline] nlmsg_new include/net/netlink.h:511 [inline] ctrl_build_family_msg+0x3b/0xa0 net/netlink/genetlink.c:806 ctrl_getfamily+0x1ed/0x420 net/netlink/genetlink.c:886 genl_family_rcv_msg+0x889/0x1120 net/netlink/genetlink.c:599 genl_rcv_msg+0xc6/0x170 net/netlink/genetlink.c:624 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2448 genl_rcv+0x28/0x40 net/netlink/genetlink.c:635 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x58b/0x740 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x9f0/0xfa0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:639 ___sys_sendmsg+0x805/0x940 net/socket.c:2117 __sys_sendmsg+0x115/0x270 net/socket.c:2155 __do_sys_sendmsg net/socket.c:2164 [inline] __se_sys_sendmsg net/socket.c:2162 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2162 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x40fc01 RSP: 002b:00007f0e38a499c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0e38a49a58 RCX: 000000000040fc01 RDX: 0000000000000000 RSI: 00007f0e38a49a00 RDI: 0000000000000014 RBP: 0000000000000014 R08: 000000000000000c R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000293 R12: 00007f0e38a49a40 R13: 0000000000000743 R14: 00000000006ffee8 R15: 0000000000000008 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 20751 Comm: syz-executor5 Not tainted 4.17.0-rc7+ #76 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+0x1b9/0x294 lib/dump_stack.c:113 netlink: 16 bytes leftover after parsing attributes in process `syz-executor7'. fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1522 netlink: 16 bytes leftover after parsing attributes in process `syz-executor7'. slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc_node mm/slab.c:3299 [inline] kmem_cache_alloc_node_trace+0x5a/0x770 mm/slab.c:3661 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3696 __kmalloc_reserve.isra.39+0x3a/0xe0 net/core/skbuff.c:137 pskb_expand_head+0x220/0x10c0 net/core/skbuff.c:1461 netlink_trim+0x2db/0x370 net/netlink/af_netlink.c:1292 netlink_unicast+0xc8/0x740 net/netlink/af_netlink.c:1326