QAT: Invalid ioctl ===================================== WARNING: bad unlock balance detected! tmpfs: No value for mount option 'bYXS[^\ҥ!j9Ԗ^m)D9@ !/KpGz]#aTi[yGJYVҰL/k!n9 GdA2$gIxWi^U$,2&o yyac`{8 SH>':6$PUS;Kr' 4.15.0-rc2-next-20171208+ #63 Not tainted ------------------------------------- syz-executor7/8283 is trying to release lock (mrt_lock) at: [<00000000ad620136>] ipmr_mfc_seq_stop+0xe1/0x130 net/ipv6/ip6mr.c:553 but there are no more locks to release! other info that might help us debug this: 1 lock held by syz-executor7/8283: #0: (&p->lock){+.+.}, at: [<00000000e858d4d1>] seq_read+0xd5/0x13d0 fs/seq_file.c:165 stack backtrace: CPU: 1 PID: 8283 Comm: syz-executor7 Not tainted 4.15.0-rc2-next-20171208+ #63 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+0x194/0x257 lib/dump_stack.c:53 print_unlock_imbalance_bug+0x12f/0x140 kernel/locking/lockdep.c:3561 __lock_release kernel/locking/lockdep.c:3775 [inline] lock_release+0x5f9/0xda0 kernel/locking/lockdep.c:4023 __raw_read_unlock include/linux/rwlock_api_smp.h:225 [inline] _raw_read_unlock+0x1a/0x30 kernel/locking/spinlock.c:255 ipmr_mfc_seq_stop+0xe1/0x130 net/ipv6/ip6mr.c:553 seq_read+0xc42/0x13d0 fs/seq_file.c:277 proc_reg_read+0xef/0x170 fs/proc/inode.c:217 do_loop_readv_writev fs/read_write.c:673 [inline] do_iter_read+0x3db/0x5b0 fs/read_write.c:897 vfs_readv+0x121/0x1c0 fs/read_write.c:959 do_preadv+0x11b/0x1a0 fs/read_write.c:1043 SYSC_preadv fs/read_write.c:1093 [inline] SyS_preadv+0x30/0x40 fs/read_write.c:1088 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452a39 RSP: 002b:00007f7cce553c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39 RDX: 0000000000000004 RSI: 0000000020f8b000 RDI: 0000000000000017 RBP: 000000000000045b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4928 R13: 00000000ffffffff R14: 00007f7cce5546d4 R15: 0000000000000000 BUG: sleeping function called from invalid context at lib/usercopy.c:25 in_atomic(): 1, irqs_disabled(): 0, pid: 8283, name: syz-executor7 INFO: lockdep is turned off. tmpfs: No value for mount option 'bYXS[^\ҥ!j9Ԗ^m)D9@ !/KpGz]#aTi[yGJYVҰL/k!n9 GdA2$gIxWi^U$,2&o yyac`{8 SH>':6$PUS;Kr' CPU: 1 PID: 8283 Comm: syz-executor7 Not tainted 4.15.0-rc2-next-20171208+ #63 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+0x194/0x257 lib/dump_stack.c:53 ___might_sleep+0x2b2/0x470 kernel/sched/core.c:6061 __might_sleep+0x95/0x190 kernel/sched/core.c:6014 __might_fault+0xab/0x1d0 mm/memory.c:4513 _copy_to_user+0x2c/0xc0 lib/usercopy.c:25 copy_to_user include/linux/uaccess.h:155 [inline] seq_read+0xcb4/0x13d0 fs/seq_file.c:279 proc_reg_read+0xef/0x170 fs/proc/inode.c:217 do_loop_readv_writev fs/read_write.c:673 [inline] do_iter_read+0x3db/0x5b0 fs/read_write.c:897 vfs_readv+0x121/0x1c0 fs/read_write.c:959 do_preadv+0x11b/0x1a0 fs/read_write.c:1043 SYSC_preadv fs/read_write.c:1093 [inline] SyS_preadv+0x30/0x40 fs/read_write.c:1088 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452a39 RSP: 002b:00007f7cce553c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39 RDX: 0000000000000004 RSI: 0000000020f8b000 RDI: 0000000000000017 RBP: 000000000000045b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4928 R13: 00000000ffffffff R14: 00007f7cce5546d4 R15: 0000000000000000 WARNING: CPU: 1 PID: 8283 at lib/usercopy.c:26 _copy_to_user+0xb5/0xc0 lib/usercopy.c:26