audit: type=1400 audit(1578312937.268:36): avc: denied { map } for pid=7155 comm="syz-executor972" path="/root/syz-executor972059612" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
ODEBUG: free active (active state 0) object type: timer_list hint: rfcomm_dlc_timeout+0x0/0x60 include/linux/compiler.h:210
------------[ cut here ]------------
WARNING: CPU: 0 PID: 7158 at lib/debugobjects.c:287 debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 7158 Comm: syz-executor972 Not tainted 4.14.162-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+0x142/0x197 lib/dump_stack.c:58
panic+0x1f9/0x42d kernel/panic.c:183
__warn.cold+0x2f/0x2f kernel/panic.c:547
report_bug+0x216/0x254 lib/bug.c:186
fixup_bug arch/x86/kernel/traps.c:177 [inline]
fixup_bug arch/x86/kernel/traps.c:172 [inline]
do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295
do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287
RSP: 0018:ffff888091e6faa8 EFLAGS: 00010086
RAX: 000000000000005e RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff86cc44e0 RDI: ffffed10123cdf4b
RBP: ffff888091e6fad0 R08: 000000000000005e R09: 0000000000000000
R10: 0000000000000000 R11: ffff88807b7b62c0 R12: ffffffff86cbf760
R13: ffffffff85ce2990 R14: 0000000000000000 R15: ffff8880a9f90068
__debug_check_no_obj_freed lib/debugobjects.c:747 [inline]
debug_check_no_obj_freed+0x3f5/0x7b7 lib/debugobjects.c:776
kfree+0xbd/0x270 mm/slab.c:3814
rfcomm_dlc_free+0x20/0x30 net/bluetooth/rfcomm/core.c:328
rfcomm_dlc_put include/net/bluetooth/rfcomm.h:258 [inline]
__rfcomm_create_dev net/bluetooth/rfcomm/tty.c:417 [inline]
rfcomm_create_dev net/bluetooth/rfcomm/tty.c:486 [inline]
rfcomm_dev_ioctl+0x1637/0x1920 net/bluetooth/rfcomm/tty.c:588
rfcomm_sock_ioctl+0x82/0xa0 net/bluetooth/rfcomm/sock.c:902
sock_do_ioctl+0x64/0xb0 net/socket.c:974
sock_ioctl+0x2a6/0x470 net/socket.c:1071
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4412b9
RSP: 002b:00007ffe37d4a9f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9
RDX: 0000000020000100 RSI: 00000000400452c8 RDI: 0000000000000004
RBP: 000000000000c366 R08: 00000000004002c8 R09: 00000000004002c8
R10: 00000000004002c8 R11: 0000000000000246 R12: 00000000004020e0
R13: 0000000000402170 R14: 0000000000000000 R15: 0000000000000000
======================================================