slab_pre_alloc_hook mm/slab.h:421 [inline]
 slab_alloc mm/slab.c:3376 [inline]
 kmem_cache_alloc_trace+0x29a/0x3d0 mm/slab.c:3616
 kmalloc include/linux/slab.h:488 [inline]
 proc_reg_open+0x6d/0x3e0 fs/proc/inode.c:340
 do_dentry_open+0x44b/0xec0 fs/open.c:777
 vfs_open+0x105/0x220 fs/open.c:888
 do_last fs/namei.c:3428 [inline]
 path_openat+0x628/0x2970 fs/namei.c:3569
general protection fault: 0000 [#1] PREEMPT SMP KASAN
 do_filp_open+0x179/0x3c0 fs/namei.c:3603
Modules linked in:
CPU: 1 PID: 9486 Comm: kworker/u4:7 Not tainted 4.14.204-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 do_sys_open+0x296/0x410 fs/open.c:1081
Workqueue: events_unbound flush_to_ldisc
task: ffff88809f002240 task.stack: ffff888056540000
RIP: 0010:skb_tail_pointer include/linux/skbuff.h:2029 [inline]
RIP: 0010:skb_put+0x29/0x170 net/core/skbuff.c:1694
RSP: 0018:ffff888056547b90 EFLAGS: 00010202
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45deb9
RAX: dffffc0000000000 RBX: 0000000000000003 RCX: 1ffffffff1073d9d
RSP: 002b:00007ff9e582bc78 EFLAGS: 00000246
RDX: 000000000000001a RSI: 0000000000000003 RDI: 00000000000000d0
 ORIG_RAX: 0000000000000055
RBP: 0000000000000000 R08: ffffffff8b9c4fb0 R09: 0000000000050959
RAX: ffffffffffffffda RBX: 0000000000002a00 RCX: 000000000045deb9
R10: ffff88809f002b68 R11: ffff88809f002240 R12: 0000000000000003
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040
R13: dffffc0000000000 R14: ffff88809b23b1c0 R15: ffff8880ac6d5b60
RBP: 00007ff9e582bca0 R08: 0000000000000000 R09: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
R13: 00007ffc1358299f R14: 00007ff9e582c9c0 R15: 000000000118bf2c
CR2: 00007ffc23e53000 CR3: 00000000593fa000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skb_put_data include/linux/skbuff.h:2109 [inline]
 ll_recv+0x6e9/0x1820 drivers/bluetooth/hci_ll.c:416
 hci_uart_tty_receive+0x1ec/0x4c0 drivers/bluetooth/hci_ldisc.c:617
 tty_ldisc_receive_buf+0x12e/0x170 drivers/tty/tty_buffer.c:459
 tty_port_default_receive_buf+0x6e/0xa0 drivers/tty/tty_port.c:37
 receive_buf drivers/tty/tty_buffer.c:475 [inline]
 flush_to_ldisc+0x1dd/0x3f0 drivers/tty/tty_buffer.c:527
 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116
 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: 00 00 41 55 41 54 41 89 f4 55 48 89 fd 53 e8 7f b3 7d fb 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 24 01 00 00 48 8d bd c8 00 00 00 4c 8b ad d0 
RIP: skb_tail_pointer include/linux/skbuff.h:2029 [inline] RSP: ffff888056547b90
RIP: skb_put+0x29/0x170 net/core/skbuff.c:1694 RSP: ffff888056547b90
CPU: 1 PID: 15177 Comm: syz-executor.3 Tainted: G      D         4.14.204-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+0x1b2/0x283 lib/dump_stack.c:58
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10a/0x154 lib/fault-inject.c:149
 should_failslab+0xd6/0x130 mm/failslab.c:32
 slab_pre_alloc_hook mm/slab.h:421 [inline]
 slab_alloc_node mm/slab.c:3297 [inline]
 kmem_cache_alloc_node+0x54/0x410 mm/slab.c:3640
 __alloc_skb+0x5c/0x510 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:980 [inline]
 bt_skb_alloc include/net/bluetooth/bluetooth.h:336 [inline]
 ll_recv+0x590/0x1820 drivers/bluetooth/hci_ll.c:516
 hci_uart_tty_receive+0x1ec/0x4c0 drivers/bluetooth/hci_ldisc.c:617
 tiocsti drivers/tty/tty_io.c:2186 [inline]
 tty_ioctl+0xe5a/0x13c0 drivers/tty/tty_io.c:2572
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45deb9
RSP: 002b:00007f32b2986c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000019c80 RCX: 000000000045deb9
RDX: 0000000020000140 RSI: 0000000000005412 RDI: 0000000000000003
RBP: 00007f32b2986ca0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd5157147f R14: 00007f32b29879c0 R15: 000000000118bf2c
Bluetooth: Can't allocate mem for new packet
---[ end trace 403dca7213a6f991 ]---