OpenCloudOS-Kernel/net/bluetooth/cmtp
Wang Hai 2a7ca7459d Bluetooth: cmtp: fix possible panic when cmtp_init_sockets() fails
I got a kernel BUG report when doing fault injection test:

------------[ cut here ]------------
kernel BUG at lib/list_debug.c:45!
...
RIP: 0010:__list_del_entry_valid.cold+0x12/0x4d
...
Call Trace:
 proto_unregister+0x83/0x220
 cmtp_cleanup_sockets+0x37/0x40 [cmtp]
 cmtp_exit+0xe/0x1f [cmtp]
 do_syscall_64+0x35/0xb0
 entry_SYSCALL_64_after_hwframe+0x44/0xae

If cmtp_init_sockets() in cmtp_init() fails, cmtp_init() still returns
success. This will cause a kernel bug when accessing uncreated ctmp
related data when the module exits.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2021-10-25 15:02:04 +02:00
..
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
capi.c Bluetooth: cmtp: Use the correct print format 2021-06-26 07:12:40 +02:00
cmtp.h Bluetooth: increase BTNAMSIZ to 21 chars to fix potential buffer overflow 2021-08-05 15:05:37 +02:00
core.c Bluetooth: cmtp: fix possible panic when cmtp_init_sockets() fails 2021-10-25 15:02:04 +02:00
sock.c net: make ->{get,set}sockopt in proto_ops optional 2020-07-19 18:16:41 -07:00