Lv Yunlong 3bce718d97 net:nfc:digital: Fix a double free in digital_tg_recv_dep_req ...

[ Upstream commit 7525858679 ]

In digital_tg_recv_dep_req, it calls nfc_tm_data_received(..,resp).
If nfc_tm_data_received() failed, the callee will free the resp via
kfree_skb() and return error. But in the exit branch, the resp
will be freed again.

My patch sets resp to NULL if nfc_tm_data_received() failed, to
avoid the double free.

Fixes: 1c7a4c24fb ("NFC Digital: Add target NFC-DEP support")
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2021-05-14 09:50:44 +02:00

..

hci

treewide: replace '---help---' in Kconfig files with 'help'

2020-06-14 01:57:21 +09:00

nci

tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer

2021-03-04 11:37:36 +01:00

af_nfc.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13

2019-05-21 11:28:45 +02:00

core.c

net: nfc: kerneldoc fixes

2020-07-13 17:20:40 -07:00

digital_core.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288

2019-06-05 17:36:37 +02:00

digital_dep.c

net:nfc:digital: Fix a double free in digital_tg_recv_dep_req

2021-05-14 09:50:44 +02:00

digital_technology.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288

2019-06-05 17:36:37 +02:00

digital.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288

2019-06-05 17:36:37 +02:00

Kconfig

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21 10:50:46 +02:00

llcp_commands.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13

2019-05-21 11:28:45 +02:00

llcp_core.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13

2019-05-21 11:28:45 +02:00

llcp_sock.c

net/nfc: fix use-after-free llcp_sock_bind/connect

2021-05-14 09:49:55 +02:00

llcp.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13

2019-05-21 11:28:45 +02:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

netlink.c

NFC: fix possible resource leak

2021-02-03 23:28:51 +01:00

nfc.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13

2019-05-21 11:28:45 +02:00

rawsock.c

NFC: fix resource leak when target index is invalid

2021-02-03 23:28:51 +01:00