Fedor Pchelkin bfb007aebe nfc: nci: free rx_data_reassembly skb on NCI device cleanup ... rx_data_reassembly skb is stored during NCI data exchange for processing fragmented packets. It is dropped only when the last fragment is processed or when an NTF packet with NCI_OP_RF_DEACTIVATE_NTF opcode is received. However, the NCI device may be deallocated before that which leads to skb leak. As by design the rx_data_reassembly skb is bound to the NCI device and nothing prevents the device to be freed before the skb is processed in some way and cleaned, free it on the NCI device cleanup. Found by Linux Verification Center (linuxtesting.org) with Syzkaller. Fixes: 6a2968aaf5 ("NFC: basic NCI protocol implementation") Cc: stable@vger.kernel.org Reported-by: syzbot+6b7c68d9c21e4ee4251b@syzkaller.appspotmail.com Closes: https://lore.kernel.org/lkml/000000000000f43987060043da7b@google.com/ Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru> Signed-off-by: David S. Miller <davem@davemloft.net>		2024-01-29 12:05:31 +00:00
..
hci	NFC: hci: Split memcpy() of struct hcp_message flexible array	2022-09-27 07:45:18 -07:00
nci	nfc: nci: free rx_data_reassembly skb on NCI device cleanup	2024-01-29 12:05:31 +00:00
af_nfc.c	nfc: fix error handling of nfc_proto_register()	2021-10-13 17:32:38 -07:00
core.c	net: nfc: Directly use ida_alloc()/free()	2022-05-28 15:28:47 +01:00
digital_core.c	net: fill in MODULE_DESCRIPTION()s for NFC	2024-01-11 16:16:08 -08:00
digital_dep.c	net:nfc:digital: Fix a double free in digital_tg_recv_dep_req	2021-04-27 15:36:10 -07:00
digital_technology.c	NFC: digital: fix possible memory leak in digital_in_send_sdd_req()	2021-10-13 17:44:29 -07:00
digital.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288	2019-06-05 17:36:37 +02:00
Kconfig	net: remove redundant 'depends on NET'	2021-01-27 17:04:12 -08:00
llcp_commands.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-06-27 09:45:22 -07:00
llcp_core.c	nfc: llcp_core: Hold a ref to llcp_local->dev when holding a ref to llcp_local	2023-12-25 07:29:04 +00:00
llcp_sock.c	nfc: Do not send datagram if socket state isn't LLCP_BOUND	2023-12-25 07:29:04 +00:00
llcp.h	net: nfc: Fix use-after-free caused by nfc_llcp_find_local	2023-06-26 10:57:23 +01:00
Makefile
netlink.c	genetlink: use attrs from struct genl_info	2023-08-15 15:00:45 -07:00
nfc.h	net: nfc: Fix use-after-free caused by nfc_llcp_find_local	2023-06-26 10:57:23 +01:00
rawsock.c	nfc: Add KCOV annotations	2022-11-02 11:58:13 +00:00