王贇 e842cb60e8 net: fix NULL pointer reference in cipso_v4_doi_free ... In netlbl_cipsov4_add_std() when 'doi_def->map.std' alloc failed, we sometime observe panic: BUG: kernel NULL pointer dereference, address: ... RIP: 0010:cipso_v4_doi_free+0x3a/0x80 ... Call Trace: netlbl_cipsov4_add_std+0xf4/0x8c0 netlbl_cipsov4_add+0x13f/0x1b0 genl_family_rcv_msg_doit.isra.15+0x132/0x170 genl_rcv_msg+0x125/0x240 This is because in cipso_v4_doi_free() there is no check on 'doi_def->map.std' when doi_def->type got value 1, which is possibe, since netlbl_cipsov4_add_std() haven't initialize it before alloc 'doi_def->map.std'. This patch just add the check to prevent panic happen in similar cases. Reported-by: Abaci <abaci@linux.alibaba.com> Signed-off-by: Michael Wang <yun.wang@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2021-08-30 12:23:18 +01:00
..
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile
netlabel_addrlist.c
netlabel_addrlist.h
netlabel_calipso.c	netlabel: remove unused parameter in netlbl_netlink_auditinfo()	2021-05-19 12:27:13 -07:00
netlabel_calipso.h
netlabel_cipso_v4.c	net: fix NULL pointer reference in cipso_v4_doi_free	2021-08-30 12:23:18 +01:00
netlabel_cipso_v4.h
netlabel_domainhash.c	netlabel: Fix spelling mistakes	2021-06-07 14:08:30 -07:00
netlabel_domainhash.h
netlabel_kapi.c	netlabel: Fix spelling mistakes	2021-06-07 14:08:30 -07:00
netlabel_mgmt.c	netlabel: Fix memory leak in netlbl_mgmt_add_common	2021-06-15 11:19:04 -07:00
netlabel_mgmt.h
netlabel_unlabeled.c	net: Remove redundant if statements	2021-08-05 13:27:50 +01:00
netlabel_unlabeled.h
netlabel_user.c
netlabel_user.h	netlabel: remove unused parameter in netlbl_netlink_auditinfo()	2021-05-19 12:27:13 -07:00