WSL2-Linux-Kernel/net/nfc
Kees Cook 908b2da426 NFC: nci: Bounds check struct nfc_target arrays
[ Upstream commit e329e71013 ]

While running under CONFIG_FORTIFY_SOURCE=y, syzkaller reported:

  memcpy: detected field-spanning write (size 129) of single field "target->sensf_res" at net/nfc/nci/ntf.c:260 (size 18)

This appears to be a legitimate lack of bounds checking in
nci_add_new_protocol(). Add the missing checks.

Reported-by: syzbot+210e196cef4711b65139@syzkaller.appspotmail.com
Link: https://lore.kernel.org/lkml/0000000000001c590f05ee7b3ff4@google.com
Fixes: 019c4fbaa7 ("NFC: Add NCI multiple targets support")
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221202214410.never.693-kees@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-12-14 11:37:27 +01:00
..
hci nfc: constify local pointer variables 2021-07-30 17:22:52 +02:00
nci NFC: nci: Bounds check struct nfc_target arrays 2022-12-14 11:37:27 +01:00
Kconfig net: remove redundant 'depends on NET' 2021-01-27 17:04:12 -08:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
af_nfc.c nfc: fix error handling of nfc_proto_register() 2021-10-13 17:32:38 -07:00
core.c NFC: NULL out the dev->rfkill to prevent UAF 2022-06-09 10:22:46 +02:00
digital.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
digital_core.c NFC: digital: fix possible memory leak in digital_tg_listen_mdaa() 2021-10-13 17:44:29 -07:00
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
llcp.h nfc: constify several pointers to u8, char and sk_buff 2021-07-30 17:22:52 +02:00
llcp_commands.c nfc: constify several pointers to u8, char and sk_buff 2021-07-30 17:22:52 +02:00
llcp_core.c nfc: constify several pointers to u8, char and sk_buff 2021-07-30 17:22:52 +02:00
llcp_sock.c nfc: llcp: fix NULL error pointer dereference on sendmsg() after failed bind() 2022-01-27 11:02:48 +01:00
netlink.c NFC: netlink: fix sleep in atomic bug when firmware download timeout 2022-05-12 12:30:10 +02:00
nfc.h nfc: constify several pointers to u8, char and sk_buff 2021-07-30 17:22:52 +02:00
rawsock.c net: in_irq() cleanup 2021-08-13 14:09:19 -07:00