linux/net/nfc
Kees Cook de4feb4e3d NFC: hci: Split memcpy() of struct hcp_message flexible array
To work around a misbehavior of the compiler's ability to see into
composite flexible array structs (as detailed in the coming memcpy()
hardening series[1]), split the memcpy() of the header and the payload
so no false positive run-time overflow warning will be generated. This
split already existed for the "firstfrag" case, so just generalize the
logic further.

[1] https://lore.kernel.org/linux-hardening/20220901065914.1417829-2-keescook@chromium.org/

Cc: Eric Dumazet <edumazet@google.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Reported-by: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220924040835.3364912-1-keescook@chromium.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-27 07:45:18 -07:00
..
hci NFC: hci: Split memcpy() of struct hcp_message flexible array 2022-09-27 07:45:18 -07:00
nci NFC: nci: fix sleep in atomic context bugs caused by nci_skb_alloc 2022-05-17 17:55:53 -07:00
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 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
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 nfc: drop unneeded debug prints 2021-10-11 17:00:51 -07:00
llcp_core.c nfc: llcp: Revert "NFC: Keep socket alive until the DISC PDU is actually sent" 2022-03-03 10:43:37 +00:00
llcp_sock.c net: remove noblock parameter from skb_recv_datagram() 2022-04-06 13:45:26 +01:00
llcp.h nfc: llcp: Revert "NFC: Keep socket alive until the DISC PDU is actually sent" 2022-03-03 10:43:37 +00:00
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 genetlink: start to validate reserved header bytes 2022-08-29 12:47:15 +01:00
nfc.h nfc: constify several pointers to u8, char and sk_buff 2021-07-30 17:22:52 +02:00
rawsock.c net: remove noblock parameter from skb_recv_datagram() 2022-04-06 13:45:26 +01:00