diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2024-10-04 09:54:13 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-05 14:01:42 +0100 |
| commit | 2245bb1ba9c0023f1c8469b61c3eab849af71d6a (patch) | |
| tree | 7c7997eb7b2acd1aaa4e2538ed03f7a131107038 | |
| parent | 35be5018a2a4d1b07bdfcf957c81121d22d16355 (diff) | |
wifi: ath12k: fix one more memcpy size error
[ Upstream commit 19c23eb61fa4c802e6e0aaf74d6f7dcbe99f0ba3 ]
A previous patch addressed a fortified-memcpy warning on older compilers,
but there is still a warning on gcc-14 in some configurations:
In file included from include/linux/string.h:390,
from drivers/net/wireless/ath/ath12k/wow.c:7:
drivers/net/wireless/ath/ath12k/wow.c: In function 'ath12k_wow_convert_8023_to_80211.isra':
include/linux/fortify-string.h:114:33: error: '__builtin_memcpy' accessing 18446744073709551610 or more bytes at offsets 0 and 0 overlaps 9223372036854775797 bytes at offset -9223372036854775803 [-Werror=restrict]
include/linux/fortify-string.h:679:26: note: in expansion of macro '__fortify_memcpy_chk'
679 | #define memcpy(p, q, s) __fortify_memcpy_chk(p, q, s, \
| ^~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/ath/ath12k/wow.c:199:25: note: in expansion of macro 'memcpy'
199 | memcpy(pat + a3_ofs - pkt_ofs,
| ^~~~~~
Address this the same way as the other two, using size_add().
Fixes: b49991d83bba ("wifi: ath12k: fix build vs old compiler")
Fixes: 4a3c212eee0e ("wifi: ath12k: add basic WoW functionalities")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20241004095420.637091-1-arnd@kernel.org
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/wireless/ath/ath12k/wow.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath12k/wow.c b/drivers/net/wireless/ath/ath12k/wow.c index 9b8684abbe40..3624180b25b9 100644 --- a/drivers/net/wireless/ath/ath12k/wow.c +++ b/drivers/net/wireless/ath/ath12k/wow.c @@ -191,7 +191,7 @@ ath12k_wow_convert_8023_to_80211(struct ath12k *ar, memcpy(bytemask, eth_bytemask, eth_pat_len); pat_len = eth_pat_len; - } else if (eth_pkt_ofs + eth_pat_len < prot_ofs) { + } else if (size_add(eth_pkt_ofs, eth_pat_len) < prot_ofs) { memcpy(pat, eth_pat, ETH_ALEN - eth_pkt_ofs); memcpy(bytemask, eth_bytemask, ETH_ALEN - eth_pkt_ofs); |