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PR3P192MB0894.EURP192.PROD.OUTLOOK.COM X-Authority-Analysis: v=2.4 cv=PO8COPqC c=1 sm=1 tr=0 ts=69b9397b cx=c_pps a=Ct3+nv1AAFb6OC/XyZwqoA==:117 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=8gLI3H-aZtYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=tr3XZvuDWTETL0Uaxejn:22 a=8ys4xmT3Mru1TjC2zVq1:22 a=N9GNhs4bAAAA:8 a=F4jRbKuxnH_zUiGVJR0A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=PZhj9NlD-CKO8hVp7yCs:22 X-Proofpoint-GUID: gI8kQGoXBkzbyOykJowcReK7e-NeVcup X-Proofpoint-ORIG-GUID: gI8kQGoXBkzbyOykJowcReK7e-NeVcup X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzE3MDEwMCBTYWx0ZWRfXw+AJKkIsDc7b tXT99v6rMFoUkAsddoEYI+bOAk3kOGxLlQbMs7oyOOSmg2UKt3VGTEt1cfkB6NOU3ICxtsPcnh6 /8qZlKFZ8fsXGo3gtEzv0UXkBZnFg8H2BVcoHqeTfiWuS+6r2oQglLp/4V7QGyxcoOdbj/mDPvZ +6xXWMcxrEKFyOMjwqjdJxTZ9dMyW/0IGHAMNc6RVj8cEmJlnmxEfWI6PYtPHDYAbax7cY/M18i 74E1wCsj8j96O5NQkNx0gOHlo0ZecbA2hwLT2iEfBh5W1EW9jiVgItCn0GRFV9YzC3rIWItTiQQ /+FT/j13Jp04xmNiufR8Ilf1uwjq9T9niWeJRItEBNrNHBSzA9ycs7TRaV2iWy8tPcys9YcZdWU V882IOg1VOIAuvDYCrG4lnQlaIESAZQAGnnyLX6Lfy3QkXm9ISAnQgVtrKmoVNbghSpCTrwfLiJ Ct1jd4lyw0cP5ERQrpQ== The ath12k_dp_get_mac_addr function performs a simple memcpy from a CPU-native data types into an u8 array. On a big-endian architecture, this later results in a null=E2=80=91pointer dereference. Convert the data to little=E2=80=91endian first, then copy it into the target array. Signed-off-by: Alexander Wilhelm --- drivers/net/wireless/ath/ath12k/dp.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath12k/dp.h b/drivers/net/wireless/at= h/ath12k/dp.h index f8cfc7bb29dd..50957915dbf4 100644 --- a/drivers/net/wireless/ath/ath12k/dp.h +++ b/drivers/net/wireless/ath/ath12k/dp.h @@ -647,8 +647,11 @@ int ath12k_dp_arch_rx_tid_delete_handler(struct ath12k= _dp *dp, =20 static inline void ath12k_dp_get_mac_addr(u32 addr_l32, u16 addr_h16, u8 *= addr) { - memcpy(addr, &addr_l32, 4); - memcpy(addr + 4, &addr_h16, ETH_ALEN - 4); + __le32 le_addr_l32 =3D cpu_to_le32(addr_l32); + __le16 le_addr_h16 =3D cpu_to_le16(addr_h16); + + memcpy(addr, &le_addr_l32, 4); + memcpy(addr + 4, &le_addr_h16, ETH_ALEN - 4); } =20 static inline struct ath12k_dp * --- base-commit: 702847e8cfd51856836a282db2073defd7cfd80c change-id: 20260317-fix-mac-addr-copy-on-big-endian-f1a4fea40184 Best regards, --=20 Alexander Wilhelm