Merge pull request #25780 from asmorkalov:as/gapi_arm_overflow

asmorkalov · web-flow · commit d1b643a05a70 · 2024-06-19T08:13:34.000+03:00
Fixed input buffer read overflow in vectorized G-API convertTo implementation
diff --git a/modules/gapi/src/backends/fluid/gfluidcore_func.simd.hpp b/modules/gapi/src/backends/fluid/gfluidcore_func.simd.hpp
@@ -2915,7 +2915,7 @@ CV_ALWAYS_INLINE
 typename std::enable_if<DST_SHORT_OR_USHORT, void>::type
 convertto_simd_nocoeff_impl(const uchar* inx, DST* outx)
 {
-    v_uint8 a = vx_load(inx);
+    v_uint8 a = vx_load_low(inx);
     v_uint16 res = v_expand_low(a);
 
     store_i16(outx, res);

Original file line number	Diff line number	Diff line change
`@@ -2915,7 +2915,7 @@ CV_ALWAYS_INLINE`
`2915`	`2915`	`typename std::enable_if<DST_SHORT_OR_USHORT, void>::type`
`2916`	`2916`	`convertto_simd_nocoeff_impl(const uchar* inx, DST* outx)`
`2917`	`2917`	`{`
`2918`		`- v_uint8 a = vx_load(inx);`
	`2918`	`+ v_uint8 a = vx_load_low(inx);`
`2919`	`2919`	`v_uint16 res = v_expand_low(a);`
`2920`	`2920`
`2921`	`2921`	`store_i16(outx, res);`