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Fix undefined behavior with wrong function pointers called.

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Details here: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58006
runtime error: call to function (unknown) through pointer to incorrect function type 'void (*)(const unsigned char **, const int *, unsigned char **, const int *, int, int)'
This commit is contained in:
Vincent Rabaud 2023-07-20 15:29:34 +02:00
parent 1794cdc03c
commit 20784d3da2
1 changed files with 12 additions and 12 deletions
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24
modules/core/src/channels.cpp
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@ -53,25 +53,25 @@ static void mixChannels8u( const uchar** src, const int* sdelta,
mixChannels_(src, sdelta, dst, ddelta, len, npairs); mixChannels_(src, sdelta, dst, ddelta, len, npairs);
} }
static void mixChannels16u( const ushort** src, const int* sdelta, static void mixChannels16u( const uchar** src, const int* sdelta,
ushort** dst, const int* ddelta, uchar** dst, const int* ddelta,
int len, int npairs ) int len, int npairs )
{ {
mixChannels_(src, sdelta, dst, ddelta, len, npairs); mixChannels_((const ushort**)src, sdelta, (ushort**)dst, ddelta, len, npairs);
} }
static void mixChannels32s( const int** src, const int* sdelta, static void mixChannels32s( const uchar** src, const int* sdelta,
int** dst, const int* ddelta, uchar** dst, const int* ddelta,
int len, int npairs ) int len, int npairs )
{ {
mixChannels_(src, sdelta, dst, ddelta, len, npairs); mixChannels_((const int**)src, sdelta, (int**)dst, ddelta, len, npairs);
} }
static void mixChannels64s( const int64** src, const int* sdelta, static void mixChannels64s( const uchar** src, const int* sdelta,
int64** dst, const int* ddelta, uchar** dst, const int* ddelta,
int len, int npairs ) int len, int npairs )
{ {
mixChannels_(src, sdelta, dst, ddelta, len, npairs); mixChannels_((const int64**)src, sdelta, (int64**)dst, ddelta, len, npairs);
} }
typedef void (*MixChannelsFunc)( const uchar** src, const int* sdelta, typedef void (*MixChannelsFunc)( const uchar** src, const int* sdelta,
@ -81,9 +81,9 @@ static MixChannelsFunc getMixchFunc(int depth)
{ {
static MixChannelsFunc mixchTab[] = static MixChannelsFunc mixchTab[] =
{ {
(MixChannelsFunc)mixChannels8u, (MixChannelsFunc)mixChannels8u, (MixChannelsFunc)mixChannels16u, mixChannels8u, mixChannels8u, mixChannels16u,
(MixChannelsFunc)mixChannels16u, (MixChannelsFunc)mixChannels32s, (MixChannelsFunc)mixChannels32s, mixChannels16u, mixChannels32s, mixChannels32s,
(MixChannelsFunc)mixChannels64s, 0 mixChannels64s, 0
}; };
return mixchTab[depth]; return mixchTab[depth];