Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Fix null dereference and buffer overflow #536

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Fix null dereference and buffer overflow #536

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 9 additions & 1 deletion src/vector/stb/stb_image.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1930,7 +1930,7 @@ stbi_inline static int stbi__jpeg_huff_decode(stbi__jpeg *j, stbi__huffman *h)
}

// bias[n] = (-1<<n) + 1
static const int stbi__jbias[16] = {0,-1,-3,-7,-15,-31,-63,-127,-255,-511,-1023,-2047,-4095,-8191,-16383,-32767};
static const int stbi__jbias[17] = {0,-1,-3,-7,-15,-31,-63,-127,-255,-511,-1023,-2047,-4095,-8191,-16383,-32767,-65535};

// combined JPEG 'receive' and JPEG 'extend', since baseline
// always extends everything it receives.
Expand Down Expand Up @@ -3771,6 +3771,10 @@ static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int re
{
unsigned char* result;
stbi__jpeg* j = (stbi__jpeg*) stbi__malloc(sizeof(stbi__jpeg));
if (!j) {
stbi__errpuc("outofmem", "Out of memory");
return nullptr;
}
STBI_NOTUSED(ri);
j->s = s;
stbi__setup_jpeg(j);
Expand All @@ -3783,6 +3787,10 @@ static int stbi__jpeg_test(stbi__context *s)
{
int r;
stbi__jpeg* j = (stbi__jpeg*)stbi__malloc(sizeof(stbi__jpeg));
if (!j) {
stbi__errpuc("outofmem", "Out of memory");
return 0;
}
j->s = s;
stbi__setup_jpeg(j);
r = stbi__decode_jpeg_header(j, STBI__SCAN_type);
Expand Down