fork/minimap2
1
0
Fork 0
mirror of https://github.com/lh3/minimap2.git synced 2026-09-15 13:07:55 +08:00
Code Issues Packages Projects Releases Wiki Activity

Avoid NULL pointer dereference (#1154)

Browse Source 
If the allocated region is 0 bytes then it's unsafe to dereference it.

Fixes #1147.
This commit is contained in:
blawrence-ont
2024-01-24 17:32:05 +00:00
committed by GitHub
parent fc2e1607d7
commit f3e59fc2a0
1 changed files with 1 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
index.c
View File

@@ -192,6 +192,7 @@ int32_t mm_idx_cal_max_occ(const mm_idx_t *mi, float f)
if (f <= 0.) return INT32_MAX;
for (i = 0; i < 1<<mi->b; ++i)
if (mi->B[i].h) n += kh_size((idxhash_t*)mi->B[i].h);
if (n == 0) return INT32_MAX;
a = (uint32_t*)malloc(n * 4);
for (i = n = 0; i < 1<<mi->b; ++i) {
idxhash_t *h = (idxhash_t*)mi->B[i].h;