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| author | Dominic Chen <d.c.ddcc@gmail.com> | 2021-03-25 18:20:14 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2021-04-16 10:17:25 -0400 |
| commit | 95a540e176b3ebd57d6033fd23cf9fec8a5ddbe8 (patch) | |
| tree | 806cf2f44b88afa4eda056be40d134aa8149160a /src | |
| parent | 2c00f95c1ac7dd50f53d9e361847ebd2513c8da0 (diff) | |
| download | musl-95a540e176b3ebd57d6033fd23cf9fec8a5ddbe8.tar.gz musl-95a540e176b3ebd57d6033fd23cf9fec8a5ddbe8.tar.xz musl-95a540e176b3ebd57d6033fd23cf9fec8a5ddbe8.zip | |
mallocng/aligned_alloc: check for malloc failure
With mallocng, calling posix_memalign() or aligned_alloc() will SIGSEGV if the internal malloc() call returns NULL. This does not occur with oldmalloc, which explicitly checks for allocation failure.
Diffstat (limited to 'src')
| -rw-r--r-- | src/malloc/mallocng/aligned_alloc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/malloc/mallocng/aligned_alloc.c b/src/malloc/mallocng/aligned_alloc.c index 34116896..e0862a83 100644 --- a/src/malloc/mallocng/aligned_alloc.c +++ b/src/malloc/mallocng/aligned_alloc.c @@ -22,6 +22,9 @@ void *aligned_alloc(size_t align, size_t len) if (align <= UNIT) align = UNIT; unsigned char *p = malloc(len + align - UNIT); + if (!p) + return 0; + struct meta *g = get_meta(p); int idx = get_slot_index(p); size_t stride = get_stride(g); |