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| author | Martin Sebor <msebor@gmail.com> | 2021-03-01 10:35:39 +0530 |
|---|---|---|
| committer | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2021-03-01 19:34:49 +0530 |
| commit | 764e9a0334350f52ab6953bef1db97f9b2e89ca5 (patch) | |
| tree | c23ec97333d00aa40e7eb680845d645981d1fc40 /version.h | |
| parent | 9fb07fd4e1d6cafecd1807b7a92405bad8e39530 (diff) | |
| download | glibc-764e9a0334350f52ab6953bef1db97f9b2e89ca5.tar.gz glibc-764e9a0334350f52ab6953bef1db97f9b2e89ca5.tar.xz glibc-764e9a0334350f52ab6953bef1db97f9b2e89ca5.zip | |
Correct buffer end pointer in IO_wdefault_doallocate (BZ #26874)
An experimental build of GCC 11 with an enhanced -Warray-bounds reports a bug in IO_wdefault_doallocate where the function forms an invalid past-the-end pointer to an allocated wchar_t buffer by failingf to consider the scaling by sizeof (wchar_t). The fix path below corrects this problem. It keeps the buffer size the same as opposed to increasing it according to what other code like it does. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
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