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authorDJ Delorie <dj@delorie.com>2018-11-20 13:24:09 -0500
committerDJ Delorie <dj@delorie.com>2018-11-20 13:24:09 -0500
commitbcdaad21d4635931d1bd3b54a7894276925d081d (patch)
tree283d6b7b18006862bbac9ac711834b70dabd629f /malloc/dynarray_resize_clear.c
parent5770c0ad1e0c784e817464ca2cf9436a58c9beb7 (diff)
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malloc: tcache double free check
* malloc/malloc.c (tcache_entry): Add key field.
(tcache_put): Set it.
(tcache_get): Likewise.
(_int_free): Check for double free in tcache.
* malloc/tst-tcfree1.c: New.
* malloc/tst-tcfree2.c: New.
* malloc/Makefile: Run the new tests.
* manual/probes.texi: Document memory_tcache_double_free probe.

* dlfcn/dlerror.c (check_free): Prevent double frees.
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