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From: Szabolcs Nagy <nsz@sourceware.org> To: glibc-cvs@sourceware.org Subject: [glibc] elf/tlsdeschtab.h: Add the Malloc return value check in _dl_make_tlsdesc_dynamic() Date: Mon, 7 Nov 2022 13:30:17 +0000 (GMT) [thread overview] Message-ID: <20221107133032.DFAC03858401@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d1d0162e50afe7fa1e2fc4a901eb411db48acd7b commit d1d0162e50afe7fa1e2fc4a901eb411db48acd7b Author: Xiaoming Ni <nixiaoming@huawei.com> Date: Fri Nov 4 17:30:00 2022 +0800 elf/tlsdeschtab.h: Add the Malloc return value check in _dl_make_tlsdesc_dynamic() Check the return value of malloc based on the function header comment of _dl_make_tlsdesc_dynamic(). If the return value fails, NULL is returned. Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com> Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com> Diff: --- elf/tlsdeschtab.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/elf/tlsdeschtab.h b/elf/tlsdeschtab.h index 8c02e45a49..82733159e3 100644 --- a/elf/tlsdeschtab.h +++ b/elf/tlsdeschtab.h @@ -110,6 +110,8 @@ _dl_make_tlsdesc_dynamic (struct link_map *map, size_t ti_offset) } *entry = td = malloc (sizeof (struct tlsdesc_dynamic_arg)); + if (! td) + return 0; /* This may be higher than the map's generation, but it doesn't matter much. Worst case, we'll have one extra DTV update per thread. */
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