Brennan Xavier McManus 5996b2b2da tools/nolibc/stdlib: fix memory error in realloc() ...

commit 791f4641142e2aced85de082e5783b4fb0b977c2 upstream.

Pass user_p_len to memcpy() instead of heap->len to prevent realloc()
from copying an extra sizeof(heap) bytes from beyond the allocated
region.

Signed-off-by: Brennan Xavier McManus <bxmcmanus@gmail.com>
Cc: stable@vger.kernel.org
Reviewed-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Fixes: 0e0ff63840 ("tools/nolibc/stdlib: Implement `malloc()`, `calloc()`, `realloc()` and `free()`")
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2024-06-12 11:02:56 +02:00

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arch-aarch64.h

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arch-arm.h

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arch-i386.h

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arch-mips.h

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arch-riscv.h

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arch-x86_64.h

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arch.h

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ctype.h

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errno.h

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Makefile

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nolibc.h

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signal.h

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std.h

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stdio.h

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stdlib.h

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string.h

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sys.h

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time.h

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types.h

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unistd.h

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