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Brennan Xavier McManus f678c3c336 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: 0e0ff638400be8f497a35b51a4751fd823f6bd6a ("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 11:11:19 +02:00
..
.gitignore
tools/nolibc: Add gitignore to avoid git complaints about sysroot
2023-03-20 08:45:21 -07:00
arch-aarch64.h
tools/nolibc: aarch64: shrink _start with _start_c
2023-08-23 04:40:22 +02:00
arch-arm.h
tools/nolibc: arm: shrink _start with _start_c
2023-08-23 04:40:22 +02:00
arch-i386.h
tools/nolibc: i386: Fix a stack misalign bug on _start
2023-10-12 21:10:37 +02:00
arch-loongarch.h
tools/nolibc: loongarch: shrink _start with _start_c
2023-08-23 04:40:22 +02:00
arch-mips.h
tools/nolibc: mips: shrink _start with _start_c
2023-08-23 04:40:22 +02:00
arch-powerpc.h
tools/nolibc: silence ppc64 compile warnings
2023-08-23 05:17:07 +02:00
arch-riscv.h
tools/nolibc: riscv: shrink _start with _start_c
2023-08-23 04:40:22 +02:00
arch-s390.h
tools/nolibc: s390: shrink _start with _start_c
2023-08-23 04:40:22 +02:00
arch-x86_64.h
tools/nolibc: x86_64: shrink _start with _start_c
2023-08-23 04:40:22 +02:00
arch.h
tools/nolibc: add support for powerpc
2023-08-23 05:17:07 +02:00
compiler.h
tools/nolibc: fix segfaults on compilers without attribute no_stack_protector
2023-06-09 11:46:08 -07:00
crt.h
tools/nolibc: mark start_c as weak
2023-10-12 21:13:51 +02:00
ctype.h
tools/nolibc: fix missing includes causing build issues at -O0
2023-01-09 09:36:05 -08:00
errno.h
tools/nolibc: make errno a weak symbol instead of a static one
2023-01-10 13:33:55 -08:00
Makefile
tools/nolibc: add new crt.h with _start_c
2023-08-23 04:40:22 +02:00
nolibc.h
tools/nolibc: add missing my_syscall6() for mips
2023-08-23 04:38:02 +02:00
signal.h
tools/nolibc: fix missing includes causing build issues at -O0
2023-01-09 09:36:05 -08:00
stackprotector.h
tools/nolibc: stackprotector.h: make __stack_chk_init static
2023-08-23 05:17:07 +02:00
std.h
tools/nolibc: add stdint.h
2023-03-20 08:45:21 -07:00
stdint.h
tools/nolibc: stdint: use __SIZE_TYPE__ for size_t
2023-08-23 05:17:07 +02:00
stdio.h
tools/nolibc: setvbuf: avoid unused parameter warnings
2023-08-23 05:17:07 +02:00
stdlib.h
tools/nolibc/stdlib: fix memory error in realloc()
2024-06-12 11:11:19 +02:00
string.h
tools/nolibc: use standard __asm__ statements
2023-06-09 11:46:07 -07:00
sys.h
tools/nolibc: keep brk(), sbrk(), mmap() away from __sysret()
2023-08-23 05:19:22 +02:00
time.h
tools/nolibc: fix missing includes causing build issues at -O0
2023-01-09 09:36:05 -08:00
types.h
tools/nolibc: remove the old sys_stat support
2023-08-23 04:40:22 +02:00
unistd.h
tools/nolibc: unistd.h: reorder the syscall macros
2023-08-06 12:27:53 +02:00