5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Michael Ellerman <mpe@xxxxxxxxxxxxxx> [ Upstream commit f2d5bccaca3e8c09c9b9c8485375f7bdbb2631d2 ] simple_realloc() frees the original buffer (ptr) even if the reallocation failed. Fix it to behave like standard realloc() and only free the original buffer if the reallocation succeeded. Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Link: https://msgid.link/20240229115149.749264-1-mpe@xxxxxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- arch/powerpc/boot/simple_alloc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/boot/simple_alloc.c b/arch/powerpc/boot/simple_alloc.c index 188c4f996512a..bc99f75b8582d 100644 --- a/arch/powerpc/boot/simple_alloc.c +++ b/arch/powerpc/boot/simple_alloc.c @@ -114,10 +114,11 @@ static void *simple_realloc(void *ptr, unsigned long size) return ptr; new = simple_malloc(size); - if (new) + if (new) { memcpy(new, ptr, p->size); + simple_free(ptr); + } - simple_free(ptr); return new; } -- 2.43.0
