MIRRORS/linux-imx
1
0
Fork 0
mirror of https://github.com/nxp-imx/linux-imx.git synced 2025-07-07 18:05:21 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

powerpc/boot: Handle allocation failure in simple_realloc()

Browse Source 
[ Upstream commit 69b0194cce ]

simple_malloc() will return NULL when there is not enough memory left.
Check pointer 'new' before using it to copy the old data.

Signed-off-by: Li zeming <zeming@nfschina.com>
[mpe: Reword subject, use change log from Christophe]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20221219021816.3012-1-zeming@nfschina.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Li zeming 2022-12-19 10:18:16 +08:00 committed by Greg Kroah-Hartman
parent 881613a975
commit 9c96b5b056
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/powerpc/boot/simple_alloc.c
View File

@ -112,7 +112,9 @@ static void *simple_realloc(void *ptr, unsigned long size)
return ptr; return ptr;
new = simple_malloc(size); new = simple_malloc(size);
if (new)
memcpy(new, ptr, p->size); memcpy(new, ptr, p->size);
simple_free(ptr); simple_free(ptr);
return new; return new;
} }