korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-27 14:14:24 +08:00
Code Issues Packages Projects Releases Wiki Activity

mtd: partitions: redboot: Added conversion of operands to a larger type

Browse Source 
The value of an arithmetic expression directory * master->erasesize is
subject to overflow due to a failure to cast operands to a larger data
type before perfroming arithmetic

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Denis Arefev <arefev@swemel.ru>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20240315093758.20790-1-arefev@swemel.ru
This commit is contained in:
Denis Arefev 2024-03-15 12:37:58 +03:00 committed by Miquel Raynal
parent 26729dbb53
commit 1162bc2f8f
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/mtd/parsers/redboot.c
View File

@ -102,7 +102,7 @@ nogood:
offset -= master->erasesize; offset -= master->erasesize;
} }
} else { } else {
offset = directory * master->erasesize; offset = (unsigned long) directory * master->erasesize;
while (mtd_block_isbad(master, offset)) { while (mtd_block_isbad(master, offset)) {
offset += master->erasesize; offset += master->erasesize;
if (offset == master->size) if (offset == master->size)