linux-kernel - [PATCH] drivers: mtd: Fixed breaking list in __mtd_del

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20211026084607.3473482-1-andreas.oetken@siemens-energy.com>
Date:   Tue, 26 Oct 2021 10:46:07 +0200
From:   Andreas Oetken <ennoerlangen@...il.com>
To:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Andreas Oetken <andreas.oetken@...mens-energy.com>
Subject: [PATCH] drivers: mtd: Fixed breaking list in __mtd_del_partition.

Not the child partition should be removed from the partition list
but the partition itself. Otherwise the partition list gets broken
and any subsequent remove operations leads to a kernel panic.

Signed-off-by: Andreas Oetken <andreas.oetken@...mens-energy.com>
---
 drivers/mtd/mtdpart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 95d47422bbf20..5725818fa199f 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -313,7 +313,7 @@ static int __mtd_del_partition(struct mtd_info *mtd)
 	if (err)
 		return err;
 
-	list_del(&child->part.node);
+	list_del(&mtd->part.node);
 	free_partition(mtd);
 
 	return 0;
-- 
2.30.2