linux-kernel - [PATCH] UBI: Fix invalidate

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>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1376944309-11342-1-git-send-email-richard@nod.at>
Date:	Mon, 19 Aug 2013 22:31:49 +0200
From:	Richard Weinberger <richard@....at>
To:	dedekind1@...il.com
Cc:	dwmw2@...radead.org, linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org, Richard Weinberger <richard@....at>
Subject: [PATCH] UBI: Fix invalidate_fastmap()

Onging tests uncovered that invalidate_fastmap() is broken.
It must not call ubi_wl_put_fm_peb() because all PEBs used
by the old fastmap have already been put back.

Signed-off-by: Richard Weinberger <richard@....at>
[rw: I did not Cc -stable because fastmap is an experimental feature.]
---
 drivers/mtd/ubi/fastmap.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index 1542751..f5aa4b0 100644
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -1343,7 +1343,7 @@ out:
 static int invalidate_fastmap(struct ubi_device *ubi,
 			      struct ubi_fastmap_layout *fm)
 {
-	int ret, i;
+	int ret;
 	struct ubi_vid_hdr *vh;
 
 	ret = erase_block(ubi, fm->e[0]->pnum);
@@ -1360,9 +1360,6 @@ static int invalidate_fastmap(struct ubi_device *ubi,
 	vh->sqnum = cpu_to_be64(ubi_next_sqnum(ubi));
 	ret = ubi_io_write_vid_hdr(ubi, fm->e[0]->pnum, vh);
 
-	for (i = 0; i < fm->used_blocks; i++)
-		ubi_wl_put_fm_peb(ubi, fm->e[i], i, fm->to_be_tortured[i]);
-
 	return ret;
 }
 
-- 
1.8.1.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/