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ubi: Fix out of bounds write in volume update code
authorRichard Weinberger <richard@nod.at>
Sun, 21 Feb 2016 09:53:03 +0000 (10:53 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 9 Mar 2016 23:33:27 +0000 (15:33 -0800)
commit41b147fa3fab394f5e7777ad4b48486386aa7b3c
treeac2fe8b4db59fc8afbada2f92bf157027cbe7541tree
parentb742d1030d83125310c663c6fbf8f021cccd2868commit | diff
ubi: Fix out of bounds write in volume update code

commit e4f6daac20332448529b11f09388f1d55ef2084c upstream.

ubi_start_leb_change() allocates too few bytes.
ubi_more_leb_change_data() will write up to req->upd_bytes +
ubi->min_io_size bytes.

Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/mtd/ubi/upd.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git