> -----Original Message----- > From: Wang YanQing [mailto:udknight@xxxxxxxxx] > Sent: Thursday, May 03, 2018 7:18 PM > To: axboe@xxxxxxxxx > Cc: gregkh@xxxxxxxxxxxxxxxxxxx; pombredanne@xxxxxxxx; > tglx@xxxxxxxxxxxxx; Caizhiyong <caizhiyong@xxxxxxxxxxxxx>; linux- > block@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx > Subject: [PATCH] block: add verifier for cmdline partition > > I meet strange filesystem corruption issue recently, the reason > is there are overlaps partitions in cmdline partition argument. > > This patch add verifier for cmdline partition, then if there are > overlaps partitions, cmdline_partition will return error and log > a error message. > Partition overlap was intentionally designed in this cmdline partition. some time, the cmdline partition save raw data(not filesystem), the overlap makes data access very convenient. reference http://lists.infradead.org/pipermail/linux-mtd/2013-August/048092.html > Signed-off-by: Wang YanQing <udknight@xxxxxxxxx> > --- > block/partitions/cmdline.c | 63 > +++++++++++++++++++++++++++++++++++++++++++++- > 1 file changed, 62 insertions(+), 1 deletion(-) >
