On Tue, Apr 02, 2024 at 02:19:55PM +0530, Ashwin Dayanand Kamat wrote: > From: Min Li <min15.li@xxxxxxxxxxx> > > [ Upstream commit 6f64f866aa1ae6975c95d805ed51d7e9433a0016] > > Before calling add partition or resize partition, there is no check > on whether the length is aligned with the logical block size. > If the logical block size of the disk is larger than 512 bytes, > then the partition size maybe not the multiple of the logical block size, > and when the last sector is read, bio_truncate() will adjust the bio size, > resulting in an IO error if the size of the read command is smaller than > the logical block size.If integrity data is supported, this will also > result in a null pointer dereference when calling bio_integrity_free. > > Cc: <stable@xxxxxxxxxxxxxxx> > Signed-off-by: Min Li <min15.li@xxxxxxxxxxx> > Reviewed-by: Damien Le Moal <dlemoal@xxxxxxxxxx> > Reviewed-by: Chaitanya Kulkarni <kch@xxxxxxxxxx> > Reviewed-by: Christoph Hellwig <hch@xxxxxx> > Link: https://lore.kernel.org/r/20230629142517.121241-1-min15.li@xxxxxxxxxxx > Signed-off-by: Jens Axboe <axboe@xxxxxxxxx> > Signed-off-by: Ashwin Dayanand Kamat <ashwin.kamat@xxxxxxxxxxxx> > --- > block/ioctl.c | 11 +++++++---- > 1 file changed, 7 insertions(+), 4 deletions(-) Now queued up,t hanks., greg k-h
