Sagi Grimberg c70f6e0ac9 nvme-tcp: fix possible data corruption with bio merges ... commit ca1ff67d0f upstream. When a bio merges, we can get a request that spans multiple bios, and the overall request payload size is the sum of all bios. When we calculate how much we need to send from the existing bio (and bvec), we did not take into account the iov_iter byte count cap. Since multipage bvecs support, bvecs can split in the middle which means that when we account for the last bvec send we should also take the iov_iter byte count cap as it might be lower than the last bvec size. Reported-by: Hao Wang <pkuwangh@gmail.com> Fixes: 3f2304f8c6 ("nvme-tcp: add NVMe over TCP host driver") Tested-by: Hao Wang <pkuwangh@gmail.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-01-19 18:26:17 +01:00
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Kconfig	nvme-tcp: fix kconfig dependency warning when !CRYPTO	2020-10-01 13:18:19 +02:00
Makefile	nvme-tcp: add NVMe over TCP host driver	2018-12-13 09:58:58 +01:00
core.c	nvme: introduce nvme_sync_io_queues	2020-11-18 19:20:24 +01:00
fabrics.c	nvme-fabrics: don't check state NVME_CTRL_NEW for request acceptance	2020-09-17 13:47:47 +02:00
fabrics.h	nvme: Remove ADMIN_ONLY state	2019-10-14 23:21:44 +09:00
fault_inject.c	nvme: enable to inject errors into admin commands	2019-06-21 11:15:50 +02:00
fc.c	nvme-fc: fail new connections to a deleted host or remote port	2020-10-07 08:01:27 +02:00
lightnvm.c	lightnvm: move metadata mapping to lower level driver	2019-08-06 08:20:10 -06:00
multipath.c	nvme-multipath: do not reset on unknown status	2020-10-01 13:17:49 +02:00
nvme.h	nvme: introduce nvme_sync_io_queues	2020-11-18 19:20:24 +01:00
pci.c	nvme-pci: mark Samsung PM1725a as IGNORE_DEV_SUBNQN	2021-01-19 18:26:15 +01:00
rdma.c	nvme-rdma: avoid repeated request completion	2020-11-18 19:20:24 +01:00
tcp.c	nvme-tcp: fix possible data corruption with bio merges	2021-01-19 18:26:17 +01:00
trace.c	nvme: trace: parse Get LBA Status command in detail	2019-08-29 12:55:01 -07:00
trace.h	nvme-trace: print result and status in hex format	2019-06-21 11:12:37 +02:00