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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host	nvme-tcp: fix possible data corruption with bio merges	2021-01-19 18:26:17 +01:00
target	nvmet-rdma: Fix list_del corruption on queue establishment failure	2021-01-19 18:26:15 +01:00
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00