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Filename Latest commit message Latest commit date
Sagi Grimberg c70f6e0ac9 nvme-tcp: fix possible data corruption with bio merges
commit ca1ff67d0fb14f39cf0cc5102b1fbcc3b14f6fb9 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
arch ARM: picoxcell: fix missing interrupt-parent properties 2021-01-19 18:26:16 +01:00
block bfq: Fix computation of shallow depth 2021-01-19 18:26:15 +01:00
certs
crypto crypto: asym_tpm: correct zero out potential secrets 2021-01-12 20:16:17 +01:00
Documentation x86/CPU/AMD: Save AMD NodeId as cpu_die_id 2020-12-30 11:51:47 +01:00
drivers nvme-tcp: fix possible data corruption with bio merges 2021-01-19 18:26:17 +01:00
fs btrfs: fix transaction leak and crash after RO remount caused by qgroup rescan 2021-01-19 18:26:14 +01:00
include ACPI: scan: add stub acpi_create_platform_device() for !CONFIG_ACPI 2021-01-19 18:26:16 +01:00
init exec: Transform exec_update_mutex into a rw_semaphore 2021-01-09 13:44:55 +01:00
ipc
kernel tracing/kprobes: Do the notrace functions check without kprobes on ftrace 2021-01-19 18:26:12 +01:00
lib lib/raid6: Let $(UNROLL) rules work with macOS userland 2021-01-19 18:26:15 +01:00
LICENSES
mm mm/hugetlb: fix potential missing huge page size info 2021-01-19 18:26:12 +01:00
net netfilter: ipset: fixes possible oops in mtype_resize 2021-01-19 18:26:14 +01:00
samples samples: bpf: Fix lwt_len_hist reusing previous BPF map 2020-12-30 11:51:12 +01:00
scripts depmod: handle the case of /sbin/depmod without /sbin in PATH 2021-01-12 20:16:10 +01:00
security dump_common_audit_data(): fix racy accesses to ->d_name 2021-01-19 18:26:16 +01:00
sound ASoC: Intel: fix error code cnl_set_dsp_D0() 2021-01-19 18:26:17 +01:00
tools perf intel-pt: Fix 'CPU too large' error 2021-01-19 18:26:16 +01:00
usr
virt kvm: check tlbs_dirty directly 2021-01-12 20:16:22 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile kbuild: enforce -Werror=return-type 2021-01-19 18:26:11 +01:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.