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Jan Beulich 76fac2a852 xen-netback: respect gnttab_map_refs()'s return value
commit 2991397d23ec597405b116d96de3813420bdcbc3 upstream.

Commit 3194a1746e8a ("xen-netback: don't "handle" error by BUG()")
dropped respective a BUG_ON() without noticing that with this the
variable's value wouldn't be consumed anymore. With gnttab_set_map_op()
setting all status fields to a non-zero value, in case of an error no
slot should have a status of GNTST_okay (zero).

This is part of XSA-367.

Cc: <stable@vger.kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/d933f495-619a-0086-5fb4-1ec3cf81a8fc@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-12 12:52:50 +08:00
Documentation sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output 2021-04-12 12:52:49 +08:00
LICENSES Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
arch Xen/gnttab: handle p2m update errors on a per-slot basis 2021-04-12 12:52:49 +08:00
block blk-settings: align max_sectors on "logical_block_size" boundary 2021-04-12 12:52:32 +08:00
certs certs: Fix blacklist flag type confusion 2021-04-12 12:52:25 +08:00
crypto crypto: tcrypt - avoid signed overflow in byte count 2021-04-12 12:52:47 +08:00
drivers xen-netback: respect gnttab_map_refs()'s return value 2021-04-12 12:52:50 +08:00
fs sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output 2021-04-12 12:52:49 +08:00
include sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output 2021-04-12 12:52:49 +08:00
init fgraph: Initialize tracing_graph_pause at task creation 2021-04-12 12:51:55 +08:00
ipc ipc/util.c: sysvipc_find_ipc() incorrectly updates position index 2021-03-16 16:27:51 +08:00
kernel sched/features: Fix hrtick reprogramming 2021-04-12 12:52:49 +08:00
lib udp: fix skb_copy_and_csum_datagram with odd segment sizes 2021-04-12 12:52:05 +08:00
mm mm/hugetlb.c: fix unnecessary address expansion of pmd sharing 2021-04-12 12:52:44 +08:00
net Bluetooth: Fix null pointer dereference in amp_read_loc_assoc_final_data 2021-04-12 12:52:46 +08:00
package generate-rpms: modify the name of the kernel tag for x86 and arm64 2021-04-07 06:53:59 +00:00
samples samples: bpf: Fix lwt_len_hist reusing previous BPF map 2021-03-16 16:42:53 +08:00
scripts scripts/recordmcount.pl: support big endian for ARCH sh 2021-04-12 12:52:10 +08:00
security smackfs: restrict bytes count in smackfs write functions 2021-04-12 12:52:44 +08:00
sound ASoC: Intel: bytcr_rt5640: Add quirk for the Acer One S1002 tablet 2021-04-12 12:52:49 +08:00
tools perf test: Fix unaligned access in sample parsing test 2021-04-12 12:52:29 +08:00
usr Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
virt KVM: Use kvm_pfn_t for local PFN variable in hva_to_pfn_remapped() 2021-04-12 12:52:09 +08:00
.clang-format Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.cocciconfig Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.get_maintainer.ignore Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.gitattributes Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.gitignore Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
COPYING Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
CREDITS Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Kbuild Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Kconfig Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
MAINTAINERS Documentation/llvm: add documentation on building w/ Clang/LLVM 2021-03-16 16:34:24 +08:00
Makefile x86/build: Disable CET instrumentation in the kernel 2021-04-12 12:51:57 +08:00
README Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
README.md Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
backport_remove_lists.txt Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
tools_key.pub Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00

README.md

Tencent Linux Kernel 4.0