Pablo Neira Ayuso 9ad2f01863 netfilter: nfnetlink: nfnetlink_unicast() reports EAGAIN instead of ENOBUFS ...

[ Upstream commit ee92118355 ]

Frontend callback reports EAGAIN to nfnetlink to retry a command, this
is used to signal that module autoloading is required. Unfortunately,
nlmsg_unicast() reports EAGAIN in case the receiver socket buffer gets
full, so it enters a busy-loop.

This patch updates nfnetlink_unicast() to turn EAGAIN into ENOBUFS and
to use nlmsg_unicast(). Remove the flags field in nfnetlink_unicast()
since this is always MSG_DONTWAIT in the existing code which is exactly
what nlmsg_unicast() passes to netlink_unicast() as parameter.

Fixes: 96518518cc ("netfilter: add nftables")
Reported-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-09-09 19:04:26 +02:00

..

acpi

x86: ACPI: fix CPU hotplug deadlock

2020-04-23 10:30:20 +02:00

asm-generic

include/asm-generic/vmlinux.lds.h: align ro_after_init

2020-08-19 08:15:06 +02:00

clocksource

Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2018-04-05 21:21:08 -07:00

crypto

crypto: af_alg - fix use-after-free in af_alg_accept() due to bh_lock_sock()

2020-07-09 09:37:10 +02:00

drm

drm/panel: make drm_panel.h self-contained

2020-01-27 14:51:01 +01:00

dt-bindings

dt-bindings: reset: meson8b: fix duplicate reset IDs

2020-01-23 08:21:26 +01:00

keys

KEYS: Don't write out to userspace while holding key semaphore

2020-04-23 10:30:24 +02:00

kvm

KVM: arm/arm64: Sync ICH_VMCR_EL2 back when about to block

2019-08-25 10:47:59 +02:00

linux

netfilter: nfnetlink: nfnetlink_unicast() reports EAGAIN instead of ENOBUFS

2020-09-09 19:04:26 +02:00

math-emu

math-emu/soft-fp.h: (_FP_ROUND_ZERO) cast 0 to void to fix warning

2019-12-13 08:51:34 +01:00

media

media: v4l2-device.h: Explicitly compare grp{id,mask} to zero in v4l2_device macros

2020-02-24 08:34:41 +01:00

memory

…

misc

Revert "cxl: Allow a default context to be associated with an external pci_dev"

2018-07-02 23:54:33 +10:00

net

netfilter: nf_tables: fix destination register zeroing

2020-09-09 19:04:25 +02:00

pcmcia

pcmcia: remove long deprecated pcmcia_request_exclusive_irq() function

2018-08-18 12:30:42 -07:00

ras

PCI/AER: Add TLP header information to tracepoint

2018-05-10 08:34:52 -05:00

rdma

RDMA/core: Fix double destruction of uobject

2020-06-03 08:19:43 +02:00

scsi

scsi: Revert "target: iscsi: Wait for all commands to finish before freeing a session"

2020-02-28 16:38:58 +01:00

soc

soc/tegra: pmc: Fix pad voltage configuration for Tegra186

2019-11-20 18:45:24 +01:00

sound

ASoC: rt5670: Add new gpio1_is_ext_spk_en quirk and enable it on the Lenovo Miix 2 10

2020-07-29 10:16:58 +02:00

target

scsi: target: fix hang when multiple threads try to destroy the same iscsi session

2020-04-21 09:03:11 +02:00

trace

writeback: Fix sync livelock due to b_dirty_time processing

2020-09-03 11:24:28 +02:00

uapi

netfilter: nf_tables: incorrect enum nft_list_attributes definition

2020-09-09 19:04:25 +02:00

video

udlfb: introduce a rendering mutex

2019-05-25 18:23:30 +02:00

xen

xen/events: fix binding user event channels to cpus

2019-07-26 09:14:25 +02:00