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Jakub Kicinski 922309e50b sock: redo the psock vs ULP protection check 
[ Upstream commit e34a07c0ae ]

Commit 8a59f9d1e3 ("sock: Introduce sk->sk_prot->psock_update_sk_prot()")
has moved the inet_csk_has_ulp(sk) check from sk_psock_init() to
the new tcp_bpf_update_proto() function. I'm guessing that this
was done to allow creating psocks for non-inet sockets.

Unfortunately the destruction path for psock includes the ULP
unwind, so we need to fail the sk_psock_init() itself.
Otherwise if ULP is already present we'll notice that later,
and call tcp_update_ulp() with the sk_proto of the ULP
itself, which will most likely result in the ULP looping
its callbacks.

Fixes: 8a59f9d1e3 ("sock: Introduce sk->sk_prot->psock_update_sk_prot()")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Tested-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/r/20220620191353.1184629-2-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-06-29 09:04:35 +02:00
arch MIPS: Remove repetitive increase irq_err_count 2022-06-29 09:04:33 +02:00
block block: pop cached rq before potentially blocking rq_qos_throttle() 2022-06-29 09:04:33 +02:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:28:03 +02:00
crypto crypto: memneq - move into lib/ 2022-06-22 14:28:06 +02:00
Documentation dt-bindings: nvmem: sfp: Add clock properties 2022-06-25 15:29:47 +02:00
drivers virtio_net: fix xdp_rxq_info bug after suspend/resume 2022-06-29 09:04:34 +02:00
fs io_uring: fail links when poll fails 2022-06-29 09:04:34 +02:00
include sock: redo the psock vs ULP protection check 2022-06-29 09:04:35 +02:00
init gcc-12: disable '-Warray-bounds' universally for now 2022-06-22 14:27:55 +02:00
ipc ipc/mqueue: use get_tree_nodev() in mqueue_get_tree() 2022-06-09 10:30:30 +02:00
kernel rethook: Reject getting a rethook if RCU is not watching 2022-06-29 09:04:30 +02:00
lib crypto: memneq - move into lib/ 2022-06-22 14:28:06 +02:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm mm/slub: add missing TID updates on slab deactivation 2022-06-29 09:04:27 +02:00
net sock: redo the psock vs ULP protection check 2022-06-29 09:04:35 +02:00
samples samples/landlock: Format with clang-format 2022-06-09 10:30:46 +02:00
scripts faddr2line: Fix overlapping text section failures, the sequel 2022-06-22 14:28:03 +02:00
security selinux: free contexts previously transferred in selinux_add_opt() 2022-06-22 14:28:10 +02:00
sound ALSA: hda/realtek: Add quirk for Clevo NS50PU 2022-06-29 09:04:25 +02:00
tools selftests: netfilter: correct PKTGEN_SCRIPT_PATHS in nft_concat_range.sh 2022-06-29 09:04:32 +02:00
usr Kbuild updates for v5.18 2022-03-31 11:59:03 -07:00
virt KVM: Free new dirty bitmap if creating a new memslot fails 2022-05-20 13:02:05 -04:00
.clang-format genirq/msi: Make interrupt allocation less convoluted 2021-12-16 22:22:20 +01:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap hotfixes for 5.18-rc7 2022-05-13 10:22:37 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: replace a Microchip AT91 maintainer 2022-02-09 11:30:01 +01:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS MAINTAINERS: Add new IOMMU development mailing list 2022-06-29 09:04:27 +02:00
Makefile Linux 5.18.7 2022-06-25 15:29:48 +02:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.