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Kuniyuki Iwashima 4aa05df226 tcp: Fix bind() conflict check for dual-stack wildcard address. [ Upstream commit `d9ba993428` ] Paul Holzinger reported [0] that commit `5456262d2b` ("net: Fix incorrect address comparison when searching for a bind2 bucket") introduced a bind() regression. Paul also gave a nice repro that calls two types of bind() on the same port, both of which now succeed, but the second call should fail: bind(fd1, ::, port) + bind(fd2, 127.0.0.1, port) The cited commit added address family tests in three functions to fix the uninit-value KMSAN report. [1] However, the test added to inet_bind2_bucket_match_addr_any() removed a necessary conflict check; the dual-stack wildcard address no longer conflicts with an IPv4 non-wildcard address. If tb->family is AF_INET6 and sk->sk_family is AF_INET in inet_bind2_bucket_match_addr_any(), we still need to check if tb has the dual-stack wildcard address. Note that the IPv4 wildcard address does not conflict with IPv6 non-wildcard addresses. [0]: https://lore.kernel.org/netdev/e21bf153-80b0-9ec0-15ba-e04a4ad42c34@redhat.com/ [1]: https://lore.kernel.org/netdev/CAG_fn=Ud3zSW7AZWXc+asfMhZVL5ETnvuY44Pmyv4NPv-ijN-A@mail.gmail.com/ Fixes: `5456262d2b` ("net: Fix incorrect address comparison when searching for a bind2 bucket") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reported-by: Paul Holzinger <pholzing@redhat.com> Link: https://lore.kernel.org/netdev/CAG_fn=Ud3zSW7AZWXc+asfMhZVL5ETnvuY44Pmyv4NPv-ijN-A@mail.gmail.com/ Reviewed-by: Eric Dumazet <edumazet@google.com> Tested-by: Paul Holzinger <pholzing@redhat.com> Reviewed-by: Martin KaFai Lau <martin.lau@kernel.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2023-03-22 13:37:48 +01:00
arch	PCI: s390: Fix use-after-free of PCI resources with per-function hotplug	2023-03-22 13:37:46 +01:00
block	blk-mq: fix "bad unlock balance detected" on q->srcu in __blk_mq_run_dispatch_ops	2023-03-22 13:37:48 +01:00
certs	certs: Fix build error when PKCS#11 URI contains semicolon	2023-01-31 17:53:01 +09:00
crypto	crypto: rsa-pkcs1pad - Use akcipher_request_complete	2023-03-10 09:28:18 +01:00
Documentation	docs: Correct missing "d_" prefix for dentry_operations member d_weak_revalidate	2023-03-22 13:37:42 +01:00
drivers	net: phy: smsc: bail out in lan87xx_read_status if genphy_read_status fails	2023-03-22 13:37:48 +01:00
fs	cifs: Move the in_send statistic to __smb_send_rqst()	2023-03-22 13:37:41 +01:00
include	net: tunnels: annotate lockless accesses to dev->needed_headroom	2023-03-22 13:37:48 +01:00
init	Kbuild fixes for v6.2 (3rd)	2023-01-21 10:56:37 -08:00
io_uring	io_uring/uring_cmd: ensure that device supports IOPOLL	2023-03-17 08:57:45 +01:00
ipc	Non-MM patches for 6.2-rc1.	2022-12-12 17:28:58 -08:00
kernel	watch_queue: fix IOC_WATCH_QUEUE_SET_SIZE alloc error paths	2023-03-17 08:58:00 +01:00
lib	cpuidle: lib/bug: Disable rcu_is_watching() during WARN/BUG	2023-03-10 09:29:06 +01:00
LICENSES	LICENSES: Add the copyleft-next-0.3.1 license	2022-11-08 15:44:01 +01:00
mm	memory tier: release the new_memtier in find_create_memory_tier()	2023-03-10 09:29:50 +01:00
net	tcp: Fix bind() conflict check for dual-stack wildcard address.	2023-03-22 13:37:48 +01:00
rust	rust: print: avoid evaluating arguments in `pr_*` macros in `unsafe` blocks	2023-01-16 00:54:35 +01:00
samples	ftrace: Export ftrace_free_filter() to modules	2023-01-24 11:20:58 -05:00
scripts	scripts: handle BrokenPipeError for python scripts	2023-03-17 08:58:02 +01:00
security	ima: Align ima_file_mmap() parameters with mmap_file LSM hook	2023-03-10 09:29:36 +01:00
sound	ALSA: hda: Match only Intel devices with CONTROLLER_IN_GPU()	2023-03-22 13:37:44 +01:00
tools	selftests: fix LLVM build for i386 and x86_64	2023-03-22 13:37:45 +01:00
usr	usr/gen_init_cpio.c: remove unnecessary -1 values from int file	2022-10-03 14:21:44 -07:00
virt	KVM: Register /dev/kvm as the _very_ last thing during initialization	2023-03-10 09:29:33 +01:00
.clang-format	iommufd for 6.2	2022-12-14 09:15:43 -08:00
.cocciconfig	scripts: add Linux .cocciconfig for coccinelle	2016-07-22 12:13:39 +02:00
.get_maintainer.ignore	get_maintainer: add Alan to .get_maintainer.ignore	2022-08-20 15:17:44 -07:00
.gitattributes	.gitattributes: use 'dts' diff driver for dts files	2019-12-04 19:44:11 -08:00
.gitignore	.gitignore: ignore *.rpm	2022-12-30 17:22:14 +09:00
.mailmap	12 hotfixes, mostly against mm/. Five of these fixes are cc:stable.	2023-02-13 14:09:20 -08:00
.rustfmt.toml	rust: add `.rustfmt.toml`	2022-09-28 09:02:20 +02:00
COPYING	COPYING: state that all contributions really are covered by this file	2020-02-10 13:32:20 -08:00
CREDITS	MAINTAINERS: update SCTP maintainers	2023-02-02 11:35:33 -08:00
Kbuild	Kbuild updates for v6.1	2022-10-10 12:00:45 -07:00
Kconfig	kbuild: ensure full rebuild when the compiler is updated	2020-05-12 13:28:33 +09:00
MAINTAINERS	audit: update the mailing list in MAINTAINERS	2023-02-25 11:13:29 +01:00
Makefile	Linux 6.2.7	2023-03-17 08:58:04 +01:00
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.