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Zhengchao Shao ca85cc4e48 net: lapbether: fix issue of invalid opcode in lapbeth_open() [ Upstream commit `3faf7e14ec` ] If lapb_register() failed when lapb device goes to up for the first time, the NAPI is not disabled. As a result, the invalid opcode issue is reported when the lapb device goes to up for the second time. The stack info is as follows: [ 1958.311422][T11356] kernel BUG at net/core/dev.c:6442! [ 1958.312206][T11356] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 1958.315979][T11356] RIP: 0010:napi_enable+0x16a/0x1f0 [ 1958.332310][T11356] Call Trace: [ 1958.332817][T11356] <TASK> [ 1958.336135][T11356] lapbeth_open+0x18/0x90 [ 1958.337446][T11356] __dev_open+0x258/0x490 [ 1958.341672][T11356] __dev_change_flags+0x4d4/0x6a0 [ 1958.345325][T11356] dev_change_flags+0x93/0x160 [ 1958.346027][T11356] devinet_ioctl+0x1276/0x1bf0 [ 1958.346738][T11356] inet_ioctl+0x1c8/0x2d0 [ 1958.349638][T11356] sock_ioctl+0x5d1/0x750 [ 1958.356059][T11356] __x64_sys_ioctl+0x3ec/0x1790 [ 1958.365594][T11356] do_syscall_64+0x35/0x80 [ 1958.366239][T11356] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 1958.377381][T11356] </TASK> Fixes: `514e1150da` ("net: x25: Queue received packets in the drivers instead of per-CPU queues") Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Link: https://lore.kernel.org/r/20221107011445.207372-1-shaozhengchao@huawei.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-04-19 17:56:10 +08:00
arch	KVM: s390: pv: don't allow userspace to set the clock under PV	2023-04-19 17:56:08 +08:00
block	block, bfq: protect 'bfqd->queued' by 'bfqd->lock'	2023-04-19 17:56:02 +08:00
certs
crypto
Documentation	KVM: s390: pv: don't allow userspace to set the clock under PV	2023-04-19 17:56:08 +08:00
drivers	net: lapbether: fix issue of invalid opcode in lapbeth_open()	2023-04-19 17:56:10 +08:00
fs	fuse: fix readdir cache race	2023-04-19 17:56:06 +08:00
include	capabilities: fix undefined behavior in bit shift for CAP_TO_MASK	2023-04-19 17:56:08 +08:00
init
ipc
kernel	bpf: Fix wrong reg type conversion in release_reference()	2023-04-19 17:56:07 +08:00
lib	lib/Kconfig.debug: Add check for non-constant .{s,u}leb128 support to DWARF5	2023-04-19 17:55:38 +08:00
LICENSES
mm	mm/hugetlb: fix races when looking up a CONT-PTE/PMD size hugetlb page	2023-04-19 17:55:55 +08:00
net	tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header	2023-04-19 17:56:09 +08:00
samples
scripts
security	capabilities: fix potential memleak on error path from vfs_getxattr_alloc()	2023-04-19 17:56:03 +08:00
sound	ALSA: aoa: Fix I2S device accounting	2023-04-19 17:55:53 +08:00
tools	bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE	2023-04-19 17:56:07 +08:00
usr
virt	kvm: Add support for arch compat vm ioctls	2023-04-19 17:55:40 +08:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile	Linux 5.15.78	2023-04-19 17:56:06 +08:00
README

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.