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Tiwei Bie 160cd5f956 um: net: Do not use drvdata in release commit `d1db692a9b` upstream. The drvdata is not available in release. Let's just use container_of() to get the uml_net instance. Otherwise, removing a network device will result in a crash: RIP: 0033:net_device_release+0x10/0x6f RSP: 00000000e20c7c40 EFLAGS: 00010206 RAX: 000000006002e4e7 RBX: 00000000600f1baf RCX: 00000000624074e0 RDX: 0000000062778000 RSI: 0000000060551c80 RDI: 00000000627af028 RBP: 00000000e20c7c50 R08: 00000000603ad594 R09: 00000000e20c7b70 R10: 000000000000135a R11: 00000000603ad422 R12: 0000000000000000 R13: 0000000062c7af00 R14: 0000000062406d60 R15: 00000000627700b6 Kernel panic - not syncing: Segfault with no mm CPU: 0 UID: 0 PID: 29 Comm: kworker/0:2 Not tainted 6.12.0-rc6-g59b723cd2adb #1 Workqueue: events mc_work_proc Stack: 627af028 62c7af00 e20c7c80 60276fcd 62778000 603f5820 627af028 00000000 e20c7cb0 603a2bcd 627af000 62770010 Call Trace: [<60276fcd>] device_release+0x70/0xba [<603a2bcd>] kobject_put+0xba/0xe7 [<60277265>] put_device+0x19/0x1c [<60281266>] platform_device_put+0x26/0x29 [<60281e5f>] platform_device_unregister+0x2c/0x2e [<6002ec9c>] net_remove+0x63/0x69 [<60031316>] ? mconsole_reply+0x0/0x50 [<600310c8>] mconsole_remove+0x160/0x1cc [<60087d40>] ? __remove_hrtimer+0x38/0x74 [<60087ff8>] ? hrtimer_try_to_cancel+0x8c/0x98 [<6006b3cf>] ? dl_server_stop+0x3f/0x48 [<6006b390>] ? dl_server_stop+0x0/0x48 [<600672e8>] ? dequeue_entities+0x327/0x390 [<60038fa6>] ? um_set_signals+0x0/0x43 [<6003070c>] mc_work_proc+0x77/0x91 [<60057664>] process_scheduled_works+0x1b3/0x2dd [<60055f32>] ? assign_work+0x0/0x58 [<60057f0a>] worker_thread+0x1e9/0x293 [<6005406f>] ? set_pf_worker+0x0/0x64 [<6005d65d>] ? arch_local_irq_save+0x0/0x2d [<6005d748>] ? kthread_exit+0x0/0x3a [<60057d21>] ? worker_thread+0x0/0x293 [<6005dbf1>] kthread+0x126/0x12b [<600219c5>] new_thread_handler+0x85/0xb6 Cc: stable@vger.kernel.org Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com> Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com> Link: https://patch.msgid.link/20241104163203.435515-4-tiwei.btw@antgroup.com Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2024-12-14 19:54:02 +01:00
arch	um: net: Do not use drvdata in release	2024-12-14 19:54:02 +01:00
block	block: fix bio_split_rw_at to take zone_write_granularity into account	2024-12-14 19:53:15 +01:00
certs	certs: Fix build error when PKCS#11 URI contains semicolon	2023-02-09 11:28:11 +01:00
crypto	crypto: api - Add crypto_clone_tfm	2024-12-14 19:53:51 +01:00
Documentation	dt-bindings: iio: dac: ad3552r: fix maximum spi speed	2024-12-14 19:54:00 +01:00
drivers	ubi: wl: Put source PEB into correct list if trying locking LEB failed	2024-12-14 19:54:02 +01:00
fs	exfat: fix uninit-value in __exfat_get_dentry_set	2024-12-14 19:54:00 +01:00
include	locking/lockdep: Avoid creating new name string literals in lockdep_set_subclass()	2024-12-14 19:54:00 +01:00
init	initramfs: avoid filename buffer overrun	2024-12-14 19:53:14 +01:00
io_uring	io_uring: fix possible deadlock in io_register_iowq_max_workers()	2024-11-17 15:07:21 +01:00
ipc	sysctl: treewide: drop unused argument ctl_table_root::set_ownership(table)	2024-08-11 12:35:51 +02:00
kernel	rcu-tasks: Fix access non-existent percpu rtpcp variable in rcu_tasks_need_gpcb()	2024-12-14 19:53:56 +01:00
lib	lib/buildid: Fix build ID parsing logic	2024-11-22 15:37:32 +01:00
LICENSES	LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers	2021-12-16 14:33:10 +01:00
mm	mm: resolve faulty mmap_region() error path behaviour	2024-11-22 15:37:34 +01:00
net	netfilter: ipset: add missing range check in bitmap_ip_uadt	2024-12-14 19:54:01 +01:00
rust	rust: macros: provide correct provenance when constructing THIS_MODULE	2024-10-17 15:22:24 +02:00
samples	bpf: Fix the xdp_adjust_tail sample prog issue	2024-12-14 19:53:27 +01:00
scripts	kconfig: qconf: fix buffer overflow in debug links	2024-10-17 15:22:03 +02:00
security	apparmor: test: Fix memory leak for aa_unpack_strdup()	2024-12-14 19:53:59 +01:00
sound	ASoC: codecs: Fix atomicity violation in snd_soc_component_get_drvdata()	2024-12-14 19:53:58 +01:00
tools	selftests/mount_setattr: Fix failures on 64K PAGE_SIZE kernels	2024-12-14 19:53:48 +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: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin()	2024-06-27 13:46:21 +02:00
.clang-format	inet: ping: use hlist_nulls rcu iterator during lookup	2022-12-01 12:42:46 +01:00
.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	Remove *.orig pattern from .gitignore	2024-10-17 15:21:15 +02:00
.mailmap	9 hotfixes. 6 for MM, 3 for other areas. Four of these patches address	2022-12-10 17:10:52 -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: Remove Michal Marek from Kbuild maintainers	2022-11-16 14:53:00 +09:00
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	MAINTAINERS: add leah to 6.1 MAINTAINERS file	2024-05-17 11:56:16 +02:00
Makefile	Linux 6.1.119	2024-11-22 15:37:35 +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.