Ksawlii/kernel_samsung_a53x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
kernel_samsung_a53x/arch/um/drivers
History
Tiwei Bie ebbcc30756 um: net: Do not use drvdata in release 
commit d1db692a9be3b4bd3473b64fcae996afaffe8438 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>
2024-12-17 13:24:19 +01:00
..
chan.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
chan_kern.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
chan_user.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
chan_user.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cow.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cow_sys.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cow_user.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
daemon.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
daemon_kern.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
daemon_user.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fd.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
harddog_kern.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
harddog_user.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hostaudio_kern.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Kconfig Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
line.c Revert "um: line: always fill *error_out in setup_one_line()" 2024-11-24 00:23:40 +01:00
line.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Makefile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mconsole.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mconsole_kern.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mconsole_kern.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mconsole_user.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mmapper_kern.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
net_kern.c um: net: Do not use drvdata in release 2024-12-17 13:24:19 +01:00
net_user.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
null.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pcap_kern.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pcap_user.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pcap_user.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
port.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
port_kern.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
port_user.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pty.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
random.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
slip.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
slip_common.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
slip_common.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
slip_kern.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
slip_user.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
slirp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
slirp_kern.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
slirp_user.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ssl.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stderr_console.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stdio_console.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stdio_console.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tty.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ubd.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ubd_kern.c um: ubd: Do not use drvdata in release 2024-12-17 13:24:19 +01:00
ubd_user.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
umcast.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
umcast_kern.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
umcast_user.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vde.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vde_kern.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vde_user.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vector_kern.c um: vector: fix bpfflash parameter evaluation 2024-11-19 12:27:06 +01:00
vector_kern.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vector_transports.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vector_user.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vector_user.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vhost_user.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
virtio_uml.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xterm.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xterm.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xterm_kern.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00