microsoft
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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/drivers/media/radio
История
Yang Yingliang 893a766ac8 media: si470x-i2c: fix possible memory leak in si470x_i2c_probe() 
[ Upstream commit ef054e345e ]

n the 'radio->hdl.error' error handling, ctrl handler allocated by
v4l2_ctrl_new_std() does not released, and caused memory leak as
follows:

unreferenced object 0xffff888033d54200 (size 256):
  comm "i2c-si470x-19", pid 909, jiffies 4294914203 (age 8.072s)
  hex dump (first 32 bytes):
    e8 69 11 03 80 88 ff ff 00 46 d5 33 80 88 ff ff  .i.......F.3....
    10 42 d5 33 80 88 ff ff 10 42 d5 33 80 88 ff ff  .B.3.....B.3....
  backtrace:
    [<00000000086bd4ed>] __kmalloc_node+0x1eb/0x360
    [<00000000bdb68871>] kvmalloc_node+0x66/0x120
    [<00000000fac74e4c>] v4l2_ctrl_new+0x7b9/0x1c60 [videodev]
    [<00000000693bf940>] v4l2_ctrl_new_std+0x19b/0x270 [videodev]
    [<00000000c0cb91bc>] si470x_i2c_probe+0x2d3/0x9a0 [radio_si470x_i2c]
    [<0000000056a6f01f>] i2c_device_probe+0x4d8/0xbe0

Fix the error handling path to avoid memory leak.

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 8c081b6f9a ("media: radio: Critical v4l2 registration...")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2022-01-27 11:03:20 +01:00
..
si470x media: si470x-i2c: fix possible memory leak in si470x_i2c_probe() 2022-01-27 11:03:20 +01:00
si4713 media: radio: si4713: constify static struct v4l2_ioctl_ops 2021-06-02 13:26:11 +02:00
wl128x media: wl128x: get rid of a potential spectre issue 2020-09-03 11:09:32 +02:00
Kconfig media: docs: move driver-specific info to driver-api 2020-04-14 10:36:18 +02:00
Makefile media: remove unneeded header search paths 2019-05-18 11:49:56 +09:00
dsbr100.c Linux 5.2-rc4 2019-06-11 12:09:28 -04:00
lm7000.h
…
radio-aimslab.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
radio-aztech.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
radio-cadet.c media: media/radio: set device_caps in struct video_device 2019-06-05 08:19:12 -04:00
radio-gemtek.c media: don't do a 31 bit shift on a signed int 2019-08-26 14:11:10 -03:00
radio-isa.c isa: Make the remove callback for isa drivers return void 2021-01-26 07:42:27 +01:00
radio-isa.h isa: Make the remove callback for isa drivers return void 2021-01-26 07:42:27 +01:00
radio-keene.c Linux 5.2-rc4 2019-06-11 12:09:28 -04:00
radio-ma901.c Linux 5.2-rc4 2019-06-11 12:09:28 -04:00
radio-maxiradio.c media: use getter/setter functions 2021-03-11 11:59:42 +01:00
radio-miropcm20.c media: media/radio: set device_caps in struct video_device 2019-06-05 08:19:12 -04:00
radio-mr800.c Linux 5.2-rc4 2019-06-11 12:09:28 -04:00
radio-raremono.c media: radio-raremono: change devm_k*alloc to k*alloc 2019-06-27 07:35:24 -04:00
radio-rtrack2.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
radio-sf16fmi.c media: media/radio: set device_caps in struct video_device 2019-06-05 08:19:12 -04:00
radio-sf16fmr2.c isa: Make the remove callback for isa drivers return void 2021-01-26 07:42:27 +01:00
radio-shark.c media: use strscpy() instead of strlcpy() 2018-09-11 13:32:17 -04:00
radio-shark2.c media: use strscpy() instead of strlcpy() 2018-09-11 13:32:17 -04:00
radio-si476x.c media: radio-si476x: rectify spelling and grammar 2021-03-22 11:58:42 +01:00
radio-tea5764.c Linux 5.2-rc4 2019-06-11 12:09:28 -04:00
radio-tea5777.c Linux 5.2-rc4 2019-06-11 12:09:28 -04:00
radio-tea5777.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
radio-terratec.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
radio-timb.c Linux 5.2-rc4 2019-06-11 12:09:28 -04:00
radio-trust.c media: remove include stdarg.h from some drivers 2019-08-26 14:01:44 -03:00
radio-typhoon.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
radio-wl1273.c media: radio-wl1273: Avoid card name truncation 2021-11-18 19:16:28 +01:00
radio-zoltrix.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
saa7706h.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
tea575x.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
tef6862.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00