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Filename Latest commit message Latest commit date
Yang Yingliang 0dd52e141a iio: trigger: sysfs: fix possible memory leak in iio_sysfs_trig_init()
commit efa17e90e1711bdb084e3954fa44afb6647331c0 upstream.

dev_set_name() allocates memory for name, it need be freed
when device_add() fails, call put_device() to give up the
reference that hold in device_initialize(), so that it can
be freed in kobject_cleanup() when the refcount hit to 0.

Fault injection test can trigger this:

unreferenced object 0xffff8e8340a7b4c0 (size 32):
  comm "modprobe", pid 243, jiffies 4294678145 (age 48.845s)
  hex dump (first 32 bytes):
    69 69 6f 5f 73 79 73 66 73 5f 74 72 69 67 67 65  iio_sysfs_trigge
    72 00 a7 40 83 8e ff ff 00 86 13 c4 f6 ee ff ff  r..@............
  backtrace:
    [<0000000074999de8>] __kmem_cache_alloc_node+0x1e9/0x360
    [<00000000497fd30b>] __kmalloc_node_track_caller+0x44/0x1a0
    [<000000003636c520>] kstrdup+0x2d/0x60
    [<0000000032f84da2>] kobject_set_name_vargs+0x1e/0x90
    [<0000000092efe493>] dev_set_name+0x4e/0x70

Fixes: 1f785681a8 ("staging:iio:trigger sysfs userspace trigger rework.")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20221022074212.1386424-1-yangyingliang@huawei.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-25 17:42:19 +01:00
arch arm64: dts: imx8mn: Fix NAND controller size-cells 2022-11-25 17:42:15 +01:00
block block: sed-opal: kmalloc the cmd/resp buffers 2022-11-25 17:42:14 +01:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:11:22 +02:00
crypto crypto: akcipher - default implementation for setting a private key 2022-10-26 13:22:45 +02:00
Documentation tracing/histogram: Update document for KEYS_MAX size 2022-11-10 17:57:55 +01:00
drivers iio: trigger: sysfs: fix possible memory leak in iio_sysfs_trig_init() 2022-11-25 17:42:19 +01:00
fs cifs: add check for returning value of SMB2_set_info_init 2022-11-25 17:42:16 +01:00
include vmlinux.lds.h: Fix placement of '.data..decrypted' section 2022-11-25 17:42:09 +01:00
init random: handle latent entropy and command line from random_init() 2022-06-22 14:11:17 +02:00
ipc ipc: remove memcg accounting for sops objects in do_semtimedop() 2022-11-10 17:57:58 +01:00
kernel ring_buffer: Do not deactivate non-existant pages 2022-11-25 17:42:17 +01:00
lib dyndbg: let query-modname override actual module name 2022-10-26 13:22:37 +02:00
LICENSES
mm mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages 2022-11-03 23:56:54 +09:00
net net/x25: Fix skb leak in x25_lapb_receive_frame() 2022-11-25 17:42:16 +01:00
samples
scripts cert host tools: Stop complaining about deprecated OpenSSL functions 2022-11-25 17:42:10 +01:00
security capabilities: fix potential memleak on error path from vfs_getxattr_alloc() 2022-11-10 17:57:55 +01:00
sound ALSA: usb-audio: Drop snd_BUG_ON() from snd_usbmidi_output_open() 2022-11-25 17:42:17 +01:00
tools selftests/intel_pstate: fix build for ARCH=x86_64 2022-11-25 17:42:12 +01:00
usr
virt KVM: arm64: vgic: Fix exit condition in scan_its_table() 2022-10-29 10:20:35 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: add Chandan as xfs maintainer for 5.4.y 2022-09-28 11:03:58 +02:00
Makefile Linux 5.4.224 2022-11-10 17:57:58 +01:00
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.