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Filename Latest commit message Latest commit date
Yang Yingliang f01e16d324 pinctrl: core: fix possible memory leak in pinctrl_enable() 
commit c7892ae13e461ed20154321eb792e07ebe38f5b3 upstream.

I got memory leak as follows when doing fault injection test:

unreferenced object 0xffff888020a7a680 (size 64):
  comm "i2c-mcp23018-41", pid 23090, jiffies 4295160544 (age 8.680s)
  hex dump (first 32 bytes):
    00 48 d3 1e 80 88 ff ff 00 1a 56 c1 ff ff ff ff  .H........V.....
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000083c79b35>] kmem_cache_alloc_trace+0x16d/0x360
    [<0000000051803c95>] pinctrl_init_controller+0x6ed/0xb70
    [<0000000064346707>] pinctrl_register+0x27/0x80
    [<0000000029b0e186>] devm_pinctrl_register+0x5b/0xe0
    [<00000000391f5a3e>] mcp23s08_probe_one+0x968/0x118a [pinctrl_mcp23s08]
    [<000000006112c039>] mcp230xx_probe+0x266/0x560 [pinctrl_mcp23s08_i2c]

If pinctrl_claim_hogs() fails, the 'pindesc' allocated in pinctrl_register_one_pin()
need be freed.

Cc: stable@vger.kernel.org
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 950b0d91dc ("pinctrl: core: Fix regression caused by delayed work for hogs")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20211022014323.1156924-1-yangyingliang@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-11-17 09:48:26 +01:00
arch powerpc/85xx: Fix oops when mpc85xx_smp_guts_ids node cannot be found 2021-11-17 09:48:25 +01:00
block Revert "block, bfq: honor already-setup queue merges" 2021-10-06 15:42:34 +02:00
certs certs: Trigger creation of RSA module signing key if it's not an RSA key 2021-09-15 09:47:29 +02:00
crypto crypto: shash - avoid comparing pointers to exported functions under CFI 2021-07-14 16:53:13 +02:00
Documentation xen/balloon: add late_initcall_sync() for initial ballooning done 2021-11-17 09:48:25 +01:00
drivers pinctrl: core: fix possible memory leak in pinctrl_enable() 2021-11-17 09:48:26 +01:00
fs quota: correct error number in free_dqentry() 2021-11-17 09:48:26 +01:00
include serial: core: Fix initializing and restoring termios speed 2021-11-17 09:48:25 +01:00
init kbuild: add CONFIG_LD_IS_LLD 2021-06-30 08:47:44 -04:00
ipc
kernel signal: Remove the bogus sigkill_pending in ptrace_stop 2021-11-17 09:48:24 +01:00
lib Kconfig.debug: drop selecting non-existing HARDLOCKUP_DETECTOR_ARCH 2021-09-26 14:07:10 +02:00
LICENSES
mm mm, slub: fix potential memoryleak in kmem_cache_open() 2021-10-27 09:54:28 +02:00
net can: j1939: j1939_can_recv(): ignore messages with invalid source address 2021-11-17 09:48:25 +01:00
samples samples: bpf: Fix tracex7 error raised on the missing argument 2021-09-22 12:26:30 +02:00
scripts gcc-plugins/structleak: add makefile var for disabling structleak 2021-10-27 09:54:28 +02:00
security evm: mark evm_fixmode as __ro_after_init 2021-11-17 09:48:23 +01:00
sound ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume 2021-11-17 09:48:25 +01:00
tools perf script: Check session->header.env.arch before using it 2021-11-02 19:46:15 +01:00
usr
virt KVM: do not shrink halt_poll_ns below grow_start 2021-10-09 14:39:50 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
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Makefile Linux 5.4.159 2021-11-12 14:43:05 +01:00
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.