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Subash Abhinov Kasiviswanathan 09535b865c ANDROID: netfilter: xt_IDLETIMER: Fix use after free condition during work
schedule_work(&timer->work) appears to be called after
cancel_work_sync(&info->timer->work) is completed.
Work can be scheduled from the PM_POST_SUSPEND notification event
even after cancel_work_sync is called.

Call stack

-004|notify_netlink_uevent(
    |    [X19] timer = 0xFFFFFFC0A5DFC780 -> (
    |      ...
    |      [NSD:0xFFFFFFC0A5DFC800] kobj = 0x6B6B6B6B6B6B6B6B,
    |      [NSD:0xFFFFFFC0A5DFC868] timeout = 0x6B6B6B6B,
    |      [NSD:0xFFFFFFC0A5DFC86C] refcnt = 0x6B6B6B6B,
    |      [NSD:0xFFFFFFC0A5DFC870] work_pending = 0x6B,
    |      [NSD:0xFFFFFFC0A5DFC871] send_nl_msg = 0x6B,
    |      [NSD:0xFFFFFFC0A5DFC872] active = 0x6B,
    |      [NSD:0xFFFFFFC0A5DFC874] uid = 0x6B6B6B6B,
    |      [NSD:0xFFFFFFC0A5DFC878] suspend_time_valid = 0x6B))
-005|idletimer_tg_work(
-006|__read_once_size(inline)
-006|static_key_count(inline)
-006|static_key_false(inline)
-006|trace_workqueue_execute_end(inline)
-006|process_one_work(
-007|worker_thread(
-008|kthread(
-009|ret_from_fork(asm)
---|end of frame

Force any pending idletimer_tg_work() to complete before freeing
the associated work struct and after unregistering to the pm_notifier
callback.

Change-Id: I4c5f0a1c142f7d698c092cf7bcafdb0f9fbaa9c1
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
2018-08-28 17:10:42 +05:30
arch ANDROID: goldfish: add ranchu defconfigs 2018-08-28 17:10:42 +05:30
block blk-wbt: don't maintain inflight counts if disabled 2018-08-23 09:34:46 -06:00
certs export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR() 2018-08-22 23:21:44 +09:00
crypto DMAengine updates for v4.19-rc1 2018-08-18 15:55:59 -07:00
Documentation ANDROID: net: ip-sysctl: Document tcp_fwmark_accept 2018-08-28 17:10:42 +05:30
drivers ANDROID: net: wireless: wlcore: Disable filtering in AP role 2018-08-28 17:10:42 +05:30
firmware
fs ANDROID: mm: add a field to store names for private anonymous memory 2018-08-28 17:10:42 +05:30
include ANDROID: netfilter: xt_IDLETIMER: Add new netlink msg type 2018-08-28 17:10:42 +05:30
init ANDROID: initramfs: Add skip_initramfs command line option 2018-08-28 17:10:42 +05:30
ipc ipc/util.c: update return value of ipc_getref from int to bool 2018-08-22 10:52:52 -07:00
kernel ANDROID: mm: add a field to store names for private anonymous memory 2018-08-28 17:10:42 +05:30
lib Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax 2018-08-26 11:48:42 -07:00
LICENSES
mm ANDROID: mm: add a field to store names for private anonymous memory 2018-08-28 17:10:42 +05:30
net ANDROID: netfilter: xt_IDLETIMER: Fix use after free condition during work 2018-08-28 17:10:42 +05:30
samples samples/bpf: all XDP samples should unload xdp/bpf prog on SIGTERM 2018-08-16 21:55:32 +02:00
scripts ANDROID: kbuild: Makefile.clean: make Kbuild and Makefile optional 2018-08-28 17:10:42 +05:30
security ANDROID: net: paranoid: commoncap: Begin to warn users of implicit PARANOID_NETWORK capability grants 2018-08-28 17:10:42 +05:30
sound Merge branch 'akpm' (patches from Andrew) 2018-08-23 19:20:12 -07:00
tools Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax 2018-08-26 11:48:42 -07:00
usr initramfs: move gen_initramfs_list.sh from scripts/ to usr/ 2018-08-22 23:21:44 +09:00
virt ARM: Support for Group0 interrupts in guests, Cache management 2018-08-22 13:52:44 -07:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore ANDROID: add script to fetch android kernel config fragments 2018-08-28 16:44:09 +05:30
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
build.config.goldfish.arm ANDROID: build: add build server configs for goldfish 2018-08-28 17:10:42 +05:30
build.config.goldfish.arm64 ANDROID: build: add build server configs for goldfish 2018-08-28 17:10:42 +05:30
build.config.goldfish.mips ANDROID: build: add build server configs for goldfish 2018-08-28 17:10:42 +05:30
build.config.goldfish.mips64 ANDROID: build: add build server configs for goldfish 2018-08-28 17:10:42 +05:30
build.config.goldfish.x86 ANDROID: build: add build server configs for goldfish 2018-08-28 17:10:42 +05:30
build.config.goldfish.x86_64 ANDROID: build: add build server configs for goldfish 2018-08-28 17:10:42 +05:30
COPYING
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
Kbuild
Kconfig
MAINTAINERS libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
Makefile ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple 2018-08-28 17:10:42 +05:30
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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.