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Filename Latest commit message Latest commit date
Menglong Dong 42ccf9d14e coredump: fix core_pattern parse error
commit 2bf509d96d84c3336d08375e8af34d1b85ee71c8 upstream.

'format_corename()' will splite 'core_pattern' on spaces when it is in
pipe mode, and take helper_argv[0] as the path to usermode executable.
It works fine in most cases.

However, if there is a space between '|' and '/file/path', such as
'| /usr/lib/systemd/systemd-coredump %P %u %g', then helper_argv[0] will
be parsed as '', and users will get a 'Core dump to | disabled'.

It is not friendly to users, as the pattern above was valid previously.
Fix this by ignoring the spaces between '|' and '/file/path'.

Fixes: 315c69261d ("coredump: split pipe command whitespace before expanding template")
Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Paul Wise <pabs3@bonedaddy.net>
Cc: Jakub Wilk <jwilk@jwilk.net> [https://bugs.debian.org/924398]
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/5fb62870.1c69fb81.8ef5d.af76@mx.google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-11 13:23:30 +01:00
arch x86/uprobes: Do not use prefixes.nbytes when looping over prefixes.bytes 2020-12-11 13:23:30 +01:00
block blk-cgroup: Pre-allocate tree node on blkg_conf_prep 2020-11-10 12:37:30 +01:00
certs
crypto crypto: algif_skcipher - EBUSY on aio should be an error 2020-10-29 09:57:30 +01:00
Documentation dt-bindings: net: correct interrupt flags in examples 2020-12-08 10:40:25 +01:00
drivers dm: remove invalid sparse __acquires and __releases annotations 2020-12-11 13:23:30 +01:00
fs coredump: fix core_pattern parse error 2020-12-11 13:23:30 +01:00
include genirq/irqdomain: Add an irq_create_mapping_affinity() function 2020-12-11 13:23:30 +01:00
init printk: reduce LOG_BUF_SHIFT range for H8300 2020-11-05 11:43:16 +01:00
ipc
kernel genirq/irqdomain: Add an irq_create_mapping_affinity() function 2020-12-11 13:23:30 +01:00
lib random32: make prandom_u32() output unpredictable 2020-11-18 19:20:20 +01:00
LICENSES
mm mm, page_alloc: skip ->waternark_boost for atomic order-0 allocations 2020-11-24 13:29:24 +01:00
net net/sched: act_mpls: ensure LSE is pullable before reading it 2020-12-08 10:40:27 +01:00
samples samples/bpf: Fix possible deadlock in xdpsock 2020-11-05 11:43:17 +01:00
scripts scripts/setlocalversion: make git describe output more reliable 2020-11-01 12:01:01 +01:00
security ima: extend boot_aggregate with kernel measurements 2020-12-08 10:40:24 +01:00
sound ALSA: hda/generic: Add option to enforce preferred_dacs pairs 2020-12-11 13:23:29 +01:00
tools x86/uprobes: Do not use prefixes.nbytes when looping over prefixes.bytes 2020-12-11 13:23:30 +01:00
usr
virt KVM: arm64: vgic-v3: Drop the reporting of GICR_TYPER.Last for userspace 2020-12-02 08:49:46 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Documentation/llvm: add documentation on building w/ Clang/LLVM 2020-08-26 10:40:46 +02:00
Makefile Linux 5.4.82 2020-12-08 10:40:28 +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.