* [merged] coredump-fix-core_pattern-parse-error.patch removed from -mm tree
@ 2020-12-08 0:46 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2020-12-08 0:46 UTC (permalink / raw)
To: dong.menglong, jwilk, mm-commits, nhorman, pabs3, stable
The patch titled
Subject: coredump: fix core_pattern parse error
has been removed from the -mm tree. Its filename was
coredump-fix-core_pattern-parse-error.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Menglong Dong <dong.menglong@zte.com.cn>
Subject: coredump: fix core_pattern parse error
'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',
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'.
Link: https://lkml.kernel.org/r/5fb62870.1c69fb81.8ef5d.af76@mx.google.com
Fixes: 315c69261dd3 ("coredump: split pipe command whitespace before expanding template")
Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn>
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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
fs/coredump.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/coredump.c~coredump-fix-core_pattern-parse-error
+++ a/fs/coredump.c
@@ -229,7 +229,8 @@ static int format_corename(struct core_n
*/
if (ispipe) {
if (isspace(*pat_ptr)) {
- was_space = true;
+ if (cn->used != 0)
+ was_space = true;
pat_ptr++;
continue;
} else if (was_space) {
_
Patches currently in -mm which might be from dong.menglong@zte.com.cn are
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2020-12-08 0:46 [merged] coredump-fix-core_pattern-parse-error.patch removed from -mm tree akpm
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