glusterfs/SOURCES/0261-features-utime-Fix-mem_put-crash.patch

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2019-11-06 16:44:52 +00:00
From 1aa175f353325775517daf1d48a19799e0cafc7a Mon Sep 17 00:00:00 2001
From: Pranith Kumar K <pkarampu@redhat.com>
Date: Mon, 22 Jul 2019 20:55:33 +0530
Subject: [PATCH 261/261] features/utime: Fix mem_put crash
Problem:
When frame->local is not null FRAME_DESTROY calls mem_put on it.
Since the stub is already destroyed in call_resume(), it leads
to crash
Fix:
Set frame->local to NULL before calling call_resume()
Backport of:
> Patch: https://review.gluster.org/23091
> fixes: bz#1593542
> Change-Id: I0f8adf406f4cefdb89d7624ba7a9d9c2eedfb1de
> Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
BUG: 1715422
Change-Id: I0f8adf406f4cefdb89d7624ba7a9d9c2eedfb1de
Signed-off-by: Kotresh HR <khiremat@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/176726
Tested-by: RHGS Build Bot <nigelb@redhat.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
---
xlators/features/utime/src/utime.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/xlators/features/utime/src/utime.c b/xlators/features/utime/src/utime.c
index 2a986e7..e3a80b6 100644
--- a/xlators/features/utime/src/utime.c
+++ b/xlators/features/utime/src/utime.c
@@ -139,12 +139,14 @@ gf_utime_set_mdata_setxattr_cbk(call_frame_t *frame, void *cookie,
xlator_t *this, int op_ret, int op_errno,
dict_t *xdata)
{
+ call_stub_t *stub = frame->local;
/* Don't fail lookup if mdata setxattr fails */
if (op_ret) {
gf_msg(this->name, GF_LOG_ERROR, op_errno, UTIME_MSG_SET_MDATA_FAILED,
"dict set of key for set-ctime-mdata failed");
}
- call_resume(frame->local);
+ frame->local = NULL;
+ call_resume(stub);
return 0;
}
--
1.8.3.1