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From 4a72ac20f728aa5c3141359ff89f1b61d4cd210a Mon Sep 17 00:00:00 2001
From: Mohammed Rafi KC <rkavunga@redhat.com>
Date: Fri, 17 May 2019 23:03:35 +0530
Subject: [PATCH 157/169] afr/frame: Destroy frame after
afr_selfheal_entry_granular
In function "afr_selfheal_entry_granular", after completing the
heal we are not destroying the frame. This will lead to crash.
when we execute statedump operation, where it tried to access
xlator object. If this xlator object is freed as part of the
graph destroy this will lead to an invalid memory access
Upstream patch:https://review.gluster.org/22743
>Change-Id: I0a5e78e704ef257c3ac0087eab2c310e78fbe36d
>fixes: bz#1708926
>Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Change-Id: I326354008e6d98376c8333d270f2f80036ad07f0
BUG: 1716626
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/172282
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Tested-by: RHGS Build Bot <nigelb@redhat.com>
---
xlators/cluster/afr/src/afr-self-heal-entry.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/xlators/cluster/afr/src/afr-self-heal-entry.c b/xlators/cluster/afr/src/afr-self-heal-entry.c
index fc09b4c..a6890fa 100644
--- a/xlators/cluster/afr/src/afr-self-heal-entry.c
+++ b/xlators/cluster/afr/src/afr-self-heal-entry.c
@@ -832,6 +832,8 @@ afr_selfheal_entry_granular(call_frame_t *frame, xlator_t *this, fd_t *fd,
subvol = priv->children[subvol_idx];
args.frame = afr_copy_frame(frame);
+ if (!args.frame)
+ goto out;
args.xl = this;
/* args.heal_fd represents the fd associated with the original directory
* on which entry heal is being attempted.
@@ -850,9 +852,10 @@ afr_selfheal_entry_granular(call_frame_t *frame, xlator_t *this, fd_t *fd,
* do not treat heal as failure.
*/
if (is_src)
- return -errno;
+ ret = -errno;
else
- return 0;
+ ret = 0;
+ goto out;
}
ret = syncop_dir_scan(subvol, &loc, GF_CLIENT_PID_SELF_HEALD, &args,
@@ -862,7 +865,9 @@ afr_selfheal_entry_granular(call_frame_t *frame, xlator_t *this, fd_t *fd,
if (args.mismatch == _gf_true)
ret = -1;
-
+out:
+ if (args.frame)
+ AFR_STACK_DESTROY(args.frame);
return ret;
}
--
1.8.3.1