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From a92b4f6373cb18544325436cf86abfebd6780d79 Mon Sep 17 00:00:00 2001
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From: Homma <homma@allworks.co.jp>
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Date: Fri, 5 Jul 2019 16:10:41 +0530
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Subject: [PATCH 409/449] system/posix-acl: update ctx only if iatt is non-NULL
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We need to safe-guard against possible zero'ing out of iatt
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structure in acl ctx, which can cause many issues.
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> upstream patch: https://review.gluster.org/#/c/glusterfs/+/23003/
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> fixes: 1668286
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> Change-Id: Ie81a57d7453a6624078de3be8c0845bf4d432773
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> Signed-off-by: Amar Tumballi <amarts@redhat.com>
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BUG: 1781649
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Change-Id: I655b61551d30215b9f23cafc3ef9a5c0d98a43d0
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Signed-off-by: Raghavendra M <raghavendra@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/202446
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Tested-by: RHGS Build Bot <nigelb@redhat.com>
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Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
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---
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xlators/system/posix-acl/src/posix-acl.c | 8 ++++++++
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1 file changed, 8 insertions(+)
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diff --git a/xlators/system/posix-acl/src/posix-acl.c b/xlators/system/posix-acl/src/posix-acl.c
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index 38e48b8..c6ba281 100644
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--- a/xlators/system/posix-acl/src/posix-acl.c
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+++ b/xlators/system/posix-acl/src/posix-acl.c
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@@ -875,6 +875,13 @@ posix_acl_ctx_update(inode_t *inode, xlator_t *this, struct iatt *buf,
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int ret = 0;
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int i = 0;
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+ if (!buf || !buf->ia_ctime) {
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+ /* No need to update ctx if buf is empty */
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+ gf_log_callingfn(this->name, GF_LOG_DEBUG, "iatt struct is empty (%d)",
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+ fop);
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+ goto out;
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+ }
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+
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LOCK(&inode->lock);
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{
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ctx = __posix_acl_ctx_get(inode, this, _gf_true);
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@@ -928,6 +935,7 @@ posix_acl_ctx_update(inode_t *inode, xlator_t *this, struct iatt *buf,
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}
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unlock:
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UNLOCK(&inode->lock);
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+out:
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return ret;
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}
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--
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1.8.3.1
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