Module Name: src
Committed By: fox
Date: Mon Mar 9 15:40:50 UTC 2020
Modified Files:
src/external/cddl/osnet/dist/uts/common/fs/zfs: metaslab.c
Log Message:
external/cddl/osnet: Fix possible null pointer access.
Detected by UBSan and fixed upstream, pick only the fix from the commit.
Cherry-pick:
>From 928e8ad47d3478a3d5d01f0dd6ae74a9371af65e Mon Sep 17 00:00:00 2001
From: Serapheim Dimitropoulos <[email protected]>
Date: Wed, 20 Feb 2019 09:59:57 -0800
Subject: [PATCH] Introduce auxiliary metaslab histograms
Reviewed by: Paul Dagnelie <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Reviewed by: Matt Ahrens <[email protected]>
Signed-off-by: Serapheim Dimitropoulos <[email protected]>
Closes #8358
Reviewed by: kamil@
To generate a diff of this commit:
cvs rdiff -u -r1.1.1.3 -r1.2 \
src/external/cddl/osnet/dist/uts/common/fs/zfs/metaslab.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/external/cddl/osnet/dist/uts/common/fs/zfs/metaslab.c
diff -u src/external/cddl/osnet/dist/uts/common/fs/zfs/metaslab.c:1.1.1.3 src/external/cddl/osnet/dist/uts/common/fs/zfs/metaslab.c:1.2
--- src/external/cddl/osnet/dist/uts/common/fs/zfs/metaslab.c:1.1.1.3 Mon May 28 20:52:58 2018
+++ src/external/cddl/osnet/dist/uts/common/fs/zfs/metaslab.c Mon Mar 9 15:40:50 2020
@@ -3370,7 +3370,7 @@ metaslab_alloc(spa_t *spa, metaslab_clas
zio_alloc_list_t *zal, zio_t *zio)
{
dva_t *dva = bp->blk_dva;
- dva_t *hintdva = hintbp->blk_dva;
+ dva_t *hintdva = (hintbp != NULL) ? hintbp->blk_dva : NULL;
int error = 0;
ASSERT(bp->blk_birth == 0);
