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jfs: Fix array index bounds check in dbAdjTree

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commit c61b3e4839007668360ed8b87d7da96d2e59fc6c upstream.

Bounds checking tools can flag a bug in dbAdjTree() for an array index
out of bounds in dmt_stree. Since dmt_stree can refer to the stree in
both structures dmaptree and dmapctl, use the larger array to eliminate
the false positive.

Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Reported-by: butt3rflyh4ck <butterflyhuangxx@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dave Kleikamp 2020-11-13 14:58:46 -06:00 committed by Greg Kroah-Hartman
parent 41bf5eed80
commit c2032bf94b
1 changed files with 1 additions and 1 deletions
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2
fs/jfs/jfs_dmap.h
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@ -183,7 +183,7 @@ typedef union dmtree {
#define dmt_leafidx t1.leafidx
#define dmt_height t1.height
#define dmt_budmin t1.budmin
#define dmt_stree t1.stree
#define dmt_stree t2.stree
/*
* on-disk aggregate disk allocation map descriptor.