diff options
| author | Manas Ghandat <ghandatmanas@gmail.com> | 2023-10-25 08:09:07 +0200 |
|---|---|---|
| committer | Dave Kleikamp <dave.kleikamp@oracle.com> | 2023-11-21 22:26:33 +0100 |
| commit | fa5492ee89463a7590a1449358002ff7ef63529f (patch) | |
| tree | a28d2b719915c1629e668ceb98de07048578a4c3 /fs/jfs | |
| parent | UBSAN: array-index-out-of-bounds in dtSplitRoot (diff) | |
| download | linux-fa5492ee89463a7590a1449358002ff7ef63529f.tar.xz linux-fa5492ee89463a7590a1449358002ff7ef63529f.zip | |
jfs: fix slab-out-of-bounds Read in dtSearch
Currently while searching for current page in the sorted entry table
of the page there is a out of bound access. Added a bound check to fix
the error.
Dave:
Set return code to -EIO
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/202310241724.Ed02yUz9-lkp@intel.com/
Signed-off-by: Manas Ghandat <ghandatmanas@gmail.com>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Diffstat (limited to 'fs/jfs')
| -rw-r--r-- | fs/jfs/jfs_dtree.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c index f3d3e8b3f50c..031d8f570f58 100644 --- a/fs/jfs/jfs_dtree.c +++ b/fs/jfs/jfs_dtree.c @@ -633,6 +633,11 @@ int dtSearch(struct inode *ip, struct component_name * key, ino_t * data, for (base = 0, lim = p->header.nextindex; lim; lim >>= 1) { index = base + (lim >> 1); + if (stbl[index] < 0) { + rc = -EIO; + goto out; + } + if (p->header.flag & BT_LEAF) { /* uppercase leaf name to compare */ cmp = |