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author | Manas Ghandat <ghandatmanas@gmail.com> | 2023-10-25 11:39:07 +0530 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-05 20:14:15 +0000 |
commit | 7110650b85dd2f1cee819acd1345a9013a1a62f7 (patch) | |
tree | 8850731f06804bc247b093dc225e36bc353f6f6e | |
parent | edff092a59260bf0b0a2eba219cb3da6372c2f9f (diff) | |
download | linux-stable-7110650b85dd2f1cee819acd1345a9013a1a62f7.tar.gz linux-stable-7110650b85dd2f1cee819acd1345a9013a1a62f7.tar.bz2 linux-stable-7110650b85dd2f1cee819acd1345a9013a1a62f7.zip |
jfs: fix slab-out-of-bounds Read in dtSearch
[ Upstream commit fa5492ee89463a7590a1449358002ff7ef63529f ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
-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 = |