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| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2021-02-01 03:28:48 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-02-24 16:51:48 -0500 |
| commit | 220fa478fb1a84e51235b92506ff5d48415f0a8e (patch) | |
| tree | b234a6019677e43688fbb115403cba2730da4c70 /fs | |
| parent | da7991b38e1f6d9b172a72650286be2558dc447f (diff) | |
| download | u-boot-220fa478fb1a84e51235b92506ff5d48415f0a8e.tar.gz u-boot-220fa478fb1a84e51235b92506ff5d48415f0a8e.tar.bz2 u-boot-220fa478fb1a84e51235b92506ff5d48415f0a8e.zip | |
fs/squashfs: NULL dereference in sqfs_closedir()
sqfs_opendir() called in sqfs_size(), sqfs_read(), sqfs_exists() may fail
leading to sqfs_closedir(NULL) being called. Do not dereference NULL.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/squashfs/sqfs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/squashfs/sqfs.c b/fs/squashfs/sqfs.c index dca13bd1f1..29805c3c6f 100644 --- a/fs/squashfs/sqfs.c +++ b/fs/squashfs/sqfs.c @@ -1716,6 +1716,9 @@ void sqfs_closedir(struct fs_dir_stream *dirs) { struct squashfs_dir_stream *sqfs_dirs; + if (!dirs) + return; + sqfs_dirs = (struct squashfs_dir_stream *)dirs; free(sqfs_dirs->inode_table); free(sqfs_dirs->dir_table); |