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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-25 11:48:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-25 11:48:08 +0300 |
| commit | c04005ef3576893e2db315d9ea2cfa4cf88b2c05 (patch) | |
| tree | c5f73e026486ef172ca5b0f48a34c67d6aa69c5e /fs/overlayfs/super.c | |
| parent | d15a6b92acfe1f4d7c3d4cf628a348deb7ad6eb3 (diff) | |
| parent | ef4999852d307d38cfdecd91ed6892cc03beb9b8 (diff) | |
| download | linux-rolling-lts.tar.xz | |
Merge v6.12.25linux-rolling-lts
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/overlayfs/super.c')
| -rw-r--r-- | fs/overlayfs/super.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index fe511192f83c..87a36c6eea5f 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -1119,6 +1119,11 @@ static struct ovl_entry *ovl_get_lowerstack(struct super_block *sb, return ERR_PTR(-EINVAL); } + if (ctx->nr == ctx->nr_data) { + pr_err("at least one non-data lowerdir is required\n"); + return ERR_PTR(-EINVAL); + } + err = -EINVAL; for (i = 0; i < ctx->nr; i++) { l = &ctx->lower[i]; |