diff options
| author | DaeMyung Kang <charsyam@gmail.com> | 2026-05-30 23:35:11 +0900 |
|---|---|---|
| committer | Namjae Jeon <linkinjeon@kernel.org> | 2026-06-06 00:20:36 +0900 |
| commit | 45dd046ced0f5982a6d64ca449de3a61f5f15669 (patch) | |
| tree | 2372843927e26eec665e245fe513e6569066f751 | |
| parent | 40d88020d0797f96a93edd2e8edc413c2e2d8f84 (diff) | |
| download | linux-stable-45dd046ced0f5982a6d64ca449de3a61f5f15669.tar.gz linux-stable-45dd046ced0f5982a6d64ca449de3a61f5f15669.zip | |
ntfs: reinit search context before volume information lookup
On mount the volume inode is searched for $VOLUME_NAME and then, reusing
the same search context, for $VOLUME_INFORMATION. The $VOLUME_NAME lookup
is optional and its result is otherwise ignored.
Once lookup-time validation can reject a corrupt $VOLUME_NAME with -EIO,
the search context is left in an undefined state: ntfs_attr_find()
documents that on an actual error @ctx->attr is undefined. Continuing the
$VOLUME_INFORMATION search from that context is not contractually valid.
Reinitialize the search context before the $VOLUME_INFORMATION lookup so
it always starts from a well-defined state regardless of the
$VOLUME_NAME lookup outcome.
Cc: stable@vger.kernel.org # v7.1
Signed-off-by: DaeMyung Kang <charsyam@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
| -rw-r--r-- | fs/ntfs/super.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c index 081a29583868..ca882e946a22 100644 --- a/fs/ntfs/super.c +++ b/fs/ntfs/super.c @@ -1461,6 +1461,7 @@ iput_volume_failed: vol->volume_label = NULL; } + ntfs_attr_reinit_search_ctx(ctx); if (ntfs_attr_lookup(AT_VOLUME_INFORMATION, NULL, 0, 0, 0, NULL, 0, ctx) || ctx->attr->non_resident || ctx->attr->flags) { ntfs_attr_put_search_ctx(ctx); |