From: Konstantin Komarov almaz.alexandrovich@paragon-software.com
commit cd39981fb92adf0cc736112f87e3e61602baa415 upstream.
Pointer to options was freed twice on remount Fixes xfstest generic/361 Fixes: 82cae269cfa9 ("fs/ntfs3: Add initialization of super block")
Signed-off-by: Konstantin Komarov almaz.alexandrovich@paragon-software.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ntfs3/super.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
--- a/fs/ntfs3/super.c +++ b/fs/ntfs3/super.c @@ -30,6 +30,7 @@ #include <linux/fs_context.h> #include <linux/fs_parser.h> #include <linux/log2.h> +#include <linux/minmax.h> #include <linux/module.h> #include <linux/nls.h> #include <linux/seq_file.h> @@ -390,7 +391,7 @@ static int ntfs_fs_reconfigure(struct fs return -EINVAL; }
- memcpy(sbi->options, new_opts, sizeof(*new_opts)); + swap(sbi->options, fc->fs_private);
return 0; } @@ -900,6 +901,8 @@ static int ntfs_fill_super(struct super_ ref.high = 0;
sbi->sb = sb; + sbi->options = fc->fs_private; + fc->fs_private = NULL; sb->s_flags |= SB_NODIRATIME; sb->s_magic = 0x7366746e; // "ntfs" sb->s_op = &ntfs_sops; @@ -1262,8 +1265,6 @@ load_root: goto put_inode_out; }
- fc->fs_private = NULL; - return 0;
put_inode_out: @@ -1416,7 +1417,6 @@ static int ntfs_init_fs_context(struct f mutex_init(&sbi->compress.mtx_lzx); #endif
- sbi->options = opts; fc->s_fs_info = sbi; ok: fc->fs_private = opts;