diff options
| author | Edward Adam Davis <eadavis@qq.com> | 2023-12-30 17:00:03 +0800 |
|---|---|---|
| committer | Konstantin Komarov <almaz.alexandrovich@paragon-software.com> | 2024-01-29 12:05:08 +0300 |
| commit | 731ab1f9828800df871c5a7ab9ffe965317d3f15 (patch) | |
| tree | 1967b71ee0bd915d2eabbd4e1bad9cd373eeab6d /fs/ntfs3 | |
| parent | b2dd7b953c25ffd5912dda17e980e7168bebcf6c (diff) | |
fs/ntfs3: Fix oob in ntfs_listxattr
The length of name cannot exceed the space occupied by ea.
Reported-and-tested-by: syzbot+65e940cfb8f99a97aca7@syzkaller.appspotmail.com
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Diffstat (limited to 'fs/ntfs3')
| -rw-r--r-- | fs/ntfs3/xattr.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ntfs3/xattr.c b/fs/ntfs3/xattr.c index 071356d096d8..53e7d1fa036a 100644 --- a/fs/ntfs3/xattr.c +++ b/fs/ntfs3/xattr.c @@ -219,6 +219,9 @@ static ssize_t ntfs_list_ea(struct ntfs_inode *ni, char *buffer, if (!ea->name_len) break; + if (ea->name_len > ea_size) + break; + if (buffer) { /* Check if we can use field ea->name */ if (off + ea_size > size) |