[PATCH] fs/ntfs3: Check for NULL if ATTR_EA_INFO is incorrect

[Konstantin Komarov]

This can be reason for reported panic.
Fixes: 4342306f0f0d ("fs/ntfs3: Add file operations and implementation")

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@xxxxxxxxxxxxxxxxxxxx>
---
 fs/ntfs3/frecord.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/ntfs3/frecord.c b/fs/ntfs3/frecord.c
index 9a53f809576d..007602badd90 100644
--- a/fs/ntfs3/frecord.c
+++ b/fs/ntfs3/frecord.c
@@ -3080,7 +3080,9 @@ static bool ni_update_parent(struct ntfs_inode *ni, struct NTFS_DUP_INFO *dup,
                        const struct EA_INFO *info;
 
                        info = resident_data_ex(attr, sizeof(struct EA_INFO));
-                       dup->ea_size = info->size_pack;
+                       /* If ATTR_EA_INFO exists 'info' can't be NULL. */
+                       if (info)
+                               dup->ea_size = info->size_pack;
                }
        }
 
-- 
2.33.0