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Subject[PATCH] Re: memory leak in reiserfs_fill_super
From
Date
From: Randy Dunlap <rdunlap@infradead.org>

fill_super() conditionally allocates a jdev string if "jdev=x"
is specified. put_super() should free that memory.

Reported-by: syzbot+1c6756baf4b16b94d2a6@syzkaller.appspotmail.com
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
---
fs/reiserfs/super.c | 1 +
1 file changed, 1 insertion(+)

--- linux-next-20191213.orig/fs/reiserfs/super.c
+++ linux-next-20191213/fs/reiserfs/super.c
@@ -629,6 +629,7 @@ static void reiserfs_put_super(struct su
reiserfs_write_unlock(s);
mutex_destroy(&REISERFS_SB(s)->lock);
destroy_workqueue(REISERFS_SB(s)->commit_wq);
+ kfree(REISERFS_SB(s)->s_jdev);
kfree(s->s_fs_info);
s->s_fs_info = NULL;
}
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