Re: [syzbot] [nilfs?] [mm?] KASAN: slab-use-after-free Read in lru_add_fn

Hillf Danton
2024-06-12T23:16:54Z

On Tue, 11 Jun 2024 11:10:20 -0700
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit: 83a7eefedc9b Linux 6.10-rc3
> git tree: upstream
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17c645e2980000

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

--- x/fs/nilfs2/the_nilfs.c
+++ y/fs/nilfs2/the_nilfs.c
@@ -922,7 +922,6 @@ void nilfs_put_root(struct nilfs_root *r
spin_unlock(&nilfs->ns_cptree_lock);

nilfs_sysfs_delete_snapshot_group(root);
- iput(root->ifile);

kfree(root);
}
--