Re: [PATCH v2] hfsplus: free failed b-tree nodes in hfs_bnode_put()

[Song jeonghak <thdwjdgkr123@gmail.com>]

Hi Slava,

> I've accepted this patchset [1] recently with some modifications on my
> side. I assume that it has fixed the issue already. Am I wrong?

You are right, it fixes the issue. I missed that patchset: it was not
sent to syzbot, so it is not listed on the syzbot page, and that was
where I looked for earlier fixes. Sorry for the noise.

To be sure, I applied ed8b389cf5e1 ("hfsplus: fix B-tree node leak on
hfs_btree_open() error path") from your for-next branch on top of
next-20261023 and ran the syzbot C reproducer in QEMU (x86_64, kmemleak):

  next-20261023:               leak reported in 1 of 1 runs
  next-20261023 + ed8b389cf5e1: no leak in 3 of 3 runs, two of which
                               ran with slub_debug=FZPU

Please drop my patch.

That commit has no Reported-by or Closes tag, so syzbot will keep this
report open. If you can still amend it, could you add these?

  Reported-by: syzbot+98547b0428b6a6a3467c@syzkaller.appspotmail.com
  Closes: https://syzkaller.appspot.com/bug?extid=98547b0428b6a6a3467c

Otherwise I can send a "#syz fix:" command once the commit is in
linux-next.

Tested-by: Song jeonghak <thdwjdgkr123@gmail.com>

Regards,
Song jeonghak