On 2018/04/10 23:33, Tetsuo Handa wrote: > syzbot wrote: >> syzbot has found reproducer for the following crash on upstream commit >> c18bb396d3d261ebbb4efbc05129c5d354c541e4 (Tue Apr 10 00:04:10 2018 +0000) >> Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net >> syzbot dashboard link: >> https://syzkaller.appspot.com/bug?extid=7a1cff37dbbef9e7ba4c >> > While we are waiting for > > rpc_pipefs: fix double-dput() > rpc_pipefs: deal with early sget() failures > kernfs: deal with early sget() failures > procfs: deal with early sget() failures > orangefs_kill_sb(): deal with allocation failures > nfsd_umount(): deal with early sget() failures > nfs: avoid double-free on early sget() failures > jffs2_kill_sb(): deal with failed allocations > hypfs_kill_super(): deal with failed allocations > > in > https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git/log/?h=for-linus > , > I think the patch at > > WARNING in kill_block_super > > https://syzkaller.appspot.com/bug?id=588996a25a2587be2e3a54e8646728fb9cae44e7 > > is better. >
OK. The patch was sent to linux.git as commit 8e04944f0ea8b838. #syz fix: mm,vmscan: Allow preallocating memory for register_shrinker().
