* Re: KASAN: use-after-free Read in __fput [not found] <001a1146fbf6a6305c055cfdf55e@google.com> @ 2017-12-04 16:44 ` Al Viro 2017-12-04 18:39 ` Dmitry Vyukov 0 siblings, 1 reply; 4+ messages in thread From: Al Viro @ 2017-12-04 16:44 UTC (permalink / raw) To: syzbot; +Cc: linux-fsdevel, linux-kernel, syzkaller-bugs On Thu, Nov 02, 2017 at 04:05:01AM -0700, syzbot wrote: > Hello, > > syzkaller hit the following crash on > 3a99df9a3d14cd866b5516f8cba515a3bfd554ab > git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/master > compiler: gcc (GCC) 7.1.1 20170620 > .config is attached > Raw console output is attached. That one is almost certainly double-free in kcm_clone() fixed in https://marc.info/?l=linux-netdev&m=151208776817071&q=raw ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: KASAN: use-after-free Read in __fput 2017-12-04 16:44 ` KASAN: use-after-free Read in __fput Al Viro @ 2017-12-04 18:39 ` Dmitry Vyukov 2017-12-04 18:43 ` Al Viro 0 siblings, 1 reply; 4+ messages in thread From: Dmitry Vyukov @ 2017-12-04 18:39 UTC (permalink / raw) To: Al Viro; +Cc: syzbot, linux-fsdevel, LKML, syzkaller-bugs On Mon, Dec 4, 2017 at 5:44 PM, Al Viro <viro@zeniv.linux.org.uk> wrote: > On Thu, Nov 02, 2017 at 04:05:01AM -0700, syzbot wrote: >> Hello, >> >> syzkaller hit the following crash on >> 3a99df9a3d14cd866b5516f8cba515a3bfd554ab >> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/master >> compiler: gcc (GCC) 7.1.1 20170620 >> .config is attached >> Raw console output is attached. > > That one is almost certainly double-free in kcm_clone() fixed in > https://marc.info/?l=linux-netdev&m=151208776817071&q=raw Hi, What's the title of that commit? We need the title for syzbot. "fix kcm_clone()"? I don't see such commit in net-next. ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: KASAN: use-after-free Read in __fput 2017-12-04 18:39 ` Dmitry Vyukov @ 2017-12-04 18:43 ` Al Viro 2018-02-12 16:13 ` Dmitry Vyukov 0 siblings, 1 reply; 4+ messages in thread From: Al Viro @ 2017-12-04 18:43 UTC (permalink / raw) To: Dmitry Vyukov; +Cc: syzbot, linux-fsdevel, LKML, syzkaller-bugs On Mon, Dec 04, 2017 at 07:39:29PM +0100, Dmitry Vyukov wrote: > On Mon, Dec 4, 2017 at 5:44 PM, Al Viro <viro@zeniv.linux.org.uk> wrote: > > On Thu, Nov 02, 2017 at 04:05:01AM -0700, syzbot wrote: > >> Hello, > >> > >> syzkaller hit the following crash on > >> 3a99df9a3d14cd866b5516f8cba515a3bfd554ab > >> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/master > >> compiler: gcc (GCC) 7.1.1 20170620 > >> .config is attached > >> Raw console output is attached. > > > > That one is almost certainly double-free in kcm_clone() fixed in > > https://marc.info/?l=linux-netdev&m=151208776817071&q=raw > > Hi, > > What's the title of that commit? We need the title for syzbot. "fix > kcm_clone()"? I don't see such commit in net-next. For a good and simple reason that it's _not_ in net-next yet. ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: KASAN: use-after-free Read in __fput 2017-12-04 18:43 ` Al Viro @ 2018-02-12 16:13 ` Dmitry Vyukov 0 siblings, 0 replies; 4+ messages in thread From: Dmitry Vyukov @ 2018-02-12 16:13 UTC (permalink / raw) To: Al Viro; +Cc: syzbot, linux-fsdevel, LKML, syzkaller-bugs On Mon, Dec 4, 2017 at 7:43 PM, Al Viro <viro@zeniv.linux.org.uk> wrote: > On Mon, Dec 04, 2017 at 07:39:29PM +0100, Dmitry Vyukov wrote: >> On Mon, Dec 4, 2017 at 5:44 PM, Al Viro <viro@zeniv.linux.org.uk> wrote: >> > On Thu, Nov 02, 2017 at 04:05:01AM -0700, syzbot wrote: >> >> Hello, >> >> >> >> syzkaller hit the following crash on >> >> 3a99df9a3d14cd866b5516f8cba515a3bfd554ab >> >> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/master >> >> compiler: gcc (GCC) 7.1.1 20170620 >> >> .config is attached >> >> Raw console output is attached. >> > >> > That one is almost certainly double-free in kcm_clone() fixed in >> > https://marc.info/?l=linux-netdev&m=151208776817071&q=raw >> >> Hi, >> >> What's the title of that commit? We need the title for syzbot. "fix >> kcm_clone()"? I don't see such commit in net-next. > > For a good and simple reason that it's _not_ in net-next yet. #syz fix: fix kcm_clone() ^ permalink raw reply [flat|nested] 4+ messages in thread
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2017-12-04 16:44 ` KASAN: use-after-free Read in __fput Al Viro
2017-12-04 18:39 ` Dmitry Vyukov
2017-12-04 18:43 ` Al Viro
2018-02-12 16:13 ` Dmitry Vyukov
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