Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns

2016-12-17 Thread Andrey Konovalov
On Fri, Dec 16, 2016 at 7:01 PM, Alan Stern wrote: > On Mon, 12 Dec 2016, Andrey Konovalov wrote: > >> Hi! >> >> While running the syzkaller fuzzer I've got the following error report. >> >> On commit 3c49de52d5647cda8b42c4255cf8a29d1e22eff5 (Dev 2). >> >> WARNING: CPU: 2 PID: 865 at fs/sysfs/dir.

Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns

2016-12-16 Thread Alan Stern
On Mon, 12 Dec 2016, Andrey Konovalov wrote: > Hi! > > While running the syzkaller fuzzer I've got the following error report. > > On commit 3c49de52d5647cda8b42c4255cf8a29d1e22eff5 (Dev 2). > > WARNING: CPU: 2 PID: 865 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x8a/0xa0 > gadgetfs: disconnected > sy

Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns

2016-12-13 Thread Dmitry Vyukov
"On Tue, Dec 13, 2016 at 9:09 PM, Alan Stern wrote: > On Tue, 13 Dec 2016, Dmitry Vyukov wrote: > >> On Tue, Dec 13, 2016 at 7:38 PM, Alan Stern >> wrote: >> > On Tue, 13 Dec 2016, Dmitry Vyukov wrote: >> > >> >> On Tue, Dec 13, 2016 at 4:52 PM, Alan Stern >> >> wrote: >> >> > On Tue, 13 Dec 2

Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns

2016-12-13 Thread Alan Stern
On Tue, 13 Dec 2016, Dmitry Vyukov wrote: > On Tue, Dec 13, 2016 at 7:38 PM, Alan Stern wrote: > > On Tue, 13 Dec 2016, Dmitry Vyukov wrote: > > > >> On Tue, Dec 13, 2016 at 4:52 PM, Alan Stern > >> wrote: > >> > On Tue, 13 Dec 2016, Dmitry Vyukov wrote: > >> > > >> >> >> > If it is > >> >> >>

Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns

2016-12-13 Thread Dmitry Vyukov
On Tue, Dec 13, 2016 at 7:38 PM, Alan Stern wrote: > On Tue, 13 Dec 2016, Dmitry Vyukov wrote: > >> On Tue, Dec 13, 2016 at 4:52 PM, Alan Stern >> wrote: >> > On Tue, 13 Dec 2016, Dmitry Vyukov wrote: >> > >> >> >> > If it is >> >> >> > not a bug in kernel source code, then it must not produce

Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns

2016-12-13 Thread Alan Stern
On Tue, 13 Dec 2016, Dmitry Vyukov wrote: > On Tue, Dec 13, 2016 at 4:52 PM, Alan Stern wrote: > > On Tue, 13 Dec 2016, Dmitry Vyukov wrote: > > > >> >> > If it is > >> >> > not a bug in kernel source code, then it must not produce a WARNING. > >> > > >> > What about a memory allocation failure?

Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns

2016-12-13 Thread Dmitry Vyukov
On Tue, Dec 13, 2016 at 4:52 PM, Alan Stern wrote: > On Tue, 13 Dec 2016, Dmitry Vyukov wrote: > >> >> > If it is >> >> > not a bug in kernel source code, then it must not produce a WARNING. >> > >> > What about a memory allocation failure? The memory management part of >> > the kernel produces

Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns

2016-12-13 Thread Alan Stern
On Tue, 13 Dec 2016, Dmitry Vyukov wrote: > >> > If it is > >> > not a bug in kernel source code, then it must not produce a WARNING. > > > > What about a memory allocation failure? The memory management part of > > the kernel produces a WARNING message if an allocation fails and the > > caller

Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns

2016-12-13 Thread Dmitry Vyukov
On Mon, Dec 12, 2016 at 11:04 PM, Alan Stern wrote: > On Mon, 12 Dec 2016, Alan Stern wrote: > >> On Mon, 12 Dec 2016, Dmitry Vyukov wrote: >> >> > On Mon, Dec 12, 2016 at 10:05 PM, Alan Stern >> > wrote: >> > > On Mon, 12 Dec 2016, Andrey Konovalov wrote: >> > > >> > >> Hi! >> > >> >> > >> Whil

Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns

2016-12-12 Thread Alan Stern
On Mon, 12 Dec 2016, Alan Stern wrote: > On Mon, 12 Dec 2016, Dmitry Vyukov wrote: > > > On Mon, Dec 12, 2016 at 10:05 PM, Alan Stern > > wrote: > > > On Mon, 12 Dec 2016, Andrey Konovalov wrote: > > > > > >> Hi! > > >> > > >> While running the syzkaller fuzzer I've got the following error repo

Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns

2016-12-12 Thread Greg Kroah-Hartman
On Mon, Dec 12, 2016 at 10:16:50PM +0100, Dmitry Vyukov wrote: > On Mon, Dec 12, 2016 at 10:05 PM, Alan Stern > wrote: > > On Mon, 12 Dec 2016, Andrey Konovalov wrote: > > > >> Hi! > >> > >> While running the syzkaller fuzzer I've got the following error report. > >> > >> On commit 3c49de52d5647c

Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns

2016-12-12 Thread Alan Stern
On Mon, 12 Dec 2016, Dmitry Vyukov wrote: > On Mon, Dec 12, 2016 at 10:05 PM, Alan Stern > wrote: > > On Mon, 12 Dec 2016, Andrey Konovalov wrote: > > > >> Hi! > >> > >> While running the syzkaller fuzzer I've got the following error report. > >> > >> On commit 3c49de52d5647cda8b42c4255cf8a29d1e

Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns

2016-12-12 Thread Dmitry Vyukov
On Mon, Dec 12, 2016 at 10:05 PM, Alan Stern wrote: > On Mon, 12 Dec 2016, Andrey Konovalov wrote: > >> Hi! >> >> While running the syzkaller fuzzer I've got the following error report. >> >> On commit 3c49de52d5647cda8b42c4255cf8a29d1e22eff5 (Dev 2). >> >> WARNING: CPU: 2 PID: 865 at fs/sysfs/dir

Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns

2016-12-12 Thread Alan Stern
On Mon, 12 Dec 2016, Andrey Konovalov wrote: > Hi! > > While running the syzkaller fuzzer I've got the following error report. > > On commit 3c49de52d5647cda8b42c4255cf8a29d1e22eff5 (Dev 2). > > WARNING: CPU: 2 PID: 865 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x8a/0xa0 > gadgetfs: disconnected > sy

usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns

2016-12-12 Thread Andrey Konovalov
Hi! While running the syzkaller fuzzer I've got the following error report. On commit 3c49de52d5647cda8b42c4255cf8a29d1e22eff5 (Dev 2). WARNING: CPU: 2 PID: 865 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x8a/0xa0 gadgetfs: disconnected sysfs: cannot create duplicate filename '/devices/platform/dummy_h