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Groups > linux.kernel > #1540648
| From | Alan Stern <stern@rowland.harvard.edu> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns |
| Date | 2016-12-12 22:10 +0100 |
| Message-ID | <sNG1b-R8-1@gated-at.bofh.it> (permalink) |
| References | <sNFHP-v6-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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 > sysfs: cannot create duplicate filename > '/devices/platform/dummy_hcd.0/usb2/2-1/2-1:64.0/ep_05' > Kernel panic - not syncing: panic_on_warn set ... I suppose we could check for USB devices that claim to have two endpoints with the same address. But is it really worthwhile? A kernel warning isn't so bad when you're dealing with buggy device firmware. Alan Stern
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usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns Andrey Konovalov <andreyknvl@google.com> - 2016-12-12 21:50 +0100
Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns Alan Stern <stern@rowland.harvard.edu> - 2016-12-12 22:10 +0100
Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns Dmitry Vyukov <dvyukov@google.com> - 2016-12-12 22:20 +0100
Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-12-12 22:50 +0100
Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns Alan Stern <stern@rowland.harvard.edu> - 2016-12-12 22:50 +0100
Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns Alan Stern <stern@rowland.harvard.edu> - 2016-12-12 23:10 +0100
Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns Dmitry Vyukov <dvyukov@google.com> - 2016-12-13 16:10 +0100
Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns Alan Stern <stern@rowland.harvard.edu> - 2016-12-13 17:00 +0100
Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns Dmitry Vyukov <dvyukov@google.com> - 2016-12-13 17:30 +0100
Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns Alan Stern <stern@rowland.harvard.edu> - 2016-12-13 19:40 +0100
Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns Dmitry Vyukov <dvyukov@google.com> - 2016-12-13 19:50 +0100
Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns Alan Stern <stern@rowland.harvard.edu> - 2016-12-13 21:20 +0100
Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns Dmitry Vyukov <dvyukov@google.com> - 2016-12-13 21:40 +0100
Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns Alan Stern <stern@rowland.harvard.edu> - 2016-12-16 19:10 +0100
Re: usb/core: warning in usb_create_ep_devs/sysfs_create_dir_ns Andrey Konovalov <andreyknvl@google.com> - 2016-12-17 18:20 +0100
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