Messages in this thread | | | From | Dmitry Vyukov <> | Date | Tue, 19 Dec 2017 10:06:37 +0100 | Subject | Re: WARNING in sysfs_warn_dup |
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On Tue, Dec 19, 2017 at 10:03 AM, Dmitry Vyukov <dvyukov@google.com> wrote: > > On Tue, Dec 19, 2017 at 10:01 AM, Greg KH <gregkh@linuxfoundation.org> wrote: >> >> On Mon, Dec 18, 2017 at 08:57:01AM -0800, syzbot wrote: >> > Hello, >> > >> > syzkaller hit the following crash on >> > 6084b576dca2e898f5c101baef151f7bfdbb606d >> > git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/master >> > compiler: gcc (GCC) 7.1.1 20170620 >> > .config is attached >> > Raw console output is attached. >> > >> > Unfortunately, I don't have any reproducer for this bug yet. >> > >> > >> > netlink: 9 bytes leftover after parsing attributes in process >> > `syz-executor3'. >> > sg_write: data in/out 822404280/197 bytes for SCSI command 0x12-- guessing >> > data in; >> > program syz-executor0 not setting count and/or reply_len properly >> > sg_write: data in/out 262364/161 bytes for SCSI command 0xff-- guessing data >> > in; >> > program syz-executor0 not setting count and/or reply_len properly >> > WARNING: CPU: 1 PID: 22282 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x60/0x80 >> > fs/sysfs/dir.c:30 >> > Kernel panic - not syncing: panic_on_warn set ... >> >> Looks like a networking issue, it tried to create two sysfs directories >> with the same name, which isn't a sysfs bug :)
Now as plain text:
+net/core/dev.c maintainers
Let's keep the footer as well, so that people know how to handle this report:
--- This bug is generated by a dumb bot. It may contain errors. See https://goo.gl/tpsmEJ for details. Direct all questions to syzkaller@googlegroups.com. Please credit me with: Reported-by: syzbot <syzkaller@googlegroups.com>
syzbot will keep track of this bug report. Once a fix for this bug is merged into any tree, reply to this email with: #syz fix: exact-commit-title To mark this as a duplicate of another syzbot report, please reply with: #syz dup: exact-subject-of-another-report If it's a one-off invalid bug report, please reply with: #syz invalid Note: if the crash happens again, it will cause creation of a new bug report. Note: all commands must start from beginning of the line in the email body.
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