Messages in this thread | | | Subject | Re: [PATCH] Fix: buffer overflow during hvc_alloc(). | From | Andrew Donnellan <> | Date | Tue, 7 Apr 2020 16:23:06 +1000 |
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On 6/4/20 6:05 pm, Andrew Melnichenko wrote: > > Steps to Reproduce: > > 1. boot guest with command [1] > 2. load and unload virtio_console inside guest with loop.sh > # cat loop.sh > while [ 1 ] > do > modprobe virtio_console > lsmod | grep virt > modprobe -r virtio_console > lsmod | grep virt > done > > > > Actual results: > Guest reboot and can get vmcore-dmesg.txt file > > > Expected results: > Guest works well without error > > > Additional info: > The whole log will attach to the attachments. > > Call Trace: > [ 22.974500] fuse: init (API version 7.31) > [ 81.498208] ------------[ cut here ]------------ > [ 81.499263] pvqspinlock: lock 0xffffffff92080020 has corrupted > value 0xc0774ca0! > [ 81.501000] WARNING: CPU: 0 PID: 785 at > kernel/locking/qspinlock_paravirt.h:500
[snip]
Thanks!
You should include an appropriate excerpt from this - the WARNING message and stack trace, and the steps to reproduce - in the commit message of the patch.
-- Andrew Donnellan OzLabs, ADL Canberra ajd@linux.ibm.com IBM Australia Limited
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