On Mon, Feb 10, 2020 at 09:45:06AM -0000, Stuart Henderson wrote: > On 2020-02-10, Janne Johansson <icepic...@gmail.com> wrote: > > Den lör 8 feb. 2020 kl 11:31 skrev <whistlez...@riseup.net>: > > > >> Hi, > >> I have some strange output from dmesg, what could be ? > >> At the follwoing link I've posted some screenshots: > >> https://postimg.cc/gallery/1o4wsaw74/ > >> > > > > dmesg is contained in a memory buffer with (hopefully) room for more than > > one dmesg, so you can get > > previous versions listed when you run it. If the memory gets slightly > > corrupted during reboots, > > I guess the "other" dmesgs can come out as garbage, based on how memory > > gets reused or > > reallocated in the time between reboot and next boot when the OS isn't in > > control of the > > RAM. > > From the contents, this one looks like it was probably overwritten with > some UEFI code during boot. >
Could be a UEFI rootkit ? Or something that from UEFI try to inject code in the kernel ?
