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Randomly changing MSRs can have unpredictable results.
We tried to protect from writes on descriptions level,
but it does not work well, the fuzzer has figured out:
03:37:28 executing program 3:
syz_open_dev$MSR(&(0x7f0000000040), 0x0, 0x0)
r0 = syz_open_procfs(0x0, &(0x7f0000000180)='fd/3\x00')
pwritev(r0, ...)
Fortunately there is a command line argument that disables all writes.
Use it instead.
Note: older kernels will need:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a7e1f67ed29f
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=02a16aa13574
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