Messages in this thread | | | From | Michael Ellerman <> | Subject | Re: [PATCH] powerpc/fsl_book3e: Don't set rodata RO too early | Date | Tue, 24 May 2022 21:09:59 +1000 |
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On Thu, 19 May 2022 19:24:15 +0200, Christophe Leroy wrote: > On fsl_book3e, rodata is set read-only at the same time as > init text is set NX at the end of init. That's too early. > > As both action are performed at the same time, delay both > actions to the time rodata is expected to be made read-only. > > It means we will have a small window with init mem freed but > still executable. It shouldn't be an issue though, especially > because the said memory gets poisoned and should therefore > result to a bad instruction fault in case it gets executer. > > [...]
Applied to powerpc/next.
[1/1] powerpc/fsl_book3e: Don't set rodata RO too early https://git.kernel.org/powerpc/c/ad91f66f5fa7c6f9346e721c3159ce818568028b
cheers
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