linux-kernel - Re: [PATCH v2] MIPS: kernel: Fix random segmentation faults

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Message-ID: <87qztskall.ffs@tglx>
Date: Thu, 20 Nov 2025 16:05:58 +0100
From: Thomas Gleixner <tglx@...utronix.de>
To: Thomas Bogendoerfer <tsbogend@...ha.franken.de>, Thomas Weißschuh
 <thomas.weissschuh@...utronix.de>, Nam Cao <namcao@...utronix.de>,
 linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] MIPS: kernel: Fix random segmentation faults

On Thu, Nov 20 2025 at 13:10, Thomas Bogendoerfer wrote:
> Commit 69896119dc9d ("MIPS: vdso: Switch to generic storage
> implementation") switches to a generic vdso storage, which increases
> the number of data pages from 1 to 4. But there is only one page
> reserved, which causes segementation faults depending where the VDSO
> area is randomized to. To fix this use the same size of reservation
> and allocation of the VDSO data pages.
>
> Fixes: 69896119dc9d ("MIPS: vdso: Switch to generic storage implementation")
> Signed-off-by: Thomas Bogendoerfer <tsbogend@...ha.franken.de>

I assume this goes through the MIPS tree to Linus.

Reviewed-by: Thomas Gleixner <tglx@...utronix.de>