Re: [PATCH v8 5/7] mseal sysmap: uprobe mapping

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To: jeffxu@xxxxxxxxxxxx
Subject: Re: [PATCH v8 5/7] mseal sysmap: uprobe mapping
From: Oleg Nesterov <oleg@xxxxxxxxxx>
Date: Mon, 3 Mar 2025 07:28:01 +0100
Cc: akpm@xxxxxxxxxxxxxxxxxxxx, keescook@xxxxxxxxxxxx, jannh@xxxxxxxxxx, torvalds@xxxxxxxxxxxxxxxxxxxx, vbabka@xxxxxxx, lorenzo.stoakes@xxxxxxxxxx, Liam.Howlett@xxxxxxxxxx, adhemerval.zanella@xxxxxxxxxx, avagin@xxxxxxxxx, benjamin@xxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-hardening@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx, jorgelo@xxxxxxxxxxxx, sroettger@xxxxxxxxxx, hch@xxxxxx, ojeda@xxxxxxxxxx, thomas.weissschuh@xxxxxxxxxxxxx, adobriyan@xxxxxxxxx, johannes@xxxxxxxxxxxxxxxx, pedro.falcato@xxxxxxxxx, hca@xxxxxxxxxxxxx, willy@xxxxxxxxxxxxx, anna-maria@xxxxxxxxxxxxx, mark.rutland@xxxxxxx, linus.walleij@xxxxxxxxxx, Jason@xxxxxxxxx, deller@xxxxxx, rdunlap@xxxxxxxxxxxxx, davem@xxxxxxxxxxxxx, peterx@xxxxxxxxxx, f.fainelli@xxxxxxxxx, gerg@xxxxxxxxxx, dave.hansen@xxxxxxxxxxxxxxx, mingo@xxxxxxxxxx, ardb@xxxxxxxxxx, mhocko@xxxxxxxx, 42.hyeyoo@xxxxxxxxx, peterz@xxxxxxxxxxxxx, ardb@xxxxxxxxxx, enh@xxxxxxxxxx, rientjes@xxxxxxxxxx, groeck@xxxxxxxxxxxx, mpe@xxxxxxxxxxxxxx, aleksandr.mikhalitsyn@xxxxxxxxxxxxx, mike.rapoport@xxxxxxxxx
In-reply-to: <20250303050921.3033083-6-jeffxu@google.com>
User-agent: Mutt/1.5.24 (2015-08-30)

On 03/03, jeffxu@xxxxxxxxxxxx wrote:
>
> @@ -1683,7 +1683,8 @@ static int xol_add_vma(struct mm_struct *mm, struct xol_area *area)
>  	}
>  
>  	vma = _install_special_mapping(mm, area->vaddr, PAGE_SIZE,
> -				VM_EXEC|VM_MAYEXEC|VM_DONTCOPY|VM_IO,
> +				VM_EXEC|VM_MAYEXEC|VM_DONTCOPY|VM_IO|
> +				VM_SEALED_SYSMAP,
>  				&xol_mapping);

Reviewed-by: Oleg Nesterov <oleg@xxxxxxxxxx>

References:
- [PATCH v8 0/7] mseal system mappings
  - From: jeffxu
- [PATCH v8 5/7] mseal sysmap: uprobe mapping
  - From: jeffxu

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