Re: [f2fs-dev] [PATCH] f2fs: fix to avoid folio->mapping dereference in is_{meta, node}_folio()

[patchwork-bot+f2fs]

Hello:

This patch was applied to jaegeuk/f2fs.git (dev)
by Jaegeuk Kim <jaegeuk@xxxxxxxxxx>:

On Thu, 10 Sep 2026 02:20:26 +0000 you wrote:
> From: Chao Yu <chao@xxxxxxxxxx>
> 
> Otherwise, it may cause NULL pointer dereference in race condition:
> 
> Thread A			Thread B
> 				- f2fs_setattr
> 				 - f2fs_truncate
> 				  - f2fs_truncate_blocks
> 			    	   - f2fs_do_truncate_blocks
> 				    - f2fs_truncate_inode_blocks
> 				     - truncate_dnode
> 				      - truncate_node
> 				       - invalidate_mapping_pages
> 				        - folio->mapping = NULL
> - folio_lock
> - is_node_folio
>  - F2FS_F_SB(folio): dereference on folio->mapping
> 
> [...]

Here is the summary with links:
  - [f2fs-dev] f2fs: fix to avoid folio->mapping dereference in is_{meta, node}_folio()
    https://git.kernel.org/jaegeuk/f2fs/c/b5a71253c5c7

You are awesome, thank you!
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