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Change History

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix to wait on block writeback for post_read case

If inode is compressed, but not encrypted, it missed to call
f2fs_wait_on_block_writeback() to wait for GCed page writeback
in IPU write path.

Thread A				GC-Thread
					- f2fs_gc
					 - do_garbage_collect
					  - gc_data_segment
					   - move_data_block
					    - f2fs_submit_page_write
					     migrate normal cluster's block via
					     meta_inode's page cache
- 

kernel.org https://git.kernel.org/stable/c/4535be48780431753505e74e1b1ad4836a189bc2 [No types assigned]

kernel.org https://git.kernel.org/stable/c/55fdc1c24a1d6229fe0ecf31335fb9a2eceaaa00 [No types assigned]

kernel.org https://git.kernel.org/stable/c/9bfd5ea71521d0e522ba581c6ccc5db93759c0c3 [No types assigned]

kernel.org https://git.kernel.org/stable/c/f904c156d8011d8291ffd5b6b398f3747e294986 [No types assigned]