diff options
| author |   David Howells <dhowells@redhat.com> | 2026-05-12 13:33:57 +0100 |
|---|---|---|
| committer |   Christian Brauner <brauner@kernel.org> | 2026-05-12 14:42:32 +0200 |
| commit | 6d91acc7fb85d33ea58fca9b964a32a453937f4b (patch) | |
| tree | 926e7986e3a968fdc65c5dc647f92d5be3becc6b /tools/testing/selftests/dm-verity/git:/ssh:/git@git.zx2c4.com | |
| parent | netfs: Fix potential UAF in netfs_unlock_abandoned_read_pages() (diff) | |
netfs: Fix partial invalidation of streaming-write folio
In netfs_invalidate_folio(), if the region of a partial invalidation
overlaps the front (but not all) of a dirty write cached in a streaming
write page (dirty, but not uptodate, with the dirty region tracked by a
netfs_folio struct), the function modifies the dirty region - but
incorrectly as it moves the region forward by setting the start to the
start, not the end, of the invalidation region.
Fix this by setting finfo->dirty_offset to the end of the invalidation
region (iend).
Fixes: cce6bfa6ca0e ("netfs: Fix trimming of streaming-write folios in netfs_inval_folio()")
Closes: https://sashiko.dev/#/patchset/20260414082004.3756080-1-dhowells%40redhat.com
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://patch.msgid.link/20260512123404.719402-21-dhowells@redhat.com
cc: Paulo Alcantara <pc@manguebit.org>
cc: Matthew Wilcox <willy@infradead.org>
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'tools/testing/selftests/dm-verity/git:/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions