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Mon, 23 Mar 2026 16:30:32 +0000 Received: by quack3.suse.cz (Postfix, from userid 1000) id B42B4A0B32; Mon, 23 Mar 2026 17:30:27 +0100 (CET) From: Jan Kara To: Cc: , Jan Kara Subject: [PATCH 0/2] udf: Fix race between file type conversion and writeback Date: Mon, 23 Mar 2026 17:30:10 +0100 Message-ID: <20260323162617.2421-1-jack@suse.cz> X-Mailer: git-send-email 2.51.0 MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=336; i=jack@suse.cz; h=from:subject:message-id; bh=NO8cAxClAqGsssaMA8oeXcUMKStK7FPcCHR/7Y3gbTA=; b=owEBbQGS/pANAwAIAZydqgc/ZEDZAcsmYgBpwWqRqTyiBfqCRPOla1cB5RovA6dDtOCNqZw5B yT6LWdFtm+JATMEAAEIAB0WIQSrWdEr1p4yirVVKBycnaoHP2RA2QUCacFqkQAKCRCcnaoHP2RA 2fFGCACFb+4a5554mkaOQqvYIHqqhbX+QmSbNn2ovGjvn1r9oOdTMEeDQ5eQsKqemEatiaZjeJ1 fA0Ea8c4imJBFXTMzfrs4dvdZAD35nydURWn8efQQFsGgVdalBDom5CJPLoQ+yaZUGMt7cbpZ10 vvuuA0KqUJWlUlSuTBnHItO2IG53/omoG9u9seCkZKNcHWdGGekOxhHVwpDQDWAItOkWAGixwAs AbhXGNW7eIJHn+UILcW5toZkWQoaaFmwr/MdYgdxVbf5OPInZ5LCaVGBWZZBL6UqqooTmS4Y8ct gM/NVt9PWRUwfFKvGzCsBFniWYso7aQe7wxjzpiDb++S/7AA X-Developer-Key: i=jack@suse.cz; a=openpgp; fpr=93C6099A142276A28BBE35D815BC833443038D8C Content-Transfer-Encoding: 8bit X-Rspamd-Action: no action X-Rspamd-Queue-Id: D7229A0016 X-Stat-Signature: z5tcacc3em9f7z6pwj967n86rmyphj9e X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1774283434-289409 X-HE-Meta: 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 V9u6kUnA E3/Ve1Nhrx7faCRDxnlGw26i/KLD9NqcUMRqDz1M9PmI6QVk/Lp3VXxzB7Ysd/AFaPvqN/6UfwZMnU/AqwM6WDclL3ZvGr/RSiFFX36Exby35Fc4rIpW2Y5czN8lsuAFp8GUIGtPrngwrqjNBmZC7LWFeYMB0C1MKuYUd2rT6HwiAFfEOboGTiDRN3KkP0sGW7ptHWLr7tm8LYnoY4YH+6sTO0gCT7n0YH6ny8DIsxUC42PHdkkA/kcTEfnYVUqyq1P8LeYeAkaeR+/K6PaHL+8XjuA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, these patches fix a race between conversion of UDF file from inline format to the standard format and writeback resulting in possible memory corruption. Review/Acks are welcome in particular for the export of folio_prepare_writeback(). I'd like to push the fix to Linus soon as it's kind of nasty issue. Honza