https://db.gcve.eu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 28 Sep 2026 20:20:38 +0000 https://db.gcve.eu/vuln/cve-2025-39878 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ceph: fix crash after fscrypt_encrypt_pagecache_blocks() error</p> <p>The function move_dirty_folio_in_page_array() was created by commit ce80b76dd327 (&#34;ceph: introduce ceph_process_folio_batch() method&#34;) by moving code from ceph_writepages_start() to this function.</p> <p>This new function is supposed to return an error code which is checked by the caller (now ceph_process_folio_batch()), and on error, the caller invokes redirty_page_for_writepage() and then breaks from the loop.</p> <p>However, the refactoring commit has gone wrong, and it by accident, it always returns 0 (= success) because it first NULLs the pointer and then returns PTR_ERR(NULL) which is always 0. This means errors are silently ignored, leaving NULL entries in the page array, which may later crash the kernel.</p> <p>The simple solution is to call PTR_ERR() before clearing the pointer.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ceph: fix crash after fscrypt_encrypt_pagecache_blocks() error</p> <p>The function move_dirty_folio_in_page_array() was created by commit ce80b76dd327 (&#34;ceph: introduce ceph_process_folio_batch() method&#34;) by moving code from ceph_writepages_start() to this function.</p> <p>This new function is supposed to return an error code which is checked by the caller (now ceph_process_folio_batch()), and on error, the caller invokes redirty_page_for_writepage() and then breaks from the loop.</p> <p>However, the refactoring commit has gone wrong, and it by accident, it always returns 0 (= success) because it first NULLs the pointer and then returns PTR_ERR(NULL) which is always 0. This means errors are silently ignored, leaving NULL entries in the page array, which may later crash the kernel.</p> <p>The simple solution is to call PTR_ERR() before clearing the pointer.</p> https://db.gcve.eu/vuln/cve-2025-39878