https://db.gcve.eu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 01 Oct 2026 09:35:43 +0000 https://db.gcve.eu/vuln/ghsa-pg9f-39pc-qf8g <p><strong>Affected:</strong> crates.io: crossbeam-channel</p> <p>The internal `Channel` type&#39;s `Drop` method has a race which could, in some circumstances, lead to a double-free. This could result in memory corruption.</p> <p>Quoting from the [upstream description in merge request \#1187](https://github.com/crossbeam-rs/crossbeam/pull/1187#issue-2980761131):</p> <p>&gt; The problem lies in the fact that `dicard_all_messages` contained two paths that could lead to `head.block` being read but only one of them would swap the value. This meant that `dicard_all_messages` could end up observing a non-null block pointer (and therefore attempting to free it) without setting `head.block` to null. This would then lead to `Channel::drop` making a second attempt at dropping the same pointer.</p> <p>The bug was introduced while fixing a memory leak, in upstream [MR \#1084](https://github.com/crossbeam-rs/crossbeam/pull/1084), first published in 0.5.12.</p> <p>The fix is in upstream [MR \#1187](https://github.com/crossbeam-rs/crossbeam/pull/1187) and has been published in 0.5.15</p> <p><strong>Affected:</strong> crates.io: crossbeam-channel</p> <p>The internal `Channel` type&#39;s `Drop` method has a race which could, in some circumstances, lead to a double-free. This could result in memory corruption.</p> <p>Quoting from the [upstream description in merge request \#1187](https://github.com/crossbeam-rs/crossbeam/pull/1187#issue-2980761131):</p> <p>&gt; The problem lies in the fact that `dicard_all_messages` contained two paths that could lead to `head.block` being read but only one of them would swap the value. This meant that `dicard_all_messages` could end up observing a non-null block pointer (and therefore attempting to free it) without setting `head.block` to null. This would then lead to `Channel::drop` making a second attempt at dropping the same pointer.</p> <p>The bug was introduced while fixing a memory leak, in upstream [MR \#1084](https://github.com/crossbeam-rs/crossbeam/pull/1084), first published in 0.5.12.</p> <p>The fix is in upstream [MR \#1187](https://github.com/crossbeam-rs/crossbeam/pull/1187) and has been published in 0.5.15</p> https://db.gcve.eu/vuln/ghsa-pg9f-39pc-qf8g