CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix error cleanup in xe_exec_queue_create_ioctl() Two error handling issues exist in xe_exec_queue_create_ioctl(): 1. When xe_hw_engine_group_add_exec_queue() fails, the error path jumps to put_exec_queue which skips xe_exec_queue_kill(). If the VM is in preempt fence mode, xe_vm_add_compute_exec_queue() has already added the queue to the VM's compute exec queue list. Skipping the kill leaves the queue on that list, leading to a dangling pointer after the queue is freed. 2. When xa_alloc() fails after xe_hw_engine_group_add_exec_queue() has succeeded, the error path does not call xe_hw_engine_group_del_exec_queue() to remove the queue from the hw engine group list. The queue is then freed while still linked into the hw engine group, causing a use-after-free. Fix both by: - Changing the xe_hw_engine_group_add_exec_queue() failure path to jump to kill_exec_queue so that xe_exec_queue_kill() properly removes the queue from the VM's compute list. - Adding a del_hw_engine_group label before kill_exec_queue for the xa_alloc() failure path, which removes the queue from the hw engine group before proceeding with the rest of the cleanup. (cherry picked from commit 37c831f401746a45d510b312b0ed7a77b1e06ec8)
Засегнати продукти
- Linux Linux: 7970cb36966c9b9183255dc097ae0446300eebcf преди f93b00161213a0fe9f7ff1d8498ee5ca9e0a5c43; 7970cb36966c9b9183255dc097ae0446300eebcf преди 753b149d5a433eb19e0c1b0eb4526a6e26120d1f; 7970cb36966c9b9183255dc097ae0446300eebcf преди 1be55646d8a2035343b012dcb12210db7bb8b056; 7970cb36966c9b9183255dc097ae0446300eebcf преди f3cc22d4df3ed58439ea7e21daa54c3608e03b78
- Linux Linux: 6.12; преди 6.12; 6.12.91 до 6.12.*; 6.18.33 до 6.18.*; 7.0.10 до 7.0.*; от 7.1 нататък
Red Hat: още 5 продукта, добавени от Red Hat
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8
Вид слабост
История
- 24 юни 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-52976
- https://nvd.nist.gov/vuln/detail/CVE-2026-52976
- https://git.kernel.org/stable/c/f93b00161213a0fe9f7ff1d8498ee5ca9e0a5c43
- https://git.kernel.org/stable/c/753b149d5a433eb19e0c1b0eb4526a6e26120d1f
- https://git.kernel.org/stable/c/1be55646d8a2035343b012dcb12210db7bb8b056
- https://git.kernel.org/stable/c/f3cc22d4df3ed58439ea7e21daa54c3608e03b78
- https://access.redhat.com/security/cve/CVE-2026-52976
- https://bugzilla.redhat.com/show_bug.cgi?id=2492284
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52976.json
- https://access.redhat.com/errata/RHSA-2026:52764
- https://access.redhat.com/errata/RHSA-2026:42919
- https://access.redhat.com/errata/RHSA-2026:52667
- https://access.redhat.com/errata/RHSA-2026:45192