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.
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: slip: remove slip_hangup() to fix use-after-free in slip_receive_buf() Jaeyoung Chung and Eulgyu Kim reported a slab-use-after-free read in slip_receive_buf() when racing against tty hangup. tty_ldisc_hangup() calls ld->ops->hangup() while holding only a read lock on tty->ldisc_sem (via tty_ldisc_ref()). Because slip_hangup() simply called slip_close(), it ran concurrently with reader functions such as slip_receive_buf(). slip_close() unregisters and frees the net device and its private struct slip, causing concurrent reader threads in slip_receive_buf() to dereference freed memory. Line discipline close() is already guaranteed to be called under the write lock of tty->ldisc_sem during hangup processing (in tty_ldisc_reinit() or tty_ldisc_kill()). Remove slip_hangup() so teardown is serialized cleanly by slip_close().
Засегнати продукти
- Linux Linux: 5342b77c4123ba39f911d92a813295fb3bb21f69 преди 9a3b1edff1ecb47d323f2506b3ffc22178acd1c6; 5342b77c4123ba39f911d92a813295fb3bb21f69 преди a2dbac3fb03b4427ccf057debc83fc61ee102529; 5342b77c4123ba39f911d92a813295fb3bb21f69 преди de1f978c0f6ab42b28192d74dc59af52fdc76135; 5342b77c4123ba39f911d92a813295fb3bb21f69 преди ddbc5dc5a2e29b3934da09c1ba3c930fd8a40fd6; 5342b77c4123ba39f911d92a813295fb3bb21f69 преди a540a49fcca59d1c92c3a6462e67ca21676a88df; 5342b77c4123ba39f911d92a813295fb3bb21f69 преди 23c53269f2baaedf2d92784290cb9ef6db2a3bce
- Linux Linux: 2.6.32; преди 2.6.32; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък
История
- 17 септември 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-90057
- https://nvd.nist.gov/vuln/detail/CVE-2026-90057
- https://git.kernel.org/stable/c/9a3b1edff1ecb47d323f2506b3ffc22178acd1c6
- https://git.kernel.org/stable/c/a2dbac3fb03b4427ccf057debc83fc61ee102529
- https://git.kernel.org/stable/c/de1f978c0f6ab42b28192d74dc59af52fdc76135
- https://git.kernel.org/stable/c/ddbc5dc5a2e29b3934da09c1ba3c930fd8a40fd6
- https://git.kernel.org/stable/c/a540a49fcca59d1c92c3a6462e67ca21676a88df
- https://git.kernel.org/stable/c/23c53269f2baaedf2d92784290cb9ef6db2a3bce