7.8
CVSS 3.1
Няма данни
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Няма потвърждение
Атакува се
Няма данни
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: procfs: fix possible double mmput() in do_procmap_query() When user provides incorrectly sized buffer for build ID for PROCMAP_QUERY we return with -ENAMETOOLONG error. After recent changes this condition happens later, after we unlocked mmap_lock/per-VMA lock and did mmput(), so original goto out is now wrong and will double-mmput() mm_struct. Fix by jumping further to clean up only vm_file and name_buf.
Засегнати продукти
- Linux Linux: b9b97e6aeb534315f9646b2090d1a5024c6a4e82 преди f9fe092084cd04deea18747f58a2304026e76aaa; cbc03ce3e6ce7e21214c3f02218213574c1a2d08 преди 8adaff87db143583e08eec4f4e7788f1ef8af94d; b5cbacd7f86f4f62b8813688c8e73be94e8e1951 преди 90f5e87c9b75833b9ef3a4415b92c0247f28ab2f; b5cbacd7f86f4f62b8813688c8e73be94e8e1951 преди 61dc9f776705d6db6847c101b98fa4f0e9eb6fa3; 6.12.70 преди 6.12.75; 6.18.10 преди 6.18.16
- Linux Linux: 6.19; преди 6.19; 6.12.75 до 6.12.*; 6.18.16 до 6.18.*; 6.19.6 до 6.19.*; 7.0 до *
- Red Hat Red Hat Enterprise Linux 10
- Red Hat Red Hat Enterprise Linux 6
- Red Hat Red Hat Enterprise Linux 7
- Red Hat Red Hat Enterprise Linux 8
- Red Hat Red Hat Enterprise Linux 9
Вид слабост
История
- 6 май 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-43178
- https://nvd.nist.gov/vuln/detail/CVE-2026-43178
- https://git.kernel.org/stable/c/f9fe092084cd04deea18747f58a2304026e76aaa
- https://git.kernel.org/stable/c/8adaff87db143583e08eec4f4e7788f1ef8af94d
- https://git.kernel.org/stable/c/90f5e87c9b75833b9ef3a4415b92c0247f28ab2f
- https://git.kernel.org/stable/c/61dc9f776705d6db6847c101b98fa4f0e9eb6fa3
- https://access.redhat.com/security/cve/CVE-2026-43178
- https://bugzilla.redhat.com/show_bug.cgi?id=2467227
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43178.json