CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: net: do not send ICMP/NDISC Redirects when peer allocation fails When inet_getpeer_v4() or inet_getpeer_v6() fails to allocate a peer entry under memory pressure or tree size caps, redirect handlers previously fell back to sending un-rate-limited ICMP/NDISC Redirect messages. In IPv4, ip_rt_send_redirect() called icmp_send() directly when peer == NULL. In IPv6, ip6_forward() and ndisc_send_redirect() passed a NULL peer into inet_peer_xrlim_allow(), which returned true when peer == NULL. Because ICMP/NDISC Redirects are not part of the default global rate limit mask (sysctl_icmp_ratemask), sending redirects when peer == NULL creates an un-rate-limited ICMP packet storm. Fix this by failing closed in ip_rt_send_redirect(), ip6_forward(), and ndisc_send_redirect() when peer is NULL.
Засегнати продукти
- Linux Linux: 92d8682926342d2b6aa5b2ecc02221e00e1573a0 преди c0adf8b4247bcc5a145a25c1929006eb392580bb; 92d8682926342d2b6aa5b2ecc02221e00e1573a0 преди f5ecaa7ea7686fa7ecdb6affc9d3a9a42e4524b1; 92d8682926342d2b6aa5b2ecc02221e00e1573a0 преди 21666f7af49a90ef44d474916b8ef4402dfd74f5; 92d8682926342d2b6aa5b2ecc02221e00e1573a0 преди 5ec5f00fc606a6df8434948c4552b3cb1176595d; 92d8682926342d2b6aa5b2ecc02221e00e1573a0 преди 828f6670d110ff2bf44c743037b38badc315704c; 92d8682926342d2b6aa5b2ecc02221e00e1573a0 преди dbc3791e3b2472e1ccc08947e0f83b443470ff4f
- Linux Linux: 2.6.39; преди 2.6.39; 6.1.183 до 6.1.*; 6.6.151 до 6.6.*; 6.12.103 до 6.12.*; 6.18.44 до 6.18.*; 7.1.8 до 7.1.*; 7.2 до *
История
- 15 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-74550
- https://nvd.nist.gov/vuln/detail/CVE-2026-74550
- https://git.kernel.org/stable/c/c0adf8b4247bcc5a145a25c1929006eb392580bb
- https://git.kernel.org/stable/c/f5ecaa7ea7686fa7ecdb6affc9d3a9a42e4524b1
- https://git.kernel.org/stable/c/21666f7af49a90ef44d474916b8ef4402dfd74f5
- https://git.kernel.org/stable/c/5ec5f00fc606a6df8434948c4552b3cb1176595d
- https://git.kernel.org/stable/c/828f6670d110ff2bf44c743037b38badc315704c
- https://git.kernel.org/stable/c/dbc3791e3b2472e1ccc08947e0f83b443470ff4f