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CVE-2026-31502: Linux, грешка в паметта

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.

CVE радар: още уязвимости от този вид

  • Експлоатация: няма данни за експлоатация
  • Атаката не може да се автоматизира

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: team: fix header_ops type confusion with non-Ethernet ports Similar to commit 950803f72547 ("bonding: fix type confusion in bond_setup_by_slave()") team has the same class of header_ops type confusion. For non-Ethernet ports, team_setup_by_port() copies port_dev->header_ops directly. When the team device later calls dev_hard_header() or dev_parse_header(), these callbacks can run with the team net_device instead of the real lower device, so netdev_priv(dev) is interpreted as the wrong private type and can crash. The syzbot report shows a crash in bond_header_create(), but the root cause is in team: the topology is gre -> bond -> team, and team calls the inherited header_ops with its own net_device instead of the lower device, so bond_header_create() receives a team device and interprets netdev_priv() as bonding private data, causing a type confusion crash. Fix this by introducing team header_ops wrappers for create/parse, selecting a team port under RCU, and calling the lower device callbacks with port->dev, so each callback always sees the correct net_device context. Also pass the selected lower device to the lower parse callback, so recursion is bounded in stacked non-Ethernet topologies and parse callbacks always run with the correct device context.

Засегнати продукти

  • Linux Linux: 1d76efe1577b4323609b1bcbfafa8b731eda071a преди c6e255b0ce30cdea37e34d6d87e2212eb8c7f7a4; 1d76efe1577b4323609b1bcbfafa8b731eda071a преди 420e5aad7ba89e8f79e2dc8327b0c0c24c1c1d53; 1d76efe1577b4323609b1bcbfafa8b731eda071a преди 6d3161fa3eee64d46b766fb0db33ec7f300ef52d; 1d76efe1577b4323609b1bcbfafa8b731eda071a преди 0a7468ed49a6b65d34abcc6eb60e15f7f6d34da0; 1d76efe1577b4323609b1bcbfafa8b731eda071a преди 20491d384d973a63fbdaf7a71e38d69b0659ea55; 1d76efe1577b4323609b1bcbfafa8b731eda071a преди 425000dbf17373a4ab8be9428f5dc055ef870a56
  • Linux Linux: 3.7; преди 3.7; 6.1.191 до 6.1.*; 6.6.145 до 6.6.*; 6.12.80 до 6.12.*; 6.18.21 до 6.18.*; 6.19.11 до 6.19.*; от 7.0 нататък

Вид слабост

История

  • 22 април 2026 Публикувано

Други уязвимости в Linux Linux

Първоизточници

CVE-2026-31502: Linux, грешка в паметта | freedomonline.bg