CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се от съседна мрежа, без особени условия, без 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: Bluetooth: l2cap: clear chan->ident on ECRED reconfiguration success l2cap_ecred_reconf_rsp() returns early on success without clearing chan->ident. Every other L2CAP response handler (l2cap_ecred_conn_rsp, l2cap_le_connect_rsp, l2cap_config_rsp) clears chan->ident after a successful transaction to prevent the channel from matching subsequent responses with the recycled ident value. A remote attacker that completed a reconfiguration as the peer can replay a failure response with the stale ident, causing the kernel to match and destroy the already-established channel via l2cap_chan_del(chan, ECONNRESET). Clear chan->ident for all matching channels on success, and harden the failure path by using l2cap_chan_hold_unless_zero() consistent with other L2CAP handlers (l2cap_le_command_rej, __l2cap_get_chan_by_ident).
Засегнати продукти
- Linux Linux: 15f02b91056253e8cdc592888f431da0731337b8 преди 59f5ecf6ad5c4db6ae81965a96156954a3b0d89a; 15f02b91056253e8cdc592888f431da0731337b8 преди ae0152d77d101c920769934fb102b18de0c6f526; 15f02b91056253e8cdc592888f431da0731337b8 преди c2afd2613fda90107c5e2fe8e855627451749c78; 15f02b91056253e8cdc592888f431da0731337b8 преди cc2b4f749de09975bfa06e58bbbad2f6acd4c79c; 15f02b91056253e8cdc592888f431da0731337b8 преди 3b5b5f423b4fd23404a393bda8adba3cd6f74ef1; 15f02b91056253e8cdc592888f431da0731337b8 преди f39049304ba655ffcbb92edbdf8c51a1f1210bed; 15f02b91056253e8cdc592888f431da0731337b8 преди 8e7977afaef37c6bd2b2654f1bce6ab40d471147; 15f02b91056253e8cdc592888f431da0731337b8 преди 00e1950716c6ed67d74777b2db286b0fa23b4be9
- Linux Linux: 5.7; преди 5.7; 5.10.259 до 5.10.*; 5.15.210 до 5.15.*; 6.1.176 до 6.1.*; 6.6.143 до 6.6.*; 6.12.93 до 6.12.*; 6.18.35 до 6.18.*; 7.0.12 до 7.0.*; от 7.1 нататък
Вид слабост
История
- 19 юли 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-63976
- https://nvd.nist.gov/vuln/detail/CVE-2026-63976
- https://git.kernel.org/stable/c/59f5ecf6ad5c4db6ae81965a96156954a3b0d89a
- https://git.kernel.org/stable/c/ae0152d77d101c920769934fb102b18de0c6f526
- https://git.kernel.org/stable/c/c2afd2613fda90107c5e2fe8e855627451749c78
- https://git.kernel.org/stable/c/cc2b4f749de09975bfa06e58bbbad2f6acd4c79c
- https://git.kernel.org/stable/c/3b5b5f423b4fd23404a393bda8adba3cd6f74ef1
- https://git.kernel.org/stable/c/f39049304ba655ffcbb92edbdf8c51a1f1210bed
- https://git.kernel.org/stable/c/8e7977afaef37c6bd2b2654f1bce6ab40d471147
- https://git.kernel.org/stable/c/00e1950716c6ed67d74777b2db286b0fa23b4be9