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CVE-2026-98694: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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Атакува се

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Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Fix KASAN reported use-after-free when request is canceled Alan reported that when doing stress testing sometimes KASAN notices use-after-free during control channel operation (stripped down keeping the relevant parts): BUG: KASAN: slab-use-after-free in tb_cfg_request_sync+0x240/0x250 [thunderbolt] Read of size 24 at addr ffff88811067f290 by task kworker/u40:2/1760 <TASK> tb_cfg_request_sync+0x240/0x250 [thunderbolt] tb_cfg_read_raw+0x367/0x510 [thunderbolt] tb_cfg_read+0xec/0x240 [thunderbolt] tb_port_get_link_generation+0x258/0x420 [thunderbolt] tb_usb3_consumed_bandwidth+0x1c1/0x2c0 [thunderbolt] tb_tunnel_consumed_bandwidth+0xfd/0x910 [thunderbolt] tb_available_bandwidth+0x5f2/0xeb0 [thunderbolt] tb_recalc_estimated_bandwidth+0x2a0/0x1bc0 [thunderbolt] tb_handle_dp_bandwidth_request+0x1897/0x5e20 [thunderbolt] process_one_work+0x675/0x1230 worker_thread+0x5e6/0xf70 kthread+0x365/0x470 ret_from_fork+0x54d/0x710 ret_from_fork_asm+0x1a/0x30 </TASK> Allocated by task 1760: __kmalloc_cache_noprof+0x1ee/0x550 tb_cfg_read_raw+0x1d3/0x510 [thunderbolt] tb_cfg_read+0xec/0x240 [thunderbolt] tb_port_get_link_generation+0x258/0x420 [thunderbolt] tb_usb3_consumed_bandwidth+0x1c1/0x2c0 [thunderbolt] tb_tunnel_consumed_bandwidth+0xfd/0x910 [thunderbolt] tb_available_bandwidth+0x5f2/0xeb0 [thunderbolt] tb_recalc_estimated_bandwidth+0x2a0/0x1bc0 [thunderbolt] tb_handle_dp_bandwidth_request+0x1897/0x5e20 [thunderbolt] process_one_work+0x675/0x1230 worker_thread+0x5e6/0xf70 kthread+0x365/0x470 ret_from_fork+0x54d/0x710 ret_from_fork_asm+0x1a/0x30 Freed by task 926: kfree+0x18f/0x4a0 tb_cfg_request_put+0xb7/0xe0 [thunderbolt] tb_cfg_request_work+0x82/0x120 [thunderbolt] process_one_work+0x675/0x1230 worker_thread+0x5e6/0xf70 kthread+0x365/0x470 ret_from_fork+0x54d/0x710 ret_from_fork_asm+0x1a/0x30 Second to last pot

    Засегнати продукти

    • Linux Linux: d7f781bfdbf4eb7c5706c9974b8bf6d3c82e69c1 преди 94358146389d985b809898cc23b1030ff240a25d; d7f781bfdbf4eb7c5706c9974b8bf6d3c82e69c1 преди 9594550e95bcc362027b7ad5f0d5665110f8a7d8; d7f781bfdbf4eb7c5706c9974b8bf6d3c82e69c1 преди 0dc4296ac0910d3a43d9e105226ace463e475304; d7f781bfdbf4eb7c5706c9974b8bf6d3c82e69c1 преди b70b9c41f240c42bf6e728034537c0fe60c16ef4; d7f781bfdbf4eb7c5706c9974b8bf6d3c82e69c1 преди 71b3c517e02af2c46ad58d4b3706b7c3cb24936d; d7f781bfdbf4eb7c5706c9974b8bf6d3c82e69c1 преди f18faa3d3b810d60a3005ae1b1d1866faa67d343; d7f781bfdbf4eb7c5706c9974b8bf6d3c82e69c1 преди 08287212b622039212c972806f896f078dfd28e2; d7f781bfdbf4eb7c5706c9974b8bf6d3c82e69c1 преди a02188ddc24b7872f0c5e0c5873f827318717803
    • Linux Linux: 4.13; преди 4.13; 5.10.273 до 5.10.*; 5.15.224 до 5.15.*; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.113 до 6.12.*; 6.18.56 до 6.18.*; 7.2.10 до 7.2.*; 7.3 до *

    История

    • 18 октомври 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-98694: Linux | freedomonline.bg