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CVE-2026-89861: Linux

8.1

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 по мрежата, при специфични условия, без вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition() In the format 1 path, the virtual port is located on ha->vp_list while holding vport_slock, but the lock is dropped before vp is used: qla_update_host_map() is called and VP_IDX_ACQUIRED/REGISTER_FC4_NEEDED/ REGISTER_FDMI_NEEDED are set on vp. No reference is taken across that window, so a concurrent qla24xx_deallocate_vp_id() can tear the vport down and free it, leading to a use-after-free. Take a vport reference (vref_count) under vport_slock when the matching vp is found, and drop it after the last use of vp. qla24xx_deallocate_vp_id() waits for vref_count to reach zero before unlinking and freeing the vport, so the pointer stays valid. This matches the reference idiom already used by the other ha->vp_list traversals.

    Засегнати продукти

    • Linux Linux: 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 преди d09ef32af1e05d79f29b460521a20bc4e6fd2ecf; 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 преди 4b7f0a95bfeb1d3673da4c29bbe9872a61bc1a69; 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 преди 267533b28ddf2c9223d30ad7e6960fa9e936428e; 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 преди f8d2eb510c063a8ca79a5dc766a4303d3925fe83; 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 преди f6b3bcc7cb2f4c37464958b9fd97dc7f185ea297; 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 преди 47272152a13d202d98496208f9bf382c1cf4d4fb; 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 преди d556f899964d184e6cb788f3fa9dcddcafe1ab2d; 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 преди 793cedee296fd819bfadc2a7ec4d52faf9c09a0a
    • Linux Linux: 2.6.23; преди 2.6.23; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.51 до 6.18.*; 7.2.5 до 7.2.*; от 7.3 нататък

    История

    • 16 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-89861: Linux | freedomonline.bg