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CVE-2026-89849: Linux

8.8

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 от съседна мрежа, без особени условия, без вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Reject non-SCSI SRB on status IOCB fast path qla2x00_status_entry() filters out non-TYPE_SRB entries and the SRB_NVME_CMD, SRB_BIDI_CMD and SRB_TM_CMD types, then falls through to a SCSI fast path that assumes the command is an SRB_SCSI_CMD. The first thing on that path, qla_chk_edif_rx_sa_delete_pending(), and the subsequent handling both evaluate GET_CMD_SP(sp), i.e. sp->u.scmd.cmd. The srb u union overlays the SCSI command pointer with other command layouts (bsg_job, iocb_cmd). If firmware delivers an unexpected STATUS_TYPE IOCB for a non-SCSI handle, sp->u.scmd.cmd can read as a non-NULL garbage pointer, bypassing the NULL checks in qla_chk_edif_rx_sa_delete_pending() and at the cp == NULL test, and leading to a wild pointer dereference. Reject any SRB whose type is not SRB_SCSI_CMD before entering the fast path. The outstanding_cmds slot is left untouched so a genuinely non-SCSI command still completes through its proper handler.

    Засегнати продукти

    • Linux Linux: dd30706e73b70d67e88fdaca688db7a3374fd5de преди 9204fb0888374083be74f799049649a17eab4191; dd30706e73b70d67e88fdaca688db7a3374fd5de преди b7418198b45b327194b97f856fe8ea8daa91f3fd; dd30706e73b70d67e88fdaca688db7a3374fd5de преди 8f0e31e7a41376abe7d6ca7cbee07fcf9de071e6; dd30706e73b70d67e88fdaca688db7a3374fd5de преди e38041b47c29316ba79b645e2ae0b713d216b1db; dd30706e73b70d67e88fdaca688db7a3374fd5de преди e93aa3c5125d9a4352ac0fa8ba4a7f8f87881805; dd30706e73b70d67e88fdaca688db7a3374fd5de преди 29f1f9ad9e354cd0b6e4f6fc75ba09162d6a04d9; dd30706e73b70d67e88fdaca688db7a3374fd5de преди 0f41d07d72f2245208c45374ca8d0a1846cad667
    • Linux Linux: 5.15; преди 5.15; 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-2026-89849: Linux | freedomonline.bg