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CVE-2026-89846: Linux

9.1

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, 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: Bound rsp_info_len to avoid OOB sense-data read In qla2x00_status_entry(), the FWI2 status path advances sense_data and shrinks par_sense_len by rsp_info_len: if (IS_FWI2_CAPABLE(ha)) { sense_data += rsp_info_len; par_sense_len -= rsp_info_len; } rsp_info_len is a 32-bit value taken directly from the target's FCP response (sf.rsp_data_len), while par_sense_len is the IOCB data area size (28 bytes for 24xx, 60 bytes for 29xx). A hostile or buggy target reporting an rsp_info_len larger than par_sense_len makes the unsigned subtraction underflow to a huge value and advances sense_data out of bounds. The underflowed par_sense_len then defeats the cap in qla2x00_handle_sense(): if (sense_len > par_sense_len) sense_len = par_sense_len; memcpy(cp->sense_buffer, sense_data, sense_len); so the memcpy reads up to SCSI_SENSE_BUFFERSIZE bytes from the out-of-bounds sense_data pointer, leaking adjacent response-ring/heap memory into the command's sense buffer. Clamp rsp_info_len to par_sense_len before the subtraction so par_sense_len can never underflow and sense_data stays within the IOCB data area. The fix sits before the comp_status switch, covering both qla2x00_handle_sense() call sites.

    Засегнати продукти

    • Linux Linux: 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 преди 125b12861c726e58448bb95d55b04851fb131d1f; 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 преди e57ace988bda5693f7b3645f652ea4b4220870ee; 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 преди 6b08c0cb110a1fba92f99d655020198489699815; 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 преди be75ab791c9b3baca66c70ce03443afebc83acda; 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 преди ebc41dfc59d190956e0113e8bd90c28f6f21e8b9; 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 преди d7f7746ff031ae45724881261804f4bf5317c985; 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 преди f6e8977bce887481b2b2b0e2e14a791270741cfb; 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 преди ca6d880d6c70cb7946e7b3e05d7285f271b6d99e
    • Linux Linux: 2.6.36; преди 2.6.36; 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-2026-89846: Linux | freedomonline.bg