CVE-2026-89844: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Hold vport_slock for host map update in report ID acquisition qla24xx_report_id_acquisition() format-1 handling drops vport_slock after taking the vport reference and then calls qla_update_host_map() without the lock. That reaches qla_update_vp_map(), which mutates the ha->host_map btree via btree_insert32()/btree_update32()/btree_remove32() and is documented to require vport_slock to be held by the caller. Running it unlocked can race concurrent host_map updates and corrupt the btree. The format-2 path in the same function already wraps its host_map update (SET_AL_PA) in vport_slock; the format-1 path is the lone outlier. Hold vport_slock across the format-1 qla_update_host_map() call to honor the documented locking contract. The vref_count taken in the loop keeps the vport valid, so this only adds the missing host_map serialization.

Засегнати продукти

• Linux Linux: 430eef03a763e5e76a371ba6d02779ae4a64b6ea преди e8f1b0cb9782338c6341ceed816e9c1243743cdd; 430eef03a763e5e76a371ba6d02779ae4a64b6ea преди 6ed66e2a67bbd22877008ff9aa64bd574a7fc011; 430eef03a763e5e76a371ba6d02779ae4a64b6ea преди 776e4e8cbcf155302f430ce9793d1502e3c113a0; 430eef03a763e5e76a371ba6d02779ae4a64b6ea преди 7d0b3f745efb24c0aac5e06b49b3420bc65d23b9; 430eef03a763e5e76a371ba6d02779ae4a64b6ea преди 7944039ba9cb5c3a935d17c91004e3b8649ff58e
• Linux Linux: 6.3; преди 6.3; 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

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-89844
• https://nvd.nist.gov/vuln/detail/CVE-2026-89844
• https://git.kernel.org/stable/c/e8f1b0cb9782338c6341ceed816e9c1243743cdd
• https://git.kernel.org/stable/c/6ed66e2a67bbd22877008ff9aa64bd574a7fc011
• https://git.kernel.org/stable/c/776e4e8cbcf155302f430ce9793d1502e3c113a0
• https://git.kernel.org/stable/c/7d0b3f745efb24c0aac5e06b49b3420bc65d23b9
• https://git.kernel.org/stable/c/7944039ba9cb5c3a935d17c91004e3b8649ff58e