{"id":"CVE-2026-89849","published":"2026-09-16T11:16:52.497","lastModified":"2026-09-16T15:18:13.230","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Reject non-SCSI SRB on status IOCB fast path\n\nqla2x00_status_entry() filters out non-TYPE_SRB entries and the\nSRB_NVME_CMD, SRB_BIDI_CMD and SRB_TM_CMD types, then falls through to a\nSCSI fast path that assumes the command is an SRB_SCSI_CMD. The first\nthing on that path, qla_chk_edif_rx_sa_delete_pending(), and the\nsubsequent handling both evaluate GET_CMD_SP(sp), i.e. sp->u.scmd.cmd.\n\nThe srb u union overlays the SCSI command pointer with other command\nlayouts (bsg_job, iocb_cmd). If firmware delivers an unexpected\nSTATUS_TYPE IOCB for a non-SCSI handle, sp->u.scmd.cmd can read as a\nnon-NULL garbage pointer, bypassing the NULL checks in\nqla_chk_edif_rx_sa_delete_pending() and at the cp == NULL test, and\nleading to a wild pointer dereference.\n\nReject any SRB whose type is not SRB_SCSI_CMD before entering the fast\npath. The outstanding_cmds slot is left untouched so a genuinely\nnon-SCSI command still completes through its proper handler.","cvssScore":8.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/0f41d07d72f2245208c45374ca8d0a1846cad667","tags":[]},{"url":"https://git.kernel.org/stable/c/29f1f9ad9e354cd0b6e4f6fc75ba09162d6a04d9","tags":[]},{"url":"https://git.kernel.org/stable/c/8f0e31e7a41376abe7d6ca7cbee07fcf9de071e6","tags":[]},{"url":"https://git.kernel.org/stable/c/9204fb0888374083be74f799049649a17eab4191","tags":[]},{"url":"https://git.kernel.org/stable/c/b7418198b45b327194b97f856fe8ea8daa91f3fd","tags":[]},{"url":"https://git.kernel.org/stable/c/e38041b47c29316ba79b645e2ae0b713d216b1db","tags":[]},{"url":"https://git.kernel.org/stable/c/e93aa3c5125d9a4352ac0fa8ba4a7f8f87881805","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"This vulnerability in the Linux kernel's qla2xxx driver allows an attacker to cause a wild pointer dereference by sending a non-SCSI SRB with a non-null garbage pointer, potentially leading to a denial of service or other kernel crashes.","exploitability":"Exploitation requires sending a crafted non-SCSI SRB to the affected driver, which may be difficult if the network or device is not exposed to untrusted entities.","blast_radius":"If exploited, the impact is limited to the local system, potentially causing a denial of service or kernel panic.","remediation":"Upgrade to the latest kernel version 6.2.0 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["kernel","denial-of-service","local-privilege-escalation"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-30T09:16:16.187Z"}}