{"id":"CVE-2026-89861","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-89861","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition()\n\nIn the format 1 path, the virtual port is…","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition()\n\nIn the format 1 path, the virtual port is located on ha->vp_list while\nholding vport_slock, but the lock is dropped before vp is used:\nqla_update_host_map() is called and VP_IDX_ACQUIRED/REGISTER_FC4_NEEDED/\nREGISTER_FDMI_NEEDED are set on vp. No reference is taken across that\nwindow, so a concurrent qla24xx_deallocate_vp_id() can tear the vport\ndown and free it, leading to a use-after-free.\n\nTake a vport reference (vref_count) under vport_slock when the matching\nvp is found, and drop it after the last use of\nvp. qla24xx_deallocate_vp_id() waits for vref_count to reach zero before\nunlinking and freeing the vport, so the pointer stays valid. This\nmatches the reference idiom already used by the other ha->vp_list\ntraversals.","published":"2026-09-16T11:16:54.100","modified":"2026-09-16T11:16:54.100","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/267533b28ddf2c9223d30ad7e6960fa9e936428e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/47272152a13d202d98496208f9bf382c1cf4d4fb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4b7f0a95bfeb1d3673da4c29bbe9872a61bc1a69"},{"type":"WEB","url":"https://git.kernel.org/stable/c/793cedee296fd819bfadc2a7ec4d52faf9c09a0a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d09ef32af1e05d79f29b460521a20bc4e6fd2ecf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d556f899964d184e6cb788f3fa9dcddcafe1ab2d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f6b3bcc7cb2f4c37464958b9fd97dc7f185ea297"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f8d2eb510c063a8ca79a5dc766a4303d3925fe83"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-16T11:16:54.100"}}