{"id":"CVE-2026-89859","published":"2026-09-16T11:16:53.830","lastModified":"2026-09-21T14:17:27.630","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Zero dport diagnostics buffer to avoid info leak\n\nqla2x00_do_dport_diagnostics() allocates the qla_dport_diag response\nbuffer with kmalloc_obj() (non-zeroing) and, on success, copies the full\nsizeof(*dd) back to user space via sg_copy_from_buffer(). The inbound\nsg_copy_to_buffer() only fills as many bytes as the user request payload\nprovides, and qla26xx_dport_diagnostics() zeroes only dd->buf. The\noptions and unused[] fields are therefore copied out uninitialized,\nleaking kernel heap contents to user space.\n\nAllocate with kzalloc_obj(), matching qla2x00_do_dport_diagnostics_v2().","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/9fc03be982763a131913f84fe73b240ae45bca37","tags":[]},{"url":"https://git.kernel.org/stable/c/a152edab3854f01dd2daf3eaf8f32cbabdb3834e","tags":[]},{"url":"https://git.kernel.org/stable/c/d6e2411516bb95e52cb74c9c56b60ad2548a2730","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}