Log in Start free

Vulnerability · Published Sep 16, 2026 · Assigned by Linux

CVE-2026-89859scsi: qla2xxx: Zero dport diagnostics buffer to avoid info leak

Unrated

In plain English

A security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 85.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Zero dport diagnostics buffer to avoid info leak qla2x00_do_dport_diagnostics() allocates the qla_dport_diag response buffer with kmalloc_obj() (non-zeroing) and, on success, copies the full sizeof(*dd) back to user space via sg_copy_from_buffer(). The inbound sg_copy_to_buffer() only fills as many bytes as the user request payload provides, and qla26xx_dport_diagnostics() zeroes only dd->buf. The options and unused[] fields are therefore copied out uninitialized, leaking kernel heap contents to user space. Allocate with kzalloc_obj(), matching qla2x00_do_dport_diagnostics_v2().

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-89859
Debian:13linux6.12.113-1DEBIAN-CVE-2026-89859
Debian:14linux7.2.6-1DEBIAN-CVE-2026-89859
Debian:12linux-6.126.12.113-1~deb12u1DEBIAN-CVE-2026-89859
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-89859
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-89859
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-89859
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-89859
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-89859
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-89859
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-89859
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-89859
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-89859
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-89859
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-89859
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-89859
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-89859
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-89859
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-89859
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-89859
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-89859

Affected products (as reported)

VendorProductVersions
Linux Linux ec89146215d124c429bff84b498dccdc4919ffa7 – before eeef4fa993b3f962de9b45999f12ff25a5c79ce7ec89146215d124c429bff84b498dccdc4919ffa7 – before 504b177ad58c45be7e1cfa81f9b42f7f040737c5ec89146215d124c429bff84b498dccdc4919ffa7 – before c3e4c716909a053391b06a9a816c8588b652e3d2ec89146215d124c429bff84b498dccdc4919ffa7 – before 2ecc30066c2284d2ed11bbd576ec97156b384054ec89146215d124c429bff84b498dccdc4919ffa7 – before 5dfc77099c7d9fde9520a229794b0154d7ccccc1ec89146215d124c429bff84b498dccdc4919ffa7 – before d6e2411516bb95e52cb74c9c56b60ad2548a2730ec89146215d124c429bff84b498dccdc4919ffa7 – before 9fc03be982763a131913f84fe73b240ae45bca37ec89146215d124c429bff84b498dccdc4919ffa7 – before a152edab3854f01dd2daf3eaf8f32cbabdb3834e
Linux Linux 4.8

References