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Unscored CVE-2026-23059 EUVD-2026-5485GHSA-6mm8-fcwp-3g49

scsi: qla2xxx: Sanitize payload size to prevent member overflow

Published Feb 4, 2026 · Updated May 11, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: kernel Package: linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.8 Package: linux-aws-6.14 Package: linux-aws-6.17 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-aws-6.8 Package: linux-aws-fips Package: linux-azure Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.8 Package: linux-azure-6.11 Package: linux-azure-6.14 Package: linux-azure-6.17 Package: linux-azure-6.2 Package: linux-azure-6.5 Package: linux-azure-6.8 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.14 Package: linux-azure-fde-6.2 Package: linux-azure-fde-6.8 Package: linux-azure-fips Package: linux-azure-nvidia Package: linux-azure-nvidia-6.14 Package: linux-bluefield Package: linux-fips Package: linux-gcp Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.8 Package: linux-gcp-6.11 Package: linux-gcp-6.14 Package: linux-gcp-6.17 Package: linux-gcp-6.2 Package: linux-gcp-6.5 Package: linux-gcp-6.8 Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.15 Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.19 Package: linux-hwe-5.8 Package: linux-hwe-6.11 Package: linux-hwe-6.14 Package: linux-hwe-6.17 Package: linux-hwe-6.2 Package: linux-hwe-6.5 Package: linux-hwe-6.8 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-6.8 Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-lowlatency Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.11 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-lowlatency-hwe-6.8 Package: linux-nvidia Package: linux-nvidia-6.11 Package: linux-nvidia-6.17 Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 Package: linux-nvidia-6.8 Package: linux-nvidia-lowlatency Package: linux-nvidia-tegra Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.17 Package: linux-oem-5.6 Package: linux-oem-6.0 Package: linux-oem-6.1 Package: linux-oem-6.11 Package: linux-oem-6.14 Package: linux-oem-6.17 Package: linux-oem-6.5 Package: linux-oem-6.8 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.3 Package: linux-oracle-5.8 Package: linux-oracle-6.14 Package: linux-oracle-6.17 Package: linux-oracle-6.5 Package: linux-oracle-6.8 Package: linux-raspi Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-realtime-6.14 Package: linux-realtime-6.17 Package: linux-realtime-6.8 Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-riscv-6.14 Package: linux-riscv-6.17 Package: linux-riscv-6.5 Package: linux-riscv-6.8 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-starfive-6.5 Package: linux-vmware Package: linux-xilinx Platform: Linux Ecosystem: Azure Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

In the Linux kernel, the following vulnerability has been resolved:

scsi: qla2xxx: Sanitize payload size to prevent member overflow

In qla27xx_copy_fpin_pkt() and qla27xx_copy_multiple_pkt(), the frame_size
reported by firmware is used to calculate the copy length into
item->iocb. However, the iocb member is defined as a fixed-size 64-byte
array within struct purex_item.

If the reported frame_size exceeds 64 bytes, subsequent memcpy calls will
overflow the iocb member boundary. While extra memory might be allocated,
this cross-member write is unsafe and triggers warnings under
CONFIG_FORTIFY_SOURCE.

Fix this by capping total_bytes to the size of the iocb member (64 bytes)
before allocation and copying. This ensures all copies remain within the
bounds of the destination structure member.

Affected products

VendorProductAffectedFixed
Linux Linux 6.6 6.6.122

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 linux 6.18.8-1 —
Debian 13 linux 6.12.69-1 DSA-6126-1

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu Nvidia-BlueField 24.04 LTS linux-bluefield 6.8.0-1022.26 —
Ubuntu 25.10 linux +8 No fix yet —
Ubuntu 24.04 LTS linux 6.8.0-117.117 USN-8278-1
Ubuntu 24.04 LTS linux-aws 6.8.0-1055.58 USN-8278-1
Ubuntu 24.04 LTS linux-azure 6.8.0-1056.62 USN-8278-2
Ubuntu 24.04 LTS linux-azure-6.17 6.17.0-1021.21~24.04.1 USN-8604-1
Ubuntu 24.04 LTS linux-azure-fde 6.8.0-1058.65 —
Ubuntu 24.04 LTS linux-azure-fde-6.17 6.17.0-1018.18~24.04.1 USN-8605-1
Ubuntu 24.04 LTS linux-azure-nvidia 6.8.0-1039.42 —
Ubuntu 24.04 LTS linux-gcp 6.8.0-1058.61 USN-8278-1
Ubuntu 24.04 LTS linux-gcp-6.17 6.17.0-1021.24~24.04.1 USN-8570-1
Ubuntu 24.04 LTS linux-gke 6.8.0-1054.60 USN-8278-1
Ubuntu 24.04 LTS linux-gkeop 6.8.0-1041.44 USN-8278-1
Ubuntu 24.04 LTS linux-hwe-6.17 6.17.0-41.41~24.04.1 —
Ubuntu 24.04 LTS linux-ibm 6.8.0-1055.56 USN-8278-1
Ubuntu 24.04 LTS linux-lowlatency 6.8.0-117.117.1 USN-8278-1
Ubuntu 24.04 LTS linux-nvidia 6.8.0-1054.57 USN-8289-1
Ubuntu 24.04 LTS linux-nvidia-6.17 6.17.0-1031.31 USN-8669-1
Ubuntu 24.04 LTS linux-nvidia-lowlatency 6.8.0-1054.57.1 USN-8289-1
Ubuntu 24.04 LTS linux-nvidia-tegra 6.8.0-1024.24 USN-8296-2
Ubuntu 24.04 LTS linux-oem-6.17 6.17.0-1030.30 USN-8594-1
Ubuntu 24.04 LTS linux-oracle 6.8.0-1054.55 —
Ubuntu 24.04 LTS linux-oracle-6.17 6.17.0-1019.19~24.04.3 USN-8570-2
Ubuntu 24.04 LTS linux-raspi 6.8.0-1056.60 USN-8278-1
Ubuntu 24.04 LTS linux-riscv +20 No fix yet —
Ubuntu 24.04 LTS linux-xilinx 6.8.0-1032.33 USN-8499-1
Ubuntu 22.04 LTS linux-aws-6.8 6.8.0-1057.60~22.04.1 —
Ubuntu 22.04 LTS linux-azure-6.8 6.8.0-1059.65~22.04.1 USN-8440-1
Ubuntu 22.04 LTS linux-azure-fde-6.8 6.8.0-1058.65~22.04.1 —
Ubuntu 22.04 LTS linux-gcp-6.8 6.8.0-1060.63~22.04.1 —
Ubuntu 22.04 LTS linux-hwe-6.8 6.8.0-124.124~22.04.1 —
Ubuntu 22.04 LTS linux-ibm-6.8 6.8.0-1055.56~22.04.1 USN-8278-1
Ubuntu 22.04 LTS linux-lowlatency-hwe-6.8 6.8.0-117.117.1~22.04.1 USN-8278-1
Ubuntu 22.04 LTS linux-nvidia-6.8 6.8.0-1054.57~22.04.1 USN-8289-2
Ubuntu 22.04 LTS linux-oracle-6.8 6.8.0-1054.55~22.04.1 —
Ubuntu 22.04 LTS linux-riscv +32 No fix yet —
Ubuntu 22.04 LTS linux-riscv-6.8 6.8.0-117.117~22.04.1 —
Ubuntu 20.04 LTS linux-gke +28 No fix yet —
Show 5 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Ubuntu Pro Realtime 24.04 LTS linux-raspi-realtime 6.8.0-2045.46 USN-8278-1
Ubuntu Pro Realtime 24.04 LTS linux-realtime 6.8.1-1051.52 USN-8278-1
Ubuntu Pro Realtime 24.04 LTS linux-realtime-6.14 No fix yet —
Ubuntu Pro Realtime 24.04 LTS linux-realtime-6.17 6.17.0-1018.20~24.04.1 USN-8570-1
Ubuntu Pro Realtime 22.04 LTS linux-realtime-6.8 6.8.1-1051.52~22.04.1 USN-8278-1
Ubuntu Pro FIPS-updates 24.04 LTS linux-aws-fips 6.8.0-1055.58+fips1 USN-8278-1
Ubuntu Pro FIPS-updates 24.04 LTS linux-azure-fips 6.8.0-1059.65+fips1 USN-8393-1
Ubuntu Pro FIPS-updates 24.04 LTS linux-fips 6.8.0-116.116+fips1 USN-8296-1
Ubuntu Pro FIPS-updates 24.04 LTS linux-gcp-fips 6.8.0-1058.61+fips1 USN-8278-1

SUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
SLES 15 SP7 kernel-64kb +7 6.4.0-150700.53.90.1 SUSE-SU-2026:5091-1
SLES 15 SP7 kernel-default-base 6.4.0-150700.53.90.1.150700.17.51.1 SUSE-SU-2026:5091-1
SLES 12 SP5 kernel-syms +2 4.12.14-122.339.1 SUSE-SU-2026:5121-1
Show 7 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 16.0 kernel-64kb +8 6.12.0-160000.27.1 SUSE-SU-2026:20931-1
SLES for SAP 16.0 kernel-default-base 6.12.0-160000.27.1.160000.2.8 SUSE-SU-2026:20931-1
SLES 16.0 kernel-64kb +8 6.12.0-160000.27.1 SUSE-SU-2026:20931-1
SLES 16.0 kernel-default-base 6.12.0-160000.27.1.160000.2.8 SUSE-SU-2026:20931-1
SLE Micro 6.2 kernel-default-base 6.12.0-160000.27.1.160000.2.8 SUSE-SU-2026:20838-1
SLE Micro 6.2 kernel-rt +5 6.12.0-160000.27.1 SUSE-SU-2026:20873-1, SUSE-SU-2026:20838-1
SLE Micro 6.1 kernel-default-base 6.4.0-159998.55.1.159998.21.41 SUSE-SU-2026:24619-1
SLE Micro 6.1 kernel-source +2 6.4.0-159998.55.1 SUSE-SU-2026:24619-1
SLE Micro 6.0 kernel-default-base 6.4.0-159998.55.1.159998.21.42 SUSE-SU-2026:24550-1
SLE Micro 6.0 kernel-source +2 6.4.0-159998.55.1 SUSE-SU-2026:24550-1
SLE Live Patching 15 SP7 kernel-default 6.4.0-150700.53.90.1 SUSE-SU-2026:5091-1
SLE Live Patching 15 SP7 kernel-livepatch-SLE15-SP7_Update_24 1-150700.15.3.1 SUSE-SU-2026:5091-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.339.1 SUSE-SU-2026:5121-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_90 1-8.3.1 SUSE-SU-2026:5121-1

openSUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 kernel-default-base 6.12.0-160000.27.1.160000.2.8 openSUSE-SU-2026:20416-1
openSUSE Leap 16.0 kernel-rt +11 6.12.0-160000.27.1 openSUSE-SU-2026:20416-1

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 kernel 6.6.126.1-1 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 9 kernel-uek +34 6.12.0-200.74.27.el10uek ELSA-2026-50372, ELSA-2026-50232, ELSA-2026-50160
Oracle Linux 8 bpftool +18 5.15.0-320.202.8.2.el9uek ELSA-2026-50261

Advisories 29

References