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OpenAdvisories
Medium · 5.5 CVE-2023-52508 EUVD-2023-57133GHSA-9mvw-qw27-cc95

nvme-fc: Prevent null pointer dereference in nvme_fc_io_getuuid()

Published Mar 2, 2024 · Updated May 23, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: linux Package: linux-allwinner-5.19 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-6.2 Package: linux-aws-6.5 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-6.2 Package: linux-azure-6.5 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.2 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-6.2 Package: linux-gcp-6.5 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-6.2 Package: linux-hwe-6.5 Package: linux-hwe-edge Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 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-6.5 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-6.5 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-vmware Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

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

nvme-fc: Prevent null pointer dereference in nvme_fc_io_getuuid()

The nvme_fc_fcp_op structure describing an AEN operation is initialized with a
null request structure pointer. An FC LLDD may make a call to
nvme_fc_io_getuuid passing a pointer to an nvmefc_fcp_req for an AEN operation.

Add validation of the request structure pointer before dereference.

Affected products

VendorProductAffectedFixed
Linux Linux 5.18.18 – < 5.19, 5.19 5.19

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.

ReleasePackageFixed inAdvisory
Debian 14 linux 6.5.6-1 —
Debian 13 linux 6.5.6-1 —
Debian 12 linux 6.1.64-1 —
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux-nvidia-6.5 6.5.0-1014.14 —
Ubuntu 22.04 LTS linux-riscv +29 No fix yet —
Ubuntu 20.04 LTS linux-gke +28 No fix yet —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
ReleasePackageFixed inAdvisory
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.59.1 SUSE-SU-2024:1480-1
SLES 15 SP5 kernel-azure +2 5.14.21-150500.33.48.1 SUSE-SU-2024:1490-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.59.1.150500.6.25.7 SUSE-SU-2024:1480-1
SLES 15 SP4 kernel-64kb +6 5.14.21-150400.24.116.1 SUSE-SU-2024:1321-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.116.1.150400.24.54.5 SUSE-SU-2024:1321-1
SLES 15 SP3 kernel-64kb +7 5.3.18-150300.59.158.1 SUSE-SU-2024:1489-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.158.1.150300.18.92.5 SUSE-SU-2024:1489-1
Show 16 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP4 kernel-default-base 5.14.21-150400.24.116.1.150400.24.54.5 SUSE-SU-2024:1321-1
SLES for SAP 15 SP4 kernel-docs +4 5.14.21-150400.24.116.1 SUSE-SU-2024:1321-1
SLES for SAP 15 SP3 kernel-default-base 5.3.18-150300.59.158.1.150300.18.92.5 SUSE-SU-2024:1489-1
SLES for SAP 15 SP3 kernel-docs +5 5.3.18-150300.59.158.1 SUSE-SU-2024:1489-1
SLE Micro 5.5 kernel-default 5.14.21-150500.55.59.1 SUSE-SU-2024:1480-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.59.1.150500.6.25.7 SUSE-SU-2024:1480-1
SLE Micro 5.5 kernel-rt +1 5.14.21-150500.13.47.1 SUSE-SU-2024:1466-1
SLE Micro 5.4 kernel-default 5.14.21-150400.24.116.1 SUSE-SU-2024:1321-1
SLE Micro 5.4 kernel-default-base 5.14.21-150400.24.116.1.150400.24.54.5 SUSE-SU-2024:1321-1
SLE Micro 5.4 kernel-rt +1 5.14.21-150400.15.76.1 SUSE-SU-2024:1320-1
SLE Micro 5.3 kernel-default 5.14.21-150400.24.116.1 SUSE-SU-2024:1321-1
SLE Micro 5.3 kernel-default-base 5.14.21-150400.24.116.1.150400.24.54.5 SUSE-SU-2024:1321-1
SLE Micro 5.3 kernel-rt +1 5.14.21-150400.15.76.1 SUSE-SU-2024:1320-1
SLE Micro 5.2 kernel-default 5.3.18-150300.59.158.1 SUSE-SU-2024:1489-1
SLE Micro 5.2 kernel-default-base 5.3.18-150300.59.158.1.150300.18.92.5 SUSE-SU-2024:1489-1
SLE Micro 5.2 kernel-rt +1 5.3.18-150300.166.1 SUSE-SU-2025:01995-1, SUSE-SU-2024:1465-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.158.1 SUSE-SU-2024:1489-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.158.1.150300.18.92.5 SUSE-SU-2024:1489-1
SLE Micro 5.1 kernel-rt +1 5.3.18-150300.166.1 SUSE-SU-2025:01995-1, SUSE-SU-2024:1465-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.59.1 SUSE-SU-2024:1480-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5-RT_Update_13 1-150500.11.3.1 SUSE-SU-2024:1466-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_12 1-150500.11.7.1 SUSE-SU-2024:1480-1
SLE Live Patching 15 SP4 kernel-default 5.14.21-150400.24.116.1 SUSE-SU-2024:1321-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_25 1-150400.9.5.1 SUSE-SU-2024:1321-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-150300.59.158.1 SUSE-SU-2024:1489-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_43 1-150300.7.3.5 SUSE-SU-2024:1489-1
SLE HPC 15 SP4 kernel-64kb +5 5.14.21-150400.24.116.1 SUSE-SU-2024:1321-1
SLE HPC 15 SP4 kernel-default-base 5.14.21-150400.24.116.1.150400.24.54.5 SUSE-SU-2024:1321-1
SLE HPC 15 SP3 kernel-64kb +6 5.3.18-150300.59.158.1 SUSE-SU-2024:1489-1
SLE HPC 15 SP3 kernel-default-base 5.3.18-150300.59.158.1.150300.18.92.5 SUSE-SU-2024:1489-1
SUSE Real Time Module 15 SP5 kernel-rt +3 5.14.21-150500.13.47.1 SUSE-SU-2024:1466-1
SUSE Manager Server 4.3 kernel-default-base 5.14.21-150400.24.116.1.150400.24.54.5 SUSE-SU-2024:1321-1
SUSE Manager Server 4.3 kernel-syms +3 5.14.21-150400.24.116.1 SUSE-SU-2024:1321-1
SUSE Manager Proxy 4.3 kernel-default-base 5.14.21-150400.24.116.1.150400.24.54.5 SUSE-SU-2024:1321-1
SUSE Manager Proxy 4.3 kernel-syms +2 5.14.21-150400.24.116.1 SUSE-SU-2024:1321-1
SUSE Enterprise Storage 7.1 kernel-64kb +6 5.3.18-150300.59.158.1 SUSE-SU-2024:1489-1
SUSE Enterprise Storage 7.1 kernel-default-base 5.3.18-150300.59.158.1.150300.18.92.5 SUSE-SU-2024:1489-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.5 dtb-aarch64 +10 5.14.21-150500.55.59.1 SUSE-SU-2024:1480-1
openSUSE Leap 15.5 kernel-azure +2 5.14.21-150500.33.48.1 SUSE-SU-2024:1490-1
openSUSE Leap 15.5 kernel-default-base 5.14.21-150500.55.59.1.150500.6.25.7 SUSE-SU-2024:1480-1
openSUSE Leap 15.5 kernel-rt +3 5.14.21-150500.13.47.1 SUSE-SU-2024:1466-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
openSUSE Leap Micro 5.4 kernel-default 5.14.21-150400.24.116.1 SUSE-SU-2024:1321-1
openSUSE Leap Micro 5.4 kernel-default-base 5.14.21-150400.24.116.1.150400.24.54.5 SUSE-SU-2024:1321-1
openSUSE Leap Micro 5.4 kernel-rt 5.14.21-150400.15.76.1 SUSE-SU-2024:1320-1
openSUSE Leap Micro 5.3 kernel-default 5.14.21-150400.24.116.1 SUSE-SU-2024:1321-1
openSUSE Leap Micro 5.3 kernel-default-base 5.14.21-150400.24.116.1.150400.24.54.5 SUSE-SU-2024:1321-1
openSUSE Leap Micro 5.3 kernel-rt 5.14.21-150400.15.76.1 SUSE-SU-2024:1320-1

Advisories 8

References