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Vulnerability · Published May 2, 2025 · Assigned by oracle

CVE-2022-21546scsi: target: Fix WRITE_SAME No Data Buffer crash

High 7.5

In plain English

A high-severity null pointer dereference 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 0.5% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 60.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix WRITE_SAME No Data Buffer crash In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer that gets written out. If this bit is set using commands like "sg_write_same --ndob" we will crash in target_core_iblock/file's execute_write_same handlers when we go to access the se_cmd->t_data_sg because its NULL. This patch adds a check for the NDOB bit in the common WRITE SAME code because we don't support it. And, it adds a check for zero SG elements in each handler in case the initiator tries to send a normal WRITE SAME with no data buffer.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.19.6-1DEBIAN-CVE-2022-21546
Debian:13linux5.19.6-1DEBIAN-CVE-2022-21546
Debian:14linux5.19.6-1DEBIAN-CVE-2022-21546
Ubuntu:22.04:LTSlinux5.15.0-144.157UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux5.15.0-144.157USN-7654-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-aws5.15.0-1088.95UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-aws5.15.0-1088.95USN-7654-1
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-azure5.15.0-1094.103UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-azure5.15.0-1094.103USN-7711-1
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1094.103.1UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-gcp5.15.0-1087.96UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-gcp5.15.0-1087.96USN-7654-1
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-gke5.15.0-1085.91UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-gke5.15.0-1085.91USN-7654-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1070.78USN-7654-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1070.78UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-ibm5.15.0-1080.83UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-ibm5.15.0-1080.83USN-7654-1
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1083.89UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1083.89USN-7654-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1084.89UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-kvm5.15.0-1084.89USN-7654-4
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-144.157UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-144.157USN-7654-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1082.83USN-7654-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1082.83UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1041.41USN-7654-1
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1041.41UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1030.30USN-7654-1
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1030.30UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-oracle5.15.0-1085.91USN-7654-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1085.91UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-raspi5.15.0-1083.86USN-7686-1
Ubuntu:22.04:LTSlinux-raspi5.15.0-1083.86UBUNTU-CVE-2022-21546
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-21546
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1052.56UBUNTU-CVE-2022-21546
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1052.56USN-7654-5

Affected products (as reported)

VendorProductVersions
Linux Linux f6970ad31d42fceb38b5595cbad093a4d0bfcc43 – before 54e57be2573cf0b8bf650375fd8752987b6c3d3bf6970ad31d42fceb38b5595cbad093a4d0bfcc43 – before d8e6a27e9238dd294d6f2f401655f300dca20899f6970ad31d42fceb38b5595cbad093a4d0bfcc43 – before 4226622647e3e5ac06d3ebc1605b917446157510f6970ad31d42fceb38b5595cbad093a4d0bfcc43 – before ccd3f449052449a917a3e577d8ba0368f43b8f29
Linux Linux 3.8

Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References