CVE-2025-38075: scsi: target: iscsi: Fix timeout on deleted connection

Q: What is the severity of CVE-2025-38075?

CVE-2025-38075 has a severity rating that indicates potential risk for systems using vulnerable versions of the Linux kernel.

Q: How do I fix CVE-2025-38075?

To fix CVE-2025-38075, update to the patched version of the Linux kernel that addresses this vulnerability.

Q: What operating systems are affected by CVE-2025-38075?

CVE-2025-38075 affects versions of the Linux kernel that support SCSI target over iSCSI connections.

Q: What are the symptoms of CVE-2025-38075 in affected systems?

Systems may experience crashes due to timeout on deleted connections, potentially leading to service interruptions.

Q: Is there a workaround for CVE-2025-38075 while waiting for a patch?

There are no official workarounds for CVE-2025-38075; applying the latest patch is recommended to mitigate the issue.

Published Jun 18, 2025

Updated

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

scsi: target: iscsi: Fix timeout on deleted connection

NOPIN response timer may expire on a deleted connection and crash with such logs:

Did not receive response to NOPIN on CID: 0, failing connection for IT Nexus (null),i,0x00023d000125,iqn.2017-01.com.iscsi.target,t,0x3d

BUG: Kernel NULL pointer dereference on read at 0x00000000 NIP strlcpy+0x8/0xb0 LR iscsitfillcxntimeouterrstats+0x5c/0xc0 [iscsitargetmod] Call Trace: iscsithandlenopinresponsetimeout+0xfc/0x120 [iscsitargetmod] calltimerfn+0x58/0x1f0 runtimersoftirq+0x740/0x860 dosoftirq+0x16c/0x420 irqexit+0x188/0x1c0 timerinterrupt+0x184/0x410

That is because nopin response timer may be re-started on nopin timer expiration.

Stop nopin timer before stopping the nopin response timer to be sure that no one of them will be re-started.

Affected Software

236 affected componentsFixes available

Linux Kernel

Linux Linux kernel>=3.1<5.4.294

Linux Linux kernel>=5.5<5.10.238

Linux Linux kernel>=5.11<5.15.185

Linux Linux kernel>=5.16<6.1.141

Linux Linux kernel>=6.2<6.6.93

Linux Linux kernel>=6.7<6.12.31

Linux Linux kernel>=6.13<6.14.9

Linux Linux kernel=6.15-rc1

Linux Linux kernel=6.15-rc2

Linux Linux kernel=6.15-rc3

Debian Debian Linux=11.0

ubuntu/linux*

ubuntu/linux-aws*

ubuntu/linux-azure*

ubuntu/linux-lts-xenial*

ubuntu/linux*

ubuntu/linux-aws*

ubuntu/linux-aws-hwe*

ubuntu/linux-azure*

ubuntu/linux-gcp*

ubuntu/linux-hwe*

ubuntu/linux-hwe-edge*

ubuntu/linux-kvm*

ubuntu/linux-oracle*

ubuntu/linux-fips*

ubuntu/linux*

ubuntu/linux-aws*

ubuntu/linux-aws-5.0*

ubuntu/linux-aws-5.3*

ubuntu/linux-aws-5.4*

ubuntu/linux-azure*

ubuntu/linux-azure-4.15*

ubuntu/linux-azure-5.3*

ubuntu/linux-azure-5.4*

ubuntu/linux-azure-edge*

ubuntu/linux-gcp*

ubuntu/linux-gcp-4.15*

ubuntu/linux-gcp-5.3*

ubuntu/linux-gcp-5.4*

ubuntu/linux-gke-4.15*

ubuntu/linux-gke-5.4*

ubuntu/linux-gkeop-5.4*

ubuntu/linux-hwe*

ubuntu/linux-hwe-5.4*

ubuntu/linux-hwe-edge*

ubuntu/linux-ibm-5.4*

ubuntu/linux-kvm*

ubuntu/linux-oem*

ubuntu/linux-oracle*

ubuntu/linux-oracle-5.0*

ubuntu/linux-oracle-5.3*

ubuntu/linux-oracle-5.4*

ubuntu/linux-raspi-5.4*

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux*

ubuntu/linux-aws*

ubuntu/linux-aws-5.11*

ubuntu/linux-aws-5.13*

ubuntu/linux-aws-5.15<5.15.0-1090.97~20.04.1

5.15.0-1090.97~20.04.1

ubuntu/linux-aws-5.8*

ubuntu/linux-azure*

ubuntu/linux-azure-5.11*

ubuntu/linux-azure-5.13*

ubuntu/linux-azure-5.15<5.15.0-1094.103~20.04.1

5.15.0-1094.103~20.04.1

ubuntu/linux-azure-5.8*

ubuntu/linux-azure-fde*

ubuntu/linux-bluefield*

ubuntu/linux-gcp*

ubuntu/linux-gcp-5.11*

ubuntu/linux-gcp-5.13*

ubuntu/linux-gcp-5.15<5.15.0-1090.99~20.04.1

5.15.0-1090.99~20.04.1

ubuntu/linux-gcp-5.8*

ubuntu/linux-gke*

ubuntu/linux-gke-5.15*

ubuntu/linux-gkeop*

ubuntu/linux-gkeop-5.15*

ubuntu/linux-hwe-5.11*

ubuntu/linux-hwe-5.13*

ubuntu/linux-hwe-5.15<5.15.0-152.162~20.04.1

5.15.0-152.162~20.04.1

ubuntu/linux-hwe-5.8*

ubuntu/linux-ibm*

ubuntu/linux-ibm-5.15<5.15.0-1083.86~20.04.1

5.15.0-1083.86~20.04.1

ubuntu/linux-intel-5.13*

ubuntu/linux-intel-iotg-5.15<5.15.0-1085.91~20.04.1

5.15.0-1085.91~20.04.1

ubuntu/linux-iot*

ubuntu/linux-kvm*

ubuntu/linux-lowlatency-hwe-5.15<5.15.0-152.162~20.04.1

5.15.0-152.162~20.04.1

ubuntu/linux-nvidia-tegra-5.15<5.15.0-1043.43~20.04.1

5.15.0-1043.43~20.04.1

ubuntu/linux-oem-5.10*

ubuntu/linux-oem-5.13*

ubuntu/linux-oem-5.6*

ubuntu/linux-oracle*

ubuntu/linux-oracle-5.11*

ubuntu/linux-oracle-5.13*

ubuntu/linux-oracle-5.15<5.15.0-1088.94~20.04.1

5.15.0-1088.94~20.04.1

ubuntu/linux-oracle-5.8*

ubuntu/linux-raspi*

ubuntu/linux-raspi2*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.11*

ubuntu/linux-riscv-5.15<5.15.0-1085.89~20.04.1

5.15.0-1085.89~20.04.1

ubuntu/linux-riscv-5.8*

ubuntu/linux-xilinx-zynqmp*

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux<5.15.0-152.162

5.15.0-152.162

ubuntu/linux-allwinner-5.19*

ubuntu/linux-aws<5.15.0-1090.97

5.15.0-1090.97

ubuntu/linux-aws-5.19*

ubuntu/linux-aws-6.2*

ubuntu/linux-aws-6.5*

ubuntu/linux-aws-6.8<6.8.0-1046.49~22.04.1

6.8.0-1046.49~22.04.1

ubuntu/linux-azure<5.15.0-1094.103

5.15.0-1094.103

ubuntu/linux-azure-5.19*

ubuntu/linux-azure-6.2*

ubuntu/linux-azure-6.5*

ubuntu/linux-azure-6.8<6.8.0-1051.57~22.04.1

6.8.0-1051.57~22.04.1

ubuntu/linux-azure-fde<5.15.0-1094.103.1

5.15.0-1094.103.1

ubuntu/linux-azure-fde-5.19*

ubuntu/linux-azure-fde-6.2*

ubuntu/linux-azure-fde-6.8<6.8.0-1046.53~22.04.1

6.8.0-1046.53~22.04.1

ubuntu/linux-gcp<5.15.0-1090.99

5.15.0-1090.99

ubuntu/linux-gcp-5.19*

ubuntu/linux-gcp-6.2*

ubuntu/linux-gcp-6.5*

ubuntu/linux-gcp-6.8<6.8.0-1047.50~22.04.2

6.8.0-1047.50~22.04.2

ubuntu/linux-gke<5.15.0-1087.93

5.15.0-1087.93

ubuntu/linux-gkeop<5.15.0-1073.81

5.15.0-1073.81

ubuntu/linux-hwe-5.19*

ubuntu/linux-hwe-6.2*

ubuntu/linux-hwe-6.5*

ubuntu/linux-hwe-6.8<6.8.0-100.100~22.04.1

6.8.0-100.100~22.04.1

ubuntu/linux-ibm<5.15.0-1084.87

5.15.0-1084.87

ubuntu/linux-ibm-6.8<6.8.0-1044.44~22.04.1

6.8.0-1044.44~22.04.1

ubuntu/linux-intel-iot-realtime*

ubuntu/linux-intel-iotg<5.15.0-1085.91

5.15.0-1085.91

ubuntu/linux-kvm<5.15.0-1086.91

5.15.0-1086.91

ubuntu/linux-lowlatency<5.15.0-152.162

5.15.0-152.162

ubuntu/linux-lowlatency-hwe-5.19*

ubuntu/linux-lowlatency-hwe-6.2*

ubuntu/linux-lowlatency-hwe-6.5*

ubuntu/linux-lowlatency-hwe-6.8<6.8.0-100.100.1~22.04.1

6.8.0-100.100.1~22.04.1

ubuntu/linux-nvidia<5.15.0-1085.86

5.15.0-1085.86

ubuntu/linux-nvidia-6.2*

ubuntu/linux-nvidia-6.5*

ubuntu/linux-nvidia-6.8<6.8.0-1046.49~22.04.1

6.8.0-1046.49~22.04.1

ubuntu/linux-nvidia-tegra<5.15.0-1043.43

5.15.0-1043.43

ubuntu/linux-nvidia-tegra-igx<5.15.0-1032.32

5.15.0-1032.32

ubuntu/linux-oem-5.17*

ubuntu/linux-oem-6.0*

ubuntu/linux-oem-6.1*

ubuntu/linux-oem-6.5*

ubuntu/linux-oracle<5.15.0-1088.94

5.15.0-1088.94

ubuntu/linux-oracle-6.5*

ubuntu/linux-oracle-6.8<6.8.0-1043.44~22.04.1

6.8.0-1043.44~22.04.1

ubuntu/linux-raspi<5.15.0-1084.87

5.15.0-1084.87

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.19*

ubuntu/linux-riscv-6.5*

ubuntu/linux-riscv-6.8<6.8.0-100.100~22.04.1

6.8.0-100.100~22.04.1

ubuntu/linux-starfive-5.19*

ubuntu/linux-starfive-6.2*

ubuntu/linux-starfive-6.5*

ubuntu/linux-xilinx-zynqmp<5.15.0-1054.58

5.15.0-1054.58

ubuntu/linux-bluefield<5.15.0-1074.76

5.15.0-1074.76

ubuntu/linux-intel-iot-realtime<5.15.0-1083.85

5.15.0-1083.85

ubuntu/linux-realtime<5.15.0-1090.99

5.15.0-1090.99

ubuntu/linux-realtime-6.8<6.8.1-1041.42~22.04.1

6.8.1-1041.42~22.04.1

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips<5.15.0-1090.97+fips1

5.15.0-1090.97+fips1

ubuntu/linux-azure-fips<5.15.0-1094.103+fips1

5.15.0-1094.103+fips1

ubuntu/linux-fips<5.15.0-152.162+fips1

5.15.0-152.162+fips1

ubuntu/linux-gcp-fips<5.15.0-1090.99+fips1

5.15.0-1090.99+fips1

ubuntu/linux<6.8.0-100.100

6.8.0-100.100

ubuntu/linux-aws<6.8.0-1046.49

6.8.0-1046.49

ubuntu/linux-aws-6.14<6.14.0-1013.13~24.04.1

6.14.0-1013.13~24.04.1

ubuntu/linux-azure<6.8.0-1046.52

6.8.0-1046.52

ubuntu/linux-azure-6.11*

ubuntu/linux-azure-fde<6.8.0-1046.53

6.8.0-1046.53

ubuntu/linux-azure-nvidia<6.8.0-1039.42

6.8.0-1039.42

ubuntu/linux-azure-nvidia-6.14<6.14.0-1007.7

6.14.0-1007.7

ubuntu/linux-gcp<6.8.0-1047.50

6.8.0-1047.50

ubuntu/linux-gcp-6.11*

ubuntu/linux-gcp-6.14<6.14.0-1016.17~24.04.1

6.14.0-1016.17~24.04.1

ubuntu/linux-gke<6.8.0-1043.48

6.8.0-1043.48

ubuntu/linux-gkeop<6.8.0-1030.33

6.8.0-1030.33

ubuntu/linux-hwe-6.11*

ubuntu/linux-ibm<6.8.0-1044.44

6.8.0-1044.44

ubuntu/linux-intel*

ubuntu/linux-lowlatency<6.8.0-100.100.1

6.8.0-100.100.1

ubuntu/linux-lowlatency-hwe-6.11*

ubuntu/linux-nvidia<6.8.0-1046.49

6.8.0-1046.49

ubuntu/linux-nvidia-6.11*

ubuntu/linux-nvidia-lowlatency<6.8.0-1046.49.1

6.8.0-1046.49.1

ubuntu/linux-nvidia-tegra<6.8.0-1020.20

6.8.0-1020.20

ubuntu/linux-oem-6.11*

ubuntu/linux-oem-6.14<6.14.0-1012.12

6.14.0-1012.12

ubuntu/linux-oem-6.8*

ubuntu/linux-oracle<6.8.0-1043.44

6.8.0-1043.44

ubuntu/linux-oracle-6.14<6.14.0-1013.13~24.04.1

6.14.0-1013.13~24.04.1

ubuntu/linux-raspi<6.8.0-1047.51

6.8.0-1047.51

ubuntu/linux-raspi-realtime*

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-riscv-6.14<6.14.0-32.32.1~24.04.1

6.14.0-32.32.1~24.04.1

ubuntu/linux-xilinx<6.8.0-1023.24

6.8.0-1023.24

ubuntu/linux-bluefield<6.8.0-1016.20

6.8.0-1016.20

ubuntu/linux-raspi-realtime<6.8.0-2037.38

6.8.0-2037.38

ubuntu/linux-realtime<6.8.1-1041.42

6.8.1-1041.42

ubuntu/linux-realtime-6.14<6.14.0-1012.12~24.04.1

6.14.0-1012.12~24.04.1

ubuntu/linux-aws-fips<6.8.0-1046.49+fips1

6.8.0-1046.49+fips1

ubuntu/linux-azure-fips<6.8.0-1046.52+fips1

6.8.0-1046.52+fips1

ubuntu/linux-fips<6.8.0-100.100+fips1

6.8.0-100.100+fips1

ubuntu/linux-gcp-fips<6.8.0-1047.50+fips1

6.8.0-1047.50+fips1

ubuntu/linux-azure-fde*

ubuntu/linux-vmware*

debian/linux

6.1.176-16.1.190-16.12.107-16.12.116-17.2.15-17.3.4-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
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Fixed in 5.15.0-1090.97~20.04.1
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Fixed in 5.15.0-1094.103~20.04.1
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Fixed in 5.15.0-1090.99~20.04.1
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Fixed in 5.15.0-152.162~20.04.1
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Fixed in 5.15.0-1083.86~20.04.1
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Fixed in 5.15.0-1085.91~20.04.1
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Fixed in 5.15.0-152.162~20.04.1
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Fixed in 5.15.0-1043.43~20.04.1
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Fixed in 5.15.0-1088.94~20.04.1
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Fixed in 5.15.0-1085.89~20.04.1
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Fixed in 5.15.0-152.162
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Fixed in 5.15.0-1090.97
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Fixed in 6.8.0-1046.49~22.04.1
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Fixed in 5.15.0-1094.103
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Fixed in 6.8.0-1051.57~22.04.1
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Fixed in 5.15.0-1094.103.1
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Fixed in 6.8.0-1046.53~22.04.1
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Fixed in 5.15.0-1090.99
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Fixed in 6.8.0-1047.50~22.04.2
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Fixed in 5.15.0-1087.93
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Fixed in 5.15.0-1073.81
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Fixed in 6.8.0-100.100~22.04.1
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Fixed in 5.15.0-1084.87
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Fixed in 6.8.0-1044.44~22.04.1
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Fixed in 5.15.0-1085.91
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Fixed in 5.15.0-1086.91
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Fixed in 5.15.0-152.162
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Fixed in 6.8.0-100.100.1~22.04.1
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Fixed in 5.15.0-1085.86
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Fixed in 6.8.0-1046.49~22.04.1
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Fixed in 5.15.0-1043.43
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Fixed in 5.15.0-1032.32
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Fixed in 5.15.0-1088.94
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Fixed in 6.8.0-1043.44~22.04.1
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Fixed in 5.15.0-1084.87
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Fixed in 6.8.0-100.100~22.04.1
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Fixed in 5.15.0-1054.58
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Fixed in 5.15.0-1074.76
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Fixed in 5.15.0-1083.85
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Fixed in 5.15.0-1090.99
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Fixed in 6.8.1-1041.42~22.04.1
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Fixed in 5.15.0-1090.97+fips1
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Fixed in 5.15.0-1094.103+fips1
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Fixed in 5.15.0-152.162+fips1
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Fixed in 5.15.0-1090.99+fips1
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Fixed in 6.8.0-100.100
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Fixed in 6.8.0-1046.49
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Fixed in 6.14.0-1013.13~24.04.1
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Fixed in 6.8.0-1046.52
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Fixed in 6.8.0-1046.53
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Fixed in 6.8.0-1039.42
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Fixed in 6.14.0-1007.7
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Fixed in 6.8.0-1047.50
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Fixed in 6.14.0-1016.17~24.04.1
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Fixed in 6.8.0-1043.48
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Fixed in 6.8.0-1030.33
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Fixed in 6.8.0-1044.44
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Fixed in 6.8.0-100.100.1
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Fixed in 6.8.0-1046.49
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Fixed in 6.8.0-1046.49.1
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Fixed in 6.8.0-1020.20
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Fixed in 6.14.0-1012.12
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Fixed in 6.8.0-1043.44
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Fixed in 6.14.0-1013.13~24.04.1
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Fixed in 6.8.0-1047.51
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Fixed in 6.14.0-32.32.1~24.04.1
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Fixed in 6.8.0-1023.24
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Fixed in 6.8.0-1016.20
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Fixed in 6.8.0-2037.38
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Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.
Fixed in 6.8.1-1041.42
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Upgrade ubuntu/linux-realtime-6.14 to a version that resolves this vulnerability.
Fixed in 6.14.0-1012.12~24.04.1
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Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.
Fixed in 6.8.0-1046.49+fips1
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Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.
Fixed in 6.8.0-1046.52+fips1
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Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 6.8.0-100.100+fips1
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Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.
Fixed in 6.8.0-1047.50+fips1
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Upgrade debian/linux to a version that resolves this vulnerability.
Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.116-1Fixed in 7.2.15-1Fixed in 7.3.4-1
Compensating control
Stop the NOPIN timer before stopping the NOPIN response timer, ensuring neither timer can be restarted after the connection has been deleted.

Event History

Jun 18, 2025

CVE Published

via MITRE·09:33 AM

Data Sourced

via MITRE·09:33 AM

DescriptionSeverity

Data Sourced

via OSV·10:15 AM

DescriptionSeverityAffected Software

Data Sourced

via NVD·10:15 AM

RemedyDescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

DSA-5973

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

What is the severity of CVE-2025-38075?

CVE-2025-38075 has a severity rating that indicates potential risk for systems using vulnerable versions of the Linux kernel.

How do I fix CVE-2025-38075?

To fix CVE-2025-38075, update to the patched version of the Linux kernel that addresses this vulnerability.

What operating systems are affected by CVE-2025-38075?

CVE-2025-38075 affects versions of the Linux kernel that support SCSI target over iSCSI connections.

What are the symptoms of CVE-2025-38075 in affected systems?

Systems may experience crashes due to timeout on deleted connections, potentially leading to service interruptions.

Is there a workaround for CVE-2025-38075 while waiting for a patch?

There are no official workarounds for CVE-2025-38075; applying the latest patch is recommended to mitigate the issue.

CVE-2025-38075: scsi: target: iscsi: Fix timeout on deleted connection

Affected Software

Remediation

Event History

Parent advisories

Peer vulnerabilities

Frequently Asked Questions

What is the severity of CVE-2025-38075?

How do I fix CVE-2025-38075?

What operating systems are affected by CVE-2025-38075?

What are the symptoms of CVE-2025-38075 in affected systems?

Is there a workaround for CVE-2025-38075 while waiting for a patch?

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