UBUNTU-CVE-2024-50059: Use After Free

Q: What conditions are required to trigger this issue?

The affected Switchtec NTB driver must have initialized its link-status work, and a link notification must start that work. The race occurs when the driver or module is removed while the queued or running work can still access the device structure after cleanup frees it.

Q: Are systems affected by default?

The issue is specific to the Linux kernel's Switchtec NTB hardware driver. The provided information does not establish whether that driver is enabled, loaded, or used by default in any listed Ubuntu kernel package.

Q: What is the mitigation if an updated kernel cannot be installed immediately?

Avoid removing the affected Switchtec NTB driver or module while link-status work may be active. The upstream fix cancels the work before freeing the device structure during driver removal.

Q: How can I determine whether a system is exposed?

Determine whether the system uses the Switchtec NTB driver and whether its driver or module may be removed during operation. Exposure depends on the link-status work being started and racing with the driver's removal path.

Published Oct 21, 2024

Updated

In the Linux kernel, the following vulnerability has been resolved: ntb: ntbhwswitchtec: Fix use after free vulnerability in switchtecntbremove due to race condition In the switchtecntbadd function, it can call switchtecntbinitsndev function, then &sndev->checklinkstatuswork is bound with checklinkstatuswork. switchtecntblinknotification may be called to start the work. If we remove the module which will call switchtecntbremove to make cleanup, it will free sndev through kfree(sndev), while the work mentioned above will be used. The sequence of operations that may lead to a UAF bug is as follows: CPU0 CPU1 | checklinkstatuswork switchtecntbremove | kfree(sndev); | | if (sndev->linkforcedown) | // use sndev Fix it by ensuring that the work is canceled before proceeding with the cleanup in switchtecntbremove.

Affected Software

176 affected componentsFixes available

ubuntu/linux-hwe-edge*

ubuntu/linux-aws-5.0*

ubuntu/linux-aws-5.3*

ubuntu/linux-aws-5.4<5.4.0-1142.152~18.04.1

5.4.0-1142.152~18.04.1

ubuntu/linux-azure*

ubuntu/linux-azure-5.3*

ubuntu/linux-azure-5.4<5.4.0-1145.152~18.04.1

5.4.0-1145.152~18.04.1

ubuntu/linux-azure-edge*

ubuntu/linux-gcp*

ubuntu/linux-gcp-5.3*

ubuntu/linux-gcp-5.4<5.4.0-1143.152~18.04.1

5.4.0-1143.152~18.04.1

ubuntu/linux-gke-4.15*

ubuntu/linux-gke-5.4*

ubuntu/linux-gkeop-5.4*

ubuntu/linux-hwe*

ubuntu/linux-hwe-5.4<5.4.0-208.228~18.04.1

5.4.0-208.228~18.04.1

ubuntu/linux-hwe-edge*

ubuntu/linux-ibm-5.4<5.4.0-1086.91~18.04.1

5.4.0-1086.91~18.04.1

ubuntu/linux-oem*

ubuntu/linux-oracle-5.0*

ubuntu/linux-oracle-5.3*

ubuntu/linux-oracle-5.4<5.4.0-1138.147~18.04.1

5.4.0-1138.147~18.04.1

ubuntu/linux-raspi-5.4<5.4.0-1129.142~18.04.1

5.4.0-1129.142~18.04.1

ubuntu/linux<5.4.0-208.228

5.4.0-208.228

ubuntu/linux-aws<5.4.0-1140.150

5.4.0-1140.150

ubuntu/linux-aws-5.15<5.15.0-1073.79~20.04.1

5.15.0-1073.79~20.04.1

ubuntu/linux-azure<5.4.0-1145.152

5.4.0-1145.152

ubuntu/linux-azure-5.15<5.15.0-1078.87~20.04.1

5.15.0-1078.87~20.04.1

ubuntu/linux-bluefield<5.4.0-1099.106

5.4.0-1099.106

ubuntu/linux-gcp<5.4.0-1143.152

5.4.0-1143.152

ubuntu/linux-gcp-5.15<5.15.0-1072.80~20.04.1

5.15.0-1072.80~20.04.1

ubuntu/linux-hwe-5.15<5.15.0-127.137~20.04.1

5.15.0-127.137~20.04.1

ubuntu/linux-ibm<5.4.0-1086.91

5.4.0-1086.91

ubuntu/linux-ibm-5.15<5.15.0-1066.69~20.04.1

5.15.0-1066.69~20.04.1

ubuntu/linux-intel-iotg-5.15<5.15.0-1071.77~20.04.1

5.15.0-1071.77~20.04.1

ubuntu/linux-iot<5.4.0-1048.51

5.4.0-1048.51

ubuntu/linux-kvm<5.4.0-1127.136

5.4.0-1127.136

ubuntu/linux-lowlatency-hwe-5.15<5.15.0-127.137~20.04.1

5.15.0-127.137~20.04.1

ubuntu/linux-nvidia-tegra-5.15<5.15.0-1032.32~20.04.1

5.15.0-1032.32~20.04.1

ubuntu/linux-oracle<5.4.0-1138.147

5.4.0-1138.147

ubuntu/linux-oracle-5.15<5.15.0-1071.77~20.04.1

5.15.0-1071.77~20.04.1

ubuntu/linux-raspi<5.4.0-1129.142

5.4.0-1129.142

ubuntu/linux-riscv-5.15<5.15.0-1069.73~20.04.1

5.15.0-1069.73~20.04.1

ubuntu/linux-xilinx-zynqmp<5.4.0-1058.62

5.4.0-1058.62

ubuntu/linux-aws-5.11*

ubuntu/linux-aws-5.13*

ubuntu/linux-aws-5.8*

ubuntu/linux-azure-5.11*

ubuntu/linux-azure-5.13*

ubuntu/linux-azure-5.8*

ubuntu/linux-azure-fde*

ubuntu/linux-gcp-5.11*

ubuntu/linux-gcp-5.13*

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-5.8*

ubuntu/linux-intel-5.13*

ubuntu/linux-oem-5.10*

ubuntu/linux-oem-5.13*

ubuntu/linux-oem-5.6*

ubuntu/linux-oracle-5.11*

ubuntu/linux-oracle-5.13*

ubuntu/linux-oracle-5.8*

ubuntu/linux-raspi2*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.11*

ubuntu/linux-riscv-5.8*

ubuntu/linux-aws-fips<5.4.0-1140.151+fips1

5.4.0-1140.151+fips1

ubuntu/linux-azure-fips<5.4.0-1145.152+fips1

5.4.0-1145.152+fips1

ubuntu/linux-fips<5.4.0-1116.126

5.4.0-1116.126

ubuntu/linux-gcp-fips<5.4.0-1143.152+fips1

5.4.0-1143.152+fips1

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux<5.15.0-127.137

5.15.0-127.137

ubuntu/linux-allwinner-5.19*

ubuntu/linux-aws<5.15.0-1073.79

5.15.0-1073.79

ubuntu/linux-aws-5.19*

ubuntu/linux-aws-6.2*

ubuntu/linux-aws-6.5*

ubuntu/linux-aws-6.8<6.8.0-1027.29~22.04.1

6.8.0-1027.29~22.04.1

ubuntu/linux-azure<5.15.0-1078.87

5.15.0-1078.87

ubuntu/linux-azure-5.19*

ubuntu/linux-azure-6.2*

ubuntu/linux-azure-6.5*

ubuntu/linux-azure-6.8<6.8.0-1025.30~22.04.1

6.8.0-1025.30~22.04.1

ubuntu/linux-azure-fde<5.15.0-1078.87.1

5.15.0-1078.87.1

ubuntu/linux-azure-fde-5.19*

ubuntu/linux-azure-fde-6.2*

ubuntu/linux-gcp<5.15.0-1072.80

5.15.0-1072.80

ubuntu/linux-gcp-5.19*

ubuntu/linux-gcp-6.2*

ubuntu/linux-gcp-6.5*

ubuntu/linux-gcp-6.8<6.8.0-1026.28~22.04.1

6.8.0-1026.28~22.04.1

ubuntu/linux-gke<5.15.0-1070.76

5.15.0-1070.76

ubuntu/linux-gkeop<5.15.0-1056.63

5.15.0-1056.63

ubuntu/linux-hwe-5.19*

ubuntu/linux-hwe-6.2*

ubuntu/linux-hwe-6.5*

ubuntu/linux-hwe-6.8<6.8.0-57.59~22.04.1

6.8.0-57.59~22.04.1

ubuntu/linux-ibm<5.15.0-1066.69

5.15.0-1066.69

ubuntu/linux-ibm-6.8<6.8.0-1023.23~22.04.1

6.8.0-1023.23~22.04.1

ubuntu/linux-intel-iotg<5.15.0-1071.77

5.15.0-1071.77

ubuntu/linux-kvm<5.15.0-1070.75

5.15.0-1070.75

ubuntu/linux-lowlatency<5.15.0-127.137

5.15.0-127.137

ubuntu/linux-lowlatency-hwe-5.19*

ubuntu/linux-lowlatency-hwe-6.2*

ubuntu/linux-lowlatency-hwe-6.5*

ubuntu/linux-lowlatency-hwe-6.8<6.8.0-56.58.1~22.04.1

6.8.0-56.58.1~22.04.1

ubuntu/linux-nvidia<5.15.0-1068.69

5.15.0-1068.69

ubuntu/linux-nvidia-6.2*

ubuntu/linux-nvidia-6.5*

ubuntu/linux-nvidia-6.8<6.8.0-1024.27~22.04.1

6.8.0-1024.27~22.04.1

ubuntu/linux-nvidia-tegra<5.15.0-1032.32

5.15.0-1032.32

ubuntu/linux-nvidia-tegra-igx<5.15.0-1020.20

5.15.0-1020.20

ubuntu/linux-oem-5.17*

ubuntu/linux-oem-6.0*

ubuntu/linux-oem-6.1*

ubuntu/linux-oem-6.5*

ubuntu/linux-oracle<5.15.0-1071.77

5.15.0-1071.77

ubuntu/linux-oracle-6.5*

ubuntu/linux-oracle-6.8<6.8.0-1022.23~22.04.1

6.8.0-1022.23~22.04.1

ubuntu/linux-raspi<5.15.0-1066.69

5.15.0-1066.69

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.19*

ubuntu/linux-riscv-6.5*

ubuntu/linux-riscv-6.8<6.8.0-56.58.1~22.04.1

6.8.0-56.58.1~22.04.1

ubuntu/linux-starfive-5.19*

ubuntu/linux-starfive-6.2*

ubuntu/linux-starfive-6.5*

ubuntu/linux-xilinx-zynqmp<5.15.0-1039.43

5.15.0-1039.43

ubuntu/linux-bluefield<5.15.0-1057.59

5.15.0-1057.59

ubuntu/linux-intel-iot-realtime<5.15.0-1066.68

5.15.0-1066.68

ubuntu/linux-realtime<5.15.0-1074.82

5.15.0-1074.82

ubuntu/linux-realtime-6.8<6.8.1-1018.19~22.04.1

6.8.1-1018.19~22.04.1

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips<5.15.0-1073.79+fips1

5.15.0-1073.79+fips1

ubuntu/linux-azure-fips<5.15.0-1078.87+fips1

5.15.0-1078.87+fips1

ubuntu/linux-fips<5.15.0-127.137+fips1

5.15.0-127.137+fips1

ubuntu/linux-gcp-fips<5.15.0-1072.80+fips1

5.15.0-1072.80+fips1

ubuntu/linux<6.8.0-56.58

6.8.0-56.58

ubuntu/linux-aws<6.8.0-1025.27

6.8.0-1025.27

ubuntu/linux-azure<6.8.0-1025.30

6.8.0-1025.30

ubuntu/linux-azure-6.11<6.11.0-1012.12~24.04.1

6.11.0-1012.12~24.04.1

ubuntu/linux-azure-nvidia<6.8.0-1014.15

6.8.0-1014.15

ubuntu/linux-gcp<6.8.0-1026.28

6.8.0-1026.28

ubuntu/linux-gcp-6.11<6.11.0-1011.11~24.04.1

6.11.0-1011.11~24.04.1

ubuntu/linux-gke<6.8.0-1021.25

6.8.0-1021.25

ubuntu/linux-gkeop<6.8.0-1008.10

6.8.0-1008.10

ubuntu/linux-ibm<6.8.0-1022.22

6.8.0-1022.22

ubuntu/linux-lowlatency<6.8.0-56.58.1

6.8.0-56.58.1

ubuntu/linux-nvidia<6.8.0-1024.27

6.8.0-1024.27

ubuntu/linux-nvidia-6.11<6.11.0-1007.7

6.11.0-1007.7

ubuntu/linux-nvidia-lowlatency<6.8.0-1024.27.1

6.8.0-1024.27.1

ubuntu/linux-nvidia-tegra<6.8.0-1004.4

6.8.0-1004.4

ubuntu/linux-oem-6.11<6.11.0-1015.15

6.11.0-1015.15

ubuntu/linux-oem-6.8<6.8.0-1024.24

6.8.0-1024.24

ubuntu/linux-oracle<6.8.0-1022.23

6.8.0-1022.23

ubuntu/linux-raspi<6.8.0-1028.32

6.8.0-1028.32

ubuntu/linux-raspi-realtime*

ubuntu/linux-realtime*

ubuntu/linux-riscv<6.8.0-56.58.1

6.8.0-56.58.1

ubuntu/linux-xilinx<6.8.0-1017.18

6.8.0-1017.18

ubuntu/linux-raspi-realtime<6.8.0-2023.24

6.8.0-2023.24

ubuntu/linux-realtime<6.8.1-1018.19

6.8.1-1018.19

ubuntu/linux-fips<6.8.0-78.78+fips1

6.8.0-78.78+fips1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade ubuntu/linux-aws-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1142.152~18.04.1
Upgrade
Upgrade ubuntu/linux-azure-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1145.152~18.04.1
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Upgrade ubuntu/linux-gcp-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1143.152~18.04.1
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Upgrade ubuntu/linux-hwe-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-208.228~18.04.1
Upgrade
Upgrade ubuntu/linux-ibm-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1086.91~18.04.1
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Upgrade ubuntu/linux-oracle-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1138.147~18.04.1
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Upgrade ubuntu/linux-raspi-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1129.142~18.04.1
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Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 5.4.0-208.228
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Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 5.4.0-1140.150
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Upgrade ubuntu/linux-aws-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1073.79~20.04.1
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Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 5.4.0-1145.152
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Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1078.87~20.04.1
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Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.
Fixed in 5.4.0-1099.106
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Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 5.4.0-1143.152
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Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1072.80~20.04.1
Upgrade
Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-127.137~20.04.1
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Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 5.4.0-1086.91
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Upgrade ubuntu/linux-ibm-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1066.69~20.04.1
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Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1071.77~20.04.1
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Upgrade ubuntu/linux-iot to a version that resolves this vulnerability.
Fixed in 5.4.0-1048.51
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Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 5.4.0-1127.136
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Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-127.137~20.04.1
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Upgrade ubuntu/linux-nvidia-tegra-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1032.32~20.04.1
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Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 5.4.0-1138.147
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Upgrade ubuntu/linux-oracle-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1071.77~20.04.1
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Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.
Fixed in 5.4.0-1129.142
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Upgrade ubuntu/linux-riscv-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1069.73~20.04.1
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Upgrade ubuntu/linux-xilinx-zynqmp to a version that resolves this vulnerability.
Fixed in 5.4.0-1058.62
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Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1140.151+fips1
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Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1145.152+fips1
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Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1116.126
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Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1143.152+fips1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 5.15.0-127.137
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Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 5.15.0-1073.79
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Upgrade ubuntu/linux-aws-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1027.29~22.04.1
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Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 5.15.0-1078.87
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Upgrade ubuntu/linux-azure-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1025.30~22.04.1
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Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.
Fixed in 5.15.0-1078.87.1
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Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 5.15.0-1072.80
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Upgrade ubuntu/linux-gcp-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1026.28~22.04.1
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Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.
Fixed in 5.15.0-1070.76
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Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.
Fixed in 5.15.0-1056.63
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Upgrade ubuntu/linux-hwe-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-57.59~22.04.1
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Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 5.15.0-1066.69
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Upgrade ubuntu/linux-ibm-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1023.23~22.04.1
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Upgrade ubuntu/linux-intel-iotg to a version that resolves this vulnerability.
Fixed in 5.15.0-1071.77
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Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 5.15.0-1070.75
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Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.
Fixed in 5.15.0-127.137
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Upgrade ubuntu/linux-lowlatency-hwe-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-56.58.1~22.04.1
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Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.
Fixed in 5.15.0-1068.69
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Upgrade ubuntu/linux-nvidia-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1024.27~22.04.1
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Upgrade ubuntu/linux-nvidia-tegra to a version that resolves this vulnerability.
Fixed in 5.15.0-1032.32
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Upgrade ubuntu/linux-nvidia-tegra-igx to a version that resolves this vulnerability.
Fixed in 5.15.0-1020.20
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Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 5.15.0-1071.77
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Upgrade ubuntu/linux-oracle-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1022.23~22.04.1
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Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.
Fixed in 5.15.0-1066.69
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Upgrade ubuntu/linux-riscv-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-56.58.1~22.04.1
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Upgrade ubuntu/linux-xilinx-zynqmp to a version that resolves this vulnerability.
Fixed in 5.15.0-1039.43
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Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.
Fixed in 5.15.0-1057.59
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Upgrade ubuntu/linux-intel-iot-realtime to a version that resolves this vulnerability.
Fixed in 5.15.0-1066.68
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Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.
Fixed in 5.15.0-1074.82
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Upgrade ubuntu/linux-realtime-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.1-1018.19~22.04.1
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Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-1073.79+fips1
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Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-1078.87+fips1
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Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-127.137+fips1
Upgrade
Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-1072.80+fips1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 6.8.0-56.58
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Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 6.8.0-1025.27
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Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 6.8.0-1025.30
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Upgrade ubuntu/linux-azure-6.11 to a version that resolves this vulnerability.
Fixed in 6.11.0-1012.12~24.04.1
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Upgrade ubuntu/linux-azure-nvidia to a version that resolves this vulnerability.
Fixed in 6.8.0-1014.15
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Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 6.8.0-1026.28
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Upgrade ubuntu/linux-gcp-6.11 to a version that resolves this vulnerability.
Fixed in 6.11.0-1011.11~24.04.1
Upgrade
Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.
Fixed in 6.8.0-1021.25
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Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.
Fixed in 6.8.0-1008.10
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Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 6.8.0-1022.22
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Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.
Fixed in 6.8.0-56.58.1
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Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.
Fixed in 6.8.0-1024.27
Upgrade
Upgrade ubuntu/linux-nvidia-6.11 to a version that resolves this vulnerability.
Fixed in 6.11.0-1007.7
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Fixed in 6.8.0-1024.27.1
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Fixed in 6.8.0-1004.4
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Upgrade ubuntu/linux-oem-6.11 to a version that resolves this vulnerability.
Fixed in 6.11.0-1015.15
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Fixed in 6.8.0-1024.24
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Fixed in 6.8.0-1022.23
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Fixed in 6.8.0-1028.32
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Fixed in 6.8.0-56.58.1
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Fixed in 6.8.0-1017.18
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Fixed in 6.8.0-2023.24
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Fixed in 6.8.1-1018.19
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Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 6.8.0-78.78+fips1
Compensating control
In switchtec_ntb_remove, cancel check_link_status_work before proceeding with cleanup and freeing sndev, preventing switchtec_ntb_link_notification or the work item from using sndev after kfree(sndev).

Event History

Oct 21, 2024

CVE Published

via OSV·08:15 PM

Data Sourced

via OSV·08:15 PM

DescriptionSeverityAffected Software

Frequently Asked Questions

What conditions are required to trigger this issue?

The affected Switchtec NTB driver must have initialized its link-status work, and a link notification must start that work. The race occurs when the driver or module is removed while the queued or running work can still access the device structure after cleanup frees it.

Are systems affected by default?