CVE-2025-38477: net/sched: sch_qfq: Fix race condition on qfq_aggregate

Published Jul 28, 2025
·
Updated

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

net/sched: schqfq: Fix race condition on qfqaggregate

A race condition can occur when 'agg' is modified in qfqchangeagg (called during qfqenqueue) while other threads access it concurrently. For example, qfqdumpclass may trigger a NULL dereference, and qfqdeleteclass may cause a use-after-free.

This patch addresses the issue by:

1. Moved qfqdestroyclass into the critical section.

2. Added schtreelock protection to qfqdumpclass and qfqdumpclassstats.

Affected Software

241 affected componentsFixes available
Linux Linux kernel
Microsoft azl3 kernel 6.6.96.2-1
Microsoft azl3 kernel 6.6.96.2-2
Patch available
Microsoft cbl2 kernel 5.15.186.1-1
Patch available
Linux Linux kernel>=3.8<5.4.297
Linux Linux kernel>=5.5<5.10.241
Linux Linux kernel>=5.11<5.15.190
Linux Linux kernel>=5.16<6.1.147
Linux Linux kernel>=6.2<6.6.100
Linux Linux kernel>=6.7<6.12.40
Linux Linux kernel>=6.13<6.15.8
Linux Linux kernel=6.16-rc1
Linux Linux kernel=6.16-rc2
Linux Linux kernel=6.16-rc3
Linux Linux kernel=6.16-rc4
Linux Linux kernel=6.16-rc5
Linux Linux kernel=6.16-rc6
Debian Debian Linux=11.0
ubuntu/linux*
ubuntu/linux-aws*
ubuntu/linux-azure<4.15.0-1193.208~14.04.1
4.15.0-1193.208~14.04.1
ubuntu/linux-lts-xenial*
ubuntu/linux-aws-hwe<4.15.0-1185.198~16.04.1
4.15.0-1185.198~16.04.1
ubuntu/linux-azure<4.15.0-1193.208~16.04.1
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ubuntu/linux-gcp<4.15.0-1178.195~16.04.1
4.15.0-1178.195~16.04.1
ubuntu/linux-hwe<4.15.0-242.254~16.04.1
4.15.0-242.254~16.04.1
ubuntu/linux-oracle<4.15.0-1148.159~16.04.1
4.15.0-1148.159~16.04.1
ubuntu/linux*
ubuntu/linux-aws*
ubuntu/linux-hwe-edge*
ubuntu/linux-kvm*
ubuntu/linux-fips*
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ubuntu/linux<4.15.0-242.254
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ubuntu/linux-aws-5.0*
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ubuntu/linux-aws-5.4<5.4.0-1151.161~18.04.1
5.4.0-1151.161~18.04.1
ubuntu/linux-azure*
ubuntu/linux-azure-4.15<4.15.0-1193.208
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ubuntu/linux-gcp-4.15<4.15.0-1178.195
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ubuntu/linux-aws-fips<4.15.0-2123.129
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ubuntu/linux-azure-fips<4.15.0-2102.108
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ubuntu/linux-fips<4.15.0-1140.151
4.15.0-1140.151
ubuntu/linux-gcp-fips<4.15.0-2086.92
4.15.0-2086.92
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.4.0-222.242
5.4.0-222.242
ubuntu/linux-aws<5.4.0-1151.161
5.4.0-1151.161
ubuntu/linux-aws-5.11*
ubuntu/linux-aws-5.13*
ubuntu/linux-aws-5.15<5.15.0-1093.100~20.04.1
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ubuntu/linux-aws-5.8*
ubuntu/linux-azure<5.4.0-1154.161
5.4.0-1154.161
ubuntu/linux-azure-5.11*
ubuntu/linux-azure-5.13*
ubuntu/linux-azure-5.15<5.15.0-1097.106~20.04.1
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ubuntu/linux-azure-5.8*
ubuntu/linux-azure-fde*
ubuntu/linux-bluefield<5.4.0-1110.117
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ubuntu/linux-gcp<5.4.0-1154.163
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ubuntu/linux-gcp-5.11*
ubuntu/linux-gcp-5.13*
ubuntu/linux-gcp-5.15<5.15.0-1093.102~20.04.1
5.15.0-1093.102~20.04.1
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<5.15.0-157.167~20.04.1
5.15.0-157.167~20.04.1
ubuntu/linux-hwe-5.8*
ubuntu/linux-ibm<5.4.0-1097.102
5.4.0-1097.102
ubuntu/linux-ibm-5.15<5.15.0-1087.90~20.04.1
5.15.0-1087.90~20.04.1
ubuntu/linux-intel-5.13*
ubuntu/linux-intel-iotg-5.15<5.15.0-1088.94~20.04.1
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ubuntu/linux-iot<5.4.0-1055.58
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ubuntu/linux-kvm<5.4.0-1138.147
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ubuntu/linux-lowlatency-hwe-5.15<5.15.0-157.167~20.04.1
5.15.0-157.167~20.04.1
ubuntu/linux-nvidia-tegra-5.15<5.15.0-1046.46~20.04.1
5.15.0-1046.46~20.04.1
ubuntu/linux-oem-5.10*
ubuntu/linux-oem-5.13*
ubuntu/linux-oem-5.6*
ubuntu/linux-oracle<5.4.0-1149.159
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ubuntu/linux-oracle-5.11*
ubuntu/linux-oracle-5.13*
ubuntu/linux-oracle-5.15<5.15.0-1091.97~20.04.1
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ubuntu/linux-oracle-5.8*
ubuntu/linux-raspi<5.4.0-1134.147
5.4.0-1134.147
ubuntu/linux-raspi2*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.11*
ubuntu/linux-riscv-5.15<5.15.0-1088.92~20.04.1
5.15.0-1088.92~20.04.1
ubuntu/linux-riscv-5.8*
ubuntu/linux-xilinx-zynqmp<5.4.0-1069.73
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ubuntu/linux-aws-fips<5.4.0-1151.161+fips1
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ubuntu/linux-azure-fips<5.4.0-1155.162+fips1
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ubuntu/linux-fips<5.4.0-1125.135
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ubuntu/linux-gcp-fips<5.4.0-1154.163+fips1
5.4.0-1154.163+fips1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.15.0-157.167
5.15.0-157.167
ubuntu/linux-allwinner-5.19*
ubuntu/linux-aws<5.15.0-1093.100
5.15.0-1093.100
ubuntu/linux-aws-5.19*
ubuntu/linux-aws-6.2*
ubuntu/linux-aws-6.5*
ubuntu/linux-aws-6.8<6.8.0-1040.42~22.04.1
6.8.0-1040.42~22.04.1
ubuntu/linux-azure<5.15.0-1097.106
5.15.0-1097.106
ubuntu/linux-azure-5.19*
ubuntu/linux-azure-6.2*
ubuntu/linux-azure-6.5*
ubuntu/linux-azure-6.8<6.8.0-1040.46~22.04.1
6.8.0-1040.46~22.04.1
ubuntu/linux-azure-fde<5.15.0-1098.107.1
5.15.0-1098.107.1
ubuntu/linux-azure-fde-5.19*
ubuntu/linux-azure-fde-6.2*
ubuntu/linux-gcp<5.15.0-1093.102
5.15.0-1093.102
ubuntu/linux-gcp-5.19*
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ubuntu/linux-gcp-6.8<6.8.0-1041.43~22.04.1
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ubuntu/linux-gke<5.15.0-1090.96
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ubuntu/linux-gkeop<5.15.0-1076.84
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ubuntu/linux-hwe-5.19*
ubuntu/linux-hwe-6.2*
ubuntu/linux-hwe-6.5*
ubuntu/linux-hwe-6.8<6.8.0-85.85~22.04.1
6.8.0-85.85~22.04.1
ubuntu/linux-ibm<5.15.0-1087.90
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ubuntu/linux-ibm-6.8<6.8.0-1038.38~22.04.1
6.8.0-1038.38~22.04.1
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-intel-iotg<5.15.0-1088.94
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ubuntu/linux-kvm<5.15.0-1089.94
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ubuntu/linux-lowlatency<5.15.0-157.167
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ubuntu/linux-lowlatency-hwe-5.19*
ubuntu/linux-lowlatency-hwe-6.2*
ubuntu/linux-lowlatency-hwe-6.5*
ubuntu/linux-lowlatency-hwe-6.8<6.8.0-85.85.1~22.04.1
6.8.0-85.85.1~22.04.1
ubuntu/linux-nvidia<5.15.0-1088.89
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ubuntu/linux-nvidia-6.2*
ubuntu/linux-nvidia-6.5*
ubuntu/linux-nvidia-6.8<6.8.0-1040.43~22.04.1
6.8.0-1040.43~22.04.1
ubuntu/linux-nvidia-tegra<5.15.0-1046.46
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ubuntu/linux-nvidia-tegra-igx<5.15.0-1035.35
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ubuntu/linux-oem-5.17*
ubuntu/linux-oem-6.0*
ubuntu/linux-oem-6.1*
ubuntu/linux-oem-6.5*
ubuntu/linux-oracle<5.15.0-1091.97
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ubuntu/linux-oracle-6.5*
ubuntu/linux-oracle-6.8<6.8.0-1037.38~22.04.1
6.8.0-1037.38~22.04.1
ubuntu/linux-raspi<5.15.0-1087.90
5.15.0-1087.90
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.19*
ubuntu/linux-riscv-6.5*
ubuntu/linux-riscv-6.8<6.8.0-86.87~22.04.1
6.8.0-86.87~22.04.1
ubuntu/linux-starfive-5.19*
ubuntu/linux-starfive-6.2*
ubuntu/linux-starfive-6.5*
ubuntu/linux-xilinx-zynqmp<5.15.0-1057.61
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ubuntu/linux-realtime-6.8<6.8.1-1035.36~22.04.1
6.8.1-1035.36~22.04.1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-aws-fips<5.15.0-1093.100+fips1
5.15.0-1093.100+fips1
ubuntu/linux-azure-fips<5.15.0-1097.106+fips1
5.15.0-1097.106+fips1
ubuntu/linux-fips<5.15.0-157.167+fips1
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ubuntu/linux-gcp-fips<5.15.0-1093.102+fips1
5.15.0-1093.102+fips1
ubuntu/linux<6.8.0-85.85
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ubuntu/linux-aws<6.8.0-1040.42
6.8.0-1040.42
ubuntu/linux-aws-6.14<6.14.0-1014.14~24.04.1
6.14.0-1014.14~24.04.1
ubuntu/linux-azure<6.8.0-1040.46
6.8.0-1040.46
ubuntu/linux-azure-6.11*
ubuntu/linux-azure-6.14<6.14.0-1013.13~24.04.1
6.14.0-1013.13~24.04.1
ubuntu/linux-azure-nvidia<6.8.0-1025.27
6.8.0-1025.27
ubuntu/linux-azure-nvidia-6.14<6.14.0-1007.7
6.14.0-1007.7
ubuntu/linux-gcp<6.8.0-1041.43
6.8.0-1041.43
ubuntu/linux-gcp-6.11*
ubuntu/linux-gcp-6.14<6.14.0-1017.18~24.04.1
6.14.0-1017.18~24.04.1
ubuntu/linux-gke<6.8.0-1037.41
6.8.0-1037.41
ubuntu/linux-gkeop<6.8.0-1024.26
6.8.0-1024.26
ubuntu/linux-hwe-6.11*
ubuntu/linux-ibm<6.8.0-1038.38
6.8.0-1038.38
ubuntu/linux-intel*
ubuntu/linux-lowlatency<6.8.0-85.85.1
6.8.0-85.85.1
ubuntu/linux-lowlatency-hwe-6.11*
ubuntu/linux-nvidia<6.8.0-1040.43
6.8.0-1040.43
ubuntu/linux-nvidia-6.11*
ubuntu/linux-nvidia-lowlatency<6.8.0-1040.43.1
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ubuntu/linux-nvidia-tegra<6.8.0-1012.12
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ubuntu/linux-oem-6.11*
ubuntu/linux-oem-6.14<6.14.0-1013.13
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ubuntu/linux-oem-6.8*
ubuntu/linux-oracle<6.8.0-1037.38
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ubuntu/linux-oracle-6.14<6.14.0-1014.14~24.04.1
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ubuntu/linux-raspi<6.8.0-1040.44
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ubuntu/linux-raspi-realtime*
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-6.14<6.14.0-33.33.1~24.04.1
6.14.0-33.33.1~24.04.1
ubuntu/linux-xilinx<6.8.0-1018.19
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ubuntu/linux-bluefield<6.8.0-1012.16
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ubuntu/linux-raspi-realtime<6.8.0-2031.32
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ubuntu/linux-realtime<6.8.1-1035.36
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ubuntu/linux-realtime-6.14<6.14.0-1013.13~24.04.1
6.14.0-1013.13~24.04.1
ubuntu/linux-aws-fips<6.8.0-1040.42+fips1
6.8.0-1040.42+fips1
ubuntu/linux-azure-fips<6.8.0-1040.46+fips1
6.8.0-1040.46+fips1
ubuntu/linux-fips<6.8.0-85.85+fips1
6.8.0-85.85+fips1
ubuntu/linux-gcp-fips<6.8.0-1041.43+fips1
6.8.0-1041.43+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.

  1. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 4.15.0-1193.208~14.04.1
  2. Upgrade

    Upgrade ubuntu/linux-aws-hwe to a version that resolves this vulnerability.

    Fixed in 4.15.0-1185.198~16.04.1
  3. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 4.15.0-1193.208~16.04.1
  4. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 4.15.0-1178.195~16.04.1
  5. Upgrade

    Upgrade ubuntu/linux-hwe to a version that resolves this vulnerability.

    Fixed in 4.15.0-242.254~16.04.1
  6. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 4.15.0-1148.159~16.04.1
  7. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 4.15.0-242.254
  8. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 4.15.0-1185.198
  9. Upgrade

    Upgrade ubuntu/linux-aws-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1151.161~18.04.1
  10. Upgrade

    Upgrade ubuntu/linux-azure-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1193.208
  11. Upgrade

    Upgrade ubuntu/linux-azure-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1154.161~18.04.1
  12. Upgrade

    Upgrade ubuntu/linux-gcp-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1178.195
  13. Upgrade

    Upgrade ubuntu/linux-gcp-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1154.163~18.04.1
  14. Upgrade

    Upgrade ubuntu/linux-hwe-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-222.242~18.04.1
  15. Upgrade

    Upgrade ubuntu/linux-ibm-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1097.102~18.04.1
  16. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 4.15.0-1168.173
  17. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 4.15.0-1147.158
  18. Upgrade

    Upgrade ubuntu/linux-oracle-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1149.159~18.04.1
  19. Upgrade

    Upgrade ubuntu/linux-raspi-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1134.147~18.04.1
  20. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-2123.129
  21. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-2102.108
  22. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-1140.151
  23. Upgrade

    Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-2086.92
  24. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 5.4.0-222.242
  25. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 5.4.0-1151.161
  26. Upgrade

    Upgrade ubuntu/linux-aws-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1093.100~20.04.1
  27. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 5.4.0-1154.161
  28. Upgrade

    Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1097.106~20.04.1
  29. Upgrade

    Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.

    Fixed in 5.4.0-1110.117
  30. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 5.4.0-1154.163
  31. Upgrade

    Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1093.102~20.04.1
  32. Upgrade

    Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-157.167~20.04.1
  33. Upgrade

    Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.

    Fixed in 5.4.0-1097.102
  34. Upgrade

    Upgrade ubuntu/linux-ibm-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1087.90~20.04.1
  35. Upgrade

    Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1088.94~20.04.1
  36. Upgrade

    Upgrade ubuntu/linux-iot to a version that resolves this vulnerability.

    Fixed in 5.4.0-1055.58
  37. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 5.4.0-1138.147
  38. Upgrade

    Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-157.167~20.04.1
  39. Upgrade

    Upgrade ubuntu/linux-nvidia-tegra-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1046.46~20.04.1
  40. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 5.4.0-1149.159
  41. Upgrade

    Upgrade ubuntu/linux-oracle-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1091.97~20.04.1
  42. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 5.4.0-1134.147
  43. Upgrade

    Upgrade ubuntu/linux-riscv-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1088.92~20.04.1
  44. Upgrade

    Upgrade ubuntu/linux-xilinx-zynqmp to a version that resolves this vulnerability.

    Fixed in 5.4.0-1069.73
  45. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1151.161+fips1
  46. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1155.162+fips1
  47. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1125.135
  48. Upgrade

    Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1154.163+fips1
  49. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 5.15.0-157.167
  50. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 5.15.0-1093.100
  51. Upgrade

    Upgrade ubuntu/linux-aws-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1040.42~22.04.1
  52. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 5.15.0-1097.106
  53. Upgrade

    Upgrade ubuntu/linux-azure-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1040.46~22.04.1
  54. Upgrade

    Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.

    Fixed in 5.15.0-1098.107.1
  55. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 5.15.0-1093.102
  56. Upgrade

    Upgrade ubuntu/linux-gcp-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1041.43~22.04.1
  57. Upgrade

    Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.

    Fixed in 5.15.0-1090.96
  58. Upgrade

    Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.

    Fixed in 5.15.0-1076.84
  59. Upgrade

    Upgrade ubuntu/linux-hwe-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-85.85~22.04.1
  60. Upgrade

    Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.

    Fixed in 5.15.0-1087.90
  61. Upgrade

    Upgrade ubuntu/linux-ibm-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1038.38~22.04.1
  62. Upgrade

    Upgrade ubuntu/linux-intel-iotg to a version that resolves this vulnerability.

    Fixed in 5.15.0-1088.94
  63. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 5.15.0-1089.94
  64. Upgrade

    Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.15.0-157.167
  65. Upgrade

    Upgrade ubuntu/linux-lowlatency-hwe-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-85.85.1~22.04.1
  66. Upgrade

    Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.

    Fixed in 5.15.0-1088.89
  67. Upgrade

    Upgrade ubuntu/linux-nvidia-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1040.43~22.04.1
  68. Upgrade

    Upgrade ubuntu/linux-nvidia-tegra to a version that resolves this vulnerability.

    Fixed in 5.15.0-1046.46
  69. Upgrade

    Upgrade ubuntu/linux-nvidia-tegra-igx to a version that resolves this vulnerability.

    Fixed in 5.15.0-1035.35
  70. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 5.15.0-1091.97
  71. Upgrade

    Upgrade ubuntu/linux-oracle-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1037.38~22.04.1
  72. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 5.15.0-1087.90
  73. Upgrade

    Upgrade ubuntu/linux-riscv-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-86.87~22.04.1
  74. Upgrade

    Upgrade ubuntu/linux-xilinx-zynqmp to a version that resolves this vulnerability.

    Fixed in 5.15.0-1057.61
  75. Upgrade

    Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.

    Fixed in 5.15.0-1077.79
  76. Upgrade

    Upgrade ubuntu/linux-intel-iot-realtime to a version that resolves this vulnerability.

    Fixed in 5.15.0-1086.88
  77. Upgrade

    Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.

    Fixed in 5.15.0-1093.102
  78. Upgrade

    Upgrade ubuntu/linux-realtime-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.1-1035.36~22.04.1
  79. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 5.15.0-1093.100+fips1
  80. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 5.15.0-1097.106+fips1
  81. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 5.15.0-157.167+fips1
  82. Upgrade

    Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.

    Fixed in 5.15.0-1093.102+fips1
  83. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 6.8.0-85.85
  84. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 6.8.0-1040.42
  85. Upgrade

    Upgrade ubuntu/linux-aws-6.14 to a version that resolves this vulnerability.

    Fixed in 6.14.0-1014.14~24.04.1
  86. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 6.8.0-1040.46
  87. Upgrade

    Upgrade ubuntu/linux-azure-6.14 to a version that resolves this vulnerability.

    Fixed in 6.14.0-1013.13~24.04.1
  88. Upgrade

    Upgrade ubuntu/linux-azure-nvidia to a version that resolves this vulnerability.

    Fixed in 6.8.0-1025.27
  89. Upgrade

    Upgrade ubuntu/linux-azure-nvidia-6.14 to a version that resolves this vulnerability.

    Fixed in 6.14.0-1007.7
  90. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 6.8.0-1041.43
  91. Upgrade

    Upgrade ubuntu/linux-gcp-6.14 to a version that resolves this vulnerability.

    Fixed in 6.14.0-1017.18~24.04.1
  92. Upgrade

    Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.

    Fixed in 6.8.0-1037.41
  93. Upgrade

    Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.

    Fixed in 6.8.0-1024.26
  94. Upgrade

    Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.

    Fixed in 6.8.0-1038.38
  95. Upgrade

    Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.

    Fixed in 6.8.0-85.85.1
  96. Upgrade

    Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.

    Fixed in 6.8.0-1040.43
  97. Upgrade

    Upgrade ubuntu/linux-nvidia-lowlatency to a version that resolves this vulnerability.

    Fixed in 6.8.0-1040.43.1
  98. Upgrade

    Upgrade ubuntu/linux-nvidia-tegra to a version that resolves this vulnerability.

    Fixed in 6.8.0-1012.12
  99. Upgrade

    Upgrade ubuntu/linux-oem-6.14 to a version that resolves this vulnerability.

    Fixed in 6.14.0-1013.13
  100. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 6.8.0-1037.38
  101. Upgrade

    Upgrade ubuntu/linux-oracle-6.14 to a version that resolves this vulnerability.

    Fixed in 6.14.0-1014.14~24.04.1
  102. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 6.8.0-1040.44
  103. Upgrade

    Upgrade ubuntu/linux-riscv-6.14 to a version that resolves this vulnerability.

    Fixed in 6.14.0-33.33.1~24.04.1
  104. Upgrade

    Upgrade ubuntu/linux-xilinx to a version that resolves this vulnerability.

    Fixed in 6.8.0-1018.19
  105. Upgrade

    Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.

    Fixed in 6.8.0-1012.16
  106. Upgrade

    Upgrade ubuntu/linux-raspi-realtime to a version that resolves this vulnerability.

    Fixed in 6.8.0-2031.32
  107. Upgrade

    Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.

    Fixed in 6.8.1-1035.36
  108. Upgrade

    Upgrade ubuntu/linux-realtime-6.14 to a version that resolves this vulnerability.

    Fixed in 6.14.0-1013.13~24.04.1
  109. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 6.8.0-1040.42+fips1
  110. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 6.8.0-1040.46+fips1
  111. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 6.8.0-85.85+fips1
  112. Upgrade

    Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.

    Fixed in 6.8.0-1041.43+fips1
  113. Upgrade

    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

Event History

Jul 28, 2025
CVE Published
via MITRE·11:21 AM
Data Sourced
via MITRE·11:21 AM
DescriptionSeverity
Data Sourced
via Red Hat·12:03 PM
DescriptionSeverityAffected Software
Data Sourced
via OSV·12:15 PM
DescriptionSeverityAffected Software
Event
via OSV·12:15 PM
Data Sourced
via NVD·12:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Sep 4, 2025
Data Sourced
via Microsoft·01:03 AM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2025-38477?

CVE-2025-38477 has a medium severity rating due to the potential for a race condition that can affect system stability.

2

How do I fix CVE-2025-38477?

To mitigate CVE-2025-38477, update to the latest version of the Linux kernel where this race condition has been resolved.

3

What are the potential impacts of CVE-2025-38477?

CVE-2025-38477 can lead to unexpected behavior or crashes in systems utilizing the affected Linux kernel functionality.

4

Which versions of the Linux kernel are affected by CVE-2025-38477?

CVE-2025-38477 affects certain versions of the Linux kernel prior to the fix being implemented.

5

Is CVE-2025-38477 exploitable remotely?

CVE-2025-38477 primarily involves a race condition that could be exploited locally, thus it may not pose a direct remote attack vector.

Company

Resources

Contact

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