CVE-2025-38461: vsock: Fix transport_* TOCTOU

Modified

AliasesRHSA-2025:16373UBUNTU-CVE-2025-38461DEBIAN-CVE-2025-38461

Published 25-07-2025Last modified 05-08-2026

Vulnerability summary

CVE-2025-38461 is a high (CVSS 7.0) vulnerability in debian debian_linux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.5% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

7.0/10

010

High · v3.1 (CVE.org)

EPSS score

0.14%

0%100%

Low · +0.02 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 64 · Related 47

DLA-4327-1 DLA-4328-1 DSA-5973-1 DSA-5975-1 MGASA-2025-0218 MGASA-2025-0219+58 more

Timeline

25-07-2025
PublishedVulnerability first disclosed.
05-08-2026
Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: vsock: Fix transport_* TOCTOU Transport assignment may race with module unload. Protect new_transport from becoming a stale pointer. This also takes care of an insecure call in vsock_use_local_transport(); add a lockdep assert. BUG: unable to handle page fault for address: fffffbfff8056000 Oops: Oops: 0000 [#1] SMP KASAN RIP: 0010:vsock_assign_transport+0x366/0x600 Call Trace: vsock_connect+0x59c/0xc40 __sys_connect+0xe8/0x100 __x64_sys_connect+0x6e/0xc0 do_syscall_64+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x4b/0x53

CVSS metrics

5 scores · 5 sources · 1 version

v3.17.0

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

Versus all other CVEs

30-day change

Increase +0.02 pp

From 0.13% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionThe product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu135 products

linux< 5.15.0-156.166 | < 6.8.0-100.100
linux-allwinner-5.19All versions (No fix recorded)
linux-aws< 5.15.0-1092.99 | < 6.8.0-1046.49
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11All versions (No fix recorded)

linux-aws-5.13All versions (No fix recorded)
linux-aws-5.15< 5.15.0-1092.99~20.04.1
linux-aws-5.19All versions (No fix recorded)
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.8All versions (No fix recorded)
linux-aws-6.14< 6.14.0-1017.17~24.04.1
linux-aws-6.2All versions (No fix recorded)
linux-aws-6.5All versions (No fix recorded)
linux-aws-6.8< 6.8.0-1046.49~22.04.1
linux-aws-fipsAll versions (No fix recorded) | < 5.15.0-1092.99+fips1 | < 6.8.0-1046.49+fips1
linux-azureAll versions (No fix recorded) | < 5.15.0-1096.105 | < 6.8.0-1046.52
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1096.105~20.04.1
linux-azure-5.19All versions (No fix recorded)
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.8All versions (No fix recorded)
linux-azure-6.11All versions (No fix recorded)
linux-azure-6.14< 6.14.0-1017.17~24.04.1
linux-azure-6.2All versions (No fix recorded)
linux-azure-6.5All versions (No fix recorded)
linux-azure-6.8< 6.8.0-1051.57~22.04.1
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fdeAll versions (No fix recorded) | < 5.15.0-1096.105.1 | < 6.8.0-1046.53
linux-azure-fde-5.19All versions (No fix recorded)
linux-azure-fde-6.14All versions (No fix recorded)
linux-azure-fde-6.2All versions (No fix recorded)
linux-azure-fde-6.8< 6.8.0-1046.53~22.04.1
linux-azure-fipsAll versions (No fix recorded) | < 5.15.0-1096.105+fips1 | < 6.8.0-1046.52+fips1
linux-azure-nvidiaAll versions (No fix recorded)
linux-azure-nvidia-6.14All versions (No fix recorded)
linux-bluefield< 5.15.0-1076.78 | < 6.8.0-1016.20
linux-fipsAll versions (No fix recorded) | < 5.15.0-156.166+fips1 | < 6.8.0-100.100+fips1
linux-gcpAll versions (No fix recorded) | < 5.15.0-1092.101 | < 6.8.0-1047.50
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1092.101~20.04.1
linux-gcp-5.19All versions (No fix recorded)
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-6.11All versions (No fix recorded)
linux-gcp-6.14< 6.14.0-1020.21~24.04.1
linux-gcp-6.2All versions (No fix recorded)
linux-gcp-6.5All versions (No fix recorded)
linux-gcp-6.8< 6.8.0-1047.50~22.04.2
linux-gcp-fipsAll versions (No fix recorded) | < 5.15.0-1092.101+fips1 | < 6.8.0-1047.50+fips1
linux-gkeAll versions (No fix recorded) | < 5.15.0-1089.95 | < 6.8.0-1043.48
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15All versions (No fix recorded)
linux-gke-5.4All versions (No fix recorded)
linux-gkeopAll versions (No fix recorded) | < 5.15.0-1075.83 | < 6.8.0-1030.33
linux-gkeop-5.15All versions (No fix recorded)
linux-gkeop-5.4All versions (No fix recorded)
linux-hweAll versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.15< 5.15.0-156.166~20.04.1
linux-hwe-5.19All versions (No fix recorded)
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-6.11All versions (No fix recorded)
linux-hwe-6.2All versions (No fix recorded)
linux-hwe-6.5All versions (No fix recorded)
linux-hwe-6.8< 6.8.0-100.100~22.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.15.0-1086.89 | < 6.8.0-1044.44
linux-ibm-5.15< 5.15.0-1086.89~20.04.1
linux-ibm-6.8< 6.8.0-1044.44~22.04.1
linux-intelAll versions (No fix recorded)
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded) | < 5.15.0-1085.87
linux-intel-iotg< 5.15.0-1087.93
linux-intel-iotg-5.15< 5.15.0-1087.93~20.04.1
linux-kvm< 5.15.0-1088.93
linux-lowlatency< 5.15.0-156.166 | < 6.8.0-100.100.1
linux-lowlatency-hwe-5.15< 5.15.0-156.166~20.04.1
linux-lowlatency-hwe-5.19All versions (No fix recorded)
linux-lowlatency-hwe-6.11All versions (No fix recorded)
linux-lowlatency-hwe-6.2All versions (No fix recorded)
linux-lowlatency-hwe-6.5All versions (No fix recorded)
linux-lowlatency-hwe-6.8< 6.8.0-100.100.1~22.04.1
linux-nvidia< 5.15.0-1087.88 | < 6.8.0-1046.49
linux-nvidia-6.11All versions (No fix recorded)
linux-nvidia-6.2All versions (No fix recorded)
linux-nvidia-6.5All versions (No fix recorded)
linux-nvidia-6.8< 6.8.0-1046.49~22.04.1
linux-nvidia-lowlatency< 6.8.0-1046.49.1
linux-nvidia-tegra< 5.15.0-1045.45 | < 6.8.0-1020.20
linux-nvidia-tegra-5.15< 5.15.0-1045.45~20.04.1
linux-nvidia-tegra-igx< 5.15.0-1034.34
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14All versions (No fix recorded)
linux-oem-5.17All versions (No fix recorded)
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0All versions (No fix recorded)
linux-oem-6.1All versions (No fix recorded)
linux-oem-6.11All versions (No fix recorded)
linux-oem-6.14< 6.14.0-1016.16
linux-oem-6.5All versions (No fix recorded)
linux-oem-6.8All versions (No fix recorded)
linux-oracle< 5.15.0-1090.96 | < 6.8.0-1043.44
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11All versions (No fix recorded)
linux-oracle-5.13All versions (No fix recorded)
linux-oracle-5.15< 5.15.0-1090.96~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.8All versions (No fix recorded)
linux-oracle-6.14< 6.14.0-1017.17~24.04.1
linux-oracle-6.5All versions (No fix recorded)
linux-oracle-6.8< 6.8.0-1043.44~22.04.1
linux-raspi< 5.15.0-1086.89 | < 6.8.0-1047.51
linux-raspi-realtimeAll versions (No fix recorded) | < 6.8.0-2037.38
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1092.101 | < 6.8.1-1041.42
linux-realtime-6.14< 6.14.0-1016.16~24.04.1
linux-realtime-6.8< 6.8.1-1041.42~22.04.1
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1087.91~20.04.1
linux-riscv-5.19All versions (No fix recorded)
linux-riscv-5.8All versions (No fix recorded)
linux-riscv-6.14< 6.14.0-36.36.1~24.04.1
linux-riscv-6.5All versions (No fix recorded)
linux-riscv-6.8< 6.8.0-100.100~22.04.1
linux-starfive-5.19All versions (No fix recorded)
linux-starfive-6.2All versions (No fix recorded)
linux-starfive-6.5All versions (No fix recorded)
linux-xilinx< 6.8.0-1023.24
linux-xilinx-zynqmp< 5.15.0-1056.60

Show all 135

Redhat15 products

kernel-rt< 0:4.18.0-553.76.1.rt7.417.el8_10
kernel-rt-core< 0:4.18.0-553.76.1.rt7.417.el8_10
kernel-rt-debug< 0:4.18.0-553.76.1.rt7.417.el8_10
kernel-rt-debug-core< 0:4.18.0-553.76.1.rt7.417.el8_10
kernel-rt-debug-debuginfo< 0:4.18.0-553.76.1.rt7.417.el8_10

Show all 15

Debian2 products

linux< 6.1.147-1 | < 6.12.41-1 | < 6.16.3-1
debian_linuxEOL11.0

Linux2 products

linux≥ c0cfa2d8a788fcf45df5bf4070ab2474c88d543a, < 8667e8d0eb46bc54fdae30ba2f4786407d3d88eb | ≥ c0cfa2d8a788fcf45df5bf4070ab2474c88d543a, < 36a439049b34cca0b3661276049b84a1f76cc21a | ≥ c0cfa2d8a788fcf45df5bf4070ab2474c88d543a, < 9ce53e744f18e73059d3124070e960f3aa9902bf | ≥ c0cfa2d8a788fcf45df5bf4070ab2474c88d543a, < 9d24bb6780282b0255b9929abe5e8f98007e2c6e | ≥ c0cfa2d8a788fcf45df5bf4070ab2474c88d543a, < ae2c712ba39c7007de63cb0c75b51ce1caaf1da5 | ≥ c0cfa2d8a788fcf45df5bf4070ab2474c88d543a, < 7b73bddf54777fb62d4d8c7729d0affe6df04477 | ≥ c0cfa2d8a788fcf45df5bf4070ab2474c88d543a, < 687aa0c5581b8d4aa87fd92973e4ee576b550cdf | 5.5
linux_kernel≥ 5.5, < 5.10.240 | ≥ 5.11, < 5.15.189 | ≥ 5.16, < 6.1.146 | ≥ 6.2, < 6.6.99 | ≥ 6.7, < 6.12.39 | ≥ 6.13, < 6.15.7 | 6.16:rc1 | 6.16:rc2 | 6.16:rc3 | 6.16:rc4 | 6.16:rc5

4 vendors · 154 products