CVE-2025-68809
ksmbd: vfs: fix race on m_flags in vfs_cache
02 Description
ksmbd: vfs: fix race on m_flags in vfs_cache
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.52% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 44.3% of scored records. A rank, not a probability.
- NVD base score
- 9.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- NVD analysis status
- Deferred. NVD last modified this record on 2026-07-30.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-01-13 15:29Z9 MO AGO
- Last updated
- 2026-08-05 12:11Z2 MO AGO
- Reserved
- 2025-12-24
- Assigning CNA
- Linux
- Record state
- PUBLISHED
- Severity
- Critical (CVSS 9.1)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- Weaknesses
- CWE-366Race Condition within a ThreadBase
- Data version
- 5.2
- Document digest
- 0aadb58cf530a95b760bdb75c9947476bd200eeb1698d5af3ece533e5aebaf0b
05 Affected products
06 References
- git.kernel.orghttps://git.kernel.org/stable/c/5adad9727a815c26013b0d41cfee92ffa7d4037c
- git.kernel.orghttps://git.kernel.org/stable/c/ccc78781041589ea383e61d5d7a1e9a31b210b93
- git.kernel.orghttps://git.kernel.org/stable/c/ee63729760f5b61a66f345c54dc4c7514e62383d
- git.kernel.orghttps://git.kernel.org/stable/c/991f8a79db99b14c48d20d2052c82d65b9186cad
07 Fixed in
Debian 12
- linux No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 6.12.69-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 6.18.3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux-hwe-edge No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux-aws-5.0 No fix yet
- linux-aws-5.3 No fix yet
- linux-azure No fix yet
- linux-azure-5.3 No fix yet
- linux-azure-edge No fix yet
- linux-gcp No fix yet
- linux-gcp-5.3 No fix yet
- linux-gke-4.15 No fix yet
- linux-gke-5.4 No fix yet
- linux-gkeop-5.4 No fix yet
- linux-hwe No fix yet
- linux-hwe-edge No fix yet
- linux-oem No fix yet
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux-aws-5.11 No fix yet
- linux-aws-5.13 No fix yet
- linux-aws-5.8 No fix yet
- linux-azure-5.11 No fix yet
- linux-azure-5.13 No fix yet
- linux-azure-5.8 No fix yet
- linux-azure-fde No fix yet
- linux-gcp-5.11 No fix yet
- linux-gcp-5.13 No fix yet
- linux-gcp-5.8 No fix yet
- linux-gke No fix yet
- linux-gke-5.15 No fix yet
- linux-gkeop No fix yet
- linux-gkeop-5.15 No fix yet
- linux-hwe-5.11 No fix yet
- linux-hwe-5.13 No fix yet
- linux-hwe-5.8 No fix yet
- linux-intel-5.13 No fix yet
- linux-oem-5.10 No fix yet
- linux-oem-5.13 No fix yet
- linux-oem-5.14 No fix yet
- linux-oem-5.6 No fix yet
- linux-oracle-5.11 No fix yet
- linux-oracle-5.13 No fix yet
- linux-oracle-5.8 No fix yet
- linux-raspi2 No fix yet
- linux-riscv No fix yet
- linux-riscv-5.11 No fix yet
- linux-riscv-5.8 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux No fix yet
- linux-allwinner-5.19 No fix yet
- linux-aws No fix yet
- linux-aws-5.19 No fix yet
- linux-aws-6.2 No fix yet
- linux-aws-6.5 No fix yet
- linux-aws-6.8 Fixed in 6.8.0-1052.55~22.04.1
- linux-azure No fix yet
- linux-azure-5.19 No fix yet
- linux-azure-6.2 No fix yet
- linux-azure-6.5 No fix yet
- linux-azure-6.8 Fixed in 6.8.0-1059.65~22.04.1
- linux-azure-fde No fix yet
- linux-azure-fde-5.19 No fix yet
- linux-azure-fde-6.2 No fix yet
- linux-azure-fde-6.8 Fixed in 6.8.0-1058.65~22.04.1
- linux-gcp No fix yet
- linux-gcp-5.19 No fix yet
- linux-gcp-6.2 No fix yet
- linux-gcp-6.5 No fix yet
- linux-gcp-6.8 Fixed in 6.8.0-1054.57~22.04.1
- linux-gke No fix yet
- linux-gkeop No fix yet
- linux-hwe-5.19 No fix yet
- linux-hwe-6.2 No fix yet
- linux-hwe-6.5 No fix yet
- linux-hwe-6.8 Fixed in 6.8.0-110.110~22.04.1
- linux-ibm No fix yet
- linux-ibm-6.8 Fixed in 6.8.0-1051.51~22.04.1
- linux-intel-iot-realtime No fix yet
- linux-intel-iotg No fix yet
- linux-kvm No fix yet
- linux-lowlatency No fix yet
- linux-lowlatency-hwe-5.19 No fix yet
- linux-lowlatency-hwe-6.2 No fix yet
- linux-lowlatency-hwe-6.5 No fix yet
- linux-lowlatency-hwe-6.8 Fixed in 6.8.0-110.110.1~22.04.1
- linux-nvidia No fix yet
- linux-nvidia-6.2 No fix yet
- linux-nvidia-6.5 No fix yet
20 further packages in Ubuntu 22.04 LTS not shown (first 40 listed).
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux Fixed in 6.8.0-110.110
- linux-aws Fixed in 6.8.0-1052.55
- linux-aws-6.14 No fix yet
- linux-aws-6.17 Fixed in 6.17.0-1012.12~24.04.1
- linux-azure Fixed in 6.8.0-1054.60
- linux-azure-6.11 No fix yet
- linux-azure-6.14 No fix yet
- linux-azure-6.17 Fixed in 6.17.0-1013.13~24.04.1
- linux-azure-fde Fixed in 6.8.0-1058.65
- linux-azure-fde-6.14 No fix yet
- linux-azure-nvidia No fix yet
- linux-azure-nvidia-6.14 No fix yet
- linux-gcp Fixed in 6.8.0-1054.57
- linux-gcp-6.11 No fix yet
- linux-gcp-6.14 No fix yet
- linux-gcp-6.17 Fixed in 6.17.0-1012.12~24.04.1
- linux-gke Fixed in 6.8.0-1050.56
- linux-gkeop Fixed in 6.8.0-1037.40
- linux-hwe-6.11 No fix yet
- linux-hwe-6.14 No fix yet
- linux-hwe-6.17 Fixed in 6.17.0-22.22~24.04.1
- linux-ibm Fixed in 6.8.0-1051.51
- linux-lowlatency Fixed in 6.8.0-110.110.1
- linux-lowlatency-hwe-6.11 No fix yet
- linux-nvidia Fixed in 6.8.0-1051.54
- linux-nvidia-6.11 No fix yet
- linux-nvidia-6.17 Fixed in 6.17.0-1018.18
- linux-nvidia-lowlatency Fixed in 6.8.0-1051.54.1
- linux-nvidia-tegra Fixed in 6.8.0-1022.22
- linux-oem-6.11 No fix yet
- linux-oem-6.14 No fix yet
- linux-oem-6.17 Fixed in 6.17.0-1020.20
- linux-oem-6.8 No fix yet
- linux-oracle Fixed in 6.8.0-1049.50
- linux-oracle-6.14 No fix yet
- linux-oracle-6.17 Fixed in 6.17.0-1011.11~24.04.1
- linux-raspi Fixed in 6.8.0-1052.56
- linux-raspi-realtime No fix yet
- linux-realtime No fix yet
- linux-riscv No fix yet
3 further packages in Ubuntu 24.04 LTS not shown (first 40 listed).
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- linux Fixed in 6.17.0-22.22
- linux-aws Fixed in 6.17.0-1012.12
- linux-azure Fixed in 6.17.0-1013.13
- linux-azure-fde No fix yet
- linux-gcp Fixed in 6.17.0-1012.12
- linux-oracle Fixed in 6.17.0-1011.11
- linux-raspi Fixed in 6.17.0-1013.13
- linux-realtime Fixed in 6.17.0-1010.11
- linux-riscv Fixed in 6.17.0-22.22.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Nvidia-BlueField 22.04 LTS
- linux-bluefield No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Nvidia-BlueField 24.04 LTS
- linux-bluefield Fixed in 6.8.0-1017.21
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- linux-aws-5.15 No fix yet
- linux-azure-5.15 No fix yet
- linux-azure-fde-5.15 No fix yet
- linux-gcp-5.15 No fix yet
- linux-hwe-5.15 No fix yet
- linux-ibm-5.15 No fix yet
- linux-intel-iotg-5.15 No fix yet
- linux-lowlatency-hwe-5.15 No fix yet
- linux-nvidia-tegra-5.15 No fix yet
- linux-oracle-5.15 No fix yet
- linux-riscv-5.15 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-preview 22.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 22.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 24.04 LTS
- linux-aws-fips Fixed in 6.8.0-1052.55+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 6.8.0-1053.59+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 6.8.0-110.110+fips2Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 6.8.0-1054.57+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro Realtime 22.04 LTS
- linux-intel-iot-realtime No fix yet
- linux-realtime No fix yet
- linux-realtime-6.8 Fixed in 6.8.1-1047.48~22.04.1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro Realtime 24.04 LTS
- linux-raspi-realtime Fixed in 6.8.0-2042.43Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime Fixed in 6.8.1-1047.48Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime-6.14 No fix yet
- linux-realtime-6.17 Fixed in 6.17.0-1010.11~24.04.1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.