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CVE-2025-40317

12
FAUCET Score

CVE-2025-40317 is a Linux kernel vulnerability affecting the regmap slimbus driver, specifically concerning the incorrect use of the bus_context pointer during regmap initialization. This flaw can lead to kernel panics and system instability, as demonstrated by audio playback failures on devices like the sdm845 Thundercomm Dragonboard 845c. The vulnerability has a FAUCET Risk Score of 7/100, indicating a low severity, and there is no public information regarding active exploitation, exploit code availability, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
LinuxLinux
4.16CNA affecteddefault affected
LinuxLinux
>= 7d6f7fb053ad543da74119df3c4cd7bb46220471, < 02d3041caaa3fe4dd69e5a8afd1ac6b918ddc6a1, >= 7d6f7fb053ad543da74119df3c4cd7bb46220471, < 2664bfd8969d1c43dcbe3ea313f130dfa6b74f4c, >= 7d6f7fb053ad543da74119df3c4cd7bb46220471, < 434f7349a1f00618a620b316f091bd13a12bc8d2, >= 7d6f7fb053ad543da74119df3c4cd7bb46220471, < 8143e4075d131c528540417a51966f6697be14eb, >= 7d6f7fb053ad543da74119df3c4cd7bb46220471, < a16e92f8d7dc7371e68f17a9926cb92d2244be7b, >= 7d6f7fb053ad543da74119df3c4cd7bb46220471, < b65f3303349eaee333e47d2a99045aa12fa0c3a7, >= 7d6f7fb053ad543da74119df3c4cd7bb46220471, < c0f05129e5734ff3fd14b2c242709314d9ca5433, >= 7d6f7fb053ad543da74119df3c4cd7bb46220471, < d979639f099c6e51f06ce4dd8d8e56364d6c17baCNA affecteddefault unaffected

CVSS Data

CVSS data has not been published for this CVE.

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
7.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15

Social Chatter

Media Mentions

Remediation

Patch Available

Vendor Patches (60)

ubuntupatch availablevia ubuntu_usn
Product: linux-azure (questing)Fixed in: 6.17.0-1008.8
ubuntupatch availablevia ubuntu_usn
Product: linux-fips (jammy)Fixed in: 5.15.0-173.183+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-fips (jammy)Fixed in: 5.15.0-1103.112+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-aws-fips (noble)Fixed in: 6.8.0-1050.53+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-aws-fips (jammy)Fixed in: 5.15.0-1103.110+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-fips (noble)Fixed in: 6.8.0-106.106+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-fips (noble)Fixed in: 6.8.0-1052.55+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-6.8 (jammy)Fixed in: 6.8.0-1049.52~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia (noble)Fixed in: 6.8.0-1049.52
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-lowlatency (noble)Fixed in: 6.8.0-1049.52.1
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm-5.15 (focal)Fixed in: 5.15.0-1097.100~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-tegra-5.15 (focal)Fixed in: 5.15.0-1055.55~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux (jammy)Fixed in: 5.15.0-173.183
ubuntupatch availablevia ubuntu_usn
Product: linux-aws (jammy)Fixed in: 5.15.0-1103.110
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp (jammy)Fixed in: 5.15.0-1103.112
ubuntupatch availablevia ubuntu_usn
Product: linux-gkeop (jammy)Fixed in: 5.15.0-1086.94
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm (jammy)Fixed in: 5.15.0-1097.100
ubuntupatch availablevia ubuntu_usn
Product: linux-intel-iotg (jammy)Fixed in: 5.15.0-1098.104
ubuntupatch availablevia ubuntu_usn
Product: linux-kvm (jammy)Fixed in: 5.15.0-1095.100
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency (jammy)Fixed in: 5.15.0-173.183
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia (jammy)Fixed in: 5.15.0-1098.99
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-tegra (jammy)Fixed in: 5.15.0-1055.55
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle (jammy)Fixed in: 5.15.0-1100.106
ubuntupatch availablevia ubuntu_usn
Product: linux-xilinx-zynqmp (jammy)Fixed in: 5.15.0-1067.71
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-6.8 (jammy)Fixed in: 6.8.0-1052.55~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-hwe-6.8 (jammy)Fixed in: 6.8.0-106.106~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm-6.8 (jammy)Fixed in: 6.8.0-1049.49~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency-hwe-6.8 (jammy)Fixed in: 6.8.0-106.106.1~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle-6.8 (jammy)Fixed in: 6.8.0-1047.48~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux (noble)Fixed in: 6.8.0-106.106
ubuntupatch availablevia ubuntu_usn
Product: linux-aws (noble)Fixed in: 6.8.0-1050.53
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp (noble)Fixed in: 6.8.0-1052.55
ubuntupatch availablevia ubuntu_usn
Product: linux-gke (noble)Fixed in: 6.8.0-1048.53
ubuntupatch availablevia ubuntu_usn
Product: linux-gkeop (noble)Fixed in: 6.8.0-1035.38
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm (noble)Fixed in: 6.8.0-1049.49
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency (noble)Fixed in: 6.8.0-106.106.1
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle (noble)Fixed in: 6.8.0-1047.48
ubuntupatch availablevia ubuntu_usn
Product: linux-realtime (jammy)Fixed in: 5.15.0-1102.111
ubuntupatch availablevia ubuntu_usn
Product: linux-aws-5.15 (focal)Fixed in: 5.15.0-1103.110~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-5.15 (focal)Fixed in: 5.15.0-1103.112~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-hwe-5.15 (focal)Fixed in: 5.15.0-173.183~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-intel-iotg-5.15 (focal)Fixed in: 5.15.0-1098.104~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency-hwe-5.15 (focal)Fixed in: 5.15.0-173.183~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle-5.15 (focal)Fixed in: 5.15.0-1100.106~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-gke (jammy)Fixed in: 5.15.0-1099.105
ubuntupatch availablevia ubuntu_usn
Product: linux-realtime-6.8 (jammy)Fixed in: 6.8.1-1045.46~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-realtime (noble)Fixed in: 6.8.1-1045.46
ubuntupatch availablevia ubuntu_usn
Product: linux-aws-6.8 (jammy)Fixed in: 6.8.0-1050.53~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-tegra-igx (jammy)Fixed in: 5.15.0-1044.44
ubuntupatch availablevia ubuntu_usn
Product: linux-intel-iot-realtime (jammy)Fixed in: 5.15.0-1094.96
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-6.8 (jammy)Fixed in: 6.8.0-1051.57~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-azure (noble)Fixed in: 6.8.0-1051.57
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-5.15 (focal)Fixed in: 5.15.0-1110.119~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-xilinx (noble)Fixed in: 6.8.0-1029.30
ubuntupatch availablevia ubuntu_usn
Product: linux-raspi (noble)Fixed in: 6.8.0-1050.54
ubuntupatch availablevia ubuntu_usn
Product: linux-raspi-realtime (noble)Fixed in: 6.8.0-2040.41
ubuntupatch availablevia ubuntu_usn
Product: linux-raspi (jammy)Fixed in: 5.15.0-1097.100
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-fips (noble)Fixed in: 6.8.0-1052.58+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-fips (jammy)Fixed in: 5.15.0-1109.118+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-azure (jammy)Fixed in: 5.15.0-1109.118

Vendor Advisories (23)

ubuntuUSN-8261-1

Linux kernel (Xilinx) vulnerabilities

May 7, 2026
ubuntuUSN-8243-1

Linux kernel (Azure) vulnerabilities

May 7, 2026
ubuntuUSN-8163-2

Linux kernel (Azure) vulnerabilities

Apr 13, 2026
ubuntuUSN-8165-1

Linux kernel (Azure FIPS) vulnerabilities

Apr 9, 2026
ubuntuUSN-8163-1

Linux kernel (Azure FIPS) vulnerabilities

Apr 9, 2026
ubuntuUSN-8095-5

Linux kernel (Raspberry Pi) vulnerabilities

Apr 1, 2026
ubuntuUSN-8141-1

Linux kernel (Raspberry Pi) vulnerabilities

Apr 1, 2026
ubuntuUSN-8126-1

Linux kernel (Azure) vulnerabilities

Mar 25, 2026
ubuntuUSN-8125-1

Linux kernel (Azure) vulnerabilities

Mar 25, 2026
ubuntuUSN-8095-4

Linux kernel (AWS) vulnerabilities

Mar 23, 2026
ubuntuUSN-8096-5

Linux kernel (NVIDIA Tegra IGX) vulnerabilities

Mar 23, 2026
ubuntuUSN-8116-1

Linux kernel (Intel IoTG Real-time) vulnerabilities

Mar 23, 2026
ubuntuUSN-8096-4

Linux kernel (Real-time) vulnerabilities

Mar 17, 2026
ubuntuUSN-8096-3

Linux kernel vulnerabilities

Mar 17, 2026
ubuntuUSN-8095-3

Linux kernel (Real-time) vulnerabilities

Mar 17, 2026
ubuntuUSN-8096-2

Linux kernel (FIPS) vulnerabilities

Mar 16, 2026
ubuntuUSN-8095-2

Linux kernel (FIPS) vulnerabilities

Mar 16, 2026
ubuntuUSN-8100-1

Linux kernel (NVIDIA) vulnerabilities

Mar 16, 2026
ubuntuUSN-8096-1

Linux kernel vulnerabilities

Mar 16, 2026
ubuntuUSN-8095-1

Linux kernel vulnerabilities

Mar 16, 2026
ubuntuUSN-8029-3

Linux kernel (Azure) vulnerabilities

Feb 24, 2026
microsoft2025-Dec/CVE-2025-40317Moderate

regmap: slimbus: fix bus_context pointer in regmap init calls

Dec 9, 2025
redhatCVE-2025-40317

kernel: regmap: slimbus: fix bus_context pointer in regmap init calls

Dec 8, 2025

References

git.kernel.org / stable/c/02d3041caaa3fe4dd69e5a8afd1ac6b918ddc6a1
git.kernel.org / stable/c/2664bfd8969d1c43dcbe3ea313f130dfa6b74f4c
git.kernel.org / stable/c/434f7349a1f00618a620b316f091bd13a12bc8d2
git.kernel.org / stable/c/8143e4075d131c528540417a51966f6697be14eb
git.kernel.org / stable/c/a16e92f8d7dc7371e68f17a9926cb92d2244be7b
git.kernel.org / stable/c/b65f3303349eaee333e47d2a99045aa12fa0c3a7
git.kernel.org / stable/c/c0f05129e5734ff3fd14b2c242709314d9ca5433
git.kernel.org / stable/c/d979639f099c6e51f06ce4dd8d8e56364d6c17ba