CVE Explorer

CVE-2026-31486

In the Linux kernel, the following vulnerability has been resolved: hwmon: (pmbus/core) Protect regulator operations with mutex The regulator operations pmbus_regulator_get_voltage(), pmbus_regulator_set_voltage(), and pmbus_regulator_list_voltage() access PMBus registers and shared data but were not protected by the update_lock mutex. This could lead to race conditions. However, adding mutex protection directly to these functions causes a deadlock because pmbus_regulator_notify() (which call

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6207e200acb638a00ce95b01778b447a782a95ec56e39cf90606793f133fc34e

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/hwmon/pmbus/pmbus_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b26849cffaa7c43355b82e9bef3725e786973a1a","status":"affected","version":"ddbb4db4ced1ba784fcd3500179a7291b6c5d7b7","versionType":"git"},{"lessThan":"acf04e2863132f6d9222f71f3a76fb9782cbe061","status":"affected","version":"ddbb4db4ced1ba784fcd3500179a7291b6c5d7b7","versionType":"git"},{"lessThan":"4e9d723d9f198b86f6882a84c501ba1f39e8d055","status":"affected","version":"ddbb4db4ced1b…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:5ff2eea17f97db9babd8d23892d49743ec73dc1c1e6ad4b13788a1a8577faf09 · sha256:7105674a8ba86cf5… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/hwmon/pmbus/pmbus_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.19"},{"lessThan":"3.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.92","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:5ff2eea17f97db9babd8d23892d49743ec73dc1c1e6ad4b13788a1a8577faf09 · sha256:7105674a8ba86cf5… · /containers/cna/affected/1

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:5ff2eea17f97db9babd8d23892d49743ec73dc1c1e6ad4b13788a1a8577faf09 · sha256:7105674a8ba86cf5… · /containers/cna/affected/0

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:5ff2eea17f97db9babd8d23892d49743ec73dc1c1e6ad4b13788a1a8577faf09 · sha256:7105674a8ba86cf5… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:5ff2eea17f97db9babd8d23892d49743ec73dc1c1e6ad4b13788a1a8577faf09 · sha256:7105674a8ba86cf5… · /containers/cna/metrics/0/cvssV3_1

Source references

5 source assertions

{"url":"https://git.kernel.org/stable/c/2c77ae315f3ce9d2c8e1609be74c9358c1fe4e07"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5ff2eea17f97db9babd8d23892d49743ec73dc1c1e6ad4b13788a1a8577faf09 · sha256:7105674a8ba86cf5… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/4e9d723d9f198b86f6882a84c501ba1f39e8d055"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5ff2eea17f97db9babd8d23892d49743ec73dc1c1e6ad4b13788a1a8577faf09 · sha256:7105674a8ba86cf5… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/754bd2b4a084b90b5e7b630e1f423061a9b9b761"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5ff2eea17f97db9babd8d23892d49743ec73dc1c1e6ad4b13788a1a8577faf09 · sha256:7105674a8ba86cf5… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/acf04e2863132f6d9222f71f3a76fb9782cbe061"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5ff2eea17f97db9babd8d23892d49743ec73dc1c1e6ad4b13788a1a8577faf09 · sha256:7105674a8ba86cf5… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/b26849cffaa7c43355b82e9bef3725e786973a1a"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5ff2eea17f97db9babd8d23892d49743ec73dc1c1e6ad4b13788a1a8577faf09 · sha256:7105674a8ba86cf5… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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