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CVE-2026-31582

In the Linux kernel, the following vulnerability has been resolved: hwmon: (powerz) Fix use-after-free on USB disconnect After powerz_disconnect() frees the URB and releases the mutex, a subsequent powerz_read() call can acquire the mutex and call powerz_read_data(), which dereferences the freed URB pointer. Fix by: - Setting priv->urb to NULL in powerz_disconnect() so that powerz_read_data() can detect the disconnected state. - Adding a !priv->urb check at the start of powerz_read_data(
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dc1b680400d3dcba788224ce8dcedc1ff48fc7d852b4283895b3c534af6963d4
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/hwmon/powerz.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c78e1d4e48f23792adaa7c94251e22b0d9700a39","status":"affected","version":"4381a36abdf1c5c0323c1c51f869dc000115eb20","versionType":"git"},{"lessThan":"9e1b798257f96d2e2a2639830eb71add545ce749","status":"affected","version":"4381a36abdf1c5c0323c1c51f869dc000115eb20","versionType":"git"},{"lessThan":"7003ae4810ca83f0ddca85b768500e313c4b998c","status":"affected","version":"4381a36abdf1c5c0323c1c5…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c5b6f6b86530d4d0f08617369549b75b0f8f93360c59df1f936242524b3240af · sha256:70d135eee209525a… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/hwmon/powerz.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.7"},{"lessThan":"6.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.83","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.24","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.14","versionType":"semver"},{"lessThanO…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c5b6f6b86530d4d0f08617369549b75b0f8f93360c59df1f936242524b3240af · sha256:70d135eee209525a… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/hwmon/powerz.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c78e1d4e48f23792adaa7c94251e22b0d9700a39","status":"affected","version":"4381a36abdf1c5c0323c1c51f869dc000115eb20","versionType":"git"},{"lessThan":"9e1b798257f96d2e2a2639830eb71add545ce749","status":"affected","version":"4381a36abdf1c5c0323c1c51f869dc000115eb20","versionType":"git"},{"lessThan":"7003ae4810ca83f0ddca85b768500e313c4b998c","status":"affected","version":"4381a36abdf1c5c0323c1c5…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c5b6f6b86530d4d0f08617369549b75b0f8f93360c59df1f936242524b3240af · sha256:70d135eee209525a… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/hwmon/powerz.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.7"},{"lessThan":"6.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.83","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.24","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.14","versionType":"semver"},{"lessThanO…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c5b6f6b86530d4d0f08617369549b75b0f8f93360c59df1f936242524b3240af · sha256:70d135eee209525a… · /containers/cna/affected/1

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/08e57f5e1a9067d5fbf33993aa7f51d60b3d13a4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c5b6f6b86530d4d0f08617369549b75b0f8f93360c59df1f936242524b3240af · sha256:70d135eee209525a… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/61f2aa23b0ce8d7aa5071ed25a7471e246a4fdd4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c5b6f6b86530d4d0f08617369549b75b0f8f93360c59df1f936242524b3240af · sha256:70d135eee209525a… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/7003ae4810ca83f0ddca85b768500e313c4b998c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c5b6f6b86530d4d0f08617369549b75b0f8f93360c59df1f936242524b3240af · sha256:70d135eee209525a… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/9e1b798257f96d2e2a2639830eb71add545ce749"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c5b6f6b86530d4d0f08617369549b75b0f8f93360c59df1f936242524b3240af · sha256:70d135eee209525a… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/c78e1d4e48f23792adaa7c94251e22b0d9700a39"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c5b6f6b86530d4d0f08617369549b75b0f8f93360c59df1f936242524b3240af · sha256:70d135eee209525a… · /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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