CVE-2026-46168 (GCVE-0-2026-46168)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:36 – Updated: 2026-05-28 09:36
VLAI
Title
mptcp: fix scheduling with atomic in timestamp sockopt
Summary
In the Linux kernel, the following vulnerability has been resolved: mptcp: fix scheduling with atomic in timestamp sockopt Using lock_sock_fast() (atomic context) around sock_set_timestamp() and sock_set_timestamping() is unsafe, as both helpers can sleep. Replace lock_sock_fast() with sleepable lock_sock()/release_sock() to avoid scheduling while atomic panic.
Severity
No CVSS data available.
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: 9061f24bf82ec2e92dd1e7c10b98b680db023d31 , < ebeb70e29e37cfce899309cc2665a3bfe960ed94 (git)
Affected: 9061f24bf82ec2e92dd1e7c10b98b680db023d31 , < b157dab93a7af44a84e78cf0cb311dde475cff5b (git)
Affected: 9061f24bf82ec2e92dd1e7c10b98b680db023d31 , < 8a005fe451c73fd2b3d1faa5643c11e6bd07acfc (git)
Affected: 9061f24bf82ec2e92dd1e7c10b98b680db023d31 , < 7eb513b42721bee4b96da69f6188d5a7783f210d (git)
Affected: 9061f24bf82ec2e92dd1e7c10b98b680db023d31 , < b5c52908d52c6c8eb8933264aa6087a0600fd892 (git)
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Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 6.6.140 , ≤ 6.6.* (semver)
Unaffected: 6.12.88 , ≤ 6.12.* (semver)
Unaffected: 6.18.30 , ≤ 6.18.* (semver)
Unaffected: 7.0.7 , ≤ 7.0.* (semver)
Unaffected: 7.1-rc2 , ≤ * (original_commit_for_fix)
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Show details on NVD website

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    "dateReserved": "2026-05-13T15:03:33.102Z",
    "dateUpdated": "2026-05-28T09:36:23.394Z",
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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