Riskcovery

CVE-2026-46168

mptcp: fix scheduling with atomic in timestamp sockopt

State
Published
Severity
Not scored
Published
May 28, 2026
Updated
Oct 15, 2026
Reserved
May 13, 2026

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 9061f24bf82ec2e92dd1e7c10b98b680db023d31 to before 0949d8bbbedbafe0136a1723c41eb823c2f1e09dAffected
  • 9061f24bf82ec2e92dd1e7c10b98b680db023d31 to before e792cfb6aeaf65612cdf8e3ac431d65e66283654Affected
  • 9061f24bf82ec2e92dd1e7c10b98b680db023d31 to before ebeb70e29e37cfce899309cc2665a3bfe960ed94Affected
  • 9061f24bf82ec2e92dd1e7c10b98b680db023d31 to before b157dab93a7af44a84e78cf0cb311dde475cff5bAffected
  • 9061f24bf82ec2e92dd1e7c10b98b680db023d31 to before 8a005fe451c73fd2b3d1faa5643c11e6bd07acfcAffected
  • 9061f24bf82ec2e92dd1e7c10b98b680db023d31 to before 7eb513b42721bee4b96da69f6188d5a7783f210dAffected
  • 9061f24bf82ec2e92dd1e7c10b98b680db023d31 to before b5c52908d52c6c8eb8933264aa6087a0600fd892Affected
LinuxLinux
  • 5.14Affected
  • before 5.14Not affected
  • 5.15.209 through 5.15.*Not affected
  • 6.1.175 through 6.1.*Not affected
  • 6.6.140 through 6.6.*Not affected
  • 6.12.88 through 6.12.*Not affected
  • 6.18.30 through 6.18.*Not affected
  • 7.0.7 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

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