CVE-2026-46168: Linux vulnerability

CVE-2026-46168: mptcp: fix scheduling with atomic in timestamp sockopt

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.

UnknownCVSS not scoredNot KEV-listedUpdatedOct 15, 2026, 01:21 UTC (UTC+00:00)

Potential ATT&CK relevance

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CVE-2026-46168 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 28, 2026, 09:36 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

3Timeline events

1ADP providers

9Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
May 13, 2026, 15:03 UTC (UTC+00:00)
CVE publishedCVE Program
The CVE record was published.
May 28, 2026, 09:36 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
Oct 15, 2026, 01:21 UTC (UTC+00:00)

ADP provider summaries

Source materials

CVE List V5 sourceCVE List V5
https://git.kernel.org/stable/c/0949d8bbbedbafe0136a1723c41eb823c2f1e09dCVE reference, Linux
https://git.kernel.org/stable/c/e792cfb6aeaf65612cdf8e3ac431d65e66283654CVE reference, Linux
https://git.kernel.org/stable/c/ebeb70e29e37cfce899309cc2665a3bfe960ed94CVE reference, Linux
https://git.kernel.org/stable/c/b157dab93a7af44a84e78cf0cb311dde475cff5bCVE reference, Linux
https://git.kernel.org/stable/c/8a005fe451c73fd2b3d1faa5643c11e6bd07acfcCVE reference, Linux
https://git.kernel.org/stable/c/7eb513b42721bee4b96da69f6188d5a7783f210dCVE reference, Linux
https://git.kernel.org/stable/c/b5c52908d52c6c8eb8933264aa6087a0600fd892CVE reference, Linux
https://cert-portal.siemens.com/productcert/html/ssa-784472.htmlCVE reference, siemens-SADP

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

LinuxLinux9061f24bf82ec2e92dd1e7c10b98b680db023d31, 9061f24bf82ec2e92dd1e7c10b98b680db023d31, 9061f24bf82ec2e92dd1e7c10b98b680db023d31, 9061f24bf82ec2e92dd1e7c10b98b680db023d31, 9061f24bf82ec2e92dd1e7c10b98b680db023d31, 9061f24bf82ec2e92dd1e7c10b98b680db023d31, 9061f24bf82ec2e92dd1e7c10b98b680db023d31unaffected

LinuxLinux5.14, 0, 5.15.209, 6.1.175, 6.6.140, 6.12.88, 6.18.30, 7.0.7, 7.1affected

Weakness

CWE details

No CWE listed

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