Not yet scoredPublished Oct 18, 2026

CVE-2026-98614sctp: avoid livelock while updating retransmit path

Updated under an hour ago (Oct 27, 2026, 12:40 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: sctp: avoid livelock while updating retransmit path sctp_assoc_update_retran_path() can loop forever when every remaining transport, including retran_path, is SCTP_UNCONFIRMED: the state check runs before the wraparound test, so the loop cannot observe that it has completed a full pass. Fix this by considering a transport only when it is not UNCONFIRMED, then checking whether the walk has returned to retran_path. This makes the full-pass termination independent of the transport state while preserving the existing fallback selection semantics. Also restore the NULL guard around the retran_path assignment. In the all-UNCONFIRMED case there is no eligible replacement transport, and installing NULL would leave later retransmit-path users and the debug print with a NULL path.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 18, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 builds before 3fe624c3843694ab096fdb198526ba0c659febbe; from 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 before 43410c1f2db53516e95ddd7e5b4b02f495b78121; from 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 before d893a7cc1cb41dd510f338bb2bfd8f29b14eaf49; from 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 before 83b1a7f9e718828ef364a7b004254ebb2d0035fe; from 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 before 173610fff55022a5ad1579fbcc7faa97467b58b7; from 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 before c9338057df1025f578fe7d0ff08bada87b8b838d; from 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 before ddc34cc0834c873871e88b055ee6a260676efe97; from 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 before d2c31b837406395e576afeb25958c98e9938f3f6; and 4 more ranges	CNA record

References

References

https://git.kernel.org/stable/c/3fe624c3843694ab096fdb198526ba0c659febbe
https://git.kernel.org/stable/c/43410c1f2db53516e95ddd7e5b4b02f495b78121
https://git.kernel.org/stable/c/d893a7cc1cb41dd510f338bb2bfd8f29b14eaf49
https://git.kernel.org/stable/c/83b1a7f9e718828ef364a7b004254ebb2d0035fe
https://git.kernel.org/stable/c/173610fff55022a5ad1579fbcc7faa97467b58b7
https://git.kernel.org/stable/c/c9338057df1025f578fe7d0ff08bada87b8b838d
https://git.kernel.org/stable/c/ddc34cc0834c873871e88b055ee6a260676efe97
https://git.kernel.org/stable/c/d2c31b837406395e576afeb25958c98e9938f3f6

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.