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CVE-2026-98614

Unknown

Last modified

CVE-2026-98614 is a vulnerability of currently unknown severity. 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.

Description

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0, < 3fe624c3843694ab096fdb198526ba0c659febbe; >= 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0, < 43410c1f2db53516e95ddd7e5b4b02f495b78121; >= 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0, < d893a7cc1cb41dd510f338bb2bfd8f29b14eaf49; >= 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0, < 83b1a7f9e718828ef364a7b004254ebb2d0035fe; >= 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0, < 173610fff55022a5ad1579fbcc7faa97467b58b7; >= 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0, < c9338057df1025f578fe7d0ff08bada87b8b838d; >= 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0, < ddc34cc0834c873871e88b055ee6a260676efe97; >= 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0, < d2c31b837406395e576afeb25958c98e9938f3f6; 8ceaec02b17397d12719a282945abc95f8149d9f; d2c2bdcdd8c5ce3d2a68aa3353ed1f340c3e500e; >= 3.10.106, < 3.11; >= 3.12.71, < 3.13
LinuxLinux3.14

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98614?
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.
How severe is CVE-2026-98614?
Severity scoring for CVE-2026-98614 is pending analysis.
How do I fix CVE-2026-98614?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST