CVE-2026-98614sctp: avoid livelock while updating retransmit path
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
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
- 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.