Answer in brief
CVE-2026-98237 records a Unknown severity vulnerability in net: wwan: mhi_wwan_mbim: guard against a cyclic NDP chain. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=aa730a9905b7b079ef2fffdab7f15dbb842f5c7c <3ed36ee1b29b028f6bc2ebe100152f61a33df05a || >=aa730a9905b7b079ef2fffdab7f15dbb842f5c7c <e4b2c7b50d4f4aa1ddfff731b136d65f65b2b526 || >=aa730a9905b7b079ef2fffdab7f15dbb842f5c7c <19b5e8dd884a530d04482e1a8e547f43cad17ed7 || >=aa730a9905b7b079ef2fffdab7f15dbb842f5c7c <24ade82d6d993274e99c2c6998848751c35292e7 || >=aa730a9905b7b079ef2fffdab7f15dbb842f5c7c <8dad70ff7e25cbcfbcb5101fdbf36d98003eb653 || >=aa730a9905b7b079ef2fffdab7f15dbb842f5c7c <829fec45122da58d77a55a3b7ca514dafab98e77 || >=aa730a9905b7b079ef2fffdab7f15dbb842f5c7c <5d063822ac5184939c1ed377a339a01d8ae814e8 | 3ed36ee1b29b028f6bc2ebe100152f61a33df05a, e4b2c7b50d4f4aa1ddfff731b136d65f65b2b526, 19b5e8dd884a530d04482e1a8e547f43cad17ed7, 24ade82d6d993274e99c2c6998848751c35292e7, 8dad70ff7e25cbcfbcb5101fdbf36d98003eb653, 829fec45122da58d77a55a3b7ca514dafab98e77, 5d063822ac5184939c1ed377a339a01d8ae814e8 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 6, 2026
In the Linux kernel, the following vulnerability has been resolved: net: wwan: mhi_wwan_mbim: guard against a cyclic NDP chain The NDP traversal in mhi_mbim_rx() only stops when wNextNdpIndex is zero. Nothing requires the offsets to advance, so a modem that points an NDP at itself, or at an earlier NDP, keeps the loop spinning forever on one CPU. Break out when the next NDP offset is not larger than the current one. Verified in a QEMU guest with a fault injector feeding the driver's receive callback an NTB whose single NDP points at itself: the unpatched driver spins in mhi_mbim_rx() with one CPU pinned at 100% and the thread never returns. With this check the loop terminates within one iteration. Changes in v2: move the non-increasing check to the wNextNdpIndex retrieval site, as suggested by Loic Poulain, instead of tracking the previous offset in a separate variable.
Quoted source text, attributed separately from HOL analysis.