Answer in brief
CVE-2026-98238 records a Unknown severity vulnerability in net: wwan: t7xx: validate the netif index in t7xx_ccmni_recv_skb(). 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 | >=05d19bf500f8281f574713479b04679fa226d0a3 <7c2fe308bda5a7e6222d7f0c3c311991372baab4 || >=05d19bf500f8281f574713479b04679fa226d0a3 <fba45070e25abdae08bcaebfadeef050dc39e208 || >=05d19bf500f8281f574713479b04679fa226d0a3 <e1b0609b1a40da03e385be290853a604eb4c3fb9 || >=05d19bf500f8281f574713479b04679fa226d0a3 <9dbf13de4edff6fbc1f7ad9c4040326b6ed599ad || >=05d19bf500f8281f574713479b04679fa226d0a3 <d28aa2de9654e8024922775520a2665e00c04ad5 || >=05d19bf500f8281f574713479b04679fa226d0a3 <c7ead9704249d57d4693a04697e3bbd285138fa9 | 7c2fe308bda5a7e6222d7f0c3c311991372baab4, fba45070e25abdae08bcaebfadeef050dc39e208, e1b0609b1a40da03e385be290853a604eb4c3fb9, 9dbf13de4edff6fbc1f7ad9c4040326b6ed599ad, d28aa2de9654e8024922775520a2665e00c04ad5, c7ead9704249d57d4693a04697e3bbd285138fa9 |
| Linux/Linuxgeneric | 5.19 | 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: t7xx: validate the netif index in t7xx_ccmni_recv_skb() The netif index carried in the DPMAIF PIT header is five bits wide, but ccmni_inst[] only has room for NIC_DEV_MAX (21) entries. t7xx_ccmni_recv_skb() indexes the array without a bounds check, so indexes 21 to 31 read past it. The out-of-bounds value lands in the callback table that follows the array, which is never NULL, so the existing !ccmni check does not catch it and the driver dereferences whatever sits there as a struct t7xx_ccmni. Drop the skb when the index is out of range. Verified in a QEMU guest with a fault injector setting the netif index to 25: the unpatched driver reads a value past ccmni_inst[], which lands in the callback table, and dereferences it far enough to queue the skb. With this check the packet is dropped. Well-formed traffic on index 0 is unaffected. Changes in v2: none.
Quoted source text, attributed separately from HOL analysis.