Answer in brief
CVE-2026-68402 records a Unknown severity vulnerability in wifi: cfg80211: bound element ID read when checking non-inheritance. 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 | >=f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3 <20c308d9a57722801961f816395bf825f7bde6bc || >=f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3 <84bd907361c56fbd5523eceb2682cb39da059bd5 || >=f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3 <11ac7a5e75f5132f1778e0c60981d30dc29fb869 || >=f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3 <ddf2773bcc8e49a43c561f22ec1e7924215d7947 || >=f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3 <cb8afea4655ff004fa7feee825d5c79783525383 | 20c308d9a57722801961f816395bf825f7bde6bc, 84bd907361c56fbd5523eceb2682cb39da059bd5, 11ac7a5e75f5132f1778e0c60981d30dc29fb869, ddf2773bcc8e49a43c561f22ec1e7924215d7947, cb8afea4655ff004fa7feee825d5c79783525383 |
| Linux/Linuxgeneric | 5.2 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: bound element ID read when checking non-inheritance cfg80211_is_element_inherited() reads the first data octet of the candidate element (id = elem->data[0]) to look it up in an extension non-inheritance list. It does so after testing elem->id, but without verifying that the element actually has a data octet. A zero-length extension element (WLAN_EID_EXTENSION with length 0) therefore makes it read one octet past the end of the element. _ieee802_11_parse_elems_full() runs this check for every element of a frame once a non-inheritance context exists -- e.g. while parsing a per-STA profile of a Multi-Link element in a (re)association response, or a non-transmitted BSS profile -- so a crafted frame from an AP can trigger a one-octet slab-out-of-bounds read during element parsing: BUG: KASAN: slab-out-of-bounds in cfg80211_is_element_inherited Read of size 1 ... in net/wireless/scan.c Return early (treat the element as inherited) when an extension element carries no data, mirroring the existing handling of empty ID lists. The bug was found by fuzzing ieee802_11_parse_elems_full() under KASAN.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-68402 records a Unknown severity vulnerability in wifi: cfg80211: bound element ID read when checking non-inheritance. 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 | >=f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3 <20c308d9a57722801961f816395bf825f7bde6bc || >=f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3 <84bd907361c56fbd5523eceb2682cb39da059bd5 || >=f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3 <11ac7a5e75f5132f1778e0c60981d30dc29fb869 || >=f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3 <ddf2773bcc8e49a43c561f22ec1e7924215d7947 || >=f7dacfb11475ba777e1e84ccec2e14b0ba5a17a3 <cb8afea4655ff004fa7feee825d5c79783525383 | 20c308d9a57722801961f816395bf825f7bde6bc, 84bd907361c56fbd5523eceb2682cb39da059bd5, 11ac7a5e75f5132f1778e0c60981d30dc29fb869, ddf2773bcc8e49a43c561f22ec1e7924215d7947, cb8afea4655ff004fa7feee825d5c79783525383 |
| Linux/Linuxgeneric | 5.2 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: bound element ID read when checking non-inheritance cfg80211_is_element_inherited() reads the first data octet of the candidate element (id = elem->data[0]) to look it up in an extension non-inheritance list. It does so after testing elem->id, but without verifying that the element actually has a data octet. A zero-length extension element (WLAN_EID_EXTENSION with length 0) therefore makes it read one octet past the end of the element. _ieee802_11_parse_elems_full() runs this check for every element of a frame once a non-inheritance context exists -- e.g. while parsing a per-STA profile of a Multi-Link element in a (re)association response, or a non-transmitted BSS profile -- so a crafted frame from an AP can trigger a one-octet slab-out-of-bounds read during element parsing: BUG: KASAN: slab-out-of-bounds in cfg80211_is_element_inherited Read of size 1 ... in net/wireless/scan.c Return early (treat the element as inherited) when an extension element carries no data, mirroring the existing handling of empty ID lists. The bug was found by fuzzing ieee802_11_parse_elems_full() under KASAN.
Quoted source text, attributed separately from HOL analysis.