Answer in brief
CVE-2026-23073 records a Unknown severity vulnerability in wifi: rsi: Fix memory corruption due to not set vif driver data size. 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 | >=dad0d04fa7ba41ce603a01e8e64967650303e9a2 <49ef094fdbc3526e5db2aebb404b84f79c5603dc || >=dad0d04fa7ba41ce603a01e8e64967650303e9a2 <0d7c9e793e351cbbe9e06a9ca47d77b6ad288fb0 || >=dad0d04fa7ba41ce603a01e8e64967650303e9a2 <7c54d0c3e2cad4300be721ec2aecfcf8a63bc9f4 || >=dad0d04fa7ba41ce603a01e8e64967650303e9a2 <7761d7801f40e61069b4df3db88b36d80d089f8a || >=dad0d04fa7ba41ce603a01e8e64967650303e9a2 <99129d80a5d4989ef8566f434f3589f60f28042b || >=dad0d04fa7ba41ce603a01e8e64967650303e9a2 <31efbcff90884ea5f65bf3d1de01267db51ee3d1 || >=dad0d04fa7ba41ce603a01e8e64967650303e9a2 <4f431d88ea8093afc7ba55edf4652978c5a68f33 | 49ef094fdbc3526e5db2aebb404b84f79c5603dc, 0d7c9e793e351cbbe9e06a9ca47d77b6ad288fb0, 7c54d0c3e2cad4300be721ec2aecfcf8a63bc9f4, 7761d7801f40e61069b4df3db88b36d80d089f8a, 99129d80a5d4989ef8566f434f3589f60f28042b, 31efbcff90884ea5f65bf3d1de01267db51ee3d1, 4f431d88ea8093afc7ba55edf4652978c5a68f33 |
| Linux/Linuxgeneric | 3.15 | Not reported |
Published upstream
Feb 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 19, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: Fix memory corruption due to not set vif driver data size The struct ieee80211_vif contains trailing space for vif driver data, when struct ieee80211_vif is allocated, the total memory size that is allocated is sizeof(struct ieee80211_vif) + size of vif driver data. The size of vif driver data is set by each WiFi driver as needed. The RSI911x driver does not set vif driver data size, no trailing space for vif driver data is therefore allocated past struct ieee80211_vif . The RSI911x driver does however use the vif driver data to store its vif driver data structure "struct vif_priv". An access to vif->drv_priv leads to access out of struct ieee80211_vif bounds and corruption of some memory. In case of the failure observed locally, rsi_mac80211_add_interface() would write struct vif_priv *vif_info = (struct vif_priv *)vif->drv_priv; vif_info->vap_id = vap_idx. This write corrupts struct fq_tin member struct list_head new_flows . The flow = list_first_entry(head, struct fq_flow, flowchain); in fq_tin_reset() then reports non-NULL bogus address, which when accessed causes a crash. The trigger is very simple, boot the machine with init=/bin/sh , mount devtmpfs, sysfs, procfs, and then do "ip link set wlan0 up", "sleep 1", "ip link set wlan0 down" and the crash occurs. Fix this by setting the correct size of vif driver data, which is the size of "struct vif_priv", so that memory is allocated and the driver can store its driver data in it, instead of corrupting memory around it.
Quoted source text, attributed separately from HOL analysis.