Answer in brief
CVE-2026-98887 records a Unknown severity vulnerability in wifi: mac80211_hwsim: reject undersized HWSIM_ATTR_TX_INFO. The current sources do not mark it as known exploited. The current feed maps 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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <3a96bb65b4b820d8b41fa155781ec1c29e3479d4 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <59e1f2a0242232b4a3af144ae317d3913fc09046 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1ae85bb34fe3510659b86d6a5f8036dd498233f8 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6f6368b20f8c9481fa7ba7b672dcb3c9f36b2695 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b5b1234bbfa25537fb9a5c0d62c328ed4547f721 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <13edd8ea7ff2ce6a964b290ef2034cd8cbed96c7 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <3dc723ac78a6e4fa0fd49e27e487ed319da40a9f || >=0 <5.10.271 || >=0 <5.15.222 || >=0 <6.1.189 || >=0 <6.6.158 || >=0 <6.12.111 || >=0 <6.18.53 | 3a96bb65b4b820d8b41fa155781ec1c29e3479d4, 59e1f2a0242232b4a3af144ae317d3913fc09046, 1ae85bb34fe3510659b86d6a5f8036dd498233f8, 6f6368b20f8c9481fa7ba7b672dcb3c9f36b2695, b5b1234bbfa25537fb9a5c0d62c328ed4547f721, 13edd8ea7ff2ce6a964b290ef2034cd8cbed96c7, 3dc723ac78a6e4fa0fd49e27e487ed319da40a9f, 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53 |
Published upstream
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 23, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: reject undersized HWSIM_ATTR_TX_INFO hwsim_tx_info_frame_received_nl() casts the HWSIM_ATTR_TX_INFO payload to a struct hwsim_tx_rate * and unconditionally reads IEEE80211_TX_MAX_RATES entries (8 bytes) from it. The policy only bounds the attribute from above (NLA_BINARY .len is a maximum) and the op sets GENL_DONT_VALIDATE_STRICT, so a short or zero-length attribute is accepted and the loop reads past the payload. Require the exact length in the policy, so a malformed attribute is rejected before the handler runs.
Quoted source text, attributed separately from HOL analysis.