AZL-92754
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-92754.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-92754
- Upstream
- Published
- 2026-07-19T16:17:53Z
- Modified
- 2026-08-30T05:26:50Z
- Summary
- CVE-2026-64117 affecting package kernel 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: capture fast-RX rate before mesh reuses skb->cb
ieee80211invokefastrx() reads RX status through IEEE80211SKBRXCB(skb), which aliases the same skb->cb storage that ieee80211rxmeshdata() reuses as IEEE80211TXINFO. In the unicast forward path, mesh_data does:
info = IEEE80211_SKB_CB(fwd_skb); memset(info, 0, sizeof(*info));on the same skb the caller still names via rx->skb, then either queues the skb for TX (success) or kfreeskb()'s it (no-route) before returning RXQUEUED. The caller's RXQUEUED arm then calls stastatsencoderate(status) on memory that is either zeroed (success path) or freed (no-route path). The latter is KASAN slab-use-after-free in ieee80211prepareandrxhandle.
Fix by encoding the rate from status before invoking ieee80211rxmeshdata(), so the RXQUEUED arm consumes a value captured while status was still backed by valid memory.
- References