AZL-81837
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-81837.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-81837
- Upstream
- Published
- 2026-04-03T16:16:28Z
- Modified
- 2026-09-14T05:26:59Z
- Summary
- CVE-2026-23444 affecting package kernel for versions less than 6.6.137.1-2
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: always free skb on ieee80211_tx_prepare_skb() failure
ieee80211_tx_prepare_skb() has three error paths, but only two of them free the skb. The first error path (ieee80211_tx_prepare() returning TX_DROP) does not free it, while invoke_tx_handlers() failure and the fragmentation check both do.
Add kfree_skb() to the first error path so all three are consistent, and remove the now-redundant frees in callers (ath9k, mt76, mac80211_hwsim) to avoid double-free.
Document the skb ownership guarantee in the function's kdoc.
- References