AZL-96369
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-96369.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-96369
- Upstream
- Published
- 2026-08-15T13:17:52Z
- Modified
- 2026-09-18T05:37:08Z
- Summary
- CVE-2026-74474 affecting package kernel 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
vxlan: use pskb_network_may_pull() for transmit path header pulls
In vxlan_xmit(), arp_reduce(), and vxlan_mdb_entry_skb_get(), pskb_may_pull() was being called to verify the availability of network layer headers (ARP, IPv6/ND, IP/IPv6 MDB keys).
However, during transmit skb->data points to the MAC header, so skb_network_offset(skb) is ETH_HLEN (14 bytes). Using pskb_may_pull(skb, len) only checks len bytes from skb->data rather than skb_network_offset(skb) + len, which can leave part of the network header in non-linear frags.
Replace these remaining pskb_may_pull() calls with pskb_network_may_pull() to properly account for the MAC header offset.
- References