In the Linux kernel, the following vulnerability has been resolved:
netfilter: flowtable: validate vlan header
Ensure there is sufficient room to access the protocol field of the VLAN header, validate it once before the flowtable lookup.
===================================================== BUG: KMSAN: uninit-value in nfflowoffloadinethook+0x45a/0x5f0 net/netfilter/nfflowtableinet.c:32 nfflowoffloadinethook+0x45a/0x5f0 net/netfilter/nfflowtableinet.c:32 nfhookentryhookfn include/linux/netfilter.h:154 [inline] nfhookslow+0xf4/0x400 net/netfilter/core.c:626 nfhookingress include/linux/netfilternetdev.h:34 [inline] nf_ingress net/core/dev.c:5440 [inline]