Naresh Kamboju naresh.kamboju@linaro.org wrote:
Following kernel crash noticed on linux next 20211019 tag. on x86, i386 and other architectures.
Paul, this might be caused by 1d1e1ded13568be81a0e19d228e310a48997bec8 ("selinux: make better use of the nf_hook_state passed to the NF hooks"), in particular this hunk here:
- if (sk == NULL) + if (state->sk == NULL) return NF_ACCEPT; + sk = skb_to_full_sk(skb); sksec = sk->sk_security;
state->sk might not be related to skb->sk. I suspect that this should instead be:
+ sk = skb_to_full_sk(skb); if (sk == NULL)
See 7026b1ddb6b8d4e6ee33dc2bd06c0ca8746fa7ab for the origin of this additional socket pointer.