PANIC: "kernel BUG at net/core/skbuff.c:4082!"
Issue
- System crashed with
PANIC: "kernel BUG at net/core/skbuff.c:4082!"and vmcore backtrace similar to:
[exception RIP: skb_segment+0xbda]
...
#7 [ffffa5dac1d70910] tcp_gso_segment at ffffffff966a9a21
#8 [ffffa5dac1d70960] inet_gso_segment at ffffffff966beb31
#9 [ffffa5dac1d709b0] skb_mac_gso_segment at ffffffff965ded0d
#10 [ffffa5dac1d709d8] skb_udp_tunnel_segment at ffffffff966b35b9
#11 [ffffa5dac1d70a38] inet_gso_segment at ffffffff966beb31
#12 [ffffa5dac1d70a88] skb_mac_gso_segment at ffffffff965ded0d
#13 [ffffa5dac1d70ab0] __skb_gso_segment at ffffffff965dee2d
#14 [ffffa5dac1d70ad8] validate_xmit_skb at ffffffff965df2ae
#15 [ffffa5dac1d70b10] validate_xmit_skb_list at ffffffff965df4b6
#16 [ffffa5dac1d70b40] sch_direct_xmit at ffffffff9663df13
#17 [ffffa5dac1d70b88] __dev_queue_xmit at ffffffff965e0233
Note: There is a similar but different issue described at:
Environment
- Red Hat Enterprise Linux (RHEL) 9.1 and earlier (
kernel-5.14.0-162.6.1.el9_1series) - Red Hat Enterprise Linux (RHEL) 8.7 and earlier (
kernel-4.18.0-425.3.1series) - Generic Receive Offload (GRO)
- Generic Segmentation Offload (GSO)
- eBPF program to redirect traffic (optional)
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