daf61b026f
Other garbage collector might remove an entry not fully set up yet.
[570953.958293] RIP: 0010:memcmp+0x9/0x50
[...]
[570953.958567] flow_offload_hash_cmp+0x1e/0x30 [nf_flow_table]
[570953.958585] flow_offload_lookup+0x8c/0x110 [nf_flow_table]
[570953.958606] nf_flow_offload_ip_hook+0x135/0xb30 [nf_flow_table]
[570953.958624] nf_flow_offload_inet_hook+0x35/0x37 [nf_flow_table_inet]
[570953.958646] nf_hook_slow+0x3c/0xb0
[570953.958664] __netif_receive_skb_core+0x90f/0xb10
[570953.958678] ? ip_rcv_finish+0x82/0xa0
[570953.958692] __netif_receive_skb_one_core+0x3b/0x80
[570953.958711] __netif_receive_skb+0x18/0x60
[570953.958727] netif_receive_skb_internal+0x45/0xf0
[570953.958741] napi_gro_receive+0xcd/0xf0
[570953.958764] ixgbe_clean_rx_irq+0x432/0xe00 [ixgbe]
[570953.958782] ixgbe_poll+0x27b/0x700 [ixgbe]
[570953.958796] net_rx_action+0x284/0x3c0
[570953.958817] __do_softirq+0xcc/0x27c
[570953.959464] irq_exit+0xe8/0x100
[570953.960097] do_IRQ+0x59/0xe0
[570953.960734] common_interrupt+0xf/0xf
Fixes: 43c8f131184f ("netfilter: nf_flow_table: fix missing error check for rhashtable_insert_fast")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.