[SRU][j:linux-azure][PATCH 0/1] kernel panic was caused by a fatal exception due to a null pointer dereference in the iptable_nat module

[John Cabaj]

BugLink: https://bugs.launchpad.net/bugs/2076291

[Impact]

* Microsoft has requested a patch to address a kernel panic issue similar to the upstream issue here - https://patchwork.kernel.org/project/netdevbpf/patch/20240731213046.6194-2-pablo@netfilter.org/

[Fix]

* Clean cherry-pick upstream commit 5830aa863981: "netfilter: iptables: Fix null-ptr-deref in iptable_nat_table_init()"

[Test Plan]

* Build and boot tested

[Where problems could occur]

* Low regression risk, mostly shifting logic
* Change to order of register_pernet_subsys() and xt_register_template() could expose some other logic being held together under race condition

[Other info]

* SF #00391736

Kuniyuki Iwashima (1):
  netfilter: iptables: Fix null-ptr-deref in iptable_nat_table_init().

 net/ipv4/netfilter/iptable_nat.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

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2.34.1