CVE-2024-42269

netfilter: iptables: Fix potential null-ptr-deref in ip6table_nat_table_init().

MEDIUM

5.5

CVSS Score

Published: August 17, 2024 at 08:54 AM UTC

Updated: June 17, 2026 at 07:49 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: iptables: Fix potential null-ptr-deref in ip6table_nat_table_init(). ip6table_nat_table_init() accesses net->gen->ptr[ip6table_nat_net_ops.id], but the function is exposed to user space before the entry is allocated via register_pernet_subsys(). Let's call register_pernet_subsys() before xt_register_template().

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

5.15 ≤ v < 5.15.1655.15 ≤ v < 6.1.1045.15 ≤ v < 6.10.45.15 ≤ v < 6.115.15 ≤ v < 6.6.456.2 ≤ v < 6.6.456.7 ≤ v < 6.10.46.11 rc1fdacd57c79b79a03c7ca88f706ad9fb7b46831c1

Vendor states this is fixed in 419ee6274c5153b89c4393c1946faa4c3cad4f9e (fixed)

Vendor states this is fixed in 87dba44e9471b79b255d0736858a897332db9226 (fixed)

Vendor states this is fixed in 91b6df6611b7edb28676c4f63f90c56c30d3e601 (fixed)

Vendor states this is fixed in c22921df777de5606f1047b1345b8d22ef1c0b34 (fixed)

Vendor states this is fixed in e85b9b6a87be4cb3710082038b677e97f2389003 (fixed)

Vendor states this is fixed in 5.15 (unaffected)

Vendor states this is fixed in 5.15.165 (unaffected)

Vendor states this is fixed in 6.1.104 (unaffected)

Vendor states this is fixed in 6.10.4 (unaffected)

Vendor states this is fixed in 6.11 (unaffected)

Vendor states this is fixed in 6.6.45 (unaffected)