# CVE-2025-38246: bnxt: properly flush XDP redirect lists
> A memory corruption bug in the bnxt network driver causes a kernel crash when processing XDP redirects, leading to denial of service.
- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 9 Jul 2025
- **Updated:** 15 Oct 2026
- **Also known as:** AZL-64835, BELL-CVE-2025-38246, DEBIAN-CVE-2025-38246, GHSA-26c6-3rj3-7q4h, ROOT-OS-DEBIAN-12-CVE-2025-38246, ROOT-OS-UBUNTU-2404-CVE-2025-38246, UBUNTU-CVE-2025-38246
## What is CVE-2025-38246?
CVE-2025-38246 is a critical memory corruption vulnerability in Linux kernel, published on 9 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
### Official description
In the Linux kernel, the following vulnerability has been resolved:
bnxt: properly flush XDP redirect lists
We encountered following crash when testing a XDP_REDIRECT feature
in production:
[56251.579676] list_add corruption. next->prev should be prev (ffff93120dd40f30), but was ffffb301ef3a6740. (next=ffff93120dd
40f30).
[56251.601413] ------------[ cut here ]------------
[56251.611357] kernel BUG at lib/list_debug.c:29!
[56251.621082] Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
[56251.632073] CPU: 111 UID: 0 PID: 0 Comm: swapper/111 Kdump: loaded Tainted: P O 6.12.33-cloudflare-2025.6.
3 #1
[56251.653155] Tainted: [P]=PROPRIETARY_MODULE, [O]=OOT_MODULE
[56251.663877] Hardware name: MiTAC GC68B-B8032-G11P6-GPU/S8032GM-HE-CFR, BIOS V7.020.B10-sig 01/22/2025
[56251.682626] RIP: 0010:__list_add_valid_or_report+0x4b/0xa0
[56251.693203] Code: 0e 48 c7 c7 68 e7 d9 97 e8 42 16 fe ff 0f 0b 48 8b 52 08 48 39 c2 74 14 48 89 f1 48 c7 c7 90 e7 d9 97 48
89 c6 e8 25 16 fe ff <0f> 0b 4c 8b 02 49 39 f0 74 14 48 89 d1 48 c7 c7 e8 e7 d9 97 4c 89
[56251.725811] RSP: 0018:ffff93120dd40b80 EFLAGS: 00010246
[56251.736094] RAX: 0000000000000075 RBX: ffffb301e6bba9d8 RCX: 0000000000000000
[56251.748260] RDX: 0000000000000000 RSI: ffff9149afda0b80 RDI: ffff9149afda0b80
[56251.760349] RBP: ffff9131e49c8000 R08: 0000000000000000 R09: ffff93120dd40a18
[56251.772382] R10: ffff9159cf2ce1a8 R11: 0000000000000003 R12: ffff911a80850000
[56251.784364] R13: ffff93120fbc7000 R14: 0000000000000010 R15: ffff9139e7510e40
[56251.796278] FS: 0000000000000000(0000) GS:ffff9149afd80000(0000) knlGS:0000000000000000
[56251.809133] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[56251.819561] CR2: 00007f5e85e6f300 CR3: 00000038b85e2006 CR4: 0000000000770ef0
[56251.831365] PKRU: 55555554
[56251.838653] Call Trace:
[56251.845560]
[56251.851943] cpu_map_enqueue.cold+0x5/0xa
[56251.860243] xdp_do_redirect+0x2d9/0x480
[56251.868388] bnxt_rx_xdp+0x1d8/0x4c0 [bnxt_en]
[56251.877028] bnxt_rx_pkt+0x5f7/0x19b0 [bnxt_en]
[56251.885665] ? cpu_max_write+0x1e/0x100
[56251.893510] ? srso_alias_return_thunk+0x5/0xfbef5
[56251.902276] __bnxt_poll_work+0x190/0x340 [bnxt_en]
[56251.911058] bnxt_poll+0xab/0x1b0 [bnxt_en]
[56251.919041] ? srso_alias_return_thunk+0x5/0xfbef5
[56251.927568] ? srso_alias_return_thunk+0x5/0xfbef5
[56251.935958] ? srso_alias_return_thunk+0x5/0xfbef5
[56251.944250] __napi_poll+0x2b/0x160
[56251.951155] bpf_trampoline_6442548651+0x79/0x123
[56251.959262] __napi_poll+0x5/0x160
[56251.966037] net_rx_action+0x3d2/0x880
[56251.973133] ? srso_alias_return_thunk+0x5/0xfbef5
[56251.981265] ? srso_alias_return_thunk+0x5/0xfbef5
[56251.989262] ? __hrtimer_run_queues+0x162/0x2a0
[56251.996967] ? srso_alias_return_thunk+0x5/0xfbef5
[56252.004875] ? srso_alias_return_thunk+0x5/0xfbef5
[56252.012673] ? bnxt_msix+0x62/0x70 [bnxt_en]
[56252.019903] handle_softirqs+0xcf/0x270
[56252.026650] irq_exit_rcu+0x67/0x90
[56252.032933] common_interrupt+0x85/0xa0
[56252.039498]
[56252.044246]
[56252.048935] asm_common_interrupt+0x26/0x40
[56252.055727] RIP: 0010:cpuidle_enter_state+0xb8/0x420
[56252.063305] Code: dc 01 00 00 e8 f9 79 3b ff e8 64 f7 ff ff 49 89 c5 0f 1f 44 00 00 31 ff e8 a5 32 3a ff 45 84 ff 0f 85 ae
01 00 00 fb 45 85 f6 <0f> 88 88 01 00 00 48 8b 04 24 49 63 ce 4c 89 ea 48 6b f1 68 48 29
[56252.088911] RSP: 0018:ffff93120c97fe98 EFLAGS: 00000202
[56252.096912] RAX: ffff9149afd80000 RBX: ffff9141d3a72800 RCX: 0000000000000000
[56252.106844] RDX: 00003329176c6b98 RSI: ffffffe36db3fdc7 RDI: 0000000000000000
[56252.116733] RBP: 0000000000000002 R08: 0000000000000002 R09: 000000000000004e
[56252.126652] R10: ffff9149afdb30c4 R11: 071c71c71c71c71c R12: ffffffff985ff860
[56252.136637] R13: 00003329176c6b98 R14: 0000000000000002 R15: 0000000000000000
[56252.146667] ? cpuidle_enter_state+0xab/0x420
[56252.153909] cpuidle_enter+0x2d/0x40
[56252.160360] do_idle+0x176/0x1c0
[56252.166456
---truncated---
## Which versions are affected by CVE-2025-38246?
It affects 1 product.
Products: Linux kernel.
## How do I fix CVE-2025-38246?
Apply the vendor's patch.
## Is CVE-2025-38246 being exploited?
There is no known exploitation of CVE-2025-38246 in the wild and no public exploit code.
## Other vulnerabilities in Linux kernel
- [CVE-2026-53266](https://insights.sbomify.com/CVE-2026-53266/): Linux Kernel Out-of-Bounds Write (high 8.8, exploited in the wild)
- [CVE-2013-6282](https://insights.sbomify.com/CVE-2013-6282/): Linux Kernel Improper Input Validation (high 8.8, exploited in the wild)
- [CVE-2022-0185](https://insights.sbomify.com/CVE-2022-0185/): Linux Kernel Heap-Based Buffer Overflow (high 8.4, exploited in the wild)
- [CVE-2013-2094](https://insights.sbomify.com/CVE-2013-2094/): Linux Kernel Privilege Escalation (high 8.4, exploited in the wild)
- [CVE-2026-53362](https://insights.sbomify.com/CVE-2026-53362/): Linux Kernel Unspecified (high 7.8, exploited in the wild)
## Fix prompt for AI coding agents
```text
Check this codebase for CVE-2025-38246 and fix it if it is affected.
What it is: CVE-2025-38246 is a critical memory corruption vulnerability in Linux kernel, published on 9 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-38246 in the wild and no public exploit code.
Affected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2025-38246/ (Markdown: https://insights.sbomify.com/CVE-2025-38246/index.md)
```
## Sources
- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-38246
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-38246
- OSV: https://osv.dev/vulnerability/CVE-2025-38246
---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-38246/
Summaries are generated and may contain mistakes; the official description above is the record.