# CVE-2026-97474: wifi: iwlwifi: mld: purge async notifications upon nic error

CVE-2026-97474 is fixed in linux on 1 platform by DEBIAN-CVE-2026-97474 (version 7.2.6-1), released September 24, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-97474
- Priority: High
- CVSS: 7.4 (Moderate)
- EPSS: 0.0012
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 24, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97474

## Description

In the Linux kernel, the following vulnerability has been resolved:  wifi: iwlwifi: mld: purge async notifications upon nic error  This fixes a kernel panic in reconfig failure:  1. we have a BSS connection 2. we have a NAN connection 3. FW error occurs 4. reconfig restores the BSS connection 5. however, restoring the NAN connection fails due to a FW error. 6. erroneously, ieee80211_handle_reconfig_failure is called and marks all    interfaces as not-in-driver (will be fixed in a different patch). 7. mac80211 frees the links of the BSS connection but doesn't tell the    driver about that, as it thinks that this vif is not in the driver. 8. in ieee80211_stop_device, *ALL* wiphy works are getting flushed    (erroneously?) 9. Therefore, async_handlers_wk is being executed, processing the    statistics notification that was received after we restored the BSS    connection. 10. the notification handler dereferences fw_id_to_bss_conf[id], which is     now a dangling pointer, as mac80211 already freed this link in (7). 11. On the first access to one of the links fields, we panic.  While this can and should be fixed by removing the call to ieee80211_handle_reconfig_failure in (6), it is also not a good idea to carry and maybe handle notifications from a dead FW.  We do purge the notifications when we stop the FW, but in reconfig failure we stop the FW too late, after the notifications are processed. In addition, async_handlers_wk can always be scheduled before the reconfig work.  Purge the notifications immediately when transport notifies about a nic error.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.2.6-1 | [DEBIAN-CVE-2026-97474](https://patchblox.com/security/data/fix/linux/debian-cve-2026-97474.md) | Sep 24, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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