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CVE-2026-97492

wifi: mac80211: don't call ieee80211_handle_reconfig_failure when not needed

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.160, 6.12.111, and 1 more
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't call ieee80211_handle_reconfig_failure when not needed In case reconfiguration of NAN fails, we call ieee80211_handle_reconfig_failure, that marks all interfaces as not in the driver. Then, at the error path of the reconfig, cfg80211_shutdown_all_interfaces is called to destroy all the interfaces. If we have any other interface but the NAN one, for example a BSS station, then when its state (links, stations) will be removed, we won't tell the driver about this, because we will think that the interfaces are not in the driver, and then drivers might remain with dangling pointers to objects like stations and links (at least for iwlwifi this is the case). ieee80211_handle_reconfig_failure is meant to be called after we cleaned up the state in the driver, there is no reason to call it for NAN reconfiguration failure. Fix the code to just warn in such a case, as we do in other error paths in reconfig where it is too complicated to rewind.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 167e33f4f68cc8e4e3bdaf6d43641176c51f2d79 · fixed in 026637b864b16dfae238e7e1accded820a3d7ae8; From 167e33f4f68cc8e4e3bdaf6d43641176c51f2d79 · fixed in 6ef85dd9f8c62c9a465a32901d09475a114e67bd; From 167e33f4f68cc8e4e3bdaf6d43641176c51f2d79 · fixed in f27a5bda84ff3b0fea3de7572ff48e518e66cf5d; From 167e33f4f68cc8e4e3bdaf6d43641176c51f2d79 · fixed in d2ea99884793c0a8d940073c3dddbb887590718f; From 167e33f4f68cc8e4e3bdaf6d43641176c51f2d79 · fixed in 60b96e44489d6775fe9cd8df619c29e0dc285c49; From 167e33f4f68cc8e4e3bdaf6d43641176c51f2d79 · fixed in 6fb64029457cdcd77be546daf4c7c7cf04891857; From 167e33f4f68cc8e4e3bdaf6d43641176c51f2d79 · fixed in 7a8a3ff2815501f78f494808355ddf37e08647d0

  • Linux Linux

    4.9

  • KernelLinux

    From 4.9.0 · fixed in 5.10.271; From 5.11.0 · fixed in 5.15.222; From 5.16.0 · fixed in 6.1.189; From 6.2.0 · fixed in 6.6.160; From 6.7.0 · fixed in 6.12.111; From 6.13.0 · fixed in 6.18.53

References 7

git.kernel.org