wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.1.167, 6.6.130, 6.12.78, 6.18.20, 6.19.10
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down When the nl80211 socket that originated a PMSR request is closed, cfg80211_release_pmsr() sets the request's nl_portid to zero and schedules pmsr_free_wk to process the abort asynchronously. If the interface is concurrently torn down before that work runs, cfg80211_pmsr_wdev_down() calls cfg80211_pmsr_process_abort() directly. However, the already- scheduled pmsr_free_wk work item remains pending and may run after the interface has been removed from the driver. This could cause the driver's abort_pmsr callback to operate on a torn-down interface, leading to undefined behavior and potential crashes. Cancel pmsr_free_wk synchronously in cfg80211_pmsr_wdev_down() before calling cfg80211_pmsr_process_abort(). This ensures any pending or in-progress work is drained before interface teardown proceeds, preventing the work from invoking the driver abort callback after the interface is gone.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
From 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 · fixed in 28d3551f8d8cb3aec7497894d94150fe84d20e5e; From 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 · fixed in 37e776e2e0a523731e2470dce6d563f0e8632a40; From 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 · fixed in d32c07ef1880fe20cf4ab223dbfedc9c0b2816aa; From 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 · fixed in a1b7a843f12a0c3e9d3a2ca607ce451916ef42cf; From 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 · fixed in 72b7ea786b8e570ae11149e9089859a4a8634a13; From 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 · fixed in 6dccbc9f3e1d38565dff7730d2b7d1e8b16c9b09
- Linux Linux
5.0
- KernelLinux
From 5.0.0 · fixed in 6.1.167; From 6.2.0 · fixed in 6.6.130; From 6.7.0 · fixed in 6.12.78; From 6.13.0 · fixed in 6.18.20; From 6.19.0 · fixed in 6.19.10