CVE-2024-49937 (GCVE-0-2024-49937)

Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-01-05 10:54
VLAI?
Title
wifi: cfg80211: Set correct chandef when starting CAC
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Set correct chandef when starting CAC When starting CAC in a mode other than AP mode, it return a "WARNING: CPU: 0 PID: 63 at cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]" caused by the chandef.chan being null at the end of CAC. Solution: Ensure the channel definition is set for the different modes when starting CAC to avoid getting a NULL 'chan' at the end of CAC. Call Trace: ? show_regs.part.0+0x14/0x16 ? __warn+0x67/0xc0 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? report_bug+0xa7/0x130 ? exc_overflow+0x30/0x30 ? handle_bug+0x27/0x50 ? exc_invalid_op+0x18/0x60 ? handle_exception+0xf6/0xf6 ? exc_overflow+0x30/0x30 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? exc_overflow+0x30/0x30 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? regulatory_propagate_dfs_state.cold+0x1b/0x4c [cfg80211] ? cfg80211_propagate_cac_done_wk+0x1a/0x30 [cfg80211] ? process_one_work+0x165/0x280 ? worker_thread+0x120/0x3f0 ? kthread+0xc2/0xf0 ? process_one_work+0x280/0x280 ? kthread_complete_and_exit+0x20/0x20 ? ret_from_fork+0x19/0x24 [shorten subject, remove OCB, reorder cases to match previous list]
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 , < 95f32191e50b75e0f75fae1bb925cdf51d8df0a3 (git)
Affected: 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 , < 04053e55dd50741cf6c59b9bbaa4238218c05c70 (git)
Affected: 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 , < f4dbfda159e43d49b43003cc3c2914751939035f (git)
Affected: 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 , < c628026563f4ea9e0413dd4b69429e4a1db240b1 (git)
Affected: 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 , < 20361712880396e44ce80aaeec2d93d182035651 (git)
Affected: 7a53ad13c09150076b7ddde96c2dfc5622c90b45 (git)
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    Linux Linux Affected: 6.0
Unaffected: 0 , < 6.0 (semver)
Unaffected: 6.1.113 , ≤ 6.1.* (semver)
Unaffected: 6.6.55 , ≤ 6.6.* (semver)
Unaffected: 6.10.14 , ≤ 6.10.* (semver)
Unaffected: 6.11.3 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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