Scan hang via overflowing 8-bit loop counter
Published Nov 19, 2024 · Updated May 11, 2026
Infinite loop in Linux iwlwifi MVM scan construction allows local users to hang 6 GHz scans with more than 255 colocated AP entries. In drivers/net/wireless/intel/iwlwifi/mvm/scan.c, an 8-bit iterator is compared with a 32-bit entry count, causing it to wrap before reaching counts above 255. The condition requires the iwlwifi MVM path, 6 GHz scanning, and over 255 colocated access points collected during earlier 2.4/5 GHz scans; the loop stalls scan processing.
Summary
What happened
Infinite loop in Linux iwlwifi MVM scan construction allows local users to hang 6 GHz scans with more than 255 colocated AP entries. In drivers/net/wireless/intel/iwlwifi/mvm/scan.c, an 8-bit iterator is compared with a 32-bit entry count, causing it to wrap before reaching counts above 255. The condition requires the iwlwifi MVM path, 6 GHz scanning, and over 255 colocated access points collected during earlier 2.4/5 GHz scans; the loop stalls scan processing.
The record
- CVE
- CVE-2024-53055
- Published
- Nov 19, 2024
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-835, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 19, 2024CVE publishedPublication date reported by the CVE source.
- May 11, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=5.11
- Affected versionversion=eae94cf82d7456b57fa9fd55c1edb8a726dcc19c <2ac15e5a8f42fed5d90ed9e1197600913678c50f
- Affected versionversion=eae94cf82d7456b57fa9fd55c1edb8a726dcc19c <2ccd5badadab2d586e91546bf5af3deda07fef1f
- Affected versionversion=eae94cf82d7456b57fa9fd55c1edb8a726dcc19c <7245012f0f496162dd95d888ed2ceb5a35170f1a
- Affected versionversion=eae94cf82d7456b57fa9fd55c1edb8a726dcc19c <cde8a7eb5c6762264ff0f4433358e0a0d250c875
- Affected versionversion=eae94cf82d7456b57fa9fd55c1edb8a726dcc19c <fc621e7a043de346c33bd7ae7e2e0c651d6152ef
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Your stack
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