Service interruption via stale RSS table index
Published Aug 26, 2024 · Updated Aug 5, 2026
Out-of-bounds memory access in the Linux kernel bnxt_en driver 6.10.4 allows local users to interrupt service by changing NIC channels. An incorrect ring-count comparison can leave the RSS indirection table sized for the previous RX-ring count, so bnxt_fill_hw_rss_tbl() later indexes beyond the table. The trigger requires a Broadcom bnxt_en device with older firmware that does not reserve RX rings; changing TX or RX rings can reach the faulty path and interrupt host operation.
Summary
What happened
Out-of-bounds memory access in the Linux kernel bnxt_en driver 6.10.4 allows local users to interrupt service by changing NIC channels. An incorrect ring-count comparison can leave the RSS indirection table sized for the previous RX-ring count, so bnxt_fill_hw_rss_tbl() later indexes beyond the table. The trigger requires a Broadcom bnxt_en device with older firmware that does not reserve RX rings; changing TX or RX rings can reach the faulty path and interrupt host operation.
The record
- CVE
- CVE-2024-44933
- Published
- Aug 26, 2024
- Updated
- Aug 5, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-787, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 26, 2024CVE publishedPublication date reported by the CVE source.
- Aug 5, 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=6.10.4 <6.10.5
- Affected versionversion=98ba1d931f611e8f8f519c0405fa0a1a76554bfa <da03f5d1b2c319a2b74fe76edeadcd8fa5f44376
- Affected versionversion=bc57f879a420d19bb5ecdb480f858371554f2258 <abd573e9ad2ba64eaa6418a5f4eec819de28f205
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What is affected?
Published CVSS scores
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Attacks
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Technologies
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Your stack
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