Kernel panic via unchecked receive descriptor length
Published Jun 20, 2024 · Updated Aug 5, 2026
Denial of service in the amd-xgbe Ethernet driver in Linux allows attackers to cause an intermittent kernel panic during packet reception. In xgbe_rx_poll, the receive path accepts a second-buffer length larger than the DMA buffer and continues building the socket buffer, causing its data length to underflow and trip BUG_ON. Exposure requires an active amd-xgbe interface and inconsistent hardware descriptor lengths; the documented consequence is a system crash, not data access or modification.
Summary
What happened
Denial of service in the amd-xgbe Ethernet driver in Linux allows attackers to cause an intermittent kernel panic during packet reception. In xgbe_rx_poll, the receive path accepts a second-buffer length larger than the DMA buffer and continues building the socket buffer, causing its data length to underflow and trip BUG_ON. Exposure requires an active amd-xgbe interface and inconsistent hardware descriptor lengths; the documented consequence is a system crash, not data access or modification.
The record
- CVE
- CVE-2022-48743
- Published
- Jun 20, 2024
- Updated
- Aug 5, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-787, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 20, 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
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=4.10.7 <4.11
- Affected versionversion=4.11
- Affected versionversion=4.4.58 <4.5
- Affected versionversion=4.9.19 <4.9.300
- Affected versionversion=622c36f143fc9566ba49d7cec994c2da1182d9e2 <34aeb4da20f93ac80a6291a2dbe7b9c6460e9b26
- Affected versionversion=622c36f143fc9566ba49d7cec994c2da1182d9e2 <4d3fcfe8464838b3920bc2b939d888e0b792934e
- Affected versionversion=622c36f143fc9566ba49d7cec994c2da1182d9e2 <5aac9108a180fc06e28d4e7fb00247ce603b72ee
- Affected versionversion=622c36f143fc9566ba49d7cec994c2da1182d9e2 <617f9934bb37993b9813832516f318ba874bcb7d
- Affected versionversion=622c36f143fc9566ba49d7cec994c2da1182d9e2 <9892742f035f7aa7dcd2bb0750effa486db89576
- Affected versionversion=622c36f143fc9566ba49d7cec994c2da1182d9e2 <db6fd92316a254be2097556f01bccecf560e53ce
- Affected versionversion=622c36f143fc9566ba49d7cec994c2da1182d9e2 <e8f73f620fee5f52653ed2da360121e4446575c5
- Affected versionversion=ae43f9360a21b35cf785ae9a0fdce524d7af0938
- Affected versionversion=ae9d577f3dbb686862b7d0dc9cc73054f0964d4d
- Affected versionversion=fafc9555d87a19c78bcd43ed731c3a73bf0b37a9 <9924c80bd484340191e586110ca22bff23a49f2e
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo