Local system crash via zero display granularity
Published Jan 19, 2025 · Updated May 11, 2026
Divide-by-zero in the Linux kernel AMD display bandwidth code allows local users to crash the system through crafted display parameters. The dcn_bw_ceil2 and dcn_bw_floor2 wrappers pass zero granularity into helpers that assert and divide by that value. A low-privileged local user must reach the AMD display-mode calculation path; the reported impact is a system crash, not data disclosure or modification.
Summary
What happened
Divide-by-zero in the Linux kernel AMD display bandwidth code allows local users to crash the system through crafted display parameters. The dcn_bw_ceil2 and dcn_bw_floor2 wrappers pass zero granularity into helpers that assert and divide by that value. A low-privileged local user must reach the AMD display-mode calculation path; the reported impact is a system crash, not data disclosure or modification.
The record
- CVE
- CVE-2024-57922
- Published
- Jan 19, 2025
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-369, T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 19, 2025CVE 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=4.15
- Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <0881fbc4fd62e00a2b8e102725f76d10351b2ea8
- Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <497471baf53bb8fd3cd1529d65d4d7f7b81f1917
- Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <4f0dd09ed3001725ffd8cdc2868e71df585392fe
- Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <8a9315e6f7b2d94c65a1ba476481deddb20fc3ae
- Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <95793f9684e58d2aa56671b2d616b4f9f577a0a8
- Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <ae9ab63a268be99a27a4720ca24f6be801744fee
- Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <f3d1e4062ef251fa55ccfeca1e54a98b6818b3a1
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.
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
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Your stack
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