Kernel panic via zero-length numbered HID report
Published Aug 28, 2026 · Updated Aug 28, 2026
Out-of-bounds read in the Linux kernel HID core allows attackers to trigger a kernel panic with a zero-length numbered report. hid_report_raw_event() calls hid_get_report() before validating size, and hid_get_report() unconditionally reads data[0] for numbered reports. Reachability requires a kernel caller to submit an empty numbered HID report; the documented consequence is an out-of-bounds read or kernel panic, not data disclosure.
Summary
What happened
Out-of-bounds read in the Linux kernel HID core allows attackers to trigger a kernel panic with a zero-length numbered report. hid_report_raw_event() calls hid_get_report() before validating size, and hid_get_report() unconditionally reads data[0] for numbered reports. Reachability requires a kernel caller to submit an empty numbered HID report; the documented consequence is an out-of-bounds read or kernel panic, not data disclosure.
The record
- CVE
- CVE-2026-80604
- Published
- Aug 28, 2026
- Updated
- Aug 28, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- T1499
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Aug 28, 2026CVE publishedPublication date reported by the CVE source.
- Aug 28, 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=121dc93ae1fcaa4b9a601eca6b3ca2e969c2fe2f <c39f5765ad840b71ff8db812d0210f216cca96e4
- Affected versionversion=2c85c61d1332e1e16f020d76951baf167dcb6f7a <af1a9b65ebe8a948eda805c14b78d4d0767cb1b5
- Affected versionversion=2c85c61d1332e1e16f020d76951baf167dcb6f7a <f7e8117e42b20c30d2a5edab82c944a5e381d791
- Affected versionversion=509c2605065004fc4cd86ee50a9350d402785307 <dd395744e4ed87956fcbf81ecc6a20c51e35fa4e
- Affected versionversion=5.10.259 <5.10.261
- Affected versionversion=5.15.210 <5.15.212
- Affected versionversion=59bfdb41a34cf5d6af1c637348714c2b5a6ca676 <f8896b684e246f3f00f45ba2b6803ae59b9cc768
- Affected versionversion=6.1.176 <6.1.178
- Affected versionversion=6.12.93 <6.12.97
- Affected versionversion=6.18.33 <6.18.40
- Affected versionversion=6.6.143 <6.6.145
- Affected versionversion=7.0.10 <7.1
- Affected versionversion=7.1
- Affected versionversion=710a946b1aa2c35dc56f86621f436938f31ba1a5
- Affected versionversion=9e36568e67f817c728f9d79049d212da79109a75 <c973d53bcd420b58c4a34c68198746286d77e9fa
- Affected versionversion=a4d6cb7cf45bddc76c78ed5fd683328af9e2018f <30ff978af92cb51c9ba99f96fc4f4ac80d7001ba
- Affected versionversion=fb3f7ec2606cdc7c6ef30970f381e571866bfd54 <c1fc0d3aff26ec9ff885b3e4c92eba98cf349678
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What is affected?
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Attacks
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Weakness, pattern, technique
Public exploit references
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Technologies
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