CVE-2026-80772HID: nintendo: fix out-of-bounds read in joycon_ctlr_read_handler()
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 88% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: HID: nintendo: fix out-of-bounds read in joycon_ctlr_read_handler() joycon_ctlr_read_handler() casts an incoming HID input report to struct joycon_input_report and parses it, guarding the cast only with a 12-byte length check: if (size >= 12) /* make sure it contains the input report */ joycon_parse_report(ctlr, (struct joycon_input_report *)data); struct joycon_input_report is 49 bytes: a 13-byte header followed by a union whose IMU arm is 36 bytes. For an IMU report joycon_parse_report() -> joycon_parse_imu_report() walks that union (struct offsets 13..48), so a report of exactly 12 bytes with data[0] == JC_INPUT_IMU_DATA passes the guard yet is read up to 37 bytes past its declared length. The over-read bytes are decoded into accelerometer/gyroscope values and forwarded to userspace through the "(IMU)" input device, leaking driver-internal memory. data[0] and size are fully controlled by a malicious or spoofed Joy-Con/Pro Controller. Receive buffers are sized to the maximum report length, so this is an over-read within the allocation rather than a slab OOB, but the decoded bytes still reach userspace. The sibling subcmd path in joycon_ctlr_handle_event() already bounds the same cast correctly: if (size < sizeof(struct joycon_input_report) || data[0] != JC_INPUT_SUBCMD_REPLY) break; Use the same sizeof(struct joycon_input_report) bound here.
Timeline
ID reserved
By Linux
- 9 days later
· 9 days later
Published
- 45 days later
· 45 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 88% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 2af16c1f846bd60240745bbd3afa13d5f040c61a – < 33ea29f8b6141f2d265de807e110a6435b355cb0
- affected 2af16c1f846bd60240745bbd3afa13d5f040c61a – < bd397c4123a4bc084913d8c7fdb40ef94e9f8172
- affected 2af16c1f846bd60240745bbd3afa13d5f040c61a – < addca61f9a23c0d20a387c2040e70479f54518e1
- affected 2af16c1f846bd60240745bbd3afa13d5f040c61a – < 51cfd1adbe7a46bb08af162abb3ab3b6820e2d15
- affected 2af16c1f846bd60240745bbd3afa13d5f040c61a – < d4cabd4089adb59cf7974915737c52cc47a9bb1b
- affected 2af16c1f846bd60240745bbd3afa13d5f040c61a – < 34725ed4719da424113db8449fb5485aaf71a913
- affected 2af16c1f846bd60240745bbd3afa13d5f040c61a – < 27b376b945c0aac46fcdfcc950b14a85b874b557
- affected 5.16
- unaffected < 5.16
- unaffected 6.1.185 – ≤ 6.1.*
- unaffected 6.6.154 – ≤ 6.6.*
- unaffected 6.12.106 – ≤ 6.12.*
- unaffected 6.18.47 – ≤ 6.18.*
- unaffected 7.1.11 – ≤ 7.1.*
- unaffected 7.2.1 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References7
- https://git.kernel.org/stable/c/33ea29f8b6141f2d265de807e110a6435b355cb0 (opens in a new tab)
- https://git.kernel.org/stable/c/bd397c4123a4bc084913d8c7fdb40ef94e9f8172 (opens in a new tab)
- https://git.kernel.org/stable/c/addca61f9a23c0d20a387c2040e70479f54518e1 (opens in a new tab)
- https://git.kernel.org/stable/c/51cfd1adbe7a46bb08af162abb3ab3b6820e2d15 (opens in a new tab)
- https://git.kernel.org/stable/c/d4cabd4089adb59cf7974915737c52cc47a9bb1b (opens in a new tab)
- https://git.kernel.org/stable/c/34725ed4719da424113db8449fb5485aaf71a913 (opens in a new tab)
- https://git.kernel.org/stable/c/27b376b945c0aac46fcdfcc950b14a85b874b557 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-71415 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2026-80772)Record last updated .