CVE-2022-50876
usb: musb: Fix musb_gadget.c rxstate overflow bug
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: usb: musb: Fix musb_gadget.c rxstate overflow bug The usb function device call musb_gadget_queue() adds the passed request to musb_ep::req_list,If the (request->length > musb_ep->packet_sz) and (is_buffer_mapped(req) return false),the rxstate() will copy all data in fifo to request->buf which may cause request->buf out of bounds. Fix it by add the length check : fifocnt = min_t(unsigned, request->length - request->actual, fifocnt);
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.
- EPSS (exploitation in 30 days)
- 0.23% · top 86% of all CVEs (6 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 03840fad004ce8a56bc8b3bb60a2df10f6f9481e – < 826f84ab04a5cafe484ea9c2c85a3930068e5cb7
- affected 03840fad004ce8a56bc8b3bb60a2df10f6f9481e – < a1008c8b9f357691ce6a8fdb8f157aecb2d79167
- affected 03840fad004ce8a56bc8b3bb60a2df10f6f9481e – < 7c80f3a918ba9aa26fb699ee887064ec3af0396a
- affected 03840fad004ce8a56bc8b3bb60a2df10f6f9481e – < d6afcab1b48f4051211c50145b9e91be3b1b42c9
- affected 03840fad004ce8a56bc8b3bb60a2df10f6f9481e – < acf0006f2b2b2ca672988875fd154429aafb2a9b
- affected 03840fad004ce8a56bc8b3bb60a2df10f6f9481e – < 3c84c7f592c4ba38f54ddaddd0115acc443025db
- affected 03840fad004ce8a56bc8b3bb60a2df10f6f9481e – < a9ccd2ab1becf5dcb6d57e9fcd981f5eaa606c96
- affected 03840fad004ce8a56bc8b3bb60a2df10f6f9481e – < 523313881f0aa5cbbdb548ce575b6e58b202bd76
- affected 03840fad004ce8a56bc8b3bb60a2df10f6f9481e – < eea4c860c3b366369eff0489d94ee4f0571d467d
- affected 4.3
- unaffected < 4.3
- unaffected 4.9.331 – ≤ 4.9.*
- unaffected 4.14.296 – ≤ 4.14.*
- unaffected 4.19.262 – ≤ 4.19.*
- unaffected 5.4.220 – ≤ 5.4.*
- unaffected 5.10.150 – ≤ 5.10.*
- unaffected 5.15.75 – ≤ 5.15.*
- unaffected 5.19.17 – ≤ 5.19.*
- unaffected 6.0.3 – ≤ 6.0.*
- unaffected 6.1 – ≤ *
References (9)
- https://git.kernel.org/stable/c/826f84ab04a5cafe484ea9c2c85a3930068e5cb7 (opens in a new tab)
- https://git.kernel.org/stable/c/a1008c8b9f357691ce6a8fdb8f157aecb2d79167 (opens in a new tab)
- https://git.kernel.org/stable/c/7c80f3a918ba9aa26fb699ee887064ec3af0396a (opens in a new tab)
- https://git.kernel.org/stable/c/d6afcab1b48f4051211c50145b9e91be3b1b42c9 (opens in a new tab)
- https://git.kernel.org/stable/c/acf0006f2b2b2ca672988875fd154429aafb2a9b (opens in a new tab)
- https://git.kernel.org/stable/c/3c84c7f592c4ba38f54ddaddd0115acc443025db (opens in a new tab)
- https://git.kernel.org/stable/c/a9ccd2ab1becf5dcb6d57e9fcd981f5eaa606c96 (opens in a new tab)
- https://git.kernel.org/stable/c/523313881f0aa5cbbdb548ce575b6e58b202bd76 (opens in a new tab)
- https://git.kernel.org/stable/c/eea4c860c3b366369eff0489d94ee4f0571d467d (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)
- 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://trackcve.app/cve/CVE-2022-50876)Record last updated .