CVE-2022-50876usb: musb: Fix musb_gadget.c rxstate overflow bug
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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);
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Deferred
- Record last updated
- May 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 03840fad004ce8a56bc8b3bb60a2df10f6f9481e builds before 826f84ab04a5cafe484ea9c2c85a3930068e5cb7; from 03840fad004ce8a56bc8b3bb60a2df10f6f9481e before a1008c8b9f357691ce6a8fdb8f157aecb2d79167; 03840fad004ce8a56bc8b3bb60a2df10f6f9481e builds before 7c80f3a918ba9aa26fb699ee887064ec3af0396a; from 03840fad004ce8a56bc8b3bb60a2df10f6f9481e before d6afcab1b48f4051211c50145b9e91be3b1b42c9; from 03840fad004ce8a56bc8b3bb60a2df10f6f9481e before acf0006f2b2b2ca672988875fd154429aafb2a9b; 03840fad004ce8a56bc8b3bb60a2df10f6f9481e builds before 3c84c7f592c4ba38f54ddaddd0115acc443025db; from 03840fad004ce8a56bc8b3bb60a2df10f6f9481e before a9ccd2ab1becf5dcb6d57e9fcd981f5eaa606c96; from 03840fad004ce8a56bc8b3bb60a2df10f6f9481e before 523313881f0aa5cbbdb548ce575b6e58b202bd76; and 1 more ranges | CNA record |
References
- https://git.kernel.org/stable/c/826f84ab04a5cafe484ea9c2c85a3930068e5cb7
- https://git.kernel.org/stable/c/a1008c8b9f357691ce6a8fdb8f157aecb2d79167
- https://git.kernel.org/stable/c/7c80f3a918ba9aa26fb699ee887064ec3af0396a
- https://git.kernel.org/stable/c/d6afcab1b48f4051211c50145b9e91be3b1b42c9
- https://git.kernel.org/stable/c/acf0006f2b2b2ca672988875fd154429aafb2a9b
- https://git.kernel.org/stable/c/3c84c7f592c4ba38f54ddaddd0115acc443025db
- https://git.kernel.org/stable/c/a9ccd2ab1becf5dcb6d57e9fcd981f5eaa606c96
- https://git.kernel.org/stable/c/523313881f0aa5cbbdb548ce575b6e58b202bd76
- https://git.kernel.org/stable/c/eea4c860c3b366369eff0489d94ee4f0571d467d
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.