CVE-2022-50876
Unknown
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);
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedDec 30, 2025
First seenDec 30, 2025
How to fix
Update
- Linux Linux826f84ab04a5cafe484ea9c2c85a3930068e5cb7, a1008c8b9f357691ce6a8fdb8f157aecb2d79167, 7c80f3a918ba9aa26fb699ee887064ec3af0396a, d6afcab1b48f4051211c50145b9e91be3b1b42c9, acf0006f2b2b2ca672988875fd154429aafb2a9b, 3c84c7f592c4ba38f54ddaddd0115acc443025db, a9ccd2ab1becf5dcb6d57e9fcd981f5eaa606c96, 523313881f0aa5cbbdb548ce575b6e58b202bd76, eea4c860c3b366369eff0489d94ee4f0571d467d or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 03840fad004ce8a56bc8b3bb60a2df10f6f9481e ≤ v < 826f84ab04a5cafe484ea9c2c85a3930068e5cb7, 03840fad004ce8a56bc8b3bb60a2df10f6f9481e ≤ v < a1008c8b9f357691ce6a8fdb8f157aecb2d79167, 03840fad004ce8a56bc8b3bb60a2df10f6f9481e ≤ v < 7c80f3a918ba9aa26fb699ee887064ec3af0396a, 03840fad004ce8a56bc8b3bb60a2df10f6f9481e ≤ v < d6afcab1b48f4051211c50145b9e91be3b1b42c9, 03840fad004ce8a56bc8b3bb60a2df10f6f9481e ≤ v < acf0006f2b2b2ca672988875fd154429aafb2a9b, 03840fad004ce8a56bc8b3bb60a2df10f6f9481e ≤ v < 3c84c7f592c4ba38f54ddaddd0115acc443025db, 03840fad004ce8a56bc8b3bb60a2df10f6f9481e ≤ v < a9ccd2ab1becf5dcb6d57e9fcd981f5eaa606c96, 03840fad004ce8a56bc8b3bb60a2df10f6f9481e ≤ v < 523313881f0aa5cbbdb548ce575b6e58b202bd76, 03840fad004ce8a56bc8b3bb60a2df10f6f9481e ≤ v < eea4c860c3b366369eff0489d94ee4f0571d467d, 4.3 | 826f84ab04a5cafe484ea9c2c85a3930068e5cb7, a1008c8b9f357691ce6a8fdb8f157aecb2d79167, 7c80f3a918ba9aa26fb699ee887064ec3af0396a, d6afcab1b48f4051211c50145b9e91be3b1b42c9, acf0006f2b2b2ca672988875fd154429aafb2a9b, 3c84c7f592c4ba38f54ddaddd0115acc443025db, a9ccd2ab1becf5dcb6d57e9fcd981f5eaa606c96, 523313881f0aa5cbbdb548ce575b6e58b202bd76, eea4c860c3b366369eff0489d94ee4f0571d467d |
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