Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: ump: Fix buffer overflow at UMP SysEx message conversion The conversion function from MIDI 1.0 to UMP packet contains an internal buffer to keep the incoming MIDI bytes, and its size is 4, as it was supposed to be the max size for a MIDI1 UMP packet data. However, the implementation overlooked that SysEx is handled in a different format, and it can be up to 6 bytes, as found in do_convert_to_ump(). It leads eventually to a buffer overflow, and may corrupt the memory when a longer SysEx message is received. The fix is simply to extend the buffer size to 6 to fit with the SysEx UMP message.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
0b5288f5fe63eab687c14e5940b9e0d532b129f2 to < ce4f77bef276e7d2eb7ab03a5d08bcbaa40710ecaffected0b5288f5fe63eab687c14e5940b9e0d532b129f2 to < 226beac5605afbb33f8782148d188b64396145a4affected0b5288f5fe63eab687c14e5940b9e0d532b129f2 to < 42ef48dd4ebb082a1a90b5c3feeda2e68a9e32feaffected0b5288f5fe63eab687c14e5940b9e0d532b129f2 to < 56f1f30e6795b890463d9b20b11e576adf5a2f77affected
Linux Linux
Default version status: affected
6.5affected0 to < 6.5unaffected6.6.90 to ≤ 6.6.*unaffected6.12.28 to ≤ 6.12.*unaffected6.14.6 to ≤ 6.14.*unaffected6.15 to ≤ *unaffected