Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: mailbox: riscv-sbi-mpxy: validate RPMI notification lengths The SBI return value controls how many bytes are copied from shared memory into the RPMI notification buffer. It is not validated against the negotiated shared-memory size before that copy. The event walker also uses a reversed loop condition and can inspect a short event record. Validate the complete notification length before copying it, iterate only while a full event header remains, and stop when a declared event payload extends beyond the copied notification data.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected bf3022a4eb119c6b4e3424d6b19d8bfdfbc9bb57 before cbc24bce70dfd91c7b2f53b4fa896e9a4b6d6a6b; affected bf3022a4eb119c6b4e3424d6b19d8bfdfbc9bb57 before c7bc5e7677bcda7a446d63b989cfaa3fe91d6b76; affected bf3022a4eb119c6b4e3424d6b19d8bfdfbc9bb57 before 11d5af151bcbe78f5a579e0faecd3be9cea0399a |
| Linux / Linux | affected 6.18; unaffected 0 before 6.18; unaffected 6.18.52 through 6.18.*; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.