Description
In the Linux kernel, the following vulnerability has been resolved:
scsi: lpfc: Handle mailbox timeouts in lpfc_get_sfp_info
The MBX_TIMEOUT return code is not handled in lpfc_get_sfp_info and the routine unconditionally frees submitted mailbox commands regardless of return status. The issue is that for MBX_TIMEOUT cases, when firmware returns SFP information at a later time, that same mailbox memory region references previously freed memory in its cmpl routine.
Fix by adding checks for the MBX_TIMEOUT return code. During mailbox resource cleanup, check the mbox flag to make sure that the wait did not timeout. If the MBOX_WAKE flag is not set, then do not free the resources because it will be freed when firmware completes the mailbox at a later time in its cmpl routine.
Also, increase the timeout from 30 to 60 seconds to accommodate boot scripts requiring longer timeouts.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 479b0917e4477f49df2e3be454aac3cfa5dec171, < c6d8cce685d6088d795b29a0f47e6fd04548fd64; >= 479b0917e4477f49df2e3be454aac3cfa5dec171, < bba47fe3b038cca3d3ebd799665ce69d6d273b58; >= 479b0917e4477f49df2e3be454aac3cfa5dec171, < ede596b1434b57c0b3fd5c02b326efe5c54f6e48 |
| Linux | Linux | 6.2 |
References
Timeline
- Published
- Sep 27, 2024
- Last modified
- Oct 21, 2026
- NVD status
- Modified