CVE-2024-46842
- Source
- https://cve.org/CVERecord?id=CVE-2024-46842
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-46842.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-46842
- Downstream
- Related
- Published
- 2024-09-27T12:39:36Z
- Modified
- 2026-08-12T03:30:41Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- scsi: lpfc: Handle mailbox timeouts in lpfc_get_sfp_info
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46842.json" }- References
-
- https://git.kernel.org/stable/c/bba47fe3b038cca3d3ebd799665ce69d6d273b58
- https://git.kernel.org/stable/c/ede596b1434b57c0b3fd5c02b326efe5c54f6e48
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46842.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-46842
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git