CVE-2024-46842 (GCVE-0-2024-46842)

Vulnerability from cvelistv5 – Published: 2024-09-27 12:39 – Updated: 2026-01-05 10:53
VLAI?
Title
scsi: lpfc: Handle mailbox timeouts in lpfc_get_sfp_info
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 479b0917e4477f49df2e3be454aac3cfa5dec171 , < bba47fe3b038cca3d3ebd799665ce69d6d273b58 (git)
Affected: 479b0917e4477f49df2e3be454aac3cfa5dec171 , < ede596b1434b57c0b3fd5c02b326efe5c54f6e48 (git)
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    Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.10.10 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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