cbcvebase.
CVE-2024-46842
published 2024-09-27

CVE-2024-46842: 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…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.21%
12.0th percentile
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.

Affected

8 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.10.11-1 (forky)linux 6.10.11-1 (forky)
linuxlinux
linuxlinux>= 479b0917e4477f49df2e3be454aac3cfa5dec171 < bba47fe3b038cca3d3ebd799665ce69d6d273b58bba47fe3b038cca3d3ebd799665ce69d6d273b58
linuxlinux>= 479b0917e4477f49df2e3be454aac3cfa5dec171 < ede596b1434b57c0b3fd5c02b326efe5c54f6e48ede596b1434b57c0b3fd5c02b326efe5c54f6e48
linuxlinux_kernel< 6.10.106.10.10
linuxlinux_kernel>= 0 < 6.10.11-16.10.11-1
linuxlinux_kernel>= 0 < 6.10.11-16.10.11-1
linuxlinux_kernel>= 0 < 6.8.0-50.516.8.0-50.51

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
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