In the Linux kernel, the following vulnerability has been resolved:
scsi: lpfc: Fix link down processing to address NULL pointer dereference
If an FC link down transition while PLOGIs are outstanding to fabric well
known addresses, outstanding ABTS requests may result in a NULL pointer
dereference. Driver unload requests may hang with repeated "2878" log
messages.
The Link down processing results in ABTS requests for outstanding ELS
requests. The Abort WQEs are sent for the ELSs before the driver had set
the link state to down. Thus the driver is sending the Abort with the
expectation that an ABTS will be sent on the wire. The Abort request is
stalled waiting for the link to come up. In some conditions the driver may
auto-complete the ELSs thus if the link does come up, the Abort completions
may reference an invalid structure.
Fix by ensuring that Abort set the flag to avoid link traffic if issued due
to conditions where the link failed.
Metrics
Affected Vendors & Products
References
History
Wed, 11 Sep 2024 18:30:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
ssvc
|
Wed, 11 Sep 2024 13:30:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
ssvc
|
MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-04-10T18:56:24.383Z
Updated: 2024-09-11T17:33:40.539Z
Reserved: 2024-03-25T09:12:14.112Z
Link: CVE-2021-47183
Vulnrichment
Updated: 2024-08-04T05:32:07.383Z
NVD
Status : Awaiting Analysis
Published: 2024-04-10T19:15:47.287
Modified: 2024-04-10T19:49:51.183
Link: CVE-2021-47183
Redhat