5.5

CVE-2021-47203

scsi: lpfc: Fix list_add() corruption in lpfc_drain_txq()

In the Linux kernel, the following vulnerability has been resolved:

scsi: lpfc: Fix list_add() corruption in lpfc_drain_txq()

When parsing the txq list in lpfc_drain_txq(), the driver attempts to pass
the requests to the adapter. If such an attempt fails, a local "fail_msg"
string is set and a log message output.  The job is then added to a
completions list for cancellation.

Processing of any further jobs from the txq list continues, but since
"fail_msg" remains set, jobs are added to the completions list regardless
of whether a wqe was passed to the adapter.  If successfully added to
txcmplq, jobs are added to both lists resulting in list corruption.

Fix by clearing the fail_msg string after adding a job to the completions
list. This stops the subsequent jobs from being added to the completions
list unless they had an appropriate failure.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.4.293
Linux ≫ Linux Kernel Version >= 4.5 < 4.9.291
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.256
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.218
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.162
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.82
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.5
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.146
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://git.kernel.org/stable/c/16bcbfb56d759c25665f786e33ec633b9508a08f
Patch
https://git.kernel.org/stable/c/814d3610c4ce86e8cf285b2cdac0057a42e82de5
Patch
https://git.kernel.org/stable/c/99154581b05c8fb22607afb7c3d66c1bace6aa5d
Patch
https://git.kernel.org/stable/c/ad4776b5eb2e58af1226847fcd3b4f6d051674dd
Patch
https://git.kernel.org/stable/c/b291d147d0268e93ad866f8bc820ea14497abc9b
Patch
https://git.kernel.org/stable/c/c097bd5a59162156d9c2077a2f58732ffbaa9fca
Patch
https://git.kernel.org/stable/c/ec70d80a8642900086447ba0cdc79e3f44d42e8f
Patch
https://git.kernel.org/stable/c/f05a0191b90156e539cccc189b9d87ca2a4d9305
Patch