CVE-2021-47427

In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi: Fix iscsi_task use after free Commit d39df158518c ("scsi: iscsi: Have abort handler get ref to conn") added iscsi_get_conn()/iscsi_put_conn() calls during abort handling but then also changed the handling of the case where we detect an already completed task where we now end up doing a goto to the common put/cleanup code. This results in a iscsi_task use after free, because the common cleanup code will do a put on the iscsi_task. This reverts the goto and moves the iscsi_get_conn() to after we've checked if the iscsi_task is valid.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*

History

31 Dec 2024, 20:04

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-416
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.8
First Time Linux linux Kernel
Linux
References () https://git.kernel.org/stable/c/1642f51ac0d4f2b55d5748094c49ff8f7191b93c - () https://git.kernel.org/stable/c/1642f51ac0d4f2b55d5748094c49ff8f7191b93c - Patch
References () https://git.kernel.org/stable/c/258aad75c62146453d03028a44f2f1590d58e1f6 - () https://git.kernel.org/stable/c/258aad75c62146453d03028a44f2f1590d58e1f6 - Patch

Information

Published : 2024-05-21 15:15

Updated : 2024-12-31 20:04


NVD link : CVE-2021-47427

Mitre link : CVE-2021-47427

CVE.ORG link : CVE-2021-47427


JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free