cve-2021-47427
Vulnerability from cvelistv5
Published
2024-05-21 15:04
Modified
2024-12-19 07:41
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1642f51ac0d4f2b55d5748094c49ff8f7191b93cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/258aad75c62146453d03028a44f2f1590d58e1f6Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1642f51ac0d4f2b55d5748094c49ff8f7191b93cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/258aad75c62146453d03028a44f2f1590d58e1f6Patch
Impacted products
Vendor Product Version
Linux Linux Version: d39df158518ccc3bf24ee18082b5e100c8f014aa
Version: d39df158518ccc3bf24ee18082b5e100c8f014aa
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   Linux Linux Version: 5.14
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