Bug 2293263 (CVE-2021-47616)
| Summary: | CVE-2021-47616 kernel: RDMA: Fix use-after-free in rxe_queue_cleanup | ||
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| Product: | [Other] Security Response | Reporter: | Avinash Hanwate <ahanwate> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | dfreiber, drow, gmcnealy, jburrell, mbenatto, vkumar |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | kernel 5.15.10, kernel 5.16 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 2293209 | ||
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Description
Avinash Hanwate
2024-06-20 11:15:56 UTC
1-Comparing the code that fixes the patch, particularly the file /drivers/infiniband/sw/rxe/rxe_qp.c vs kernel-4.18.0.425.3.1
diff --git a/drivers/infiniband/sw/rxe/rxe_qp.c b/drivers/infiniband/sw/rxe/rxe_qp.c
index 1ab6af7ddb2549..ed326d82725cd1 100644
--- a/drivers/infiniband/sw/rxe/rxe_qp.c
+++ b/drivers/infiniband/sw/rxe/rxe_qp.c
@@ -367,6 +367,7 @@ int rxe_qp_from_init(struct rxe_dev *rxe, struct rxe_qp *qp, struct rxe_pd *pd,
err2:
rxe_queue_cleanup(qp->sq.queue);
+ qp->sq.queue = NULL;
err1:
qp->pd = NULL;
qp->rcq = NULL;
The kernel-4.18.0.425.3.1 includes the patched lines.
--------------------
353 err2:
354 rxe_queue_cleanup(qp->sq.queue);
355 qp->sq.queue = NULL;
356 err1:
--------------------
Based on the above, I can confirm that the kernel4.18.0-425.3.1 code has been patched, however I see that this was fixed in RHEL 8.7.
https://access.redhat.com/security/cve/cve-2021-47616
Was this fixed in kernel4.18.0-425.3.1 or RHEL 8.7?
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