Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: RDMA: Fix use-after-free in rxe_queue_cleanup On error handling path in rxe_qp_from_init() qp->sq.queue is freed and then rxe_create_qp() will drop last reference to this object. qp clean up function will try to free this queue one time and it causes UAF bug. Fix it by zeroing queue pointer after freeing queue in rxe_qp_from_init().
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.15, < 5.15.10 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/84b01721e8042cdd1e8ffeb648844a09cd4213e0Patch
- https://git.kernel.org/stable/c/acb53e47db1fbc7cd37ab10b46388f045a76e383Patch
- https://git.kernel.org/stable/c/84b01721e8042cdd1e8ffeb648844a09cd4213e0Patch
- https://git.kernel.org/stable/c/acb53e47db1fbc7cd37ab10b46388f045a76e383Patch
FAQ
What is CVE-2021-47616?
CVE-2021-47616 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: RDMA: Fix use-after-free in rxe_queue_cleanup On error handling path in rxe_qp_from_init() qp->sq.queue is freed and then rxe_crea...
How severe is CVE-2021-47616?
CVE-2021-47616 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-47616?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.