Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net/sunrpc: fix reference count leaks in rpc_sysfs_xprt_state_change The refcount leak issues take place in an error handling path. When the 3rd argument buf doesn't match with "offline", "online" or "remove", the function simply returns -EINVAL and forgets to decrease the reference count of a rpc_xprt object and a rpc_xprt_switch object increased by rpc_sysfs_xprt_kobj_get_xprt() and rpc_sysfs_xprt_kobj_get_xprt_switch(), causing reference count leaks of both unused objects. Fix this issue by jumping to the error handling path labelled with out_put when buf matches none of "offline", "online" or "remove".
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.15.24 |
References
- https://git.kernel.org/stable/c/4b22aa42bd4d2d630ef1854c139275c3532937cbMailing ListPatch
- https://git.kernel.org/stable/c/5f6024c05a2c0fdd180b29395aaf686d25af3a0fMailing ListPatch
- https://git.kernel.org/stable/c/776d794f28c95051bc70405a7b1fa40115658a18Mailing ListPatch
- https://git.kernel.org/stable/c/4b22aa42bd4d2d630ef1854c139275c3532937cbMailing ListPatch
- https://git.kernel.org/stable/c/5f6024c05a2c0fdd180b29395aaf686d25af3a0fMailing ListPatch
- https://git.kernel.org/stable/c/776d794f28c95051bc70405a7b1fa40115658a18Mailing ListPatch
FAQ
What is CVE-2021-47624?
CVE-2021-47624 is a vulnerability with a CVSS score of 7.1 (HIGH). In the Linux kernel, the following vulnerability has been resolved: net/sunrpc: fix reference count leaks in rpc_sysfs_xprt_state_change The refcount leak issues take place in an error handling path...
How severe is CVE-2021-47624?
CVE-2021-47624 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-47624?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.