Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: NFSv4.2: fix reference count leaks in _nfs42_proc_copy_notify() [You don't often get email from xiongx18@fudan.edu.cn. Learn why this is important at http://aka.ms/LearnAboutSenderIdentification.] The reference counting issue happens in two error paths in the function _nfs42_proc_copy_notify(). In both error paths, the function simply returns the error code and forgets to balance the refcount of object `ctx`, bumped by get_nfs_open_context() earlier, which may cause refcount leaks. Fix it by balancing refcount of the `ctx` object before the function returns in both error paths.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 0491567b51efeca807da1125a1a0d5193875e286 before 9b9feec97c1fc7dd9bb69f62c4905cddf1801599; affected 0491567b51efeca807da1125a1a0d5193875e286 before b37f482ba9f0e6382c188e3fccf6c4b2fdc938eb; affected 0491567b51efeca807da1125a1a0d5193875e286 before fb73bf6305f4eb8f0cf9a61ee874d55f019d6dc4; affected 0491567b51efeca807da1125a1a0d5193875e286 before f46f632f9cfae4b2e3635fa58840a8ec584c42e3; affected 0491567b51efeca807da1125a1a0d5193875e286 before b7f114edd54326f730a754547e7cfb197b5bc132 |
| Linux / Linux | affected 5.5; unaffected 0 before 5.5; unaffected 5.10.111 through 5.10.*; unaffected 5.15.34 through 5.15.*; unaffected 5.16.20 through 5.16.*; unaffected 5.17.3 through 5.17.*; unaffected 5.18 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/9b9feec97c1fc7dd9bb69f62c4905cddf1801599
- https://git.kernel.org/stable/c/b37f482ba9f0e6382c188e3fccf6c4b2fdc938eb
- https://git.kernel.org/stable/c/fb73bf6305f4eb8f0cf9a61ee874d55f019d6dc4
- https://git.kernel.org/stable/c/f46f632f9cfae4b2e3635fa58840a8ec584c42e3
- https://git.kernel.org/stable/c/b7f114edd54326f730a754547e7cfb197b5bc132
ADP enrichment
No English description supplied.
No references supplied.