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Description

In the Linux kernel, the following vulnerability has been resolved: net/sunrpc: fix potential memory leaks in rpc_sysfs_xprt_state_change() The issue happens on some error handling paths. When the function fails to grab the object `xprt`, it simply returns 0, forgetting to decrease the reference count of another object `xps`, which is increased by rpc_sysfs_xprt_kobj_get_xprt_switch(), causing refcount leaks. Also, the function forgets to check whether `xps` is valid before using it, which may result in NULL-dereferencing issues. Fix it by adding proper error handling code when either `xprt` or `xps` is NULL.

PUBLISHED Reserved 2025-06-18 | Published 2025-06-18 | Updated 2025-06-18 | Assigner Linux

Product status

Default status
unaffected

5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b (git) before c0434f0e058648649250b8ed6078b66d773de723
affected

5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b (git) before 76fbeb1662b1c56514325118a07fba74dc4c79fe
affected

5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b (git) before bfc48f1b0505ffcb03a6d749139b7577d6b81ae0
affected

Default status
affected

5.14
affected

Any version before 5.14
unaffected

5.15.63 (semver)
unaffected

5.19.4 (semver)
unaffected

6.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/c0434f0e058648649250b8ed6078b66d773de723

git.kernel.org/...c/76fbeb1662b1c56514325118a07fba74dc4c79fe

git.kernel.org/...c/bfc48f1b0505ffcb03a6d749139b7577d6b81ae0

cve.org (CVE-2022-50046)

nvd.nist.gov (CVE-2022-50046)

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Data based on CVE®. Copyright © 1999-2025, The MITRE Corporation. All rights reserved.