CVE-2021-47624 (GCVE-0-2021-47624)

Vulnerability from cvelistv5 – Published: 2024-07-16 11:29 – Updated: 2025-05-21 08:31
VLAI?
Title
net/sunrpc: fix reference count leaks in rpc_sysfs_xprt_state_change
Summary
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".
Severity ?
No CVSS data available.
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: 5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b , < 4b22aa42bd4d2d630ef1854c139275c3532937cb (git)
Affected: 5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b , < 5f6024c05a2c0fdd180b29395aaf686d25af3a0f (git)
Affected: 5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b , < 776d794f28c95051bc70405a7b1fa40115658a18 (git)
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    Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.24 , ≤ 5.15.* (semver)
Unaffected: 5.16.10 , ≤ 5.16.* (semver)
Unaffected: 5.17 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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