In the Linux kernel, the following vulnerability has been resolved:

rxrpc: Fix rxrpc_peer leak in rxrpc_look_up_bundle()

Need to call rxrpc_put_peer() for bundle candidate before kfree() as it
holds a ref to rxrpc_peer.

[DH: v2: Changed to abstract out the bundle freeing code into a function]

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00018.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
245500d853e9f20036cec7df4f6984ece4c6bf26 affected < 35b40f724c4ef0f683d94dab3af9ab38261d782b
245500d853e9f20036cec7df4f6984ece4c6bf26 affected < bc97458620e38961af9505cc060ad4cf5c9e4af7
245500d853e9f20036cec7df4f6984ece4c6bf26 affected < ca77fba821351190777b236ce749d7c4d353102e
Linux Linux affected
Version Status Constraints
5.10 affected —
0 unaffected < 5.10
5.10.84 unaffected ≤ 5.10.*
5.15.7 unaffected ≤ 5.15.*
5.16 unaffected ≤ *

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:*

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/35b40f724c4ef0f683d94dab3af9ab38261d782b cve-icon cve-icon
https://git.kernel.org/stable/c/bc97458620e38961af9505cc060ad4cf5c9e4af7 cve-icon cve-icon
https://git.kernel.org/stable/c/ca77fba821351190777b236ce749d7c4d353102e cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2024052438-CVE-2021-47539-f0a6@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2021-47539 cve-icon
https://www.cve.org/CVERecord?id=CVE-2021-47539 cve-icon
History

Thu, 18 Sep 2025 16:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

Mon, 04 Nov 2024 12:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-05-04T07:13:07.620Z

Reserved: 2024-05-24T15:02:54.828Z

Link: CVE-2021-47539

cve-icon Vulnrichment

Updated: 2024-08-04T05:39:59.613Z

cve-icon NVD

Status : Analyzed

Published: 2024-05-24T15:15:17.963

Modified: 2025-09-18T15:55:24.377

Link: CVE-2021-47539

cve-icon Redhat

Severity : Low

Publid Date: 2024-05-24T00:00:00Z

Links: CVE-2021-47539 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-07-12T22:16:07Z

Weaknesses