What is CVE-2021-47130?

CVE-2021-47130 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.4 out of 10, affecting Linux kernel versions from 5.8 onward and patched in 5.10.43, 5.12.10 and 5.13. CVE-2021-47130 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47130?

CVE-2021-47130 has a CVSS score of 4.4 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2021-47130?

Yes, CVE-2021-47130 has been patched. Fixed versions include 5.10.43, 5.12.10 and 5.13. If you are running Linux kernel 5.8 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47130 actively exploited?

CVE-2021-47130 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47130

Medium

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix freeing unallocated p2pmem In case p2p device was found but the p2p pool is empty, the nvme target is still trying to free the sgl from the p2p pool instead of the regular sgl pool and causing a crash (BUG() is called). Instead, assign the p2p_dev for the request only if it was allocated from p2p pool. This is the crash that was caused: [Sun May 30 19:13:53 2021] ------------[ cut here ]------------ [Sun May 30 19:13:53 2021] kernel BUG at lib/genalloc.c:518! [Sun May 30 19:13:53 2021] invalid opcode: 0000 [#1] SMP PTI ... [Sun May 30 19:13:53 2021] kernel BUG at lib/genalloc.c:518! ... [Sun May 30 19:13:53 2021] RIP: 0010:gen_pool_free_owner+0xa8/0xb0 ... [Sun May 30 19:13:53 2021] Call Trace: [Sun May 30 19:13:53 2021] ------------[ cut here ]------------ [Sun May 30 19:13:53 2021] pci_free_p2pmem+0x2b/0x70 [Sun May 30 19:13:53 2021] pci_p2pmem_free_sgl+0x4f/0x80 [Sun May 30 19:13:53 2021] nvmet_req_free_sgls+0x1e/0x80 [nvmet] [Sun May 30 19:13:53 2021] kernel BUG at lib/genalloc.c:518! [Sun May 30 19:13:53 2021] nvmet_rdma_release_rsp+0x4e/0x1f0 [nvmet_rdma] [Sun May 30 19:13:53 2021] nvmet_rdma_send_done+0x1c/0x60 [nvmet_rdma]

Package Linux Kernel

Published 2024-03-15

Last modified 2025-04-04

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

4.4

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-770

CVE-2021-47130 is classified as CWE-770

See CWE-770 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 5.8 and later are affected. Fixed in 5.10.43, 5.12.10, 5.13 and their respective stable series.

Affected from

≥ 5.8

Fixed in

✓ 5.10.43 5.10.x ✓ 5.12.10 5.12.x ✓ 5.13

References

3 total

Kernel Git
https://git.kernel.org/stable/c/8a452d62e7cea3c8a2676a3b89a9118755a1a271

Patch
Kernel Git
https://git.kernel.org/stable/c/bcd9a0797d73eeff659582f23277e7ab6e5f18f3

Patch
Kernel Git
https://git.kernel.org/stable/c/c440cd080761b18a52cac20f2a42e5da1e3995af

Patch

Details

CVE ID CVE-2021-47130

Severity Medium

CVSS score 4.4 / 10

CVSS version 3.1

Published 2024-03-15

Modified 2025-04-04

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47130?

CVE-2021-47130 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.4 out of 10 . It affects Linux kernel versions from 5.8 onward and has been patched in 5.10.43, 5.12.10 and 5.13. CVE-2021-47130 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47130?

CVE-2021-47130 has a CVSS score of 4.4 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2021-47130?

Yes. CVE-2021-47130 has been patched. Fixed versions include 5.10.43, 5.12.10 and 5.13. If you are running Linux kernel 5.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47130 actively exploited?

No. CVE-2021-47130 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.