01 Record

CVE-2021-47103

inet: fully convert sk->sk_rx_dst to RCU rules

CriticalPUBLISHEDCNA: Linux

CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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02 Description

inet: fully convert sk->sk_rx_dst to RCU rules

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.95% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 58.9% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-03-04 18:10Z2 YR AGO

Last updated

2026-08-05 08:46Z1 MO AGO

Reserved

2024-02-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

6a4fa6d3ea676052df5ed3e59f7a4527835f9e9bd5c1f469bc4ac7caab476941

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux41063e9dd11956f2d285e12e4342e1d232ba0ea2 to < 68c34ce11ef23328692aa35fa6aaafdd75913100, 41063e9dd11956f2d285e12e4342e1d232ba0ea2 to < 92e6e36ecd16808866ac6172b9491b5097cde449, 41063e9dd11956f2d285e12e4342e1d232ba0ea2 to < 75a578000ae5e511e5d0e8433c94a14d9c99c412, 41063e9dd11956f2d285e12e4342e1d232ba0ea2 to < c3bb4a7e8cbc984e1cdac0fe6af60e880214ed6e, 41063e9dd11956f2d285e12e4342e1d232ba0ea2 to < f039b43cbaea5e0700980c2f0052da05a70782e0, 41063e9dd11956f2d285e12e4342e1d232ba0ea2 to < 0249a4b8a554f2eb6a27b62516fa50168584faa4, 41063e9dd11956f2d285e12e4342e1d232ba0ea2 to < 8f905c0e7354ef261360fb7535ea079b1082c105, 3.6—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/68c34ce11ef23328692aa35fa6aaafdd75913100
git.kernel.orghttps://git.kernel.org/stable/c/92e6e36ecd16808866ac6172b9491b5097cde449
git.kernel.orghttps://git.kernel.org/stable/c/75a578000ae5e511e5d0e8433c94a14d9c99c412
git.kernel.orghttps://git.kernel.org/stable/c/c3bb4a7e8cbc984e1cdac0fe6af60e880214ed6e
git.kernel.orghttps://git.kernel.org/stable/c/f039b43cbaea5e0700980c2f0052da05a70782e0
git.kernel.orghttps://git.kernel.org/stable/c/0249a4b8a554f2eb6a27b62516fa50168584faa4
git.kernel.orghttps://git.kernel.org/stable/c/8f905c0e7354ef261360fb7535ea079b1082c105

01 Record index

CVE-2021-47103

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47103

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References