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CVE-2021-47148

octeontx2-pf: fix a buffer overflow in otx2_set_rxfh_context()

HIGH
7.8
CVSS Score
Published: March 25, 2024 at 09:07 AM UTC
Updated: August 5, 2026 at 09:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: fix a buffer overflow in otx2_set_rxfh_context() This function is called from ethtool_set_rxfh() and "*rss_context" comes from the user. Add some bounds checking to prevent memory corruption.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
5.12 ≤ v < 5.12.95.12 ≤ v < 5.135.13 rc15.13 rc25.13 rc381a4362016e7d8b17031fe1aa43cdb58a7f0f163
Vendor states this is fixed in 389146bc6d2bbb20714d06624b74856320ce40f7 (fixed)
Vendor states this is fixed in e5cc361e21648b75f935f9571d4003aaee480214 (fixed)
Vendor states this is fixed in 5.12 (unaffected)
Vendor states this is fixed in 5.12.9 (unaffected)
Vendor states this is fixed in 5.13 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/389146bc6d2bbb20714d06624b74856320ce40f7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e5cc361e21648b75f935f9571d4003aaee480214

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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