How many CVEs have patched cpumask_test_cpu?

2 published CVEs changed cpumask_test_cpu in torvalds/linux, in 9 distinct patches totalling 15 changed lines, between 2017 and 2026.

What is the latest CVE that changed cpumask_test_cpu?

CVE-2026-89771 (ring-buffer: Fix subbuf resize race with ring buffer readers), published 2026-09-11, changed lines 3027 of kernel/trace/ring_buffer.c.

How does cpumask_test_cpu compare to the rest of torvalds/linux?

torvalds/linux has 19,281 CVEs with a located fix in total; 2 of them changed cpumask_test_cpu.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

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torvalds/linux

Function

cpumask_test_cpu

Name: cpumask_test_cpu in torvalds/linux: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

kernel/trace/ring_buffer.c

Last patched September 11, 2026

2

CVEs

That changed this function

9

Distinct patches

Backports counted once

15

Lines changed

Added plus removed

2017–2026

Years

By CVE publication date

Overview

cpumask_test_cpu in torvalds/linux was changed by 2 published CVE fixes between 2017 and 2026, in 9 distinct patches that added or removed 15 lines in total.

torvalds/linux has 19,281 CVEs with a located fix in total, so 0% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed cpumask_test_cpu, newest first, with the lines each fix touched.

ring-buffer: Fix subbuf resize race with ring buffer readers
CVE-2026-89771 · line 3027 · +0 −6
High · CVSS 7.8
EPSS 0.1%2026-09-11
CVE-2016-9754
CVE-2016-9754 · lines 1660–1666 · +4 −5
High · CVSS 7.8
EPSS 0.5%2017-01-05

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Other functions in these files

Functions in the same file that CVE fixes also changed.

Other hotspots in the repository

Functions in torvalds/linux changed by the most CVE fixes.

smb2_sess_setup13 CVEs · fs/smb/server/smb2pdu.c adjust_ptr_min_max_vals13 CVEs · kernel/bpf/verifier.c ext4_fill_super13 CVEs · fs/ext4/super.c bcm_rx_setup12 CVEs · net/can/bcm.c copy_process12 CVEs · kernel/fork.c smb2_sess_setup11 CVEs · fs/ksmbd/smb2pdu.c

All patched functions in torvalds/linux

Frequently asked questions

Common questions about CVE fixes to cpumask_test_cpu.

How many CVEs have patched cpumask_test_cpu?: 2 published CVEs changed cpumask_test_cpu in torvalds/linux, in 9 distinct patches totalling 15 changed lines, between 2017 and 2026.
What is the latest CVE that changed cpumask_test_cpu?: CVE-2026-89771 (ring-buffer: Fix subbuf resize race with ring buffer readers), published 2026-09-11, changed lines 3027 of kernel/trace/ring_buffer.c.
How does cpumask_test_cpu compare to the rest of torvalds/linux?: torvalds/linux has 19,281 CVEs with a located fix in total; 2 of them changed cpumask_test_cpu.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

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