How many CVEs have patched ring_buffer_swap_cpu?

2 published CVEs changed ring_buffer_swap_cpu in torvalds/linux, in 15 distinct patches totalling 15 changed lines, between 2025 and 2026.

What is the latest CVE that changed ring_buffer_swap_cpu?

CVE-2026-74601 (ring-buffer: Use current_context for safe per-CPU buffer swap), published 2026-08-22, changed lines 5452 to 5455 of kernel/trace/ring_buffer.c.

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

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

torvalds/linux

Function

ring_buffer_swap_cpu

Name: ring_buffer_swap_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 August 22, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2025–2026

Years

By CVE publication date

Overview

ring_buffer_swap_cpu in torvalds/linux was changed by 2 published CVE fixes between 2025 and 2026, in 15 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 ring_buffer_swap_cpu, newest first, with the lines each fix touched.

ring-buffer: Use current_context for safe per-CPU buffer swap
CVE-2026-74601 · lines 5452–5455 · +3 −3
High · CVSS 7.8
EPSS 0.1%2026-08-22
ring-buffer: Do not swap cpu_buffer during resize process
CVE-2023-53718 · lines 5545–5553 · +9 −0
High · CVSS 7.8
EPSS 0.2%2025-10-22

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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 ring_buffer_swap_cpu.

How many CVEs have patched ring_buffer_swap_cpu?: 2 published CVEs changed ring_buffer_swap_cpu in torvalds/linux, in 15 distinct patches totalling 15 changed lines, between 2025 and 2026.
What is the latest CVE that changed ring_buffer_swap_cpu?: CVE-2026-74601 (ring-buffer: Use current_context for safe per-CPU buffer swap), published 2026-08-22, changed lines 5452 to 5455 of kernel/trace/ring_buffer.c.
How does ring_buffer_swap_cpu compare to the rest of torvalds/linux?: torvalds/linux has 19,281 CVEs with a located fix in total; 2 of them changed ring_buffer_swap_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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