How many CVEs have patched rb_meta_valid?

2 published CVEs changed rb_meta_valid in torvalds/linux, in 4 distinct patches totalling 16 changed lines, between 2025 and 2026.

What is the latest CVE that changed rb_meta_valid?

CVE-2026-98057 (ring-buffer: Add checking nr_subbufs to persistent ring buffer validation), published 2026-09-25, changed lines 1746 to 1750 of kernel/trace/ring_buffer.c.

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

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

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

rb_meta_valid

Name: rb_meta_valid 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 25, 2026

2

CVEs

That changed this function

4

Distinct patches

Backports counted once

16

Lines changed

Added plus removed

2025–2026

Years

By CVE publication date

Overview

rb_meta_valid in torvalds/linux was changed by 2 published CVE fixes between 2025 and 2026, in 4 distinct patches that added or removed 16 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 rb_meta_valid, newest first, with the lines each fix touched.

ring-buffer: Add checking nr_subbufs to persistent ring buffer validation
CVE-2026-98057 · lines 1746–1750 · +5 −0
Unscored
EPSS 0.2%2026-09-25
ring-buffer: Validate the persistent meta data subbuf array
CVE-2025-21777 · lines 1684–1739 · +11 −0 in 3 hunks
Medium · CVSS 5.5
EPSS 0.2%2025-02-27

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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 rb_meta_valid.

How many CVEs have patched rb_meta_valid?: 2 published CVEs changed rb_meta_valid in torvalds/linux, in 4 distinct patches totalling 16 changed lines, between 2025 and 2026.
What is the latest CVE that changed rb_meta_valid?: CVE-2026-98057 (ring-buffer: Add checking nr_subbufs to persistent ring buffer validation), published 2026-09-25, changed lines 1746 to 1750 of kernel/trace/ring_buffer.c.
How does rb_meta_valid compare to the rest of torvalds/linux?: torvalds/linux has 19,281 CVEs with a located fix in total; 2 of them changed rb_meta_valid.
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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