How many CVEs have patched ext4_remount?

2 published CVEs changed ext4_remount in torvalds/linux, in 7 distinct patches totalling 9 changed lines, between 2024 and 2025.

What is the latest CVE that changed ext4_remount?

CVE-2022-49348, published 2025-02-26, changed lines 6001 to 6002 of fs/ext4/super.c.

How does ext4_remount compare to the rest of torvalds/linux?

torvalds/linux has 19,281 CVEs with a located fix in total; 2 of them changed ext4_remount.

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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Patched Functions
Torvalds
Linux
Ext4_remount

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Patched Functions
Torvalds
Linux
Ext4_remount

ext4_remount in torvalds/linux: Patched by 2 CVEs

torvalds/linux

Function

ext4_remount

Name: ext4_remount in torvalds/linux: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

fs/ext4/super.c

Last patched February 26, 2025

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2024–2025

Years

By CVE publication date

Overview

ext4_remount in torvalds/linux was changed by 2 published CVE fixes between 2024 and 2025, in 7 distinct patches that added or removed 9 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 ext4_remount, newest first, with the lines each fix touched.

On this page

Overview
CVEs that patched it
Other functions in these files
Other hotspots in the repository
FAQ
References

CVE-2022-49348
CVE-2022-49348 · lines 6001–6002 · +2 −1
Medium · CVSS 5.5
EPSS 0.3%2025-02-26
ext4: fix possible UAF when remounting r/o a mmp-protected file system
CVE-2021-47342 · lines 5935–6084 · +5 −1 in 3 hunks
High · CVSS 7.8
EPSS 0.2%2024-05-21

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Other functions in these files

Functions in the same file that CVE fixes also changed.

1ext4_fill_superfs/ext4/super.c13 CVEs · 20 patches2009 to 2026
2__ext4_fill_superfs/ext4/super.c7 CVEs · 32 patches2024 to 2026
3parse_apply_sb_mount_optionsfs/ext4/super.c3 CVEs · 11 patches2025 to 2026
4ext4_alloc_inodefs/ext4/super.c2 CVEs · 8 patches2016 to 2025
5ext4_handle_errorfs/ext4/super.c2 CVEs · 5 patches2024
6ext4_put_superfs/ext4/super.c2 CVEs · 5 patches2016 to 2025
7ext4_check_descriptorsfs/ext4/super.c2 CVEs · 2 patches2018
8le16_to_cpufs/ext4/super.c2 CVEs · 1 patches2023

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 ext4_remount.

How many CVEs have patched ext4_remount?: 2 published CVEs changed ext4_remount in torvalds/linux, in 7 distinct patches totalling 9 changed lines, between 2024 and 2025.
What is the latest CVE that changed ext4_remount?: CVE-2022-49348, published 2025-02-26, changed lines 6001 to 6002 of fs/ext4/super.c.
How does ext4_remount compare to the rest of torvalds/linux?: torvalds/linux has 19,281 CVEs with a located fix in total; 2 of them changed ext4_remount.
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

fs/ext4/super.c on GitHub (opens in a new tab)
All patched functions in torvalds/linux
Patched functions directory

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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