In the Linux kernel, the following vulnerability has been resolved:
nilfs2: do not write dirty data after degenerating to read-only
According to syzbot's report, mark_buffer_dirty() called from
nilfs_segctor_do_construct() outputs a warning with some patterns after
nilfs2 detects metadata corruption and degrades to read-only mode.
After such read-only degeneration, page cache data may be cleared through
nilfs_clear_dirty_page() which may also clear the uptodate flag for their
buffer heads. However, even after the degeneration, log writes are still
performed by unmount processing etc., which causes mark_buffer_dirty() to
be called for buffer heads without the "uptodate" flag and causes the
warning.
Since any writes should not be done to a read-only file system in the
first place, this fixes the warning in mark_buffer_dirty() by letting
nilfs_segctor_do_construct() abort early if in read-only mode.
This also changes the retry check of nilfs_segctor_write_out() to avoid
unnecessary log write retries if it detects -EROFS that
nilfs_segctor_do_construct() returned.
References
Configurations
Configuration 1 (hide)
|
History
11 Dec 2025, 15:47
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux
Linux linux Kernel |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | NVD-CWE-noinfo | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| References | () https://git.kernel.org/stable/c/13f73ef77baa4764dc1ca4fcbae9cade05b83866 - Patch | |
| References | () https://git.kernel.org/stable/c/28a65b49eb53e172d23567005465019658bfdb4d - Patch | |
| References | () https://git.kernel.org/stable/c/4005cec6847c06ee191583270b7cdd7e696543cc - Patch | |
| References | () https://git.kernel.org/stable/c/4569a292a84e340e97d178898ad1cfe1a3080a61 - Patch | |
| References | () https://git.kernel.org/stable/c/55f7810632f993cff622a0ddbc7c865892294b61 - Patch | |
| References | () https://git.kernel.org/stable/c/7c3e662048053802f6b0db3a78e97f4e1f7edc4f - Patch | |
| References | () https://git.kernel.org/stable/c/a73201c607d8e506358d60aafddda4246bdd9350 - Patch | |
| References | () https://git.kernel.org/stable/c/bd89073fc7a5d03b1d06b372addbe405e5a925f4 - Patch | |
| References | () https://git.kernel.org/stable/c/e9c5412c5972124776c1b873533eb39e287a4dfa - Patch |
17 Sep 2025, 15:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-09-17 15:15
Updated : 2025-12-11 15:47
NVD link : CVE-2023-53337
Mitre link : CVE-2023-53337
CVE.ORG link : CVE-2023-53337
JSON object : View
Products Affected
linux
- linux_kernel
CWE