CVE-2023-53766
Published Dec 8, 2025
Modified Apr 15, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Check for read-only mounted filesystem in txBegin This patch adds a check for read-only mounted filesystem in txBegin before starting a transaction potentially saving from NULL pointer deref.
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References
Other References
https://git.kernel.org/stable/c/2a8807f9f511c64de0c7cc9900a1683e3d72a3e5
https://git.kernel.org/stable/c/2febd5f81e4bfba61d9f374dcca628aff374cc56
https://git.kernel.org/stable/c/5c094ca994824e038b6a97835ded4e5d1d808504
https://git.kernel.org/stable/c/95e2b352c03b0a86c5717ba1d24ea20969abcacc
https://git.kernel.org/stable/c/97c1f26e4d4af55e8584e4646dd5c5fa7baf62c7
https://git.kernel.org/stable/c/a88efca805bea93cea9187dfd00835aa7093bf1b
https://git.kernel.org/stable/c/aa7cdf487ab3fa47284daaccc3d7d5de01c6a84c
https://git.kernel.org/stable/c/b0ed8ed0428ee96092da6fefa5cfacbe4abed701
Frequently Asked Questions
What is CVE-2023-53766? +
In the Linux kernel, the following vulnerability has been resolved:
FS: JFS: Check for read-only mounted filesystem in txBegin
This patch adds a check for read-only mounted filesystem
in txBegin before starting a transaction potentially saving
from NULL pointer deref.
How do I check if I'm vulnerable to CVE-2023-53766? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.