Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add check for negative db_l2nbperpage l2nbperpage is log2(number of blks per page), and the minimum legal value should be 0, not negative. In the case of l2nbperpage being negative, an error will occur when subsequently used as shift exponent. Syzbot reported this bug: UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:799:12 shift exponent -16777216 is negative
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.14.331 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0cb567e727339a192f9fd0db00781d73a91d15a6Patch
- https://git.kernel.org/stable/c/1a7c53fdea1d189087544d9a606d249e93c4934bPatch
- https://git.kernel.org/stable/c/491085258185ffc4fb91555b0dba895fe7656a45Patch
- https://git.kernel.org/stable/c/524b4f203afcf87accfe387e846f33f916f0c907Patch
- https://git.kernel.org/stable/c/525b861a008143048535011f3816d407940f4bfaPatch
- https://git.kernel.org/stable/c/5f148b16972e5f4592629b244d5109b15135f53fPatch
- https://git.kernel.org/stable/c/8f2964df6bfce9d92d81ca552010b8677af8d9dcPatch
- https://git.kernel.org/stable/c/a81a56b4cbe3142cc99f6b98e8f9b3a631c768e1Patch
- https://git.kernel.org/stable/c/cc61fcf7d1c99f148fe8ddfb5c6ed0bb75861f01Patch
- https://git.kernel.org/stable/c/0cb567e727339a192f9fd0db00781d73a91d15a6Patch
- https://git.kernel.org/stable/c/1a7c53fdea1d189087544d9a606d249e93c4934bPatch
- https://git.kernel.org/stable/c/491085258185ffc4fb91555b0dba895fe7656a45Patch
- https://git.kernel.org/stable/c/524b4f203afcf87accfe387e846f33f916f0c907Patch
- https://git.kernel.org/stable/c/525b861a008143048535011f3816d407940f4bfaPatch
- https://git.kernel.org/stable/c/5f148b16972e5f4592629b244d5109b15135f53fPatch
FAQ
What is CVE-2023-52810?
CVE-2023-52810 is a vulnerability with a CVSS score of 8.4 (HIGH). In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add check for negative db_l2nbperpage l2nbperpage is log2(number of blks per page), and the minimum legal value should be ...
How severe is CVE-2023-52810?
CVE-2023-52810 has been rated HIGH with a CVSS base score of 8.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-52810?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.