Answer in brief
CVE-2023-52810 records a High severity (CVSS 7.8) vulnerability in fs/jfs: Add check for negative db_l2nbperpage. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), linux/linux_kernel (generic), linux/linux_kernel (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), linux/linux_kernel (generic), linux/linux_kernel (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cc61fcf7d1c99f148fe8ddfb5c6ed0bb75861f01 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8f2964df6bfce9d92d81ca552010b8677af8d9dc || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a81a56b4cbe3142cc99f6b98e8f9b3a631c768e1 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <524b4f203afcf87accfe387e846f33f916f0c907 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5f148b16972e5f4592629b244d5109b15135f53f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0cb567e727339a192f9fd0db00781d73a91d15a6 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <491085258185ffc4fb91555b0dba895fe7656a45 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1a7c53fdea1d189087544d9a606d249e93c4934b || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <525b861a008143048535011f3816d407940f4bfa | cc61fcf7d1c99f148fe8ddfb5c6ed0bb75861f01, 8f2964df6bfce9d92d81ca552010b8677af8d9dc, a81a56b4cbe3142cc99f6b98e8f9b3a631c768e1, 524b4f203afcf87accfe387e846f33f916f0c907, 5f148b16972e5f4592629b244d5109b15135f53f, 0cb567e727339a192f9fd0db00781d73a91d15a6, 491085258185ffc4fb91555b0dba895fe7656a45, 1a7c53fdea1d189087544d9a606d249e93c4934b, 525b861a008143048535011f3816d407940f4bfa |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
| linux/linux_kernelgeneric | >=1da177e4c3f4 <491085258185 | 491085258185 |
| linux/linux_kernelgeneric | >=1da177e4c3f4 <1a7c53fdea1d | 1a7c53fdea1d |
| linux/linux_kernelgeneric | >=1da177e4c3f4 <525b861a0081 | 525b861a0081 |
| linux/linux_kernelgeneric | >=1da177e4c3f4 <cc61fcf7d1c9 | cc61fcf7d1c9 |
| linux/linux_kernelgeneric | >=1da177e4c3f4 <8f2964df6bfc | 8f2964df6bfc |
| linux/linux_kernelgeneric | >=1da177e4c3f4 <a81a56b4cbe3 | a81a56b4cbe3 |
| linux/linux_kernelgeneric | >=1da177e4c3f4 <524b4f203afc | 524b4f203afc |
| linux/linux_kernelgeneric | >=1da177e4c3f4 <5f148b16972e | 5f148b16972e |
| linux/linux_kernelgeneric | >=1da177e4c3f4 <0cb567e72733 | 0cb567e72733 |
Published upstream
May 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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
Quoted source text, attributed separately from HOL analysis.