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CVE-2023-52810
fs/jfs: Add check for negative db_l2nbperpage
High7.8EPSS 0.26%
- Published
- Updated
- Reserved
- Assigned by
- Linux
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
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CISA-ADPADP (enrichment) | 3.1 | High8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.26% · top 82% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < cc61fcf7d1c99f148fe8ddfb5c6ed0bb75861f01
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 8f2964df6bfce9d92d81ca552010b8677af8d9dc
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < a81a56b4cbe3142cc99f6b98e8f9b3a631c768e1
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 524b4f203afcf87accfe387e846f33f916f0c907
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 5f148b16972e5f4592629b244d5109b15135f53f
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 0cb567e727339a192f9fd0db00781d73a91d15a6
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 491085258185ffc4fb91555b0dba895fe7656a45
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 1a7c53fdea1d189087544d9a606d249e93c4934b
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 525b861a008143048535011f3816d407940f4bfa
- affected 2.6.12
- unaffected < 2.6.12
- unaffected 4.14.331 – ≤ 4.14.*
- unaffected 4.19.300 – ≤ 4.19.*
- unaffected 5.4.262 – ≤ 5.4.*
- unaffected 5.10.202 – ≤ 5.10.*
- unaffected 5.15.140 – ≤ 5.15.*
- unaffected 6.1.64 – ≤ 6.1.*
- unaffected 6.5.13 – ≤ 6.5.*
- unaffected 6.6.3 – ≤ 6.6.*
- unaffected 6.7 – ≤ *
References (9)
- https://git.kernel.org/stable/c/cc61fcf7d1c99f148fe8ddfb5c6ed0bb75861f01 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/8f2964df6bfce9d92d81ca552010b8677af8d9dc (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/a81a56b4cbe3142cc99f6b98e8f9b3a631c768e1 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/524b4f203afcf87accfe387e846f33f916f0c907 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/5f148b16972e5f4592629b244d5109b15135f53f (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/0cb567e727339a192f9fd0db00781d73a91d15a6 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/491085258185ffc4fb91555b0dba895fe7656a45 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/1a7c53fdea1d189087544d9a606d249e93c4934b (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/525b861a008143048535011f3816d407940f4bfa (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-52810)Record last updated .