Answer in brief
CVE-2023-52804 records a High severity (CVSS 7.8) vulnerability in fs/jfs: Add validity check for db_maxag and db_agpref. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2023-52804 records a High severity (CVSS 7.8) vulnerability in fs/jfs: Add validity check for db_maxag and db_agpref. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). 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). 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 <a0649e2dd4a3595b5595a29d0064d047c2fae2fb || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ce15b0f1a431168f07b1cc6c9f71206a2db5c809 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <32bd8f1cbcf8b663e29dd1f908ba3a129541a11b || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c6c8863fb3f57700ab583d875adda04caaf2278a || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1f74d336990f37703a8eee77153463d65b67f70e || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5013f8269887642cca784adc8db9b5f0b771533f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <dca403bb035a565bb98ecc1dda5d30f676feda40 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2323de34a3ae61a9f9b544c18583f71cea86721f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <64933ab7b04881c6c18b21ff206c12278341c72e | a0649e2dd4a3595b5595a29d0064d047c2fae2fb, ce15b0f1a431168f07b1cc6c9f71206a2db5c809, 32bd8f1cbcf8b663e29dd1f908ba3a129541a11b, c6c8863fb3f57700ab583d875adda04caaf2278a, 1f74d336990f37703a8eee77153463d65b67f70e, 5013f8269887642cca784adc8db9b5f0b771533f, dca403bb035a565bb98ecc1dda5d30f676feda40, 2323de34a3ae61a9f9b544c18583f71cea86721f, 64933ab7b04881c6c18b21ff206c12278341c72e |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
May 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 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 validity check for db_maxag and db_agpref Both db_maxag and db_agpref are used as the index of the db_agfree array, but there is currently no validity check for db_maxag and db_agpref, which can lead to errors. The following is related bug reported by Syzbot: UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:639:20 index 7936 is out of range for type 'atomic_t[128]' Add checking that the values of db_maxag and db_agpref are valid indexes for the db_agfree array.
Quoted source text, attributed separately from HOL analysis.
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). 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 <a0649e2dd4a3595b5595a29d0064d047c2fae2fb || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ce15b0f1a431168f07b1cc6c9f71206a2db5c809 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <32bd8f1cbcf8b663e29dd1f908ba3a129541a11b || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c6c8863fb3f57700ab583d875adda04caaf2278a || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1f74d336990f37703a8eee77153463d65b67f70e || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5013f8269887642cca784adc8db9b5f0b771533f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <dca403bb035a565bb98ecc1dda5d30f676feda40 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2323de34a3ae61a9f9b544c18583f71cea86721f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <64933ab7b04881c6c18b21ff206c12278341c72e | a0649e2dd4a3595b5595a29d0064d047c2fae2fb, ce15b0f1a431168f07b1cc6c9f71206a2db5c809, 32bd8f1cbcf8b663e29dd1f908ba3a129541a11b, c6c8863fb3f57700ab583d875adda04caaf2278a, 1f74d336990f37703a8eee77153463d65b67f70e, 5013f8269887642cca784adc8db9b5f0b771533f, dca403bb035a565bb98ecc1dda5d30f676feda40, 2323de34a3ae61a9f9b544c18583f71cea86721f, 64933ab7b04881c6c18b21ff206c12278341c72e |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
May 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 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 validity check for db_maxag and db_agpref Both db_maxag and db_agpref are used as the index of the db_agfree array, but there is currently no validity check for db_maxag and db_agpref, which can lead to errors. The following is related bug reported by Syzbot: UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:639:20 index 7936 is out of range for type 'atomic_t[128]' Add checking that the values of db_maxag and db_agpref are valid indexes for the db_agfree array.
Quoted source text, attributed separately from HOL analysis.