CVE-2024-56596: jfs: fix array-index-out-of-bounds in jfs_readdir
Vulnerability summary
CVE-2024-56596 is a high (CVSS 7.8) Improper Validation of Array Index vulnerability in linux. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 17.6% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 60 · Related 57Timeline
- 27-12-2024PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: jfs: fix array-index-out-of-bounds in jfs_readdir The stbl might contain some invalid values. Added a check to return error code in that case.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.26%
Chance of exploitation in the next 30 days
Percentile
18%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.26% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu135 products
- linux< 3.13.0-209.260 | < 4.4.0-269.303 | < 4.15.0-238.250 | < 5.4.0-211.231 | < 5.15.0-135.146 | < 6.8.0-58.60
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 4.4.0-1144.150 | < 4.4.0-1182.197 | < 4.15.0-1181.194 | < 5.4.0-1142.152 | < 5.15.0-1080.87 | < 6.8.0-1027.29
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < b62f41aeec9d250144c53875b507c1d45ae8c8fc | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 97e693593162eef6851d232f0c8148169ed46a5c | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9efe72eefd4c4a7ce63b3e4d667d766d2b360cb4 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < ff9fc48fab0e1ea0d423c23c99b91bba178f0b05 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < e7d376f94f72b020f84e77278b150ec1cc27502c | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8ff7579554571d92e3deab168f5a7d7b146ed368 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 839f102efb168f02dfdd46717b7c6dddb26b015e | 2.6.12
- linux_kernel< 5.4.287 | ≥ 5.5, < 5.10.231 | ≥ 5.11, < 5.15.174 | ≥ 5.16, < 6.1.120 | ≥ 6.2, < 6.6.66 | ≥ 6.7, < 6.12.5
Debian1 product
- linux< 6.1.123-1 | < 6.12.5-1
3 vendors · 138 products