- 7.8HighCVSS base score
- 0.18%Exploitation in 30 daysEPSS · top 93% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: hfsplus: validate thread record before delete key rebuild hfsplus_delete_cat() is called with str == NULL when the last open reference to an unlinked HFS+ hardlink backing inode is closed. In that case, the function finds the catalog thread by CNID and rebuilds the catalog key from thread.nodeName. That reconstruction path reads thread.nodeName.length directly from the catalog B-tree into fd.search_key and then copies length * 2 bytes into fd.search_key->cat.name.unicode. It does not first check that the found record is a thread record or that its size matches the thread name. A corrupted image can therefore provide an oversized thread name length and make hfs_bnode_read() write past the catalog search-key allocation. Read the CNID record through hfsplus_brec_read_cat(), which bounds the record read to sizeof(hfsplus_cat_entry) and verifies that a thread record's size exactly matches nodeName.length. Together, these checks ensure an accepted thread name fits HFSPLUS_MAX_STRLEN. Reject non-thread records before building the delete key from the validated thread name. Share the thread-record-type helper between hfsplus_find_cat() and hfsplus_delete_cat().
Timeline
ID reserved
By Linux
Published
- 32 days later
· 32 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
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 |
| NVDNVD · Received | 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)
- 0.18% · top 93% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 33cda0036bc683fc888c20b04a5fc030e3e8413b
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < b9729c51a8b67f8b20b8a8cf395da4be63a0c15b
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < af48abc1b00d865c3f4c4d76b901c44115cb7162
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < e20f3b749ad241df77ec1c3e13a9c22209aa1eb3
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 7898beee166c1145c0bca364d687b8437435bf1a
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < e31985c67ba00a59d9b1340af473c1dbe6c87856
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 473ea7aa35615829f0de7a71e8691d69dc24e328
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < e2ea5cac61acfc11dad22f1d2d4bc71d56c52a20
- affected 2.6.12
- unaffected < 2.6.12
- unaffected 5.10.270 – ≤ 5.10.*
- unaffected 5.15.221 – ≤ 5.15.*
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/33cda0036bc683fc888c20b04a5fc030e3e8413b (opens in a new tab)
- https://git.kernel.org/stable/c/b9729c51a8b67f8b20b8a8cf395da4be63a0c15b (opens in a new tab)
- https://git.kernel.org/stable/c/af48abc1b00d865c3f4c4d76b901c44115cb7162 (opens in a new tab)
- https://git.kernel.org/stable/c/e20f3b749ad241df77ec1c3e13a9c22209aa1eb3 (opens in a new tab)
- https://git.kernel.org/stable/c/7898beee166c1145c0bca364d687b8437435bf1a (opens in a new tab)
- https://git.kernel.org/stable/c/e31985c67ba00a59d9b1340af473c1dbe6c87856 (opens in a new tab)
- https://git.kernel.org/stable/c/473ea7aa35615829f0de7a71e8691d69dc24e328 (opens in a new tab)
- https://git.kernel.org/stable/c/e2ea5cac61acfc11dad22f1d2d4bc71d56c52a20 (opens in a new tab)
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)
- EUVD EUVD-2026-82203 (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://cveledger.app/cve/CVE-2026-93095)Record last updated .