CVE-2023-52679
of: Fix double free in of_parse_phandle_with_args_map
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: of: Fix double free in of_parse_phandle_with_args_map In of_parse_phandle_with_args_map() the inner loop that iterates through the map entries calls of_node_put(new) to free the reference acquired by the previous iteration of the inner loop. This assumes that the value of "new" is NULL on the first iteration of the inner loop. Make sure that this is true in all iterations of the outer loop by setting "new" to NULL after its value is assigned to "cur". Extend the unittest to detect the double free and add an additional test case that actually triggers this path.
Timeline
ID reserved
By Linux
- 2 months later
· 2 months later
Published
- 2 years later
· 2 years 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 · 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)
- 0.25% · top 84% of all CVEs (8 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – < 26b4d702c44f9e5cf3c5c001ae619a4a001889db
- affected bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – < a0a061151a6200c13149dbcdb6c065203c8425d2
- affected bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – < d5f490343c77e6708b6c4aa7dbbfbcbb9546adea
- affected bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – < 4541004084527ce9e95a818ebbc4e6b293ffca21
- affected bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – < b9d760dae5b10e73369b769073525acd7b3be2bd
- affected bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – < b64d09a4e8596f76d27f4b4a90a1cf6baf6a82f8
- affected bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – < cafa992134124e785609a406da4ff2b54052aff7
- affected bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa – < 4dde83569832f9377362e50f7748463340c5db6b
- affected 4.17
- unaffected < 4.17
- unaffected 4.19.306 – ≤ 4.19.*
- unaffected 5.4.268 – ≤ 5.4.*
- unaffected 5.10.209 – ≤ 5.10.*
- unaffected 5.15.148 – ≤ 5.15.*
- unaffected 6.1.75 – ≤ 6.1.*
- unaffected 6.6.14 – ≤ 6.6.*
- unaffected 6.7.2 – ≤ 6.7.*
- unaffected 6.8 – ≤ *
References (10)
- https://git.kernel.org/stable/c/26b4d702c44f9e5cf3c5c001ae619a4a001889db (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/a0a061151a6200c13149dbcdb6c065203c8425d2 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/d5f490343c77e6708b6c4aa7dbbfbcbb9546adea (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/4541004084527ce9e95a818ebbc4e6b293ffca21 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/b9d760dae5b10e73369b769073525acd7b3be2bd (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/b64d09a4e8596f76d27f4b4a90a1cf6baf6a82f8 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/cafa992134124e785609a406da4ff2b54052aff7 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/4dde83569832f9377362e50f7748463340c5db6b (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html (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://cveledger.app/cve/CVE-2023-52679)Record last updated .