of: Fix double free in of_parse_phandle_with_args_map (Linux Linux)

CVE-2023-52679
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.25 % · percentile 16 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

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.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa < 26b4d702c44f9e5cf3c5c001ae619a4a001889db ; affected bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa < a0a061151a6200c13149dbcdb6c065203c8425d2 ; affected bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa < d5f490343c77e6708b6c4aa7dbbfbcbb9546adea ; affected bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa < 4541004084527ce9e95a818ebbc4e6b293ffca21 ; affected bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa < b9d760dae5b10e73369b769073525acd7b3be2bd ; affected bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa < b64d09a4e8596f76d27f4b4a90a1cf6baf6a82f8
Linux · Linuxaffected 4.17 ; unaffected 0 < 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.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD