CVE-2022-48740
selinux: fix double free of cond_list on error paths
HIGH 7.8
At a glance
- Source
- NVD
- EPSS
- EPSS 0.24 % · percentile 16 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: selinux: fix double free of cond_list on error paths On error path from cond_read_list() and duplicate_policydb_cond_list() the cond_list_destroy() gets called a second time in caller functions, resulting in NULL pointer deref. Fix this by resetting the cond_list_len to 0 in cond_list_destroy(), making subsequent calls a noop. Also consistently reset the cond_list pointer to NULL after freeing. [PM: fix line lengths in the description]
Weaknesses (CWE)
- CWE-415 — Double Free
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2022-53619
- GCVE · GCVE-0-2022-48740
CERT-FR advisories
- CERTFR-2024-AVI-0693 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0610 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0578 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.7 < 5.10.99cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.22cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.16.8cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 60abd3181db29ea81742106cc0ac2e27fd05b418 < f446089a268c8fc6908488e991d28a9b936293db ; affected 60abd3181db29ea81742106cc0ac2e27fd05b418 < 70caa32e6d81f45f0702070c0e4dfe945e92fbd7 ; affected 60abd3181db29ea81742106cc0ac2e27fd05b418 < 7ed9cbf7ac0d4ed86b356e1b944304ae9ee450d4 ; affected 60abd3181db29ea81742106cc0ac2e27fd05b418 < 186edf7e368c40d06cf727a1ad14698ea67b74ad |
| Linux · Linux | affected 5.7 ; unaffected 0 < 5.7 ; unaffected 5.10.99 ≤ 5.10.* ; unaffected 5.15.22 ≤ 5.15.* ; unaffected 5.16.8 ≤ 5.16.* ; unaffected 5.17 ≤ * |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |