# CVE-2022-48740: linux: In the Linux kernel, the following vulnerability has been resolved:  selinux: fix double free of cond_list on error p...

CVE-2022-48740 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-48740, released June 20, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-48740
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0025
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 20, 2024

## 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]

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.16.10-1 | [DEBIAN-CVE-2022-48740](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48740.md) | Jun 20, 2024 |
| Linux | linux Debian 13.5 (trixie) | 5.16.10-1 | [DEBIAN-CVE-2022-48740](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48740.md) | Jun 20, 2024 |
| Linux | linux Debian 14 | 5.16.10-1 | [DEBIAN-CVE-2022-48740](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48740.md) | Jun 20, 2024 |

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