CVE-2025-38206
Published: July 7, 2025Last modified: July 7, 2025
Description
In the Linux kernel, the following vulnerability has been resolved: exfat: fix double free in delayed_free The double free could happen in the following path. exfat_create_upcase_table() exfat_create_upcase_table() : return error exfat_free_upcase_table() : free ->vol_utbl exfat_load_default_upcase_table : return error exfat_kill_sb() delayed_free() exfat_free_upcase_table() <--------- double free This patch set ->vol_util as NULL after freeing it.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Vulnerable (6.1.141-r0) |
| 25 LTS | linux-lts | Vulnerable (6.12.41-r0) | |
| Stream | linux-lts | Vulnerable (6.6.94-r0) |
References
- https://git.kernel.org/stable/c/13d8de1b6568dcc31a95534ced16bc0c9a67bc15
- https://git.kernel.org/stable/c/1f3d9724e16d62c7d42c67d6613b8512f2887c22
- https://git.kernel.org/stable/c/66e84439ec2af776ce749e8540f8fdd257774152
- https://git.kernel.org/stable/c/d3cef0e7a5c1aa6217c51faa9ce8ecac35d6e1fd
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html