7.8

CVE-2025-38206

exfat: fix double free in delayed_free

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.7 < 5.10.239
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.186
Linux ≫ Linux Kernel Version >= 5.16 < 6.15.4
Debian ≫ Debian Linux Version 11.0
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.055
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
416baaa9-dc9f-4396-8d5f-8c081fb06d67 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-415 Double Free

The product calls free() twice on the same memory address.

https://git.kernel.org/stable/c/13d8de1b6568dcc31a95534ced16bc0c9a67bc15
Patch
https://git.kernel.org/stable/c/66e84439ec2af776ce749e8540f8fdd257774152
Patch
https://git.kernel.org/stable/c/d3cef0e7a5c1aa6217c51faa9ce8ecac35d6e1fd
Patch
https://git.kernel.org/stable/c/1f3d9724e16d62c7d42c67d6613b8512f2887c22
Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
Third Party Advisory
Mailing List
https://git.kernel.org/stable/c/29abaf93357f4a7d083cf399d4306999e20db31d
https://git.kernel.org/stable/c/ac65f76db9b2ff3fbc9e198c0e9aaf81b111b7d0
https://git.kernel.org/stable/c/ea27703eb0efbadcd45b9949526160ed90536a72