CVE-2025-38313
bus: fsl-mc: fix double-free on mc_dev
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In the Linux kernel, the following vulnerability has been resolved: bus: fsl-mc: fix double-free on mc_dev The blamed commit tried to simplify how the deallocations are done but,
in the process, introduced a double-free on the mc_dev variable. In case the MC device is a DPRC, a new mc_bus is allocated and the
mc_dev variable is just a reference to one of its fields. In this
circumstance, on the error path only the mc_bus should be freed. This commit introduces back the following checkpatch warning which is a
false-positive. WARNING: kfree(NULL) is safe and this check is probably not required
+ if (mc_bus)
+ kfree(mc_bus);
In the Linux kernel, the following vulnerability has been resolved: bus: fsl-mc: fix double-free on mc_dev The blamed commit tried to simplify how the deallocations are done but, in the process, introduced a double-free on the mc_dev variable. In case the MC device is a DPRC, a new mc_bus is allocated and the mc_dev variable is just a reference to one of its fields. In this circumstance, on the error path only the mc_bus should be freed. This commit introduces back the following checkpatch warning which is a false-positive. WARNING: kfree(NULL) is safe and this check is probably not required + if (mc_bus) + kfree(mc_bus);
This update provides the initial livepatch for this kernel update. This update does not contain any fixes and will be updated with livepatches later.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2025-04-16 CVE Reserved
- 2025-07-10 CVE Published
- 2025-07-28 CVE Updated
- 2025-08-11 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (9)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/a042fbed02904493ae6df26ec836045f5a7d3ce2 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.13 < 5.4.295 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.13 < 5.4.295" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.13 < 5.10.239 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.13 < 5.10.239" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.13 < 5.15.186 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.13 < 5.15.186" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.13 < 6.1.142 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.13 < 6.1.142" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.13 < 6.6.94 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.13 < 6.6.94" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.13 < 6.12.34 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.13 < 6.12.34" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.13 < 6.15.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.13 < 6.15.3" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.13 < 6.16 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.13 < 6.16" | en |
Affected
| ||||||