CVE-2026-23221
bus: fsl-mc: fix use-after-free in driver_override_show()
Severity Score
"-"
*CVSS v-
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
In the Linux kernel, the following vulnerability has been resolved: bus: fsl-mc: fix use-after-free in driver_override_show() The driver_override_show() function reads the driver_override string
without holding the device_lock. However, driver_override_store() uses
driver_set_override(), which modifies and frees the string while holding
the device_lock. This can result in a concurrent use-after-free if the string is freed
by the store function while being read by the show function. Fix this by holding the device_lock around the read operation.
*Credits:
N/A
CVSS Scores
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* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2026-01-13 CVE Reserved
- 2026-02-18 CVE Published
- 2026-02-23 CVE Updated
- 2026-03-22 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d | 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" | >= 5.10 < 5.15.201 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 5.15.201" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.10 < 6.1.164 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 6.1.164" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.10 < 6.6.127 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 6.6.127" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.10 < 6.12.74 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 6.12.74" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.10 < 6.18.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 6.18.11" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.10 < 6.19.1 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 6.19.1" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.10 < 7.0-rc1 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 7.0-rc1" | en |
Affected
| ||||||