CVE-2026-31399
nvdimm/bus: Fix potential use after free in asynchronous initialization
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: nvdimm/bus: Fix potential use after free in asynchronous initialization Dingisoul with KASAN reports a use after free if device_add() fails in
nd_async_device_register(). Commit b6eae0f61db2 ("libnvdimm: Hold reference on parent while
scheduling async init") correctly added a reference on the parent device
to be held until asynchronous initialization was complete. However, if
device_add() results in an allocation failure the ref count of the
device drops to 0 prior to the parent pointer being accessed. Thus
resulting in use after free. The bug bot AI correctly identified the fix. Save a reference to the
parent pointer to be used to drop the parent reference regardless of the
outcome of device_add().
*Credits:
N/A
CVSS Scores
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Attack Complexity
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Scope
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* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2026-03-09 CVE Reserved
- 2026-04-03 CVE Published
- 2026-04-09 EPSS Updated
- 2026-04-13 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (12)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/b6eae0f61db27748606cc00dafcfd1e2c032f0a5 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/8954771abdea5c34280870e35592c7226a816d95 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/3e63a7f25cc85d3d3e174b9b0e3489ebb7eaf4ab | Vuln. Introduced | |
| https://git.kernel.org/stable/c/1490de2bb0836fc0631c04d0559fdf81545b672f | Vuln. Introduced | |
| https://git.kernel.org/stable/c/e31a8418c8df7e6771414f99ed3d95ba8aca4e05 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/4f1a55a4f990016406147cf3e0c9487bf83e50f0 | 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" | >= 4.20 < 6.1.167 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 6.1.167" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.20 < 6.6.130 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 6.6.130" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.20 < 6.12.78 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 6.12.78" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.20 < 6.18.20 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 6.18.20" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.20 < 6.19.10 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 6.19.10" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.20 < 7.0 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 7.0" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 4.4.164 Search vendor "Linux" for product "Linux Kernel" and version "4.4.164" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 4.9.137 Search vendor "Linux" for product "Linux Kernel" and version "4.9.137" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 4.14.81 Search vendor "Linux" for product "Linux Kernel" and version "4.14.81" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 4.18.19 Search vendor "Linux" for product "Linux Kernel" and version "4.18.19" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 4.19.2 Search vendor "Linux" for product "Linux Kernel" and version "4.19.2" | en |
Affected
| ||||||