In the Linux kernel, the following vulnerability has been resolved:
mmc: vub300: fix use-after-free on disconnect
The vub300 driver maintains an explicit reference count for the
controller and its driver data and the last reference can in theory be
dropped after the driver has been unbound.
This specifically means that the controller allocation must not be
device managed as that can lead to use-after-free.
Note that the lifetime is currently also incorrectly tied the parent USB
device rather than interface, which can lead to memory leaks if the
driver is unbound without its device being physically disconnected (e.g.
on probe deferral).
Fix both issues by reverting to non-managed allocation of the controller.
References
Configurations
Configuration 1 (hide)
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History
27 Apr 2026, 20:14
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:-:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* |
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| First Time |
Linux
Linux linux Kernel |
|
| References | () https://git.kernel.org/stable/c/8f4d20a710225ec7a565f6a0459862d3b1f32330 - Patch | |
| References | () https://git.kernel.org/stable/c/ea7468f61be033f4e18b95f2912010ed1d175d75 - Patch | |
| References | () https://git.kernel.org/stable/c/ef0448c569b37ceabdd038e9faa311e5179127b0 - Patch | |
| CWE | CWE-416 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
24 Apr 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-24 15:16
Updated : 2026-04-27 20:14
NVD link : CVE-2026-31650
Mitre link : CVE-2026-31650
CVE.ORG link : CVE-2026-31650
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-416
Use After Free