VulnSocial

CVE-2026-31650Disclosure(linux / linux_kernel)

LOWCVSS 7.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch linux linux_kernel systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

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0.5/ 10 priority

Sources & remediation

Patch / fix
Weakness type (CWE)
CWE-416

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • linux_kernel

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • Peaked 1d ago at 2 mentions (2026-04-24); latest day: 1
  • 3 total mentions across 2 days

Affected systems

Vendors
linux
Products
linux_kernel

2 versions affected across 1 product

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-04-24: 2Mentions · 2026-04-25: 1Patch / Workaround · 2026-04-24: 1Technical Details · 2026-04-24: 204-2404-25
Signal classification2 categories
Disclosure
266.7%
Patch
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-04-242
Disclosure1Patch1
2026-04-251
Disclosure1
Full discourse3 posts
  • VulDB 🛡@vuldb
    Disclosure

    A new vulnerability with increased severity was disclosed for Linux Kernel (CVE-2026-31650) https://vuldb.com/vuln/359477

    Post summary

    A new Linux kernel vulnerability (CVE-2026-31650) has been disclosed with increased severity; additional details are available at the provided link.

    0000096
    2.1K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-31650 Use-After-Free Vulnerability in Linux Kernel MMC vub300 Driver on Disconnect https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-31650

    Post summary

    The snippet announces a use‑after‑free vulnerability within the Linux Kernel MMC vub300 driver on disconnect, providing the type and affected component but no PoC, exploit, or mitigation.

    0000043
    4.0K followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-31650 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 … https://www.cve.org/CVERecord?id=CVE-2026-31650

    Post summary

    CVE-2026-31650, a use‑after‑free in the Linux kernel’s vub300 MMC driver, has been addressed with a patch; there is no PoC, exploit, or evidence of active exploitation.

    0000070
    57.2K followersView on X
CPE platform detail9 entries

9 of 9 entries

PartVendorProductVersionTarget SWTarget HW
OSlinuxlinux_kernel---
OSlinuxlinux_kernel6.17--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--

Explore more

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