VulnSocial

CVE-2026-53400Patch(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: i2c: core: fix adapter registration race Adapters can be looked up based on their id using i2c_get_adapter() which takes a reference to the embedded struct device. Make sure that the adapter (including its struct device) has been initialised before adding it to the IDR to avoid accessing uninitialised data which could, for example, lead to NULL-pointer dereferences or use-after-free. Note that the i2c-dev chardev, which is registered from a bus notifier, currently uses i2c_get_adapter() so the adapter needs to be added to the IDR before registration.

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0.5/ 10 priority

Sources & remediation

Patch / fix
Other references
Weakness type (CWE)
CWE-362

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

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
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
linux
Products
linux_kernel

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-07-20: 1Patch / Workaround · 2026-07-20: 1Technical Details · 2026-07-20: 107-20
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
Full discourse1 post
  • Windows Forum@windowsforum
    Patch

    🪟 WSL 2 admins, your Linux kernel has a race condition that can trigger crashes or use-after-free bugs. Update now—because “it’s Linux inside Windows” still means patch day is your problem. https://windowsforum.com/threads/cve-2026-53400-update-wsl-2-kernels-to-fix-linux-i2c-race.439568/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #LinuxKernelSecurity #Cve202653400 #Wsl2Security #I2CVulnerabil… https://t.co/XYU8J7c97L

    Post summary

    The thread warns WSL 2 administrators about a race condition (CVE‑2026‑53400) that can cause crashes or use‑after‑free bugs, urging them to update kernels to mitigate the issue.

    0000024
    1.3K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
OSlinuxlinux_kernel---

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