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CVE-2026-53327General(linux / linux_kernel)

LOWCVSS 5.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

In the Linux kernel, the following vulnerability has been resolved: debugobjects: Do not fill_pool() if pi_blocked_on On RT enabled kernels, fill_pool() ends up calling rtlock_lock(), which asserts if current::pi_blocked_on is set, because a task can obviously only block on one lock as otherwise the priority inheritenace chain gets corrupted. Prevent this by expanding the conditional to take current::pi_blocked_on into account.

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0.0/ 10 priority

Sources & remediation

Patch / fix

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

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • General: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
linux
Products
linux_kernel

1 version affected across 1 product

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-07-09: 1Technical Details · 2026-07-09: 107-09
Signal classification1 categories
General
1100.0%
Referenced assets1 URL
Full discourse1 post
  • Windows Forum@windowsforum
    General

    🪟 Microsoft adding a Linux kernel RT debugobjects CVE to its guide screams one thing: your Windows “attack surface” is now cross-platform plumbing. WSL/Hyper-V means Linux bugs can still ruin your day. https://windowsforum.com/threads/cve-2026-53327-linux-kernel-rt-bug-hits-microsoft-security-guide.436216/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #PatchManagement #LinuxKernelSecurity #Cve202653327 https://t.co/teGnjnjeMU

    Post summary

    The tweet notes that Microsoft’s security guide now references the Linux kernel RT debugobjects CVE‑2026‑53327, warning that WSL/Hyper‑V may expose Windows systems to Linux kernel bugs, but it provides no PoC, exploit, or patch details.

    0000041
    1.2K followersView on X
CPE platform detail5 entries

5 of 5 entries

PartVendorProductVersionTarget SWTarget HW
OSlinuxlinux_kernel---
OSlinuxlinux_kernel7.1--
OSlinuxlinux_kernel7.1--
OSlinuxlinux_kernel7.1--
OSlinuxlinux_kernel7.1--

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