CVE-2026-53327
debugobjects: Do not fill_pool() if pi_blocked_on
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.
INFO
Published Date :
July 1, 2026, 1:32 p.m.
Last Modified :
July 1, 2026, 1:32 p.m.
Remotely Exploit :
No
Source :
Linux
Affected Products
The following products are affected by CVE-2026-53327
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Linux kernel to the latest version.
- Ensure RT kernels account for pi_blocked_on.
- Apply the provided patch to the kernel.
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CVE-2026-53327 vulnerability anywhere in the article.