CVE-2026-53327
debugobjects: Do not fill_pool() if pi_blocked_on
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/3a408cae608d9c075dd3a9e5cfc03b3cb0726863
- https://git.kernel.org/stable/c/33bee10644f8fff3b1a0187ad5ad34513e5e8e72
- https://git.kernel.org/stable/c/5f41161059fd0f1bbf18c90f3180e38cc45a14eb
- https://git.kernel.org/stable/c/8a680d54f1adf3e3aa815578684556716fda6f0c
- https://git.kernel.org/stable/c/a3383df76f0d7a597066df018409eb9e5e698064
References (6)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Quick Info
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