CVE-2026-53327 (GCVE-0-2026-53327)

Vulnerability from cvelistv5 – Published: 2026-07-01 13:32 – Updated: 2026-07-04 11:51
VLAI
Title
debugobjects: Do not fill_pool() if pi_blocked_on
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4bedcc28469a24fe481a8a31b3584e6070457ddb , < 8a680d54f1adf3e3aa815578684556716fda6f0c (git)
Affected: 4bedcc28469a24fe481a8a31b3584e6070457ddb , < a3383df76f0d7a597066df018409eb9e5e698064 (git)
Affected: 4bedcc28469a24fe481a8a31b3584e6070457ddb , < 3f6a3b24ab7b9d51f6f4778254bef0e5847beb55 (git)
Affected: 4bedcc28469a24fe481a8a31b3584e6070457ddb , < 3a408cae608d9c075dd3a9e5cfc03b3cb0726863 (git)
Affected: 4bedcc28469a24fe481a8a31b3584e6070457ddb , < 33bee10644f8fff3b1a0187ad5ad34513e5e8e72 (git)
Affected: 4bedcc28469a24fe481a8a31b3584e6070457ddb , < 5f41161059fd0f1bbf18c90f3180e38cc45a14eb (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 6.1.177 , ≤ 6.1.* (semver)
Unaffected: 6.6.144 , ≤ 6.6.* (semver)
Unaffected: 6.12.95 , ≤ 6.12.* (semver)
Unaffected: 6.18.37 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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}



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