linux: In the Linux kernel, the following vulnerability has been resolved: debugobjects: Do not fill_pool() if pi_blocked_o...
CVE-2026-53327 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-53327, released July 2, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 6.1.177-1 | DEBIAN-CVE-2026-53327 | Jul 2, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.95-1 | DEBIAN-CVE-2026-53327 | Jul 2, 2026 |
| linux · Debian 14 | 7.0.13-1 | DEBIAN-CVE-2026-53327 | Jul 2, 2026 |
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