CVE-2026-90275 in Linuxinfo

Zusammenfassung

von MITRE • 17.09.2026

In the Linux kernel, the following vulnerability has been resolved:

md/raid1: don't set array_frozen in raid1_takeover()

raid1_takeover() sets conf->array_frozen = 1 on the newly-allocated r1conf and nothing ever clears it, so every I/O to the array stalls permanently once _wait_barrier() sees it stuck at 1.

This used to be harmless: level_store() called mddev_resume() right after pers->run(), which called raid1_quiesce(mddev, 0) and cleared array_frozen back to 0 regardless of what raid1_takeover() set. Commit b39f35ebe86d ("md: don't quiesce in mddev_suspend()") removed that quiesce(mddev, 0) call, so the pre-set now sticks.

setup_conf() already zero-initializes the new r1conf via kzalloc, so just don't set array_frozen here.

Same class of bug as commit 892da88d1cd9 ("md/raid10: fix a 'conf->barrier' leakage in raid10_takeover()"), also triggered by b39f35ebe86d.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Zuständig

Linux

Reservieren

11.09.2026

Veröffentlichung

17.09.2026

Moderieren

akzeptiert

Eintrag

VDB-406776

CPE

bereit

EPSS

0.00000

KEV

nein

Aktivitäten

very low

Quellen

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