Riskcovery

CVE-2026-74375

md/raid1,raid10: fix deadlock in read error recovery path

State
Published
Severity
Not scored
Published
Aug 15, 2026
Updated
Oct 21, 2026
Reserved
Aug 15, 2026

Read the record on cve.org

Description

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

md/raid1,raid10: fix deadlock in read error recovery path

raid1d and raid10d may resubmit a split md cloned bio while handling a read error. In this case, resubmitting the bio can lead to a deadlock if the array is suspended before md_handle_request() acquires an active_io reference via percpu_ref_tryget_live().

Since the cloned bio already holds an active_io reference, trying to acquire another reference via percpu_ref_tryget_live() can lead to a deadlock while the array is suspended.

Fix this by using percpu_ref_get() for md cloned bios.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • bb2a9acefaf9ce5bbc1e70f407e34599233d0243 to before 923a6f3172a362d6b2ff12386e376e0e47188f78Affected
  • bb2a9acefaf9ce5bbc1e70f407e34599233d0243 to before 0889242775340e2c5b69b1590bd71335dd4fdedaAffected
  • bb2a9acefaf9ce5bbc1e70f407e34599233d0243 to before ea2d1d2ebf60b70b602a92261a567d5fc4575eabAffected
  • bb2a9acefaf9ce5bbc1e70f407e34599233d0243 to before 38777f014c37972868f1733a651c85288bb8a757Affected
  • bb2a9acefaf9ce5bbc1e70f407e34599233d0243 to before 7b15c24f805339a585cfe7d72f446b7e88b9bcc0Affected
LinuxLinux
  • 6.6Affected
  • before 6.6Not affected
  • 6.6.160 through 6.6.*Not affected
  • 6.12.114 through 6.12.*Not affected
  • 6.18.57 through 6.18.*Not affected
  • 7.1.5 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

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