Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected bb2a9acefaf9ce5bbc1e70f407e34599233d0243 before 923a6f3172a362d6b2ff12386e376e0e47188f78; affected bb2a9acefaf9ce5bbc1e70f407e34599233d0243 before 0889242775340e2c5b69b1590bd71335dd4fdeda; affected bb2a9acefaf9ce5bbc1e70f407e34599233d0243 before ea2d1d2ebf60b70b602a92261a567d5fc4575eab; affected bb2a9acefaf9ce5bbc1e70f407e34599233d0243 before 38777f014c37972868f1733a651c85288bb8a757; affected bb2a9acefaf9ce5bbc1e70f407e34599233d0243 before 7b15c24f805339a585cfe7d72f446b7e88b9bcc0 |
| Linux / Linux | affected 6.6; unaffected 0 before 6.6; unaffected 6.6.160 through 6.6.*; unaffected 6.12.114 through 6.12.*; unaffected 6.18.57 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/923a6f3172a362d6b2ff12386e376e0e47188f78
- https://git.kernel.org/stable/c/0889242775340e2c5b69b1590bd71335dd4fdeda
- https://git.kernel.org/stable/c/ea2d1d2ebf60b70b602a92261a567d5fc4575eab
- https://git.kernel.org/stable/c/38777f014c37972868f1733a651c85288bb8a757
- https://git.kernel.org/stable/c/7b15c24f805339a585cfe7d72f446b7e88b9bcc0