CVE-2026-46051
published 2026-05-27CVE-2026-46051: In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix soft lockup in retry_aligned_read() When retry_aligned_read() encounters an…
medium5.5
In the Linux kernel, the following vulnerability has been resolved:
md/raid5: fix soft lockup in retry_aligned_read()
When retry_aligned_read() encounters an overlapped stripe, it releases
the stripe via raid5_release_stripe() which puts it on the lockless
released_stripes llist. In the next raid5d loop iteration,
release_stripe_list() drains the stripe onto handle_list (since
STRIPE_HANDLE is set by the original IO), but retry_aligned_read()
runs before handle_active_stripes() and removes the stripe from
handle_list via find_get_stripe() -> list_del_init(). This prevents
handle_stripe() from ever processing the stripe to resolve the
overlap, causing an infinite loop and soft lockup.
Fix this by using __release_stripe() with temp_inactive_list instead
of raid5_release_stripe() in the failure path, so the stripe does not
go through the released_stripes llist. This allows raid5d to break out
of its loop, and the overlap will be resolved when the stripe is
eventually processed by handle_stripe().
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| linux | linux | — | — |
| linux | linux | >= 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6 < 66df9f30673db66ac35145820a8e24906069ae57 | 66df9f30673db66ac35145820a8e24906069ae57 |
| linux | linux | >= 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6 < 4166d5234fe8b6c3c7f796a6c198605356c5b355 | 4166d5234fe8b6c3c7f796a6c198605356c5b355 |
| linux | linux | >= 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6 < a9055300e07d9d6800264d3c2560e1d0144689ca | a9055300e07d9d6800264d3c2560e1d0144689ca |
| linux | linux | >= 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6 < 09880592f5a9dc73377d6eb5ac123537b5f8df49 | 09880592f5a9dc73377d6eb5ac123537b5f8df49 |
| linux | linux | >= 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6 < 80fc6ca2cbde018d52e13f305edcd643911bd94b | 80fc6ca2cbde018d52e13f305edcd643911bd94b |
| linux | linux | >= 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6 < 1985cb3247e87ff6b8ca4bc5f9626f4f51024507 | 1985cb3247e87ff6b8ca4bc5f9626f4f51024507 |
| linux | linux | >= 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6 < 883cc33b7af1c448663287f069ef9dfea001e90f | 883cc33b7af1c448663287f069ef9dfea001e90f |
| linux | linux | >= 773ca82fa1ee58dd1bf88b6a5ca385ec83a2cac6 < 7f9f7c697474268d9ef9479df3ddfe7cdcfbbffc | 7f9f7c697474268d9ef9479df3ddfe7cdcfbbffc |
| linux | linux_kernel | — | — |