CVE-2026-46051CWE-667

CVE-2026-46051

Medium · published May 27, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
2.2
In the wild
Unconfirmed
What it is

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().

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00128 · 2.2th percentile
Weakness
CWE-667 · Improper Locking
Published
2026-05-27T18:17Z
Affected products (7)
ProductVersionsFixed in
linux/linux_kernel≥ 3.12, < 5.10.2585.10.258
linux/linux_kernel≥ 5.11, < 5.15.2095.15.209
linux/linux_kernel≥ 5.16, < 6.1.1756.1.175
linux/linux_kernel≥ 6.2, < 6.6.1406.6.140
linux/linux_kernel≥ 6.7, < 6.12.866.12.86
linux/linux_kernel≥ 6.13, < 6.18.276.18.27
linux/linux_kernel≥ 6.19, < 7.0.47.0.4
References (9)
EPSS history
Timeline
  • 27 MAY 12:57Z
    md/raid5: fix soft lockup in retry_aligned_read()
    cvelistv5