In the Linux kernel, the following vulnerability has been resolved:
md raid: fix hang when stopping arrays with metadata through dm-raid
When using device-mapper's dm-raid target, stopping a RAID array can cause
the system to hang under specific conditions.
This occurs when:
- A dm-raid managed device tree is suspended from top to bottom
(the top-level RAID device is suspended first, followed by its
underlying metadata and data devices)
- The top-level RAID device is then removed
Removing the top-level device triggers a hang in the following sequence:
the dm-raid destructor calls md_stop(), which tries to flush the
write-intent bitmap by writing to the metadata sub-devices. However, these
devices are already suspended, making them unable to complete the write-intent
operations and causing an indefinite block.
Fix:
- Prevent bitmap flushing when md_stop() is called from dm-raid
destructor context
and avoid a quiescing/unquescing cycle which could also cause I/O
- Still allow write-intent bitmap flushing when called from dm-raid
suspend context
This ensures that RAID array teardown can complete successfully even when the
underlying devices are in a suspended state.
This second patch uses md_is_rdwr() to distinguish between suspend and
destructor paths as elaborated on above.
References
Configurations
Configuration 1 (hide)
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History
15 May 2026, 17:58
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux linux Kernel
Linux |
|
| CPE | cpe:2.3:o:linux:linux_kernel:6.0:-:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.0:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.0:rc7:*:*:*:*:*:* |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | NVD-CWE-noinfo | |
| References | () https://git.kernel.org/stable/c/24783dd06de870d646c25207bae186f78195f912 - Patch | |
| References | () https://git.kernel.org/stable/c/338378dfffbdbb8d37a18f0a0c0358812671f91e - Patch | |
| References | () https://git.kernel.org/stable/c/cefcb9297fbdb6d94b61787b4f8d84f55b741470 - Patch |
08 May 2026, 14:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-08 14:16
Updated : 2026-05-15 17:58
NVD link : CVE-2026-43309
Mitre link : CVE-2026-43309
CVE.ORG link : CVE-2026-43309
JSON object : View
Products Affected
linux
- linux_kernel
CWE