CVE-2026-46095

md/md-llbitmap: raise barrier before state machine transition

MEDIUM
5.5
CVSS Score
Published: May 27, 2026 at 12:58 PM UTC
Updated: June 27, 2026 at 11:41 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: raise barrier before state machine transition Move the barrier raise operation before calling llbitmap_state_machine() in both llbitmap_start_write() and llbitmap_start_discard(). This ensures the barrier is in place before any state transitions occur, preventing potential race conditions where the state machine could complete before the barrier is properly raised.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.18 ≤ v < 6.18.276.18 ≤ v < 7.0.46.18 ≤ v < 7.16.19 ≤ v < 7.0.45ab829f1971dc99f2aac10846c378e67fc875abc6.18
Vendor states this is fixed in 9142f00a9287ca38152717e3e88a033a27774e7f (fixed)
Vendor states this is fixed in 9701d51dd378380ba05293fa391e8ba01065ae8d (fixed)
Vendor states this is fixed in ef4ca3d4bf09716cff9ba00eb0351deadc8417ab (fixed)
Vendor states this is fixed in 6.18 (unaffected)
Vendor states this is fixed in 6.18.27 (unaffected)
Vendor states this is fixed in 7.0.4 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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