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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-43163 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: md/bitmap: fix GPF in write_page caused by resize race A General Protection Fault occurs in write_page() during array resize: RIP: 0010:write_page+0x22b/0x3c0 [md_mod] This is a use-after-free race between bitmap_daemon_work() and __bitmap_resize(). The daemon iterates over `bitmap->storage.filemap` without locking, while the resize path frees that storage via md_bitmap_file_unmap(). `quiesce()` does not stop the md thread, allowing concurrent access to freed pages. Fix by holding `mddev->bitmap_info.mutex` during the bitmap update.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/140cc839fbeb1ddb33a8da8811b716d88d3905b7 kernel.org Patch 
https://git.kernel.org/stable/c/46ef85f854dfa9d5226b3c1c46493d79556c9589 kernel.org Patch 
https://git.kernel.org/stable/c/5f73c8b33df9a605a591eab72d43a969600c1f8c kernel.org Patch 
https://git.kernel.org/stable/c/9a6f8cd28bb9bb6ed86a6df19331fb08016dee7f kernel.org Patch 
https://git.kernel.org/stable/c/a437e3bf30e32846079e470c1ba5ee790bccdf89 kernel.org Patch 
https://git.kernel.org/stable/c/d3af62411e19752c663fe4f424dbf49d95a4cc7c kernel.org Patch 
https://git.kernel.org/stable/c/d92b8fac294b5f915c50e65ce4ae2262e53614ec kernel.org Patch 
https://git.kernel.org/stable/c/ebcacc7ca22d5e8a03a970f0621ae1d1356b9ae8 kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-43163
NVD Published Date:
05/06/2026
NVD Last Modified:
05/13/2026
Source:
kernel.org