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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

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

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

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

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

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