CVE-2026-43163

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-43163
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.

4.7 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/140cc839fbeb1ddb33a8da8811b716d88d3905b7 Patch
https://git.kernel.org/stable/c/46ef85f854dfa9d5226b3c1c46493d79556c9589 Patch
https://git.kernel.org/stable/c/5f73c8b33df9a605a591eab72d43a969600c1f8c Patch
https://git.kernel.org/stable/c/9a6f8cd28bb9bb6ed86a6df19331fb08016dee7f Patch
https://git.kernel.org/stable/c/a437e3bf30e32846079e470c1ba5ee790bccdf89 Patch
https://git.kernel.org/stable/c/d3af62411e19752c663fe4f424dbf49d95a4cc7c Patch
https://git.kernel.org/stable/c/d92b8fac294b5f915c50e65ce4ae2262e53614ec Patch
https://git.kernel.org/stable/c/ebcacc7ca22d5e8a03a970f0621ae1d1356b9ae8 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

13 May 2026, 21:19

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
References () https://git.kernel.org/stable/c/140cc839fbeb1ddb33a8da8811b716d88d3905b7 - () https://git.kernel.org/stable/c/140cc839fbeb1ddb33a8da8811b716d88d3905b7 - Patch
References () https://git.kernel.org/stable/c/46ef85f854dfa9d5226b3c1c46493d79556c9589 - () https://git.kernel.org/stable/c/46ef85f854dfa9d5226b3c1c46493d79556c9589 - Patch
References () https://git.kernel.org/stable/c/5f73c8b33df9a605a591eab72d43a969600c1f8c - () https://git.kernel.org/stable/c/5f73c8b33df9a605a591eab72d43a969600c1f8c - Patch
References () https://git.kernel.org/stable/c/9a6f8cd28bb9bb6ed86a6df19331fb08016dee7f - () https://git.kernel.org/stable/c/9a6f8cd28bb9bb6ed86a6df19331fb08016dee7f - Patch
References () https://git.kernel.org/stable/c/a437e3bf30e32846079e470c1ba5ee790bccdf89 - () https://git.kernel.org/stable/c/a437e3bf30e32846079e470c1ba5ee790bccdf89 - Patch
References () https://git.kernel.org/stable/c/d3af62411e19752c663fe4f424dbf49d95a4cc7c - () https://git.kernel.org/stable/c/d3af62411e19752c663fe4f424dbf49d95a4cc7c - Patch
References () https://git.kernel.org/stable/c/d92b8fac294b5f915c50e65ce4ae2262e53614ec - () https://git.kernel.org/stable/c/d92b8fac294b5f915c50e65ce4ae2262e53614ec - Patch
References () https://git.kernel.org/stable/c/ebcacc7ca22d5e8a03a970f0621ae1d1356b9ae8 - () https://git.kernel.org/stable/c/ebcacc7ca22d5e8a03a970f0621ae1d1356b9ae8 - Patch
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 4.7
CWE CWE-362

06 May 2026, 12:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-05-06 12:16

Updated : 2026-05-13 21:19

NVD link : CVE-2026-43163

Mitre link : CVE-2026-43163

CVE.ORG link : CVE-2026-43163

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')