CVE-2026-43132
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dm-verity Buffer Overflow in Linux Kernel

Publication date: 2026-05-06

Last updated on: 2026-05-06

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: dm-verity: correctly handle dm_bufio_client_create() failure If either of the calls to dm_bufio_client_create() in verity_fec_ctr() fails, then dm_bufio_client_destroy() is later called with an ERR_PTR() argument. That causes a crash. Fix this.
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Meta Information
Published
2026-05-06
Last Modified
2026-05-06
Generated
2026-05-06
AI Q&A
2026-05-06
EPSS Evaluated
N/A
NVD
CVE-2026-43132
EUVD
EUVD-2026-27692
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability exists in the Linux kernel's dm-verity component. Specifically, if the function dm_bufio_client_create() fails during calls in verity_fec_ctr(), the subsequent call to dm_bufio_client_destroy() is made with an invalid error pointer (ERR_PTR()) argument. This improper handling causes the system to crash.


How can this vulnerability impact me? :

The impact of this vulnerability is that it can cause the Linux kernel to crash when the error handling in dm-verity is not properly managed. This could lead to system instability or denial of service due to unexpected crashes.


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