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CVE-2025-38429

Severity
CRITICAL
CVSS
10.0
EPSS
0.00389
Risk score
40.14
CISA KEV
No
PoC
No
Published
2025-07-25
Modified
2026-08-05
First seen
2026-08-05
Aliases
EUVD-2025-22656, GHSA-F5FC-M65H-GR9J
Products
Linux:Linux 5.19, Linux:Linux bbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34 <0007ef098dab48f1ba58364c40b4809f1e21b130, Linux:Linux bbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34 <44b9620e82bbec2b9a6ac77f63913636d84f96dc, Linux:Linux bbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34 <6f18d174b73d0ceeaa341f46c0986436b3aefc9a, Linux:Linux bbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34 <f704a80d9fa268e51a6cc5242714502c3c1fa605, Linux:Linux patch: 0, Linux:Linux patch: 6.12.35, Linux:Linux patch: 6.15.4, Linux:Linux patch: 6.16, Linux:Linux patch: 6.6.95, linux:linux_kernel
Sources
nvd CVE-2025-38429
euvd EUVD-2025-22656

Description

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: ep: Update read pointer only after buffer is written Inside mhi_ep_ring_add_element, the read pointer (rd_offset) is updated before the buffer is written, potentially causing race conditions where the host sees an updated read pointer before the buffer is actually written. Updating rd_offset prematurely can lead to the host accessing an uninitialized or incomplete element, resulting in data corruption. Invoke the buffer write before updating rd_offset to ensure the element is fully written before signaling its availability.

References