CVE-2025-38429

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.

CVSS breakdown

Affected products

• Linux / Linuxbbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34 – 44b9620e82bbec2b9a6ac77f63913636d84f96dc
• Linux / Linuxbbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34 – f704a80d9fa268e51a6cc5242714502c3c1fa605
• Linux / Linuxbbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34 – 0007ef098dab48f1ba58364c40b4809f1e21b130
• Linux / Linuxbbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34 – 6f18d174b73d0ceeaa341f46c0986436b3aefc9a
• Linux / Linux5.19 – 5.19
• Linux / Linux0 – 5.19
• Linux / Linux6.6.95 – 6.6.*
• Linux / Linux6.12.35 – 6.12.*
• Linux / Linux6.15.4 – 6.15.*
• Linux / Linux6.16 – *
• Linux / Linux kernel5.19 – 6.6.95

References

• MISChttps://git.kernel.org/stable/c/44b9620e82bbec2b9a6ac77f63913636d84f96dc
• MISChttps://git.kernel.org/stable/c/f704a80d9fa268e51a6cc5242714502c3c1fa605
• MISChttps://git.kernel.org/stable/c/0007ef098dab48f1ba58364c40b4809f1e21b130
• MISChttps://git.kernel.org/stable/c/6f18d174b73d0ceeaa341f46c0986436b3aefc9a