Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected bbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34 before 44b9620e82bbec2b9a6ac77f63913636d84f96dc; affected bbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34 before f704a80d9fa268e51a6cc5242714502c3c1fa605; affected bbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34 before 0007ef098dab48f1ba58364c40b4809f1e21b130; affected bbdcba57a1a26a4439a4f4ecdbfaf80a10fd8f34 before 6f18d174b73d0ceeaa341f46c0986436b3aefc9a |
| Linux / Linux | affected 5.19; unaffected 0 before 5.19; unaffected 6.6.95 through 6.6.*; unaffected 6.12.35 through 6.12.*; unaffected 6.15.4 through 6.15.*; unaffected 6.16 through * |
CWE
No CWE identifiers supplied.