← CVE Intelligence

CVE-2021-47286

bus: mhi: core: Validate channel ID when processing command completions PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: core: Validate channel ID when processing command completions MHI reads the channel ID from the event ring element sent by the device which can be any value between 0 and 255. In order to prevent any out of bound accesses, add a check against the maximum number of channels supported by the controller and those channels not configured yet so as to skip processing of that event ring element.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 1d3173a3bae7039b765a0956e3e4bf846dbaacb8 before 3efec3b4b16fc7af25676a94230a8ab2a3bb867c; affected 1d3173a3bae7039b765a0956e3e4bf846dbaacb8 before aed4f5b51aba41e2afd7cfda20a0571a6a67dfe9; affected 1d3173a3bae7039b765a0956e3e4bf846dbaacb8 before 546362a9ef2ef40b57c6605f14e88ced507f8dd0
Linux / Linuxaffected 5.7; unaffected 0 before 5.7; unaffected 5.10.54 through 5.10.*; unaffected 5.13.6 through 5.13.*; unaffected 5.14 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.