i3c: renesas: Fix out-of-bounds access for newdevs mask
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 7.2.4
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: i3c: renesas: Fix out-of-bounds access for newdevs mask When software initiates DAA (Dynamic Address Assignment), the controller reports the result via the NRSPQP (Normal Response Queue Port Register). The data length field of the response descriptor, which is accessible through the NRSPQP register, indicates the number of devices remaining after DAA. Consequently, when the bus is empty, this field contains the maximum number of devices supported by the controller (8 for the Renesas I3C controller). Adjust the condition that computes the newly discovered devices bitmask to prevent an out-of-bounds when the I3C bus is empty.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From e7218986319b4e903dfb4642dcbd1087cf16aaec · fixed in 769f5a233efcf8587f70fb2244a202d88582c746; From e7218986319b4e903dfb4642dcbd1087cf16aaec · fixed in 50dec95c9d1f1f82819bc898ef2b60fa83fd4ccd
- Linux Linux
7.0
- KernelLinux
From 7.0.0 · fixed in 7.2.4