regulator: of: fill in supply names in of_regulator_bulk_get_all()
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 6.2, 6.18.57, 7.2.11
- 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: regulator: of: fill in supply names in of_regulator_bulk_get_all() of_regulator_bulk_get_all() returns an array it allocated itself, and fills in only the consumer of each entry. Every other way of getting a bulk array has the supply name set, because the caller provides it, and the core expects it to be there: regulator_bulk_enable() prints it when a supply fails to enable, so a caller that hands such an array to it dereferences uninitialised memory on that path. Copy each name into the array's own allocation, right behind the entries, so that it shares the array's lifetime and callers still have nothing extra to free. That also retires the fixed 64 byte stack buffer the names were assembled in, which is_supply_name() never bounded the copy against.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- Linux Linux
From 27b9ecc7a9ba1d0014779bfe5a6dbf630899c6e7 · fixed in 82ac8c4939bdbd064b4f54a580fbe4baf0d60e41; From 27b9ecc7a9ba1d0014779bfe5a6dbf630899c6e7 · fixed in a3384ec2516a7cc567bd7c09029282494469b247; From 27b9ecc7a9ba1d0014779bfe5a6dbf630899c6e7 · fixed in e2151c29cec73f6cc70abf1c7cbc7b9b202489f5; From 6.1.110 · fixed in 6.2
- Linux Linux
6.2
- KernelLinux
From 6.2.0 · fixed in 6.18.57; From 6.19.0 · fixed in 7.2.11