CVE-2022-48672
of: fdt: fix off-by-one error in unflatten_dt_nodes()
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
- 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
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: of: fdt: fix off-by-one error in unflatten_dt_nodes() Commit 78c44d910d3e ("drivers/of: Fix depth when unflattening devicetree") forgot to fix up the depth check in the loop body in unflatten_dt_nodes() which makes it possible to overflow the nps[] buffer... Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.7
References 7
git.kernel.org
- stable/c/cbdda20ce363356698835185801a58a28f644853
- stable/c/2566706ac6393386a4e7c4ce23fe17f4c98d9aa0
- stable/c/e0e88c25f88b9805572263c9ed20f1d88742feaf
- stable/c/ee4369260e77821602102dcc7d792de39a56365c
- stable/c/ba6b9f7cc1108bad6e2c53b1d6e0156379188db7
- stable/c/2133f451311671c7c42b5640d2b999326b39aa0e
- stable/c/2f945a792f67815abca26fa8a5e863ccf3fa1181