mtd: ubi: Release device reference on busy detach
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 6.12.110, 6.18.52, 7.2.6
- 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: mtd: ubi: Release device reference on busy detach ubi_detach_mtd_dev() obtains a device reference through ubi_get_device() before checking whether the UBI device is busy. The busy return path drops ubi->ref_count but leaves the device reference held, so the device object cannot be released after a later detach. Drop the device reference before returning -EBUSY.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 7e84c961b2eb062d2f47037dcca52dcd1d3615b5 · fixed in 87812858c4c8df979cb70bcd0040b925a543df6f; From 7e84c961b2eb062d2f47037dcca52dcd1d3615b5 · fixed in e065960366b55ab21e6c643c30dec2a41451900b; From 7e84c961b2eb062d2f47037dcca52dcd1d3615b5 · fixed in 851c5e9a829d56cb0982965f07ef8966a6722884; From 7e84c961b2eb062d2f47037dcca52dcd1d3615b5 · fixed in 31dd710cd84d5dd63c49f640d3a9f36c9699ca95
- Linux Linux
6.9
- KernelLinux
From 6.9.0 · fixed in 6.12.110; From 6.13.0 · fixed in 6.18.52; From 6.19.0 · fixed in 7.2.6