CVE-2022-50767
fbdev: smscufx: Fix several use-after-free bugs
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
Summary
In the Linux kernel, the following vulnerability has been resolved: fbdev: smscufx: Fix several use-after-free bugs Several types of UAFs can occur when physically removing a USB device. Adds ufx_ops_destroy() function to .fb_destroy of fb_ops, and in this function, there is kref_put() that finally calls ufx_free(). This fix prevents multiple UAFs.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
3.2
References 8
git.kernel.org
- stable/c/6f2075ea883e5d7730d0c9ebb1bb8e7a1a7e953f
- stable/c/3f40852d671072836fb7ae331a1f28a24223c4e8
- stable/c/70faf9d9b6cc74418716bbf76fe75bd2da10ad4a
- stable/c/5385af2f89bc352fb70753ab41b2bb036190141f
- stable/c/d9ddfeb01fb95ffbbc7031d46a5ee2a5e45cbb86
- stable/c/cc6a7249842fceda7574ceb63275a2d5e99d2862
- stable/c/8d924b262f3178a9b17c17d4306a9f426c508bd9
- stable/c/cc67482c9e5f2c80d62f623bcc347c29f9f648e1