CVE-2022-49982
media: pvrusb2: fix memory leak in pvr_probe
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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: media: pvrusb2: fix memory leak in pvr_probe The error handling code in pvr2_hdw_create forgets to unregister the v4l2 device. When pvr2_hdw_create returns back to pvr2_context_create, it calls pvr2_context_destroy to destroy context, but mp->hdw is NULL, which leads to that pvr2_hdw_destroy directly returns. Fix this by adding v4l2_device_unregister to decrease the refcount of usb interface.
Timeline
- CVE published327 days
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.30
References 8
git.kernel.org
- stable/c/2fe46195d2f0d5d09ea65433aefe47a4d0d0ff4d
- stable/c/ba7dd8a9686a61a34b3a7b922ce721378d4740d0
- stable/c/491762b3250fb06a0c97b5198656ea48359eaeed
- stable/c/466b67c0543b2ae67814d053f6e29b39be6b33bb
- stable/c/bacb37bdc2a21c8f7fdc83dcc0dea2f4ca1341fb
- stable/c/f2f6e67522916f53ad8ccd4dbe68dcf76e9776e5
- stable/c/c02d2a91a85c4c4d05826cd1ea74a9b8d42e4280
- stable/c/945a9a8e448b65bec055d37eba58f711b39f66f0