CVE-2024-46739
uio_hv_generic: Fix kernel NULL pointer dereference in hv_uio_rescind
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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: uio_hv_generic: Fix kernel NULL pointer dereference in hv_uio_rescind For primary VM Bus channels, primary_channel pointer is always NULL. This pointer is valid only for the secondary channels. Also, rescind callback is meant for primary channels only. Fix NULL pointer dereference by retrieving the device_obj from the parent for the primary channel.
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
4.16
References 8
git.kernel.org
- stable/c/3d414b64ecf6fd717d7510ffb893c6f23acbf50e
- stable/c/f38f46da80a2ab7d1b2f8fcb444c916034a2dac4
- stable/c/1d8e020e51ab07e40f9dd00b52f1da7d96fec04c
- stable/c/3005091cd537ef8cdb7530dcb2ecfba8d2ef475c
- stable/c/2be373469be1774bbe03b0fa7e2854e65005b1cc
- stable/c/de6946be9c8bc7d2279123433495af7c21011b99
- stable/c/928e399e84f4e80307dce44e89415115c473275b
- stable/c/fb1adbd7e50f3d2de56d0a2bb0700e2e819a329e