CVE-2024-26716
What it is
In the Linux kernel, the following vulnerability has been resolved: usb: core: Prevent null pointer dereference in update_port_device_state Currently, the function update_port_device_state gets the usb_hub from udev->parent by calling usb_hub_to_struct_hub. However, in case the actconfig or the maxchild is 0, the usb_hub would be NULL and upon further accessing to get port_dev would result in null pointer dereference. Fix this by introducing an if check after the usb_hub is populated.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-476 · NULL pointer dereference
- Record status
- Analyzed
Affected
- Linux Kernel < 6.6.18
- Linux Kernel < 6.7.6
- Linux Kernel 6.8
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2024-26716.md and follow it. Check whether this project is affected by CVE-2024-26716. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/12783c0b9e2c7915a50d5ec829630ff2da50472c
- https://git.kernel.org/stable/c/465b545d1d7ef282192ddd4439b08279bdb13f6f
- https://git.kernel.org/stable/c/ed85777c640cf9e6920bb1b60ed8cd48e1f4d873
- https://git.kernel.org/stable/c/12783c0b9e2c7915a50d5ec829630ff2da50472c
- https://git.kernel.org/stable/c/465b545d1d7ef282192ddd4439b08279bdb13f6f
- https://git.kernel.org/stable/c/ed85777c640cf9e6920bb1b60ed8cd48e1f4d873
References
- https://git.kernel.org/stable/c/12783c0b9e2c7915a50d5ec829630ff2da50472c
- https://git.kernel.org/stable/c/465b545d1d7ef282192ddd4439b08279bdb13f6f
- https://git.kernel.org/stable/c/ed85777c640cf9e6920bb1b60ed8cd48e1f4d873
- https://git.kernel.org/stable/c/12783c0b9e2c7915a50d5ec829630ff2da50472c
- https://git.kernel.org/stable/c/465b545d1d7ef282192ddd4439b08279bdb13f6f
- https://git.kernel.org/stable/c/ed85777c640cf9e6920bb1b60ed8cd48e1f4d873