Vulnerability Details : CVE-2024-26716
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.
Vulnerability category: Memory Corruption
Products affected by CVE-2024-26716
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2024-26716
0.01%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 1 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2024-26716
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST | 2025-01-07 |
CWE ids for CVE-2024-26716
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2024-26716
-
https://git.kernel.org/stable/c/ed85777c640cf9e6920bb1b60ed8cd48e1f4d873
usb: core: Prevent null pointer dereference in update_port_device_state - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/12783c0b9e2c7915a50d5ec829630ff2da50472c
usb: core: Prevent null pointer dereference in update_port_device_state - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/465b545d1d7ef282192ddd4439b08279bdb13f6f
usb: core: Prevent null pointer dereference in update_port_device_state - kernel/git/stable/linux.git - Linux kernel stable treePatch
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