CVE-2023-52754
media: imon: fix access to invalid resource for the second interface
- State
- Published
- Severity
- Not scored
- Published
- May 21, 2024
- Updated
- May 11, 2026
- Reserved
- May 21, 2024
Description
In the Linux kernel, the following vulnerability has been resolved:
media: imon: fix access to invalid resource for the second interface
imon driver probes two USB interfaces, and at the probe of the second interface, the driver assumes blindly that the first interface got bound with the same imon driver. It's usually true, but it's still possible that the first interface is bound with another driver via a malformed descriptor. Then it may lead to a memory corruption, as spotted by syzkaller; imon driver accesses the data from drvdata as struct imon_context object although it's a completely different one that was assigned by another driver.
This patch adds a sanity check -- whether the first interface is really bound with the imon driver or not -- for avoiding the problem above at the probe time.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
LinuxLinux |
|
LinuxLinux |
|
References
- https://git.kernel.org/stable/c/0f5068519f89d928d6c51100e4b274479123829f
- https://git.kernel.org/stable/c/5e0b788fb96be36d1baf1a5c88d09c7c82a0452a
- https://git.kernel.org/stable/c/b083aaf5db2eeca9e362723258e5d8698f7dd84e
- https://git.kernel.org/stable/c/10ec5a97f8f5a772a1a42b4eb27196b447cd3aa9
- https://git.kernel.org/stable/c/2a493a34bd6e496c55fabedd82b957193ace178f
- https://git.kernel.org/stable/c/a1766a4fd83befa0b34d932d532e7ebb7fab1fa7
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