high CVSS 7.1 EPSS <0.1%

CVE-2024-57907·Kernel vulnerability

In the Linux kernel, the following vulnerability has been resolved: iio: adc: rockchip_saradc: fix information leak in triggered buffer The 'data' local struct is used to push data to user space from a triggered buffer, but it does not set values for inactive channels, as it only uses iio_for_each_active_channel() to assign new values. Initialize the struct to zero before using it to avoid pushing uninitialized information to userspace.

Severity
high
Software
Kernel
Fixed in
6.12.10
Published

How likely is exploitation

FIRST's Exploit Prediction Scoring System puts the probability of this CVE being exploited in the next 30 days at <0.1% — higher than 3% of all published CVEs. EPSS is an independent forecast of exploitation, not a severity rating: it says nothing about how much damage a successful attack does, which is what a CVSS score measures.

Read the two together. CVE-2024-57907 scores 7.1 on CVSS, so a successful attack would be serious — but at <0.1%, almost nobody is currently attempting it. That is a different situation from a flaw under mass exploitation, and it is usually the difference between patching on your next maintenance window and patching tonight.

Affected versions

From: 6.7

Until: 6.12.10

Fixed in: 6.12.10

How to fix this CVE

Update your Linux kernel to version 6.12.10 or later to patch a memory disclosure vulnerability in the Rockchip SARADC driver. The vulnerability allows uninitialized kernel memory to be exposed to userspace when reading triggered buffer data from inactive ADC channels. This fix ensures all data structures are properly zeroed before transmission, preventing sensitive kernel information leakage.

sudo dnf update kernel

Defensia detects this vulnerability

How to check if you are affected

  1. Step 1: Check your current kernel version with `uname -r` and verify if it falls within 6.7 to 6.12.9 range
  2. Step 2: Confirm the Rockchip SARADC driver is loaded by running `lsmod | grep rockchip_saradc` or checking `/sys/class/iio/` for active ADC devices
  3. Step 3: Search system logs for triggered buffer read operations: `grep -i 'triggered\|buffer\|saradc' /var/log/kernel.log /var/log/syslog 2>/dev/null`
  4. Step 4: After patching, verify the new kernel version with `uname -r` and confirm it is 6.12.10 or later

FAQ

What is CVE-2024-57907?

This vulnerability is a memory information leak in the Linux kernel's Rockchip SARADC (Successive Approximation ADC) driver. When triggered buffer reads occur, uninitialized kernel memory from inactive ADC channels is sent to userspace, potentially exposing sensitive kernel data.

Is CVE-2024-57907 being actively exploited?

No, this vulnerability is not listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, and no public exploits are currently available. However, it should still be patched promptly as it allows direct kernel memory disclosure.

What versions of Kernel are affected by CVE-2024-57907?

Linux kernel versions 6.7 through 6.12.9 are affected. The fix is included in kernel 6.12.10 and later stable releases.

How do I check if my server is vulnerable to CVE-2024-57907?

Run `uname -r` to check your kernel version. If it shows a version between 6.7 and 6.12.9, and `lsmod | grep rockchip_saradc` returns output indicating the driver is loaded, your system is vulnerable.

Does Defensia detect CVE-2024-57907?

Yes — Defensia's CVE advisory scanner compares installed package versions against the NVD database. If Kernel is installed on a monitored server, CVE-2024-57907 will appear in your dashboard with remediation steps.

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References

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