CVE-2023-53650
📋 TL;DR
This CVE describes a memory leak vulnerability in the Linux kernel's OMAPFB display driver. If the mipid_detect() function fails during SPI probe initialization, the allocated memory for the 'md' structure isn't properly freed, leading to resource exhaustion over time. This affects Linux systems using the OMAPFB display driver with MIPI DSI interfaces.
💻 Affected Systems
- Linux kernel with OMAPFB display driver
📦 What is this software?
Linux Kernel by Linux
The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...
Learn more about Linux Kernel →Linux Kernel by Linux
The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...
Learn more about Linux Kernel →Linux Kernel by Linux
The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...
Learn more about Linux Kernel →Linux Kernel by Linux
The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...
Learn more about Linux Kernel →Linux Kernel by Linux
The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...
Learn more about Linux Kernel →Linux Kernel by Linux
The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...
Learn more about Linux Kernel →Linux Kernel by Linux
The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...
Learn more about Linux Kernel →Linux Kernel by Linux
The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...
Learn more about Linux Kernel →⚠️ Risk & Real-World Impact
Worst Case
Repeated exploitation could lead to kernel memory exhaustion, causing system instability, denial of service, or potential kernel panic/crash.
Likely Case
Memory leak gradually consumes kernel resources, potentially leading to performance degradation or system instability over extended periods.
If Mitigated
With proper monitoring and timely patching, impact is minimal as this requires specific driver initialization failure conditions.
🎯 Exploit Status
Exploitation requires triggering the mipid_detect() failure condition during driver initialization, which is hardware/driver specific.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Fixed in kernel commits: 09ea1ae4a2ec17774892cfcff50f6d33dfa1e06f, 3b4c21804076e461a6453ee4d09872172336aa1d, 716efd08985e3104031d1b655930b1f1c45fa8a7, 79a3908d1ea6c35157a6d907b1a9d8ec06015e7a, 7a8f9293bee51183023c5e37e7ebf0543cd2a134
Vendor Advisory: https://git.kernel.org/stable/c/09ea1ae4a2ec17774892cfcff50f6d33dfa1e06f
Restart Required: Yes
Instructions:
1. Update Linux kernel to version containing the fix commits. 2. Check distribution-specific security advisories. 3. Reboot system after kernel update.
🔧 Temporary Workarounds
Disable OMAPFB MIPI driver
linuxPrevent loading of the vulnerable driver module
echo 'blacklist omapfb_lcd_mipid' >> /etc/modprobe.d/blacklist.conf
rmmod omapfb_lcd_mipid
🧯 If You Can't Patch
- Monitor kernel memory usage for unusual patterns
- Restrict physical access to systems with OMAP hardware
🔍 How to Verify
Check if Vulnerable:
Check if omapfb_lcd_mipid module is loaded: lsmod | grep omapfb_lcd_mipidCheck Version:
uname -rVerify Fix Applied:
Check kernel version includes fix commits or verify driver version after update📡 Detection & Monitoring
Log Indicators:
- Kernel oops messages
- Memory allocation failures in dmesg
- Driver initialization errors
Network Indicators:
- None - local vulnerability only
SIEM Query:
kernel:omapfb OR kernel:mipid OR kernel:memory_leak🔗 References
- https://git.kernel.org/stable/c/09ea1ae4a2ec17774892cfcff50f6d33dfa1e06f
- https://git.kernel.org/stable/c/3b4c21804076e461a6453ee4d09872172336aa1d
- https://git.kernel.org/stable/c/716efd08985e3104031d1b655930b1f1c45fa8a7
- https://git.kernel.org/stable/c/79a3908d1ea6c35157a6d907b1a9d8ec06015e7a
- https://git.kernel.org/stable/c/7a8f9293bee51183023c5e37e7ebf0543cd2a134
- https://git.kernel.org/stable/c/7cca0af3167dd9603da5fa6fff3392f8338e97e1
- https://git.kernel.org/stable/c/9e3858f82e3ced1e990ef7116c3a16c84e62093e
- https://git.kernel.org/stable/c/ce6e0434e502abdf966164b7c72523fb5fe54635
- https://git.kernel.org/stable/c/d97840bf5a388c6cbf6e46216887bf17be62acc2
