CVE-2023-53812 media: mediatek: vcodec: fix decoder disable pm crash
A null pointer dereference in the MediaTek video codec driver causes a kernel crash during device probe, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-53812?
CVE-2023-53812 is a vulnerability in Linux, published on 9 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
media: mediatek: vcodec: fix decoder disable pm crash
Can't call pm_runtime_disable when the architecture support sub device for 'dev->pm.dev' is NUll, or will get below crash log.
[ 10.771551] pc : _raw_spin_lock_irq+0x4c/0xa0 [ 10.771556] lr : __pm_runtime_disable+0x30/0x130 [ 10.771558] sp : ffffffc01e4cb800 [ 10.771559] x29: ffffffc01e4cb800 x28: ffffffdf082108a8 [ 10.771563] x27: ffffffc01e4cbd70 x26: ffffff8605df55f0 [ 10.771567] x25: 0000000000000002 x24: 0000000000000002 [ 10.771570] x23: ffffff85c0dc9c00 x22: 0000000000000001 [ 10.771573] x21: 0000000000000001 x20: 0000000000000000 [ 10.771577] x19: 00000000000000f4 x18: ffffffdf2e9fbe18 [ 10.771580] x17: 0000000000000000 x16: ffffffdf2df13c74 [ 10.771583] x15: 00000000000002ea x14: 0000000000000058 [ 10.771587] x13: ffffffdf2de1b62c x12: ffffffdf2e9e30e4 [ 10.771590] x11: 0000000000000000 x10: 0000000000000001 [ 10.771593] x9 : 0000000000000000 x8 : 00000000000000f4 [ 10.771596] x7 : 6bff6264632c6264 x6 : 0000000000008000 [ 10.771600] x5 : 0080000000000000 x4 : 0000000000000001 [ 10.771603] x3 : 0000000000000008 x2 : 0000000000000001 [ 10.771608] x1 : 0000000000000000 x0 : 00000000000000f4 [ 10.771613] Call trace: [ 10.771617] _raw_spin_lock_irq+0x4c/0xa0 [ 10.771620] __pm_runtime_disable+0x30/0x130 [ 10.771657] mtk_vcodec_probe+0x69c/0x728 [mtk_vcodec_dec 800cc929d6631f79f9b273254c8db94d0d3500dc] [ 10.771662] platform_drv_probe+0x9c/0xbc [ 10.771665] really_probe+0x13c/0x3a0 [ 10.771668] driver_probe_device+0x84/0xc0 [ 10.771671] device_driver_attach+0x54/0x78
Which versions are affected by CVE-2023-53812?
How do I fix CVE-2023-53812?
Apply the vendor's patch.
Is CVE-2023-53812 being exploited?
There is no known exploitation of CVE-2023-53812 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2023-53812, DEBIAN-CVE-2023-53812, GHSA-2h3c-fqw7-c4jj, UBUNTU-CVE-2023-53812.