In the Linux kernel, the following vulnerability has been resolved:
regulator: pca9450: Use devmregistersysoffhandler
With module test, there is error dump: ------------[ cut here ]------------ notifier callback pca9450i2crestarthandler already registered WARNING: kernel/notifier.c:23 at notifierchainregister+0x5c/0x88, CPU#0: kworker/u16:3/50 Call trace: notifierchainregister+0x5c/0x88 (P) atomicnotifierchainregister+0x30/0x58 registerrestarthandler+0x1c/0x28 pca9450i2cprobe+0x418/0x538 i2cdeviceprobe+0x220/0x3d0 really_probe+0x114/0x410 __driverprobedevice+0xa0/0x150 driverprobedevice+0x40/0x114 __deviceattachdriver+0xd4/0x12c
So use devmregistersysoffhandler to let kernel handle the resource free to avoid kernel dump.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39771.json",
"cna_assigner": "Linux"
}