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CVE-2026-89457: CVE-2026-89457: güvenlik açığı
Açıklama (NVD)
In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Guard sysfs discipline callbacks against unallocated private data Several sysfs show/store handlers call a discipline callback that dereferences device->private, either directly or through the DASD_DEFINE_ATTR() macro. During dasd_generic_set_online() the discipline is assigned before check_device() allocates device->private, so an unprivileged read of one of these world-readable attributes in that window dereferences a NULL pointer and panics. Guard the dereference inside each callback that actually touches device->private.
Özet bilgiler
- EPSS
- %0,18 (yüzdelik 7)
- Yama
- Yok / bilinmiyor