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In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8 the RPA PCI Hotplug driver has a user-tolerable buffer overflow when writing a new device name to the driver from userspace allowing userspace to write data to the kernel stack frame directly. This occurs because add_slot_store and remove_slot_store mishandle drc_name '\0' termination aka CID-cc7a0bb058b8.

🗓️ 27 Mar 2021 07:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 1 Views

RPA PCI Hotplug driver allows buffer overflow when writing a device name due to termination handling errors.

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16 Dec 2021 08:00Current
8.4High risk
Vulners AI Score8.4
CVSS 3.16.7
CVSS 27.2
EPSS0.00858
1