CVE-2021-47055

A flaw was found in the Linux Kernel, requiring write permissions for locking and badblock ioctls, as they modify protection bits...

CVE-2021-47055

In the Linux kernel, the following vulnerability has been resolved: mtd: require write permissions for locking and badblock ioctls MEMLOCK, MEMUNLOCK and OTPLOCK modify protection bits. Thus require write permission. Depending on the hardware MEMLOCK might even be write-once, e.g. for SPI-NOR...

CVE-2021-47055

CVE-2021-47055 — Linux kernel mtd ioctl protection bug Connected sources confirm a concrete Linux kernel vulnerability in the mtd subsystem: certain ioctls (MEMLOCK, MEMUNLOCK, OTPLOCK) modify protection bits and historically required write permission, with MEMLOCK potentially being write-once on...

CVE-2021-47055

In the Linux kernel, the following vulnerability has been resolved: mtd: require write permissions for locking and badblock ioctls MEMLOCK, MEMUNLOCK and OTPLOCK modify protection bits. Thus require write permission. Depending on the hardware MEMLOCK might even be write-once, e.g. for SPI-NOR...

CVE-2021-47055 mtd: require write permissions for locking and badblock ioctls

In the Linux kernel, the following vulnerability has been resolved: mtd: require write permissions for locking and badblock ioctls MEMLOCK, MEMUNLOCK and OTPLOCK modify protection bits. Thus require write permission. Depending on the hardware MEMLOCK might even be write-once, e.g. for SPI-NOR...