kernel: mtd: require write permissions for locking and badblock ioctls

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

kernel: mtd: require write permissions for locking and badblock ioctls

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

SUSE 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...