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 affects the Linux kernel MTD subsystem. The root cause is that MEMLOCK, MEMUNLOCK, and OTPLOCK modify protection bits and thus require write permission; MEMLOCK/MEMUNLOCK may be write-only on some hardware (e.g., SPI-NOR with WP# tied to GND) and OTPLOCK is always write-once. MEMSE...

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...

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...