vulnerability
Red Hat: CVE-2021-47055: kernel: mtd: require write permissions for locking and badblock ioctls (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 1 | (AV:L/AC:L/Au:S/C:N/I:N/A:N) | 2024-02-29 | 2024-06-06 | 2025-01-13 |
Severity
1
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:N)
Published
2024-02-29
Added
2024-06-06
Modified
2025-01-13
Description
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 flashes with their WP# tied to GND. OTPLOCK
is always write-once.
MEMSETBADBLOCK modifies the bad block table.
Solution(s)
redhat-upgrade-kernelredhat-upgrade-kernel-rt
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