CVE-2023-54182 f2fs: fix to check readonly condition correctly

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to check readonly condition correctly With below case, it can mount multi-device image w/ rw option, however one of secondary device is set as ro, later update will cause panic, so let's introduce f2fsdevisreadonly, and...

CVE-2023-53447

In the Linux kernel, the following vulnerability has been resolved: f2fs: don't reset unchangable mount option in f2fsremount syzbot reports a bug as below: general protection fault, probably for non-canonical address 0xdffffc0000000009: 0000 1 PREEMPT SMP KASAN RIP: 0010:lockacquire+0x69/0x2000...

CVE-2023-53447

CVE-2023-53447 affects the Linux kernel's f2fs: remount() may reset the READ_EXTENT_CACHE mount option, creating a race with fallocate() that can trigger a NULL pointer dereference under extent_cache locks. Root cause is a race between remount and fallocate due to default_options panel updating o...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that originates from a reset of immutable mount options in the f2fsremount function, which could lead to a general protectio...