Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: btrfs: added handling for RAID1C23/DUP to btrfsreduceallocprofile Callers of btrfsreduceallocprofile expect it to return exactly one allocation profile flag. If this is not done, it may ultimately result in a WARNON and remount-r...

CVE-2023-53243

CVE-2023-53243 : In the Linux kernel’s btrfs code, the function btrfs_reduce_alloc_profile was not updated to include new allocation flags (DUP, RAID1C34); it can return multiple flags when blocks have mixed/unknown profiles, risking a WARN_ON and a remount-ro during new block allocations. The is...