Anatol Belski 6e7f888f5d block: qcow: Add refcount overflow protection ...

Reject refcount values exceeding the maximum for the image's
refcount_order. This prevents silent truncation when storing
refcounts in narrow widths (e.g., 1-bit max is 1, 4-bit max is 15,
etc.).

Returns RefcountOverflow error with the attempted value, maximum,
and bit width. Propagates as EINVAL to the guest.

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>

2026-01-25 09:36:42 +00:00

..

src

block: qcow: Add refcount overflow protection

2026-01-25 09:36:42 +00:00

Cargo.toml

block: qcow: Validate incompatible feature bits

2026-01-23 18:58:56 +00:00