| commit | 4c002cef0e9abe7135d7916c51abce47f7fc1ee2 | |
| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | |
| Fri, 11 Dec 2020 18:39:20 +0000 (11 21:39 +0300) | ||
| committer | Eric Blake <eblake@redhat.com> | |
| Wed, 3 Feb 2021 14:00:33 +0000 (3 08:00 -0600) | ||
| tree | cd2bfc6b897f859e5c26f9c3b761c540a20f97cf | treesnapshot (tar.gz zip) |
| parent | 69b55e03f7e65a36eb954d0b7d4698b258df2708 | commitdiff |
util/iov: make qemu_iovec_init_extended() honest
Actually, we can't extend the io vector in all cases. Handle possible
MAX_IOV and size_t overflows.
For now add assertion to callers (actually they rely on success anyway)
and fix them in the following patch.
Add also some additional good assertions to qemu_iovec_init_slice()
while being here.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20201211183934.169161-3-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Actually, we can't extend the io vector in all cases. Handle possible
MAX_IOV and size_t overflows.
For now add assertion to callers (actually they rely on success anyway)
and fix them in the following patch.
Add also some additional good assertions to qemu_iovec_init_slice()
while being here.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20201211183934.169161-3-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
| block/io.c | diffblobblamehistory | |
| include/qemu/iov.h | diffblobblamehistory | |
| util/iov.c | diffblobblamehistory |