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parallels: avoid fatal abort on large bitmap L1 table

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parallels_load_bitmap() allocated the L1 table with g_new(), which
aborts the whole process on allocation failure instead of returning
an error.

Use g_try_new() and fail the open normally.

Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Thomas Huth <thuth@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Denis V. Lunev 2026-07-22 18:54:56 +02:00
parent d5250d7ed7
commit 4b620302ea
1 changed files with 7 additions and 1 deletions
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8
block/parallels-ext.c
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@ -169,7 +169,13 @@ parallels_load_bitmap(BlockDriverState *bs, uint8_t *data, size_t data_size,
}
if (bf.l1_size != 0) {
l1_table = g_new(uint64_t, bf.l1_size);
l1_table = g_try_new(uint64_t, bf.l1_size);
if (!l1_table) {
error_setg(errp, "Failed to allocate the bitmap L1 table "
"(%" PRIu32 " entries)", bf.l1_size);
goto fail;
}
for (i = 0; i < bf.l1_size; i++, data += sizeof(uint64_t)) {
l1_table[i] = ldq_le_p(data);
}