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Harden LUKS2 decryption with datashift parameters.

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Abort early if detached header is passed in API
by any chance.
This commit is contained in:
Ondrej Kozina
2022-06-27 15:14:14 +02:00
parent 24d498e393
commit 0ffd105cb8
1 changed files with 4 additions and 0 deletions
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4
lib/luks2/luks2_reencrypt.c
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@@ -2734,8 +2734,12 @@ static int reencrypt_decrypt_with_datashift_init(struct crypt_device *cd,
assert(hdr);
assert(params);
assert(params->resilience);
assert(params->data_shift);
assert(vks);
if (!data_offset)
return -EINVAL;
if (params->max_hotzone_size > params->data_shift) {
log_err(cd, _("Moved segment size can not be greater than data shift value."));
return -EINVAL;