From: "Fabian Grünbichler" <f.gruenbichler@proxmox.com>
To: pbs-devel@lists.proxmox.com
Subject: [PATCH proxmox-backup] pbs-key-config: ensure password-protected key is long enough
Date: Thu, 5 Nov 2026 12:07:25 +0100 [thread overview]
Message-ID: <20261105110750.805444-1-f.gruenbichler@proxmox.com> (raw)
while openssl fails if provided an empty slice, the resulting error message
points at the password instead of the key. checking for at least one byte of
data ensures plain and password-protected keys are distinguished.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---
pbs-key-config/src/lib.rs | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/pbs-key-config/src/lib.rs b/pbs-key-config/src/lib.rs
index 7b87b4ea9..0cffdf008 100644
--- a/pbs-key-config/src/lib.rs
+++ b/pbs-key-config/src/lib.rs
@@ -211,7 +211,7 @@ impl KeyConfig {
let derived_key = kdf.derive_key(&passphrase)?;
- if raw_data.len() < 32 {
+ if raw_data.len() < EXPECTED_KEY_LEN + 1 {
bail!("Unable to decrypt key - short data");
}
let iv = &raw_data[0..16];
--
2.47.3
reply other threads:[~2026-11-05 11:07 UTC|newest]
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