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rpc: fix off-by-one in ipc endpoint length check #26614 (#985)

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This change fixes a minor flaw in the check for ipc endpoint length. The max_path_size is the max path that an ipc endpoint can have, which is 208. However, that size concerns the null-terminated pathname, so we need to account for an extra null-character too.

Co-authored-by: Martin Holst Swende <martin@swende.se>
This commit is contained in:
Daniel Liu 2025-04-28 09:10:46 +08:00 committed by GitHub
parent c02ab17b17
commit 9c5712a79c
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1 changed files with 3 additions and 2 deletions
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5
rpc/ipc_unix.go
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@ -31,8 +31,9 @@ import (
// ipcListen will create a Unix socket on the given endpoint.
func ipcListen(endpoint string) (net.Listener, error) {
if len(endpoint) > int(max_path_size) {
log.Warn(fmt.Sprintf("The ipc endpoint is longer than %d characters. ", max_path_size),
// account for null-terminator too
if len(endpoint)+1 > int(max_path_size) {
log.Warn(fmt.Sprintf("The ipc endpoint is longer than %d characters. ", max_path_size-1),
"endpoint", endpoint)
}