purgatory/Xray-core
1
0
Fork 0
mirror of https://github.com/XTLS/Xray-core.git synced 2024-11-21 20:56:06 +03:00
Code Issues Packages Projects Releases Wiki Activity

Sniff: Prevent crash on QUIC sniffer panic (#3978)

Browse Source 
Co-authored-by: RPRX <63339210+RPRX@users.noreply.github.com>
This commit is contained in:
风扇滑翔翼 2024-11-11 12:20:54 +08:00 committed by GitHub
parent 480748403a
commit 1ffb8a92cd
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 13 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
common/protocol/quic/sniff.go
View File

@ -1,6 +1,7 @@
package quic package quic
import ( import (
"context"
"crypto" "crypto"
"crypto/aes" "crypto/aes"
"crypto/tls" "crypto/tls"
@ -46,7 +47,18 @@ var (
errNotQuicInitial = errors.New("not initial packet") errNotQuicInitial = errors.New("not initial packet")
) )
func SniffQUIC(b []byte) (*SniffHeader, error) { func SniffQUIC(b []byte) (resultReturn *SniffHeader, errorReturn error) {
// In extremely rare cases, this sniffer may cause slice error
// and we set recover() here to prevent crash.
// TODO: Thoroughly fix this panic
defer func() {
if r := recover(); r != nil {
errors.LogError(context.Background(), "Failed to sniff QUIC: ", r)
resultReturn = nil
errorReturn = common.ErrNoClue
}
}()
// Crypto data separated across packets // Crypto data separated across packets
cryptoLen := 0 cryptoLen := 0
cryptoData := bytespool.Alloc(int32(len(b))) cryptoData := bytespool.Alloc(int32(len(b)))