TheArchive/tailscale
1
0
Fork 0
mirror of https://github.com/tailscale/tailscale.git synced 2025-03-29 12:32:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

net/sockstats: prevent crash in setNetMon (#13985)

Browse Source
This commit is contained in:
Andrea Gottardo 2024-10-31 12:00:34 -07:00 committed by GitHub
parent 3477bfd234
commit 6985369479
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
net/sockstats/sockstats_tsgo.go
View File

@ -279,7 +279,13 @@ func setNetMon(netMon *netmon.Monitor) {
if ifName == "" { if ifName == "" {
return return
} }
ifIndex := state.Interface[ifName].Index // DefaultRouteInterface and Interface are gathered at different points in time.
// Check for existence first, to avoid a nil pointer dereference.
iface, ok := state.Interface[ifName]
if !ok {
return
}
ifIndex := iface.Index
sockStats.mu.Lock() sockStats.mu.Lock()
defer sockStats.mu.Unlock() defer sockStats.mu.Unlock()
// Ignore changes to unknown interfaces -- it would require // Ignore changes to unknown interfaces -- it would require