From fd115bee31d04f1277560b82bb982e6aa19fc977 Mon Sep 17 00:00:00 2001 From: Leo Famulari Date: Thu, 12 Jul 2018 11:23:24 -0400 Subject: [PATCH] gnu: Syncthing: Fix a crash bug. * gnu/packages/patches/syncthing-fix-crash.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/syncthing.scm (syncthing)[source]: Use it. --- gnu/local.mk | 1 + .../patches/syncthing-fix-crash.patch | 72 +++++++++++++++++++ gnu/packages/syncthing.scm | 2 + 3 files changed, 75 insertions(+) create mode 100644 gnu/packages/patches/syncthing-fix-crash.patch diff --git a/gnu/local.mk b/gnu/local.mk index 8ec1f161ed..72a489210b 100644 --- a/gnu/local.mk +++ b/gnu/local.mk @@ -1138,6 +1138,7 @@ dist_patch_DATA = \ %D%/packages/patches/superlu-dist-scotchmetis.patch \ %D%/packages/patches/swish-e-search.patch \ %D%/packages/patches/swish-e-format-security.patch \ + %D%/packages/patches/syncthing-fix-crash.patch \ %D%/packages/patches/synfigstudio-fix-ui-with-gtk3.patch \ %D%/packages/patches/t1lib-CVE-2010-2642.patch \ %D%/packages/patches/t1lib-CVE-2011-0764.patch \ diff --git a/gnu/packages/patches/syncthing-fix-crash.patch b/gnu/packages/patches/syncthing-fix-crash.patch new file mode 100644 index 0000000000..d27e543982 --- /dev/null +++ b/gnu/packages/patches/syncthing-fix-crash.patch @@ -0,0 +1,72 @@ +Avoid a crash: + +https://github.com/syncthing/syncthing/issues/5002 + +Patch copied from upstream source repository: + +https://github.com/syncthing/syncthing/commit/35a75a95dc6383b2d73ab645f1407f7907ec1a2c + +From 35a75a95dc6383b2d73ab645f1407f7907ec1a2c Mon Sep 17 00:00:00 2001 +From: Jakob Borg +Date: Wed, 13 Jun 2018 19:07:52 +0200 +Subject: [PATCH] lib/model: Don't panic when rechecking file (fixes #5002) + (#5003) + +--- + lib/model/model.go | 2 +- + lib/model/model_test.go | 26 ++++++++++++++++++++++++++ + 2 files changed, 27 insertions(+), 1 deletion(-) + +diff --git a/lib/model/model.go b/lib/model/model.go +index 5a9146e0..302f06c5 100644 +--- a/lib/model/model.go ++++ b/lib/model/model.go +@@ -1373,7 +1373,7 @@ func (m *Model) recheckFile(deviceID protocol.DeviceID, folderFs fs.Filesystem, + return + } + +- if blockIndex > len(cf.Blocks) { ++ if blockIndex >= len(cf.Blocks) { + l.Debugf("%v recheckFile: %s: %q / %q i=%d: block index too far", m, deviceID, folder, name, blockIndex) + return + } +diff --git a/lib/model/model_test.go b/lib/model/model_test.go +index 295eafc1..456bbc4a 100644 +--- a/lib/model/model_test.go ++++ b/lib/model/model_test.go +@@ -3608,6 +3608,32 @@ func TestIssue4903(t *testing.T) { + } + } + ++func TestIssue5002(t *testing.T) { ++ // recheckFile should not panic when given an index equal to the number of blocks ++ ++ db := db.OpenMemory() ++ m := NewModel(defaultCfgWrapper, protocol.LocalDeviceID, "syncthing", "dev", db, nil) ++ m.AddFolder(defaultFolderConfig) ++ m.StartFolder("default") ++ ++ m.ServeBackground() ++ defer m.Stop() ++ ++ if err := m.ScanFolder("default"); err != nil { ++ t.Error(err) ++ } ++ ++ file, ok := m.CurrentFolderFile("default", "foo") ++ if !ok { ++ t.Fatal("test file should exist") ++ } ++ nBlocks := len(file.Blocks) ++ ++ m.recheckFile(protocol.LocalDeviceID, defaultFolderConfig.Filesystem(), "default", "foo", nBlocks-1, []byte{1, 2, 3, 4}) ++ m.recheckFile(protocol.LocalDeviceID, defaultFolderConfig.Filesystem(), "default", "foo", nBlocks, []byte{1, 2, 3, 4}) // panic ++ m.recheckFile(protocol.LocalDeviceID, defaultFolderConfig.Filesystem(), "default", "foo", nBlocks+1, []byte{1, 2, 3, 4}) ++} ++ + func addFakeConn(m *Model, dev protocol.DeviceID) *fakeConnection { + fc := &fakeConnection{id: dev, model: m} + m.AddConnection(fc, protocol.HelloResult{}) +-- +2.18.0 + diff --git a/gnu/packages/syncthing.scm b/gnu/packages/syncthing.scm index 14e83b5861..4c0bceedf6 100644 --- a/gnu/packages/syncthing.scm +++ b/gnu/packages/syncthing.scm @@ -24,6 +24,7 @@ #:use-module (guix download) #:use-module (guix git-download) #:use-module (guix licenses) + #:use-module (gnu packages) #:use-module (gnu packages golang)) (define-public syncthing @@ -35,6 +36,7 @@ (uri (string-append "https://github.com/syncthing/syncthing" "/releases/download/v" version "/syncthing-source-v" version ".tar.gz")) + (patches (search-patches "syncthing-fix-crash.patch")) (sha256 (base32 "0bxkm5jlj6l4gai23bg0y31brr80r9qllh1rdg29pahjn0c2b4ml"))