From 03d6399b0c8217a933e5059027cfdc041258872e Mon Sep 17 00:00:00 2001
From: witchcraze <67056980+witchcraze@users.noreply.github.com>
Date: Tue, 14 Apr 2026 00:31:19 +0900
Subject: [PATCH] fix: update erlang classifier (#4766)

Signed-off-by: witchcraze <witchcraze@gmail.com>
---
 .../cataloger/binary/classifier_cataloger_test.go |  11 +++++++++++
 syft/pkg/cataloger/binary/classifiers.go          |   4 ++++
 .../snippets/erlang/17.5.6.9/linux-amd64/beam.smp | Bin 0 -> 472 bytes
 syft/pkg/cataloger/binary/testdata/config.yaml    |   8 ++++++++
 4 files changed, 23 insertions(+)
 create mode 100644 syft/pkg/cataloger/binary/testdata/classifiers/snippets/erlang/17.5.6.9/linux-amd64/beam.smp

diff --git a/syft/pkg/cataloger/binary/classifier_cataloger_test.go b/syft/pkg/cataloger/binary/classifier_cataloger_test.go
index 2c847837a..95b8487ea 100644
--- a/syft/pkg/cataloger/binary/classifier_cataloger_test.go
+++ b/syft/pkg/cataloger/binary/classifier_cataloger_test.go
@@ -1188,6 +1188,17 @@ func Test_Cataloger_PositiveCases(t *testing.T) {
 				Metadata:  metadata("erlang-alpine-binary"),
 			},
 		},
+		{
+			logicalFixture: "erlang/17.5.6.9/linux-amd64",
+			expected: pkg.Package{
+				Name:      "erlang",
+				Version:   "17.5.6.9",
+				Type:      "binary",
+				PURL:      "pkg:generic/erlang@17.5.6.9",
+				Locations: locations("beam.smp"),
+				Metadata:  metadata("erlang-alpine-binary"),
+			},
+		},
 		{
 			logicalFixture: "swipl/9.3.8/linux-amd64",
 			expected: pkg.Package{
diff --git a/syft/pkg/cataloger/binary/classifiers.go b/syft/pkg/cataloger/binary/classifiers.go
index e9692b3cb..53f902c0d 100644
--- a/syft/pkg/cataloger/binary/classifiers.go
+++ b/syft/pkg/cataloger/binary/classifiers.go
@@ -374,6 +374,10 @@ func DefaultClassifiers() []binutils.Classifier {
 					// [NUL][NUL]26.1.2[NUL][NUL][NUL][NUL][NUL][NUL][NUL]NUL[NUL][NUL]Erlang/OTP
 					`\x00+(?P<version>[0-9]+\.[0-9]+(\.[0-9]+){0,2}(-rc[0-9])?)\x00+Erlang/OTP`,
 				),
+				m.FileContentsVersionMatcher(
+					// Erlang/OTP 17%s [erts-6.4.1.6] [source] [64-bit] [smp:%beu:%beu] [async-threads:%d] [hipe] [kernel-poll:%s][NUL]17.5.6.9[NUL][NUL][NUL]
+					`(?s)Erlang/OTP.{1,150}\x00+(?P<version>[0-9]+\.[0-9]+(\.[0-9]+){0,2}(-rc[0-9])?)\x00+`,
+				),
 			),
 			Package: "erlang",
 			PURL:    mustPURL("pkg:generic/erlang@version"),
diff --git a/syft/pkg/cataloger/binary/testdata/classifiers/snippets/erlang/17.5.6.9/linux-amd64/beam.smp b/syft/pkg/cataloger/binary/testdata/classifiers/snippets/erlang/17.5.6.9/linux-amd64/beam.smp
new file mode 100644
index 0000000000000000000000000000000000000000..70ecff55ff23c5f7afcecd464bc0dd0fa66c8cac
GIT binary patch
literal 472
zcmb78xlY6|6r`Z?S6Eu5Oz?fArv?eS)k<qS&zp!`ioHVH@z;osY=DLWiC4_LnRjSL
zH$aU&xS>kJjHVb9<Qg;0xFHtxFrIR|YC%vMyLpEE)H)_rjg9iI;UpR#yygTN6*wij
zp++{IdqZeop0Q{M7oaJLj7iBDvyJ993XNjd!_PA%4KdLKFC6vC5zD~Is3{Ppg^pe^
zOQO@33Be6WCAkZdYfgiW+(&`XZnwk!k^z6m#CgJT>ig*xuOoExcik_&8&7u+&ySeu
zBH=wOIhCps6|K|(@6&W%0<4V^rSJ098Rok1aNc0mE?ve@=5_(sq`GKUtL^6N$qOta
m^yR#Usf%<#H&j=$Qk7jJ-M+gm7+H=RA3wf$6aRp>-@Bgy9%~~2

literal 0
HcmV?d00001

diff --git a/syft/pkg/cataloger/binary/testdata/config.yaml b/syft/pkg/cataloger/binary/testdata/config.yaml
index 54dfaca3d..1f363bca8 100644
--- a/syft/pkg/cataloger/binary/testdata/config.yaml
+++ b/syft/pkg/cataloger/binary/testdata/config.yaml
@@ -79,6 +79,14 @@ from-images:
     paths:
       - /usr/local/lib/erlang/erts-14.1.1/bin/beam.smp
 
+  - name: erlang
+    version: 17.5.6.9
+    images:
+      - ref: erlang:17.5.6.9@sha256:b4c39d943dfbe0351db06ac50097e4981dce4e3a01c66a1e6a19e6865e6fcb20
+        platform: linux/amd64
+    paths:
+      - /usr/local/lib/erlang/erts-6.4.1.6/bin/beam.smp
+
   - version: 9.3.8
     images:
       - ref: swipl:9.3.8@sha256:6a15e6a03afe943228924a5502ba763e653ff28d9b3391e2b3e1fc3e991f37d4