[tracing] POC for a simple attribute based sampler#5
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Can be used to filter out traces based on any attribute present on the span
just1not2
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Aug 8, 2024
Update the dependency and the indirect golang.org/x/net version to align with containerd 1.7 itself, and to prevent a vulnerability being detected. This should not generally be an issue, as the API module is used by containerd 1.7 and up, which already depend on a more current version of these dependencies. full diff: containerd/ttrpc@v1.2.3...v1.2.5 Before this: govulncheck ./... Scanning your code and 251 packages across 13 dependent modules for known vulnerabilities... === Symbol Results === Vulnerability #1: GO-2024-2687 HTTP/2 CONTINUATION flood in net/http More info: https://pkg.go.dev/vuln/GO-2024-2687 Module: golang.org/x/net Found in: golang.org/x/net@v0.21.0 Fixed in: golang.org/x/net@v0.23.0 Example traces found: #1: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.ConnectionError.Error #2: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.ErrCode.String #3: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.FrameHeader.String #4: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.FrameType.String #5: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.Setting.String #6: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.SettingID.String #7: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.StreamError.Error #8: services/version/v1/version_grpc.pb.go:13:2: version.init calls status.init, which eventually calls http2.chunkWriter.Write #9: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.connError.Error #10: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.duplicatePseudoHeaderError.Error #11: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.headerFieldNameError.Error #12: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.headerFieldValueError.Error #13: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.pseudoHeaderError.Error #14: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.writeData.String Your code is affected by 1 vulnerability from 1 module. This scan also found 0 vulnerabilities in packages you import and 3 vulnerabilities in modules you require, but your code doesn't appear to call these vulnerabilities. Use '-show verbose' for more details. After this: govulncheck ./... Scanning your code and 251 packages across 13 dependent modules for known vulnerabilities... === Symbol Results === No vulnerabilities found. Your code is affected by 0 vulnerabilities. This scan also found 0 vulnerabilities in packages you import and 3 vulnerabilities in modules you require, but your code doesn't appear to call these vulnerabilities. Use '-show verbose' for more details. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
jaredledvina
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Aug 29, 2024
Update the dependency and the indirect golang.org/x/net version to align
with containerd itself, and to prevent a vulnerability being detected.
We should keep the versions <= versions used by containerd 1.7 to prevent
forcing users of containerd 1.7 in combination with the latest version
of the API module from having to update all their dependencies, but
this update should likely be fine (and aligns with 1.7).
Before this:
Scanning your code and 254 packages across 15 dependent modules for known vulnerabilities...
=== Symbol Results ===
Vulnerability #1: GO-2024-2687
HTTP/2 CONTINUATION flood in net/http
More info: https://pkg.go.dev/vuln/GO-2024-2687
Module: golang.org/x/net
Found in: golang.org/x/net@v0.21.0
Fixed in: golang.org/x/net@v0.23.0
Example traces found:
#1: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.ConnectionError.Error
#2: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.ErrCode.String
#3: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.FrameHeader.String
#4: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.FrameType.String
#5: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.Setting.String
#6: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.SettingID.String
#7: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.StreamError.Error
#8: services/content/v1/content_ttrpc.pb.go:272:35: content.ttrpccontentClient.Write calls ttrpc.Client.NewStream, which eventually calls http2.chunkWriter.Write
#9: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.connError.Error
#10: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.duplicatePseudoHeaderError.Error
#11: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.headerFieldNameError.Error
#12: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.headerFieldValueError.Error
#13: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.pseudoHeaderError.Error
#14: events/task_fieldpath.pb.go:85:20: events.TaskIO.Field calls fmt.Sprint, which eventually calls http2.writeData.String
Your code is affected by 1 vulnerability from 1 module.
This scan also found 0 vulnerabilities in packages you import and 3
vulnerabilities in modules you require, but your code doesn't appear to call
these vulnerabilities.
Use '-show verbose' for more details.
After this:
govulncheck ./...
Scanning your code and 251 packages across 13 dependent modules for known vulnerabilities...
=== Symbol Results ===
No vulnerabilities found.
Your code is affected by 0 vulnerabilities.
This scan also found 0 vulnerabilities in packages you import and 3
vulnerabilities in modules you require, but your code doesn't appear to call
these vulnerabilities.
Use '-show verbose' for more details.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
jaredledvina
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Sep 12, 2025
`govulncheck -mode=binary` detected the following vulns, but `-mode=source` says "your code doesn't appear to call these vulnerabilities." ``` === Symbol Results === Vulnerability #1: GO-2025-3503 HTTP Proxy bypass using IPv6 Zone IDs in golang.org/x/net More info: https://pkg.go.dev/vuln/GO-2025-3503 Module: golang.org/x/net Found in: golang.org/x/net@v0.33.0 Fixed in: golang.org/x/net@v0.36.0 Vulnerable symbols found: #1: httpproxy.config.useProxy #2: httpproxy.domainMatch.match #3: proxy.Dial #4: proxy.FromEnvironment #5: proxy.FromEnvironmentUsing Use '-show traces' to see the other 3 found symbols Vulnerability #2: GO-2025-3488 Unexpected memory consumption during token parsing in golang.org/x/oauth2 More info: https://pkg.go.dev/vuln/GO-2025-3488 Module: golang.org/x/oauth2 Found in: golang.org/x/oauth2@v0.11.0 Fixed in: golang.org/x/oauth2@v0.27.0 Vulnerable symbols found: #1: jws.Verify Vulnerability #3: GO-2025-3487 Potential denial of service in golang.org/x/crypto More info: https://pkg.go.dev/vuln/GO-2025-3487 Module: golang.org/x/crypto Found in: golang.org/x/crypto@v0.31.0 Fixed in: golang.org/x/crypto@v0.35.0 Vulnerable symbols found: #1: ssh.Client.Dial #2: ssh.Client.DialContext #3: ssh.Client.DialTCP #4: ssh.Client.Listen #5: ssh.Client.ListenTCP Use '-show traces' to see the other 48 found symbols Your code is affected by 3 vulnerabilities from 3 modules. This scan found no other vulnerabilities in packages you import or modules you require. Use '-show verbose' for more details. ``` NOTE: Go version requirement is now bumped up from 1.21 to 1.23 Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
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Can be used to filter out traces based on any attribute present on the span
However it is quite complex to use (shall we OR or AND the different args) and not very efficient in terms of computation (while traces should be sampled quickly. So I will rather expand on julien's nameBased tracer release-1.7.12-dd-imgverify-0...DataDog:containerd:jb/v1.7.12-otel