Christopher Angelo PhillipsandAlex Goodman f15c3343e2 Pin Gguff lib to prevent dropping packages (#5447)
* test: catalog GGUF models larger than the header

gguf-parser-go v0.26.3+ rejects a header whose tensors declare more data than follows it. Syft parses only a 50 MB copy of each model, so any larger model is dropped.

Signed-off-by: Christopher Phillips <32073428+spiffcs@users.noreply.github.com>

* fix: fix parser with rollback and verify with test

Signed-off-by: Christopher Phillips <32073428+spiffcs@users.noreply.github.com>

* fix: bound GGUF tensor info before the parser reads it

The header pre-scan stopped after the metadata KVs and left tensor infos to gguf-parser-go. Older releases of the library allocate whatever length a tensor name declares, so a tiny file could force a multi-GB allocation, or a fatal out of memory that panic recovery can't catch.

- tensor names are bounded like metadata keys (non-empty, length limit, shared string budget)
- dimension count is capped at `GGML_MAX_DIMS`
- a tensor count larger than the header now fails at EOF in the pre-scan

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* fix: give the GGUF header copy the model's real size

The cataloger copies at most 50 MB of a model and parses that copy. Newer gguf-parser-go releases check the tensor data the header declares against the file size, so the truncated copy of any larger model was rejected.

- after the header is validated, the copy is extended to the size the resolver reports for the model, leaving the tail as a hole the parser never reads
- sources that report no size (OCI model artifacts today) keep the old behavior

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* chore(deps): restore gguf-parser-go v0.26.4

The header copy now carries the model's real size, so the pin to v0.26.0 and its dependabot ignore are no longer needed. This also brings back upstream's string and array length bounds, and the library's own `IsNumeric`.

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* fix: keep the extended GGUF header copy sparse on Windows

NTFS reserves disk for the full length of a file extended with truncate unless the file is marked sparse, so cataloging a large model on Windows reserved the model's size in the temp dir until cleanup.

- the header copy is marked sparse (`FSCTL_SET_SPARSE`) before it is extended
- if the filesystem can't make it sparse (FAT32, exFAT), the copy is not extended, and models larger than it fail to parse as before
- `golang.org/x/sys` moves from an indirect to a direct dependency

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

---------

Signed-off-by: Christopher Phillips <32073428+spiffcs@users.noreply.github.com>
Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>
Co-authored-by: Alex Goodman <wagoodman@users.noreply.github.com>
2026-10-19 14:40:43 -04:00
2025-12-17 18:00:38 +00:00
2020-06-24 14:37:00 -04:00
2026-05-18 11:59:55 -04:00
2024-10-11 05:17:01 -04:00

Cute pink owl syft logo

Syft

A CLI tool and Go library for generating a Software Bill of Materials (SBOM) from container images and filesystems. Exceptional for vulnerability detection when used with a scanner like Grype.

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syft-demo

Features

Tip

New to Syft? Check out the Getting Started guide for a walkthrough!

Installation

The quickest way to get up and going:

curl -sSfL https://get.anchore.io/syft | sudo sh -s -- -b /usr/local/bin

Tip

See Installation docs for more ways to get Syft, including Homebrew, Docker, Scoop, Chocolatey, Nix, and more!

The basics

See the packages within a container image or directory:

# container image
syft alpine:latest

# directory
syft ./my-project

To get an SBOM, specify one or more output formats:

# SBOM to stdout
syft <image> -o cyclonedx-json

# Multiple SBOMs to files
syft <image> -o spdx-json=./spdx.json -o cyclonedx-json=./cdx.json

Local containers-storage images

On Linux, syft can scan images from a local containers-storage store (e.g. built with Buildah or Podman) when asked explicitly; plain image references never look there:

syft --from containers-storage localhost/myimage:latest

# rootless stores must be read from inside the builder's user namespace
podman unshare syft --from containers-storage localhost/myimage:latest

This is included in the Linux release binaries. When building from source, add -tags containers_image_openpgp,exclude_graphdriver_btrfs.

Tip

Check out the Getting Started guide to explore all of the capabilities and features.

Want to know all of the ins-and-outs of Syft? Check out the CLI docs, configuration docs, and JSON schema.

Contributing

We encourage users to help make these tools better by submitting issues when you find a bug or want a new feature. Check out our contributing overview and developer-specific documentation if you are interested in providing code contributions.

Syft development is sponsored by Anchore, and is released under the Apache-2.0 License. The Syft logo by Anchore is licensed under CC BY 4.0

For commercial support options with Syft or Grype, please contact Anchore.

Come talk to us!

The Syft Team holds regular community meetings online. All are welcome to join to bring topics for discussion.

S
Description
A CLI tool and Go library for generating a Software Bill of Materials (SBOM) from container images and filesystems.
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