Solution hashes for a vulnerability lies in an external fork

[yashrsharma44]

Describe the bug

Hi Team,

I am playing with the OSV API for checking vulnerabilities in the kernel repositories, and on trying the cli, I got the following results -

(.venv) ➜  git_kernel_vulns git:(master) ✗ curl -d \                                      
  '{"commit": "30e3b4f256b4e366a61658c294f6a21b8626dda7",
    "package": {"name": "github.com/torvalds/linux"}}' \
  "https://api.osv.dev/v1/query" | jq  '.vulns | .[] | .id'
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 5643k  100 5643k  100   108   342k      6  0:00:18  0:00:16  0:00:02 1346k
"CVE-2021-33909"
"CVE-2021-3609"
"CVE-2021-3656"
"CVE-2021-37159"
"CVE-2021-3744"
...

Picking one the vulnerabilities from the output - GSD-2022-1000409, I wanted to check the commit hash which fixes the issue - https://osv.dev/vulnerability/GSD-2022-1000409
The solution fix (0838d6d68182f0b28a5434bc6d50727c4757e35b ) - https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ doesn't lie in the given repository, and on checking the link, I see that it lies in an external fork - https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0838d6d68182f0b28a5434bc6d50727c4757e35b

The commit message itself suggests that the fix is an upstream commit -

Notice: this object is not reachable from any branch.
commit 926fd9f23b27ca6587492c3f58f4c7f4cd01dad5 upstream.

To Reproduce
Provided above
Expected behaviour
The solution fix should lie in the upstream branch(or atleast should be present in the fork)

Screenshots

Additional context

[andrewpollock]

This is one of the points raised in https://github.com/google/osv.dev/blob/master/docs/data_quality.md#precise

I'm not aware of a way to programmatically make the linkage from (in this example) 0838d6d68182f0b28a5434bc6d50727c4757e35b to 926fd9f23b27ca6587492c3f58f4c7f4cd01dad5 and so this is currently a data quality issue on the originating record.

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[yashrsharma44]

I'm not aware of a way to programmatically make the linkage from (in this example) 0838d6d68182f0b28a5434bc6d50727c4757e35b to 926fd9f23b27ca6587492c3f58f4c7f4cd01dad5 and so this is currently a data quality issue on the originating record.

Ohh great, I am glad that is a known issue.

While a rough idea in my mind, would be to map access the git message(maybe by downloading the message) and perform the mapping? But agree, without fetching the commit, it's difficult to get the mapping programmatically.

[github-actions]

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