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panic: runtime error on iplocation.mmdb #33

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RandomUser1215R opened this issue Mar 29, 2024 · 3 comments
Open

panic: runtime error on iplocation.mmdb #33

RandomUser1215R opened this issue Mar 29, 2024 · 3 comments

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@RandomUser1215R
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RandomUser1215R commented Mar 29, 2024

Hello,
I am running errors using mmdbctl_1.4.4_linux_386 verify with iplocation.mmdb (e.g. standard_location.mmdb)
Maybe it's related to the important size of the mmdb ?

./mmdbctl_1.4.4_linux_386 verify iplocation.mmdb
panic: runtime error: index out of range [654620380] with length 654620376

goroutine 1 [running]:
github.com/oschwald/maxminddb-golang.nodeReader32.readRight(...)
        /home/runner/go/pkg/mod/github.com/oschwald/[email protected]/node.go:54
github.com/oschwald/maxminddb-golang.(*Networks).Next(0x9c50090)
        /home/runner/go/pkg/mod/github.com/oschwald/[email protected]/traverse.go:142 +0x195
github.com/oschwald/maxminddb-golang.(*verifier).verifySearchTree(0x9c56f08)
        /home/runner/go/pkg/mod/github.com/oschwald/[email protected]/verifier.go:106 +0x7e
github.com/oschwald/maxminddb-golang.(*verifier).verifyDatabase(0x9c56f08)
        /home/runner/go/pkg/mod/github.com/oschwald/[email protected]/verifier.go:90 +0x25
github.com/oschwald/maxminddb-golang.(*Reader).Verify(0x9c00180)
        /home/runner/go/pkg/mod/github.com/oschwald/[email protected]/verifier.go:21 +0x51
github.com/ipinfo/mmdbctl/lib.CmdVerify({0x0}, {0x9c10438, 0x1, 0x1}, 0x825e31c)
        /home/runner/work/mmdbctl/mmdbctl/lib/cmd_verify.go:49 +0x142
main.cmdVerify()
        /home/runner/work/mmdbctl/mmdbctl/cmd_verify.go:35 +0x100
main.main()
        /home/runner/work/mmdbctl/mmdbctl/main.go:42 +0x141
@curious-bug
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I've run into the same error message.
Different index number (215694220) but the value is off by 4 as well (length 215694216)

@oschwald
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This issue was fixed in this commit in the underlying database reader. The bug was caused by integer overflow when running on 32-bit architectures.

Unless you specifically need 32-bit compatibility, I recommend using the amd64 binary available on the releases page. The 386 (32-bit) executable is limited to 4GB of addressable memory and may encounter other memory-related issues.

@curious-bug
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We switched to the 64 bit release of 1.4.6 and the issue is resolved, thank you

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