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Bug 2219392

Summary:	Bad magic format `version %#x (MVP)' (bad format char: #) for wasm files
Product:	Red Hat Enterprise Linux 9	Reporter:	Paul Dwyer <pdwyer>
Component:	file	Assignee:	Vincent Mihalkovič <vmihalko>
Status:	CLOSED ERRATA	QA Contact:	Karel Volný <kvolny>
Severity:	high	Docs Contact:
Priority:	urgent
Version:	9.2	CC:	fkrska, fsumsal, kdudka, kvolny, lzaoral
Target Milestone:	rc	Keywords:	Triaged, ZStream
Target Release:	---	Flags:	pm-rhel: mirror+
Hardware:	Unspecified
OS:	Linux
Whiteboard:
Fixed In Version:	file-5.39-13.el9	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	2221659 (view as bug list)		Environment:
Last Closed:	2023-11-07 08:55:56 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2221659

Description Paul Dwyer 2023-07-03 12:43:42 UTC

Description of problem:
file cannot identify wasm (Web Assembly files)

Version-Release number of selected component (if applicable):
file-5.39-12.el9.x86_64

How reproducible:
always

Steps to Reproduce:
1. download a sample wasm file e.g.
curl --max-time 60 -s -H "Accept:application/vnd.github.v3.raw" "https://api.github.com/repos/mozilla/source-map/contents/lib/mappings.wasm" -O
2. file ./mappings.wasm

Actual results:
./mappings.wasm: ERROR: Bad magic format `version %#x (MVP)' (bad format char: #)

Expected results:
Not to error

RHEL8 (file-5.33-8.el8.x86_64) produces the following but this does not look quite right either
$ file mappings.wasm 
mappings.wasm: , created: Fri Jul 10 18:08:00 2037, modified: Tue Apr 20 16:29:51 2021

Fedora 38 (file-5.44-3.fc38.x86_64) produces the following output
$ file mappings.wasm 
mappings.wasm: WebAssembly (wasm) binary module version 0x1 (MVP)

Additional info:
Problem looks like the reported upstream issue, fixed in 5.40, however I cannot see the fix to test.

https://bugs.astron.com/view.php?id=170

Comment 16 errata-xmlrpc 2023-11-07 08:55:56 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (file bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2023:6693