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Kernel: Return -ENOTBLK for non-block device Ext2FS mount source

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When mounting an Ext2FS, a block device source is required. All other
filesystem types are unaffected, as most of them ignore the source file
descriptor anyway.

Fixes #5153.
This commit is contained in:
Linus Groh 2021-01-28 23:54:29 +01:00 • committed by Andreas Kling
parent b7b09470ca
commit dbbc378fb2
2 changed files with 4 additions and 0 deletions
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2
Base/usr/share/man/man2/mount.md
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@ -90,6 +90,8 @@ launch the initial userspace process.
file-backed filesystem (and not a pseudo filesystem), or `MS_BIND` is
specified in flags.
* `ENOTDIR`: If `target` is not a directory.
* `ENOTBLK`: If the `source_fd` is not a block device, but one is required (i.e.
when `fs_type` is `Ext2FS`)
All of the usual path resolution errors may also occur.