linux-ext4 - [Bug 199947] Mounting and operating corrupted ext4 image causes (finite) hangs in kernel space

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Message-ID: <bug-199947-13602-dmXWFQJIYo@https.bugzilla.kernel.org/>
Date:   Wed, 06 Jun 2018 18:50:44 +0000
From:   bugzilla-daemon@...zilla.kernel.org
To:     linux-ext4@...nel.org
Subject: [Bug 199947] Mounting and operating corrupted ext4 image causes
 (finite) hangs in kernel space

https://bugzilla.kernel.org/show_bug.cgi?id=199947

Eric Sandeen (sandeen@...deen.net) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |sandeen@...deen.net
           Assignee|fs_ext4@...nel-bugs.osdl.or |sandeen@...deen.net
                   |g                           |

--- Comment #3 from Eric Sandeen (sandeen@...deen.net) ---
I don't think 1s is considered a hang, it's just doing a slower traversal of a
corrupt directory.

The nonstandard error code is incorrect though, I've sent a patch upstream for
that.

[PATCH] ext4: Reset error code in ext4_find_entry in fallback

When ext4_find_entry() falls back to "searching the old fashioned
way" due to a corrupt dx dir, it needs to reset the error code
to NULL so that the nonstandard ERR_BAD_DX_DIR code isn't returned
to userspace.

https://bugzilla.kernel.org/show_bug.cgi?id=199947

Reported-by: Anatoly Trosinenko <anatoly.trosinenko@...dex.com>
Signed-off-by: Eric Sandeen <sandeen@...hat.com>
---

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