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Message-Id: <20120920012111.5D7DA11FAE2@bugzilla.kernel.org> Date: Thu, 20 Sep 2012 01:21:11 +0000 (UTC) From: bugzilla-daemon@...zilla.kernel.org To: linux-ext4@...r.kernel.org Subject: [Bug 47731] Null pointer dereference at strchr https://bugzilla.kernel.org/show_bug.cgi?id=47731 Theodore Tso <tytso@....edu> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tytso@....edu --- Comment #1 from Theodore Tso <tytso@....edu> 2012-09-20 01:21:10 --- Is this repeatable? I'm having a lot of trouble figuring out the stack trace, since strchr isn't used anywhere in the code path involved with printing the ext4 mount options while returning the contents of /proc/mounts (which is obviously what is going on). The only strchr that looks even vaguely possible is the one used by seq_escape() in fs/seq_file, which is called by mangle() and which is called by show_vfsmnt() in fs/namespace.c. But the stack trace doesn't look consistent with that, either. Part of the problem is between the inline functions, and the function pointers used by show_vfsmnt, the stack dump in the OOPS message can be quite misleading. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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