linux-ext4 - [Bug 205609] New: Multiple bugs in __ext4_expand_extra

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Message-ID: <bug-205609-13602@https.bugzilla.kernel.org/>
Date:   Wed, 20 Nov 2019 17:27:02 +0000
From:   bugzilla-daemon@...zilla.kernel.org
To:     linux-ext4@...r.kernel.org
Subject: [Bug 205609] New: Multiple bugs in __ext4_expand_extra_isize (OOB
 write and UAF write)

https://bugzilla.kernel.org/show_bug.cgi?id=205609

            Bug ID: 205609
           Summary: Multiple bugs in __ext4_expand_extra_isize (OOB write
                    and UAF write)
           Product: File System
           Version: 2.5
    Kernel Version: 5.x
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: ext4
          Assignee: fs_ext4@...nel-bugs.osdl.org
          Reporter: tristmd@...il.com
        Regression: No

BUG #1 - UAF write in __ext4_expand_extra_isize
===

KASAN: use-after-free in __ext4_expand_extra_isize+0x182/0x250
fs/ext4/inode.c:5924
Write of size 189

BUG #2 - OOB write
===

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