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Message-ID: <YMqNHnTofj9fR8IJ@mit.edu> Date: Wed, 16 Jun 2021 19:45:34 -0400 From: "Theodore Ts'o" <tytso@....edu> To: Anirudh Rayabharam <mail@...rudhrb.com> Cc: Andreas Dilger <adilger.kernel@...ger.ca>, Dave Kleikamp <shaggy@...tin.ibm.com>, Alex Tomas <alex@...sterfs.com>, Andrew Morton <akpm@...l.org>, gregkh@...uxfoundation.org, linux-kernel-mentees@...ts.linuxfoundation.org, syzbot+2dcfeaf8cb49b05e8f1a@...kaller.appspotmail.com, linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH v2] ext4: fix kernel infoleak via ext4_extent_header On Fri, May 07, 2021 at 12:26:54AM +0530, Anirudh Rayabharam wrote: > Initialize eh_generation of struct ext4_extent_header to prevent leaking > info to userspace. Fixes KMSAN kernel-infoleak bug reported by syzbot at: > http://syzkaller.appspot.com/bug?id=78e9ad0e6952a3ca16e8234724b2fa92d041b9b8 > > Reported-by: syzbot+2dcfeaf8cb49b05e8f1a@...kaller.appspotmail.com > Fixes: a86c61812637 ("[PATCH] ext3: add extent map support") > Signed-off-by: Anirudh Rayabharam <mail@...rudhrb.com> Applied, thanks. - Ted
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