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| author | Anirudh Rayabharam <mail@anirudhrb.com> | 2021-05-07 00:26:54 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-20 16:22:30 +0200 |
| commit | ce14bff239a107344b153bd6504a2f8165f672e9 (patch) | |
| tree | a494ea9406ea1aed0ae4f18dbe909837beac0ec0 /lib/pm-notifier-error-inject.c | |
| parent | 12b4715523efc6844dc1fb1924441e9b990705fd (diff) | |
ext4: fix kernel infoleak via ext4_extent_header
commit ce3aba43599f0b50adbebff133df8d08a3d5fffe upstream.
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
Cc: stable@kernel.org
Reported-by: syzbot+2dcfeaf8cb49b05e8f1a@syzkaller.appspotmail.com
Fixes: a86c61812637 ("[PATCH] ext3: add extent map support")
Signed-off-by: Anirudh Rayabharam <mail@anirudhrb.com>
Link: https://lore.kernel.org/r/20210506185655.7118-1-mail@anirudhrb.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/pm-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions