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(parent: 0e5e811) | patch
f2fs: remove write attribute of main_blkaddr sysfs node
authorDehe Gu <gudehe@huawei.com>
Fri, 3 Jul 2020 09:51:29 +0000 (17:51 +0800)
committerJaegeuk Kim <jaegeuk@kernel.org>
Wed, 8 Jul 2020 17:11:19 +0000 (10:11 -0700)
commitffcde4b29a5f20ddca6fe559b48f345818bf1d91
treefef8377613d93f472079d9618bc4f7f0bdee7867tree | snapshot
parent0e5e81114de1c4ac32e36f057256653a04f27a33commit | diff
f2fs: remove write attribute of main_blkaddr sysfs node

Fuzzing main_blkaddr sysfs node will corrupt this field's value,
causing kernel panic, remove its write attribute to avoid potential
security risk.

[Chao Yu: add description]

Signed-off-by: Dehe Gu <gudehe@huawei.com>
Signed-off-by: Daiyue Zhang <zhangdaiyue1@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
fs/f2fs/sysfs.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git