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Tetsuo Handa
authored
syzbot is reporting uninit-value at shrinker_alloc(), for commit 307becec ("mm: shrinker: add a secondary array for shrinker_info::{map, nr_deferred}") which assumed that the ->unit was allocated with __GFP_ZERO forgot to replace kvmalloc_node() in expand_one_shrinker_info() with kvzalloc_node(). Link: https://lkml.kernel.org/r/9226cc0a-10e0-4489-80c5-58c3b5b4359c@I-love.SAKURA.ne.jp Reported-by:syzbot <syzbot+1e0ed05798af62917464@syzkaller.appspotmail.com> Closes: https://syzkaller.appspot.com/bug?extid=1e0ed05798af62917464 Fixes: 307becec ("mm: shrinker: add a secondary array for shrinker_info::{map, nr_deferred}") Signed-off-by:
Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by:
Qi Zheng <zhengqi.arch@bytedance.com> Cc: Muchun Song <songmuchun@bytedance.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org>
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