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authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2024-01-03 10:52:22 +0900
committerAndrew Morton <akpm@linux-foundation.org>2024-01-05 09:58:32 -0800
commit7fba9420b726561966e1671004df60a08b39beb3 (patch)
treeeca181f2b279f9b10c5aa5b9f698b551e9a1f1a1 /CREDITS
parent5b8fbf50a54b02e09eb64679defdebd4bc7dfe8a (diff)
mm: shrinker: use kvzalloc_node() from expand_one_shrinker_info()
syzbot is reporting uninit-value at shrinker_alloc(), for commit 307bececcd12 ("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: 307bececcd12 ("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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