linux-kernel - Re: [syzbot] Re: [syzbot] [crypto?] KMSAN: uninit-value in __crc32c_le

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Message-ID: <68090822.050a0220.dd94f.01f1.GAE@google.com>
Date: Wed, 23 Apr 2025 08:32:50 -0700
From: syzbot <syzbot+549710bad9c798e25b15@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org
Subject: Re: [syzbot] Re: [syzbot] [crypto?] KMSAN: uninit-value in
 __crc32c_le_base (4)

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Subject: Re: [syzbot] [crypto?] KMSAN: uninit-value in __crc32c_le_base (4)
Author: richard120310@...il.com

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 614da38e2f7a

Signed-off-by: I Hsin Cheng <richard120310@...il.com>
---
 fs/bcachefs/btree_io.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/bcachefs/btree_io.c b/fs/bcachefs/btree_io.c
index debb0edc3455..dc00c5273ffe 100644
--- a/fs/bcachefs/btree_io.c
+++ b/fs/bcachefs/btree_io.c
@@ -115,7 +115,7 @@ static void *btree_bounce_alloc(struct bch_fs *c, size_t size,
 	BUG_ON(size > c->opts.btree_node_size);
 
 	*used_mempool = false;
-	p = kvmalloc(size, __GFP_NOWARN|GFP_NOWAIT);
+	p = kvzalloc(size, __GFP_NOWARN|GFP_NOWAIT);
 	if (!p) {
 		*used_mempool = true;
 		p = mempool_alloc(&c->btree_bounce_pool, GFP_NOFS);
-- 
2.43.0