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Tue, 13 Feb 2024 06:51:03 -0800 (PST) Date: Tue, 13 Feb 2024 06:51:03 -0800 In-Reply-To: <20240213141308.3138-1-n.zhandarovich@fintech.ru> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000fed2a7061144854c@google.com> Subject: Re: [syzbot] [wpan?] KMSAN: uninit-value in ieee802154_hdr_push (2) From: syzbot To: linux-kernel@vger.kernel.org, n.zhandarovich@fintech.ru, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: KMSAN: uninit-value in ieee802154_hdr_push ===================================================== BUG: KMSAN: uninit-value in ieee802154_hdr_push_sechdr net/ieee802154/header_ops.c:54 [inline] BUG: KMSAN: uninit-value in ieee802154_hdr_push+0x971/0xb90 net/ieee802154/header_ops.c:108 ieee802154_hdr_push_sechdr net/ieee802154/header_ops.c:54 [inline] ieee802154_hdr_push+0x971/0xb90 net/ieee802154/header_ops.c:108 ieee802154_header_create+0x9c0/0xc00 net/mac802154/iface.c:396 wpan_dev_hard_header include/net/cfg802154.h:524 [inline] dgram_sendmsg+0xd1e/0x1500 net/ieee802154/socket.c:677 ieee802154_sock_sendmsg+0x96/0xd0 net/ieee802154/socket.c:96 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x30e/0x380 net/socket.c:745 ____sys_sendmsg+0x877/0xb60 net/socket.c:2584 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638 __sys_sendmsg net/socket.c:2667 [inline] __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg net/socket.c:2674 [inline] __x64_sys_sendmsg+0x307/0x4a0 net/socket.c:2674 do_syscall_64+0x76/0x150 entry_SYSCALL_64_after_hwframe+0x6c/0x74 Local variable hdr created at: ieee802154_header_create+0x4e/0xc00 net/mac802154/iface.c:360 wpan_dev_hard_header include/net/cfg802154.h:524 [inline] dgram_sendmsg+0xd1e/0x1500 net/ieee802154/socket.c:677 CPU: 0 PID: 5449 Comm: syz-executor.0 Not tainted 6.8.0-rc4-next-20240213-syzkaller-g46d4e2eb58e1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 ===================================================== Tested on: commit: 46d4e2eb Add linux-next specific files for 20240213 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master console output: https://syzkaller.appspot.com/x/log.txt?x=1553bdec180000 kernel config: https://syzkaller.appspot.com/x/.config?x=e558550134480d4a dashboard link: https://syzkaller.appspot.com/bug?extid=60a66d44892b66b56545 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied.