From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f72.google.com (mail-oo1-f72.google.com [209.85.161.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2E3CC1DED63 for ; Sat, 13 Dec 2025 21:28:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765661287; cv=none; b=tQoEUTK7YkgSbcGUG3Vg0m71IOSQLRFixhEpG4a1vNm5zaCACe9VgMTLtq2zJXJOSrCp0iNVBK+kVRVWcnB3nTYMjcpMcCXNZGtvyKlRuffnus7P5G5t074B5VnsuCz5e6fcj2wbsMp6tkQZZkxHtW6+3cdYz4GrXk0xqZZSRKo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765661287; c=relaxed/simple; bh=0U9en6nGSv/t6XC0zXZ00C6v4WXTLP3GgMO0HkZBakg=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=sHC78KVpXLMwqtBxefMwU7FSihWRbTOqhMCQRPtHegzr1Qmbf3ohulmuGkyky73wJpxumkVA9v9uhnTHG/NxQHCL7yBAx9zAGnGoLgUaYjQXnZKyKVki5LcdoX4pyEVPWdY11zjyaxhvLF58WTvLMpZ/NyAFvNm7CtXqUEZ95Tk= ARC-Authentication-Results:i=1; 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AJvYcCUSsOphKfhyqgiZ4lSGn+g8P+OGaTWJ0ieQ2gjSOR90gS7Yr7LAQ8VeC4qQGRGOvXL3BxaBgPRjapPmcRI=@vger.kernel.org X-Gm-Message-State: AOJu0Yy6/WmU1pjnBBBF6z5jwNmZrTGlFjyvKt0Qg31JHtzrDjkN2RgM 8sQ3oNeIO7RUAxAP2ABc3pADXW9ni0ujf2Q9IyPm4dPdhQSpKVe8vKh1sIqy3/2i6o83vymdAW6 EUn+Uypb12YT7AWliT5TcHesfWzNmCTdnvO5uMrzk1EdisXW6RA98PIO6P+w= X-Google-Smtp-Source: AGHT+IGNxlenv89aYm7A8vAkomfu25uTfW5HPoFm+WayEjv3/rFvnMEo7DhdsuZbAIpqIVDshvPBTfU1/iFlLyOJ8nkmYdtrCQEP Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:290e:b0:659:9a49:8e6e with SMTP id 006d021491bc7-65b45283694mr3170613eaf.62.1765661285264; Sat, 13 Dec 2025 13:28:05 -0800 (PST) Date: Sat, 13 Dec 2025 13:28:05 -0800 In-Reply-To: <20251213203625.1101692-2-katharasasikumar007@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <693dda65.a70a0220.104cf0.0317.GAE@google.com> Subject: Re: [syzbot] [wpan?] KMSAN: uninit-value in ieee802154_hdr_push (2) From: syzbot To: katharasasikumar007@gmail.com, linux-kernel@vger.kernel.org, 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+0x9ac/0xa30 net/ieee802154/header_ops.c:108 ieee802154_hdr_push_sechdr net/ieee802154/header_ops.c:54 [inline] ieee802154_hdr_push+0x9ac/0xa30 net/ieee802154/header_ops.c:108 ieee802154_header_create+0x812/0xb60 net/mac802154/iface.c:402 wpan_dev_hard_header include/net/cfg802154.h:525 [inline] dgram_sendmsg+0xb40/0x16d0 net/ieee802154/socket.c:677 ieee802154_sock_sendmsg+0x92/0xd0 net/ieee802154/socket.c:96 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x333/0x3d0 net/socket.c:742 ____sys_sendmsg+0x7f5/0xcf0 net/socket.c:2592 ___sys_sendmsg+0x271/0x3b0 net/socket.c:2646 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2683 [inline] __se_sys_sendmsg net/socket.c:2681 [inline] __x64_sys_sendmsg+0x211/0x3e0 net/socket.c:2681 x64_sys_call+0x1c60/0x3e70 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd9/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Uninit was stored to memory at: ieee802154_hdr_push_sechdr net/ieee802154/header_ops.c:54 [inline] ieee802154_hdr_push+0x9a5/0xa30 net/ieee802154/header_ops.c:108 ieee802154_header_create+0x812/0xb60 net/mac802154/iface.c:402 wpan_dev_hard_header include/net/cfg802154.h:525 [inline] dgram_sendmsg+0xb40/0x16d0 net/ieee802154/socket.c:677 ieee802154_sock_sendmsg+0x92/0xd0 net/ieee802154/socket.c:96 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x333/0x3d0 net/socket.c:742 ____sys_sendmsg+0x7f5/0xcf0 net/socket.c:2592 ___sys_sendmsg+0x271/0x3b0 net/socket.c:2646 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2683 [inline] __se_sys_sendmsg net/socket.c:2681 [inline] __x64_sys_sendmsg+0x211/0x3e0 net/socket.c:2681 x64_sys_call+0x1c60/0x3e70 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd9/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Local variable hdr created at: ieee802154_header_create+0x4e/0xb60 net/mac802154/iface.c:366 wpan_dev_hard_header include/net/cfg802154.h:525 [inline] dgram_sendmsg+0xb40/0x16d0 net/ieee802154/socket.c:677 CPU: 1 UID: 0 PID: 6600 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(none) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 ===================================================== Tested on: commit: 4a298a43 Merge tag 'smp-urgent-2025-12-12' of git://gi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=118609c2580000 kernel config: https://syzkaller.appspot.com/x/.config?x=47c3d24c6e93e95d dashboard link: https://syzkaller.appspot.com/bug?extid=60a66d44892b66b56545 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=17099e1a580000