From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f78.google.com (mail-oo1-f78.google.com [209.85.161.78]) (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 A71783C5DC4 for ; Fri, 3 Apr 2026 16:32:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.78 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775233949; cv=none; b=j6o662EV75PluZQl+K+oIFJi44Z+qwzgipNn5qQjFss1kRXqlF4wa8ek0+Avyuowd479tHYd8YtipBASDtFmX5pGmH9rkDUqshDYfopsBrpMLs9XYUPzX6m0hlkcIzDr4EqCoge6+O5E25n5NZbXt1DZv3b1/HtobqTEQI/rvj0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775233949; c=relaxed/simple; bh=qfr6neH7KOpkhICdsmAGPVUpUAdCWOmTk90/4X7duvc=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=kav2E5pACNl0q6e1pJ9fwbIjsOt9rYr0tVowPjK6lIzz+a5yEH/5fSSJEnmfs3cnVJRigDGDJMejk8vjZlnI4ca7LkGZNRoeARBMZS7xsQ+vwdfwBQpOpnwn3ojdfTKQ8slWBiok7C93QS2mkKmtENmBgOkolQwAMQpdbgmB1iE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.161.78 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oo1-f78.google.com with SMTP id 006d021491bc7-67a1e063795so8411415eaf.1 for ; Fri, 03 Apr 2026 09:32:27 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775233947; x=1775838747; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=WMrjXk9A+5MghAXGyIdAHA6fxy0ZBzM8+MCHu3USr+k=; b=nQQ5V3X+1dJ0kCp8xXy12aRaOqrMahWPIFtT6cALKHLamJ5abTPTjgXQzq6+bSYDAx IORhbQd9SFV3zW1PcatUYqKa3FB9s6AZzoCHxv/2s0Hms1dJJGDblY2z0/IqZ4BctBaC xC+qHgzdA4iCbQejoMSzDLmDli/RK7gPKIexHJY4hih7Z2DTefNLWf4HXr/OsQNm1tDL yw08RG7ZPB2rMzrH6FwHAoc4MYcIrPTySzB9NqnZXpu7Y8lFZotgSodsX+7N2lGp6qOh yzNZfrdktJDzBf6Rp1/wll9+Kb2Icsd87XAjHzXlwmbnZXZtBUeONGNygTwTyoD8OLVX gAhA== X-Forwarded-Encrypted: i=1; AJvYcCUAWwjL6dRyUvHL+epG2kRjtXyZnq6WKn72l6AdBLWN2XRS7rK4Tqsn1R7iyXntB/fw9lXW8fTGezK2hjk=@vger.kernel.org X-Gm-Message-State: AOJu0YxalFICEbiPbMm43d/sKAECpd+VROuKd3r1J8aAiBENQ5WJBJiV 48D9DZiWl/83tYnFgnuuuH1fMxbJK9gqCr5Okhhu9bkSRXfYu0nrSLp+DRW33dEzlDXNFB+0jCl opPWKMw/SEkxQ9qNPbAnUB1c+YDc6KavC0FF/Yufgt6jX207ZOcjr/qN9hwc= Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a4a:d348:0:b0:683:121c:5aa with SMTP id 006d021491bc7-683121c0694mr467172eaf.10.1775233946863; Fri, 03 Apr 2026 09:32:26 -0700 (PDT) Date: Fri, 03 Apr 2026 09:32:26 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69cfeb9a.050a0220.2dbe29.0012.GAE@google.com> Subject: [syzbot] [crypto?] general protection fault in aead_recvmsg From: syzbot To: davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: d8a9a4b11a13 Merge tag 'v7.0-rc6-smb3-client-fix' of git:/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17649d02580000 kernel config: https://syzkaller.appspot.com/x/.config?x=6754c86e8d9e4c91 dashboard link: https://syzkaller.appspot.com/bug?extid=aa11561819dc42ebbc7c compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17b0946a580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17eb8dda580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/ecb473e5a4ef/disk-d8a9a4b1.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/eaedee0e571e/vmlinux-d8a9a4b1.xz kernel image: https://storage.googleapis.com/syzbot-assets/e2ba27a7ba82/bzImage-d8a9a4b1.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+aa11561819dc42ebbc7c@syzkaller.appspotmail.com trusted_key: syz.0.17 sent an empty control message without MSG_MORE. Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 UID: 0 PID: 5987 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 RIP: 0010:memcpy_sglist+0x420/0x730 crypto/scatterwalk.c:177 Code: e8 b5 b9 52 fd f6 c3 01 0f 85 0a 01 00 00 e8 c7 b4 52 fd 4c 89 f3 eb 07 e8 bd b4 52 fd 31 db 4c 8d 7b 08 4c 89 f8 48 c1 e8 03 <0f> b6 04 28 84 c0 0f 85 1d 02 00 00 41 8b 07 89 44 24 04 49 8d 7d RSP: 0018:ffffc900035a7698 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffff888026dc1e80 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffff88802543b200 R14: ffff888033865080 R15: 0000000000000008 FS: 000055556d3e1500(0000) GS:ffff888125457000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000004580 CR3: 0000000035e06000 CR4: 00000000003526f0 Call Trace: _aead_recvmsg crypto/algif_aead.c:186 [inline] aead_recvmsg+0x719/0x1030 crypto/algif_aead.c:240 sock_recvmsg_nosec+0x10c/0x140 net/socket.c:1078 ____sys_recvmsg+0x3e3/0x4a0 net/socket.c:2810 ___sys_recvmsg+0x215/0x590 net/socket.c:2854 do_recvmmsg+0x334/0x800 net/socket.c:2949 __sys_recvmmsg net/socket.c:3023 [inline] __do_sys_recvmmsg net/socket.c:3046 [inline] __se_sys_recvmmsg net/socket.c:3039 [inline] __x64_sys_recvmmsg+0x198/0x250 net/socket.c:3039 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f726eb9c819 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc9ba0f7c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f726ee15fa0 RCX: 00007f726eb9c819 RDX: 0000000000000002 RSI: 0000200000004580 RDI: 0000000000000004 RBP: 00007f726ec32c91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000060 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f726ee15fac R14: 00007f726ee15fa0 R15: 00007f726ee15fa0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:memcpy_sglist+0x420/0x730 crypto/scatterwalk.c:177 Code: e8 b5 b9 52 fd f6 c3 01 0f 85 0a 01 00 00 e8 c7 b4 52 fd 4c 89 f3 eb 07 e8 bd b4 52 fd 31 db 4c 8d 7b 08 4c 89 f8 48 c1 e8 03 <0f> b6 04 28 84 c0 0f 85 1d 02 00 00 41 8b 07 89 44 24 04 49 8d 7d RSP: 0018:ffffc900035a7698 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffff888026dc1e80 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffff88802543b200 R14: ffff888033865080 R15: 0000000000000008 FS: 000055556d3e1500(0000) GS:ffff888125557000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055607067bee0 CR3: 0000000035e06000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: e8 b5 b9 52 fd call 0xfd52b9ba 5: f6 c3 01 test $0x1,%bl 8: 0f 85 0a 01 00 00 jne 0x118 e: e8 c7 b4 52 fd call 0xfd52b4da 13: 4c 89 f3 mov %r14,%rbx 16: eb 07 jmp 0x1f 18: e8 bd b4 52 fd call 0xfd52b4da 1d: 31 db xor %ebx,%ebx 1f: 4c 8d 7b 08 lea 0x8(%rbx),%r15 23: 4c 89 f8 mov %r15,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 0f 85 1d 02 00 00 jne 0x253 36: 41 8b 07 mov (%r15),%eax 39: 89 44 24 04 mov %eax,0x4(%rsp) 3d: 49 rex.WB 3e: 8d .byte 0x8d 3f: 7d .byte 0x7d --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup