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AJvYcCW5srUxQGH143wC+vCRtujvobvvBsT9jhYFx7AppENbHiXBoeKJBIgU1eG/HHueaOrQd2U=@vger.kernel.org X-Gm-Message-State: AOJu0YzQ7v4EtU0ycK0D0l6AbSFmTM4vpz+qQn0RaISFygzVj4m9RBUB gvokq43hXCt6b60Wb1M9L5Dp7D6DU6kE7Z/Gsmh1TRnb1Z8zVbN/2Oqji1Gd4SBWeYIQQfgeqdo eIuh1tI+3wHIeLktKS2ob168I1sl7PsGJtBMdI1JgDDt6x5Og2/SnGNuKSLE= X-Google-Smtp-Source: AGHT+IEfhL5kxH+ViRn+tjSPehb7rvgtjFomaPJY2Ou1a+LpGpm0byaDKQUUxSxBQ91TiRJ+aGH7Z/6kNNBRvcF/PmYwOB1Je311 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:6b81:b0:881:419d:4a31 with SMTP id ca18e2360f4ac-8816830d61bmr1261736839f.3.1754284112354; Sun, 03 Aug 2025 22:08:32 -0700 (PDT) Date: Sun, 03 Aug 2025 22:08:32 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68904050.050a0220.7f033.0001.GAE@google.com> Subject: [syzbot] [bpf?] WARNING in do_misc_fixups From: syzbot To: andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, eddyz87@gmail.com, haoluo@google.com, john.fastabend@gmail.com, jolsa@kernel.org, kpsingh@kernel.org, linux-kernel@vger.kernel.org, martin.lau@linux.dev, sdf@fomichev.me, song@kernel.org, syzkaller-bugs@googlegroups.com, yonghong.song@linux.dev Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: a6923c06a3b2 Merge tag 'bpf-fixes' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1561dcf0580000 kernel config: https://syzkaller.appspot.com/x/.config?x=f89bb9497754f485 dashboard link: https://syzkaller.appspot.com/bug?extid=a9ed3d9132939852d0df compiler: aarch64-linux-gnu-gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=165d0aa2580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=117bd834580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/fa3fbcfdac58/non_bootable_disk-a6923c06.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/9862ca8219e0/vmlinux-a6923c06.xz kernel image: https://storage.googleapis.com/syzbot-assets/042ebe320cfd/Image-a6923c06.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a9ed3d9132939852d0df@syzkaller.appspotmail.com ------------[ cut here ]------------ verifier bug: not inlined functions bpf_probe_read_kernel_str#115 is missing func(1) WARNING: CPU: 1 PID: 3594 at kernel/bpf/verifier.c:22838 do_misc_fixups+0x1784/0x1ab4 kernel/bpf/verifier.c:22838 Modules linked in: CPU: 1 UID: 0 PID: 3594 Comm: syz.2.17 Not tainted 6.16.0-syzkaller-11105-ga6923c06a3b2 #0 PREEMPT Hardware name: linux,dummy-virt (DT) pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : do_misc_fixups+0x1784/0x1ab4 kernel/bpf/verifier.c:22838 lr : do_misc_fixups+0x1784/0x1ab4 kernel/bpf/verifier.c:22838 sp : ffff80008936b9a0 x29: ffff80008936b9a0 x28: f5ff8000832f5000 x27: 000000000000000a x26: f8f0000007ba8000 x25: 0000000000000000 x24: f8f0000007bae200 x23: 000000000000f0ff x22: 000000000000000a x21: f8f0000007bae128 x20: f8f0000007ba8aa8 x19: ffff80008243e828 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff800081b73b80 x14: 0000000000000342 x13: 0000000000000000 x12: 0000000000000002 x11: 00000000000000c0 x10: 646e0773d90f24cc x9 : 73727a981a23afd7 x8 : fcf0000007bb36f8 x7 : 0000000000000190 x6 : 0000003978391654 x5 : 0000000000000001 x4 : fbffff3fffffffff x3 : 000000000000ffff x2 : 0000000000000000 x1 : 0000000000000000 x0 : fcf0000007bb2500 Call trace: do_misc_fixups+0x1784/0x1ab4 kernel/bpf/verifier.c:22838 (P) bpf_check+0x1308/0x2a8c kernel/bpf/verifier.c:24739 bpf_prog_load+0x634/0xb74 kernel/bpf/syscall.c:2979 __sys_bpf+0x2e0/0x1a3c kernel/bpf/syscall.c:6029 __do_sys_bpf kernel/bpf/syscall.c:6139 [inline] __se_sys_bpf kernel/bpf/syscall.c:6137 [inline] __arm64_sys_bpf+0x24/0x34 kernel/bpf/syscall.c:6137 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x48/0x110 arch/arm64/kernel/syscall.c:49 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:132 do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:151 el0_svc+0x34/0x10c arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0xa0/0xe4 arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x1a4/0x1a8 arch/arm64/kernel/entry.S:596 ---[ end trace 0000000000000000 ]--- --- 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