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Message-ID: <0000000000004792a90615a1dde0@google.com> Date: Mon, 08 Apr 2024 20:53:26 -0700 From: syzbot <syzbot+838346b979830606c854@...kaller.appspotmail.com> To: andrii@...nel.org, ast@...nel.org, bpf@...r.kernel.org, daniel@...earbox.net, eddyz87@...il.com, haoluo@...gle.com, john.fastabend@...il.com, jolsa@...nel.org, kpsingh@...nel.org, linux-kernel@...r.kernel.org, martin.lau@...ux.dev, sdf@...gle.com, song@...nel.org, syzkaller-bugs@...glegroups.com, yonghong.song@...ux.dev Subject: [syzbot] [bpf?] BUG: unable to handle kernel paging request in bpf_prog_ADDR (2) Hello, syzbot found the following issue on: HEAD commit: fe46a7dd189e Merge tag 'sound-6.9-rc1' of git://git.kernel.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=12596223180000 kernel config: https://syzkaller.appspot.com/x/.config?x=4d90a36f0cab495a dashboard link: https://syzkaller.appspot.com/bug?extid=838346b979830606c854 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=134ecbb5180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=141a8b3d180000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/f6c04726a2ae/disk-fe46a7dd.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/09c26ce901ea/vmlinux-fe46a7dd.xz kernel image: https://storage.googleapis.com/syzbot-assets/134acf7f5322/bzImage-fe46a7dd.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+838346b979830606c854@...kaller.appspotmail.com BUG: unable to handle page fault for address: 0000001000000112 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 800000002e7b1067 P4D 800000002e7b1067 PUD 0 Oops: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 5060 Comm: syz-executor351 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:bpf_prog_a8e24a805b35c61b+0x19/0x1e Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc f3 0f 1e fa 0f 1f 44 00 00 66 90 55 48 89 e5 f3 0f 1e fa 31 c0 48 8b 7f 18 <8b> 7f 00 c9 c3 cc cc cc cc cc cc 40 03 00 00 cc cc cc cc cc cc cc RSP: 0018:ffffc90003b07b30 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffc90000ace048 RCX: ffff88802aa89e00 RDX: 0000000000000000 RSI: ffffc90000ace048 RDI: 0000001000000112 RBP: ffffc90003b07b30 R08: ffffffff81bf633c R09: 1ffffffff2595ca0 R10: dffffc0000000000 R11: ffffffffa000095c R12: ffffc90000ace030 R13: ffff88802ac3ae28 R14: dffffc0000000000 R15: ffff88802ac3ae28 FS: 000055558f759380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001000000112 CR3: 0000000077cfa000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] bpf_prog_run_array_cg kernel/bpf/cgroup.c:51 [inline] __cgroup_bpf_run_filter_setsockopt+0x6fa/0x1040 kernel/bpf/cgroup.c:1830 do_sock_setsockopt+0x6b4/0x720 net/socket.c:2293 __sys_setsockopt+0x1ae/0x250 net/socket.c:2334 __do_sys_setsockopt net/socket.c:2343 [inline] __se_sys_setsockopt net/socket.c:2340 [inline] __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7fb234535cc9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 18 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd33db0138 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb234535cc9 RDX: 0000000000000010 RSI: 0000000000000112 RDI: 0000000000000007 RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000055558f759338 R13: 0000000000000010 R14: 0000000000000000 R15: 0000000000000000 </TASK> Modules linked in: CR2: 0000001000000112 ---[ end trace 0000000000000000 ]--- RIP: 0010:bpf_prog_a8e24a805b35c61b+0x19/0x1e Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc f3 0f 1e fa 0f 1f 44 00 00 66 90 55 48 89 e5 f3 0f 1e fa 31 c0 48 8b 7f 18 <8b> 7f 00 c9 c3 cc cc cc cc cc cc 40 03 00 00 cc cc cc cc cc cc cc RSP: 0018:ffffc90003b07b30 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffc90000ace048 RCX: ffff88802aa89e00 RDX: 0000000000000000 RSI: ffffc90000ace048 RDI: 0000001000000112 RBP: ffffc90003b07b30 R08: ffffffff81bf633c R09: 1ffffffff2595ca0 R10: dffffc0000000000 R11: ffffffffa000095c R12: ffffc90000ace030 R13: ffff88802ac3ae28 R14: dffffc0000000000 R15: ffff88802ac3ae28 FS: 000055558f759380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001000000112 CR3: 0000000077cfa000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: cc int3 1: cc int3 2: cc int3 3: cc int3 4: cc int3 5: cc int3 6: cc int3 7: cc int3 8: cc int3 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: f3 0f 1e fa endbr64 15: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 1a: 66 90 xchg %ax,%ax 1c: 55 push %rbp 1d: 48 89 e5 mov %rsp,%rbp 20: f3 0f 1e fa endbr64 24: 31 c0 xor %eax,%eax 26: 48 8b 7f 18 mov 0x18(%rdi),%rdi * 2a: 8b 7f 00 mov 0x0(%rdi),%edi <-- trapping instruction 2d: c9 leave 2e: c3 ret 2f: cc int3 30: cc int3 31: cc int3 32: cc int3 33: cc int3 34: cc int3 35: 40 03 00 rex add (%rax),%eax 38: 00 cc add %cl,%ah 3a: cc int3 3b: cc int3 3c: cc int3 3d: cc int3 3e: cc int3 3f: cc int3 --- 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@...glegroups.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
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