Messages in this thread | | | Date | Thu, 14 Jun 2018 00:37:02 -0700 | Subject | WARNING in bpf_prog_select_runtime | From | syzbot <> |
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Hello,
syzbot found the following crash on:
HEAD commit: ee946c36be21 Merge tag 'platform-drivers-x86-v4.17-2' of g.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11ca275b800000 kernel config: https://syzkaller.appspot.com/x/.config?x=889265cebaf9bda1 dashboard link: https://syzkaller.appspot.com/bug?extid=3b889862e65a98317058 compiler: gcc (GCC) 8.0.1 20180413 (experimental) syzkaller repro:https://syzkaller.appspot.com/x/repro.syz?x=17530b5b800000
IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+3b889862e65a98317058@syzkaller.appspotmail.com
RAX: ffffffffffffffda RBX: 00000000014b0914 RCX: 0000000000455979 RDX: 0000000000000033 RSI: 0000000000000001 RDI: 0000000000000004 RBP: 000000000072bea0 R08: 0000000000000010 R09: 0000000000000000 R10: 0000000020000500 R11: 0000000000000246 R12: 0000000000000005 R13: 0000000000000578 R14: 00000000006fc3e0 R15: 000000000000000a WARNING: CPU: 0 PID: 4502 at include/linux/filter.h:651 bpf_prog_lock_ro include/linux/filter.h:651 [inline] WARNING: CPU: 0 PID: 4502 at include/linux/filter.h:651 bpf_prog_select_runtime+0x53c/0x640 kernel/bpf/core.c:1503 Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 4502 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #35 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1b9/0x294 lib/dump_stack.c:113 panic+0x22f/0x4de kernel/panic.c:184 __warn.cold.8+0x163/0x1b3 kernel/panic.c:536 report_bug+0x252/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1de/0x490 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992 RIP: 0010:bpf_prog_lock_ro include/linux/filter.h:651 [inline] RIP: 0010:bpf_prog_select_runtime+0x53c/0x640 kernel/bpf/core.c:1503 RSP: 0018:ffff8801b094f8a8 EFLAGS: 00010293 RAX: ffff8801b194e040 RBX: ffffc90001944000 RCX: ffffffff81857b67 RDX: 0000000000000000 RSI: ffffffff81857efc RDI: 0000000000000005 RBP: ffff8801b094f908 R08: ffff8801b194e040 R09: 0000000000000006 R10: ffff8801b194e040 R11: 0000000000000000 R12: 00000000fffffff4 R13: ffffffff81862050 R14: 0000000000000000 R15: ffff8801d7186480 bpf_migrate_filter net/core/filter.c:1069 [inline] bpf_prepare_filter+0xb65/0x1060 net/core/filter.c:1117 __get_filter+0x1e0/0x280 net/core/filter.c:1310 sk_reuseport_attach_filter+0x1d/0x90 net/core/filter.c:1343 sock_setsockopt+0x1ad3/0x1f40 net/core/sock.c:954 __sys_setsockopt+0x2df/0x390 net/socket.c:1899 __do_sys_setsockopt net/socket.c:1914 [inline] __se_sys_setsockopt net/socket.c:1911 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1911 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455979 RSP: 002b:00007ffd0a44c648 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00000000014b0914 RCX: 0000000000455979 RDX: 0000000000000033 RSI: 0000000000000001 RDI: 0000000000000004 RBP: 000000000072bea0 R08: 0000000000000010 R09: 0000000000000000 R10: 0000000020000500 R11: 0000000000000246 R12: 0000000000000005 R13: 0000000000000578 R14: 00000000006fc3e0 R15: 000000000000000a Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..
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