Re: WARNING in xfrm6_tunnel_net_exit (2)
syzbot has found a reproducer for the following crash on: HEAD commit:eb38401c779d net: stmmac: Populate missing callbacks in HW.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=1233a82780 kernel config: https://syzkaller.appspot.com/x/.config?x=b632d8e2c2ab2c1 dashboard link: https://syzkaller.appspot.com/bug?extid=e9aebef558e3ed673934 compiler: gcc (GCC) 8.0.1 20180413 (experimental) syzkaller repro:https://syzkaller.appspot.com/x/repro.syz?x=1547dbcf80 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=132307cf80 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+e9aebef558e3ed673...@syzkaller.appspotmail.com random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) IPVS: ftp: loaded support on port[0] = 21 WARNING: CPU: 1 PID: 44 at net/ipv6/xfrm6_tunnel.c:348 xfrm6_tunnel_net_exit+0x2df/0x510 net/ipv6/xfrm6_tunnel.c:348 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 44 Comm: kworker/u4:2 Not tainted 4.17.0-rc4+ #52 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net 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:xfrm6_tunnel_net_exit+0x2df/0x510 net/ipv6/xfrm6_tunnel.c:348 RSP: 0018:8801d95273d8 EFLAGS: 00010293 RAX: 8801d955c380 RBX: 8801b03399f8 RCX: 86925525 RDX: RSI: 8692552f RDI: 0007 RBP: 8801d95274f8 R08: 8801d955c380 R09: 0006 R10: 8801d955c380 R11: R12: 00ff R13: ed003b2a4e82 R14: 8801d95274d0 R15: 8801b3e25780 ops_exit_list.isra.7+0xb0/0x160 net/core/net_namespace.c:152 cleanup_net+0x51d/0xb20 net/core/net_namespace.c:523 process_one_work+0xc1e/0x1b50 kernel/workqueue.c:2145 worker_thread+0x1cc/0x1440 kernel/workqueue.c:2279 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..
Re: WARNING in xfrm6_tunnel_net_exit (2)
syzbot has found a reproducer for the following crash on: HEAD commit:eb38401c779d net: stmmac: Populate missing callbacks in HW.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=1233a82780 kernel config: https://syzkaller.appspot.com/x/.config?x=b632d8e2c2ab2c1 dashboard link: https://syzkaller.appspot.com/bug?extid=e9aebef558e3ed673934 compiler: gcc (GCC) 8.0.1 20180413 (experimental) syzkaller repro:https://syzkaller.appspot.com/x/repro.syz?x=1547dbcf80 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=132307cf80 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+e9aebef558e3ed673...@syzkaller.appspotmail.com random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) IPVS: ftp: loaded support on port[0] = 21 WARNING: CPU: 1 PID: 44 at net/ipv6/xfrm6_tunnel.c:348 xfrm6_tunnel_net_exit+0x2df/0x510 net/ipv6/xfrm6_tunnel.c:348 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 44 Comm: kworker/u4:2 Not tainted 4.17.0-rc4+ #52 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net 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:xfrm6_tunnel_net_exit+0x2df/0x510 net/ipv6/xfrm6_tunnel.c:348 RSP: 0018:8801d95273d8 EFLAGS: 00010293 RAX: 8801d955c380 RBX: 8801b03399f8 RCX: 86925525 RDX: RSI: 8692552f RDI: 0007 RBP: 8801d95274f8 R08: 8801d955c380 R09: 0006 R10: 8801d955c380 R11: R12: 00ff R13: ed003b2a4e82 R14: 8801d95274d0 R15: 8801b3e25780 ops_exit_list.isra.7+0xb0/0x160 net/core/net_namespace.c:152 cleanup_net+0x51d/0xb20 net/core/net_namespace.c:523 process_one_work+0xc1e/0x1b50 kernel/workqueue.c:2145 worker_thread+0x1cc/0x1440 kernel/workqueue.c:2279 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..
Re: WARNING in xfrm6_tunnel_net_exit
syzbot has found reproducer for the following crash on upstream commit 3c8ba0d61d04ced9f8d9ff93977995a9e4e96e91 (Sat Mar 31 01:52:36 2018 +) kernel.h: Retain constant expression output for max()/min() syzbot dashboard link: https://syzkaller.appspot.com/bug?extid=777bf170a89e7b326405 So far this crash happened 10982 times on linux-next, mmots, net-next, upstream. syzkaller reproducer: https://syzkaller.appspot.com/x/repro.syz?id=5399809707999232 Raw console output: https://syzkaller.appspot.com/x/log.txt?id=4550974920196096 Kernel config: https://syzkaller.appspot.com/x/.config?id=-1647968177339044852 compiler: gcc (GCC) 8.0.1 20180301 (experimental) IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+777bf170a89e7b326...@syzkaller.appspotmail.com It will help syzbot understand when the bug is fixed. IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 WARNING: CPU: 0 PID: 180 at net/ipv6/xfrm6_tunnel.c:345 xfrm6_tunnel_net_exit+0x2c0/0x4f0 net/ipv6/xfrm6_tunnel.c:345 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 180 Comm: kworker/u4:4 Not tainted 4.16.0+ #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b9/0x29f lib/dump_stack.c:53 panic+0x22f/0x4de kernel/panic.c:183 __warn.cold.8+0x163/0x1a3 kernel/panic.c:547 report_bug+0x252/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1bc/0x470 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:991 RIP: 0010:xfrm6_tunnel_net_exit+0x2c0/0x4f0 net/ipv6/xfrm6_tunnel.c:345 RSP: 0018:8801d96373d8 EFLAGS: 00010293 RAX: 8801d961c080 RBX: 8801b0e999a0 RCX: 866b08c6 RDX: RSI: 866b08d0 RDI: 0007 RBP: 8801d96374f8 R08: 8801d961c080 R09: ed003b6046c2 R10: 0003 R11: 0003 R12: 007c R13: ed003b2c6e82 R14: 8801d96374d0 R15: 8801b6185f80 ops_exit_list.isra.7+0xb0/0x160 net/core/net_namespace.c:152 cleanup_net+0x51d/0xb20 net/core/net_namespace.c:523 process_one_work+0xc1e/0x1b50 kernel/workqueue.c:2145 worker_thread+0x1cc/0x1440 kernel/workqueue.c:2279 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:411 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..
Re: WARNING in xfrm6_tunnel_net_exit
syzbot has found reproducer for the following crash on upstream commit 3c8ba0d61d04ced9f8d9ff93977995a9e4e96e91 (Sat Mar 31 01:52:36 2018 +) kernel.h: Retain constant expression output for max()/min() syzbot dashboard link: https://syzkaller.appspot.com/bug?extid=777bf170a89e7b326405 So far this crash happened 10982 times on linux-next, mmots, net-next, upstream. syzkaller reproducer: https://syzkaller.appspot.com/x/repro.syz?id=5399809707999232 Raw console output: https://syzkaller.appspot.com/x/log.txt?id=4550974920196096 Kernel config: https://syzkaller.appspot.com/x/.config?id=-1647968177339044852 compiler: gcc (GCC) 8.0.1 20180301 (experimental) IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+777bf170a89e7b326...@syzkaller.appspotmail.com It will help syzbot understand when the bug is fixed. IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 WARNING: CPU: 0 PID: 180 at net/ipv6/xfrm6_tunnel.c:345 xfrm6_tunnel_net_exit+0x2c0/0x4f0 net/ipv6/xfrm6_tunnel.c:345 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 180 Comm: kworker/u4:4 Not tainted 4.16.0+ #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b9/0x29f lib/dump_stack.c:53 panic+0x22f/0x4de kernel/panic.c:183 __warn.cold.8+0x163/0x1a3 kernel/panic.c:547 report_bug+0x252/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1bc/0x470 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:991 RIP: 0010:xfrm6_tunnel_net_exit+0x2c0/0x4f0 net/ipv6/xfrm6_tunnel.c:345 RSP: 0018:8801d96373d8 EFLAGS: 00010293 RAX: 8801d961c080 RBX: 8801b0e999a0 RCX: 866b08c6 RDX: RSI: 866b08d0 RDI: 0007 RBP: 8801d96374f8 R08: 8801d961c080 R09: ed003b6046c2 R10: 0003 R11: 0003 R12: 007c R13: ed003b2c6e82 R14: 8801d96374d0 R15: 8801b6185f80 ops_exit_list.isra.7+0xb0/0x160 net/core/net_namespace.c:152 cleanup_net+0x51d/0xb20 net/core/net_namespace.c:523 process_one_work+0xc1e/0x1b50 kernel/workqueue.c:2145 worker_thread+0x1cc/0x1440 kernel/workqueue.c:2279 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:411 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..
