syzbot
general protection fault in xfrmi_rcv_cb
Status:
auto-closed as invalid on 2019/08/27 23:47
Subsystems:
net
[Documentation on labels]
Reported-by: syzbot+af91688fec2b033aa620@syzkaller.appspotmail.com
First crash: 2875d, last: 2704d
Sample crash report:
RBP: 0000000020000100 R08: 00000000000000f0 R09: 0000000000000000
R10: 0000000000000064 R11: 0000000000000293 R12: 00007ff03ce5f6d4
R13: 00000000004c646c R14: 00000000004db860 R15: 0000000000000004
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 10421 Comm: syz-executor.4 Not tainted 5.0.0-rc5+ #72
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:xs_net include/net/xfrm.h:253 [inline]
RIP: 0010:xfrmi_rcv_cb+0x14c/0x970 net/xfrm/xfrm_interface.c:259
Code: 7c f5 08 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 57 07 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 6c f5 08 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 2a 07 00 00 49 8b 7d 00 49 8d b5 d0 00 00 00 e8
RSP: 0018:ffff888060d9f110 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8880880f8540 RCX: ffffc9000a215000
RDX: 0000000000000000 RSI: ffffffff860224ca RDI: ffff8880a89d9e48
RBP: ffff888060d9f148 R08: ffff888061126480 R09: ffffed1015d25bd0
R10: ffffed1015d25bcf R11: ffff8880ae92de7b R12: 00000000ffffffff
R13: 0000000000000000 R14: ffffffffffffffff R15: 00000000ffffffff
FS: 00007ff03ce5f700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001c11978 CR3: 000000008c05e000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
xfrm6_rcv_cb+0x118/0x290 net/ipv6/xfrm6_protocol.c:59
xfrm_rcv_cb net/xfrm/xfrm_input.c:106 [inline]
xfrm_input+0x8f4/0x3070 net/xfrm/xfrm_input.c:472
xfrm6_rcv_spi net/ipv6/xfrm6_input.c:31 [inline]
xfrm6_rcv_tnl+0x175/0x1e0 net/ipv6/xfrm6_input.c:74
xfrm6_rcv+0x18/0x20 net/ipv6/xfrm6_input.c:81
xfrm6_esp_rcv+0xd8/0x230 net/ipv6/xfrm6_protocol.c:74
ip6_protocol_deliver_rcu+0x303/0x16c0 net/ipv6/ip6_input.c:394
ip6_input_finish+0x84/0x170 net/ipv6/ip6_input.c:434
NF_HOOK include/linux/netfilter.h:289 [inline]
NF_HOOK include/linux/netfilter.h:283 [inline]
ip6_input+0xe4/0x3f0 net/ipv6/ip6_input.c:443
kobject: 'loop2' (0000000059db9fef): kobject_uevent_env
ip6_mc_input+0x4aa/0xf30 net/ipv6/ip6_input.c:537
kobject: 'loop2' (0000000059db9fef): fill_kobj_path: path = '/devices/virtual/block/loop2'
dst_input include/net/dst.h:450 [inline]
ip6_rcv_finish+0x1e7/0x320 net/ipv6/ip6_input.c:76
NF_HOOK include/linux/netfilter.h:289 [inline]
NF_HOOK include/linux/netfilter.h:283 [inline]
ipv6_rcv+0x10e/0x420 net/ipv6/ip6_input.c:272
__netif_receive_skb_one_core+0x115/0x1a0 net/core/dev.c:4973
kobject: 'loop5' (0000000072c56844): kobject_uevent_env
__netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083
netif_receive_skb_internal+0x117/0x660 net/core/dev.c:5186
kobject: 'loop5' (0000000072c56844): fill_kobj_path: path = '/devices/virtual/block/loop5'
napi_frags_finish net/core/dev.c:5753 [inline]
napi_gro_frags+0xade/0xd10 net/core/dev.c:5827
tun_get_user+0x2832/0x38d0 drivers/net/tun.c:1974
tun_chr_write_iter+0xbd/0x160 drivers/net/tun.c:2019
call_write_iter include/linux/fs.h:1863 [inline]
do_iter_readv_writev+0x5e0/0x8e0 fs/read_write.c:680
do_iter_write fs/read_write.c:956 [inline]
do_iter_write+0x184/0x610 fs/read_write.c:937
vfs_writev+0x1b3/0x2f0 fs/read_write.c:1001
do_writev+0xf6/0x290 fs/read_write.c:1036
kobject: 'loop1' (000000000f4ac4dd): kobject_uevent_env
__do_sys_writev fs/read_write.c:1109 [inline]
__se_sys_writev fs/read_write.c:1106 [inline]
__x64_sys_writev+0x75/0xb0 fs/read_write.c:1106
do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457cf1
Code: 75 14 b8 14 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 e4 b9 fb ff c3 48 83 ec 08 e8 1a 2d 00 00 48 89 04 24 b8 14 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 63 2d 00 00 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ff03ce5eba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014
kobject: 'loop1' (000000000f4ac4dd): fill_kobj_path: path = '/devices/virtual/block/loop1'
RAX: ffffffffffffffda RBX: 0000000000000066 RCX: 0000000000457cf1
RDX: 0000000000000001 RSI: 00007ff03ce5ebf0 RDI: 00000000000000f0
RBP: 0000000020000100 R08: 00000000000000f0 R09: 0000000000000000
R10: 0000000000000064 R11: 0000000000000293 R12: 00007ff03ce5f6d4
R13: 00000000004c646c R14: 00000000004db860 R15: 0000000000000004
Modules linked in:
---[ end trace bb39c8ac98154ee7 ]---
RIP: 0010:xs_net include/net/xfrm.h:253 [inline]
RIP: 0010:xfrmi_rcv_cb+0x14c/0x970 net/xfrm/xfrm_interface.c:259
Code: 7c f5 08 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 57 07 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 6c f5 08 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 2a 07 00 00 49 8b 7d 00 49 8d b5 d0 00 00 00 e8
RSP: 0018:ffff888060d9f110 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8880880f8540 RCX: ffffc9000a215000
RDX: 0000000000000000 RSI: ffffffff860224ca RDI: ffff8880a89d9e48
RBP: ffff888060d9f148 R08: ffff888061126480 R09: ffffed1015d25bd0
R10: ffffed1015d25bcf R11: ffff8880ae92de7b R12: 00000000ffffffff
R13: 0000000000000000 R14: ffffffffffffffff R15: 00000000ffffffff
FS: 00007ff03ce5f700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001c11978 CR3: 000000008c05e000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Struck through repros no longer work on HEAD.