bisecting fixing commit since 6663cf821c133b36dee65fb9eb2d976abc706512
building syzkaller on 6ecc6d0f7a55902fe3efbb519ce9ef5e13f15a92
testing commit 6663cf821c133b36dee65fb9eb2d976abc706512 with gcc (GCC) 8.1.0
kernel signature: be4b088cc723c6877cc9e28477b090c13fae63facb53141fceefe66852864c7d
run #0: crashed: general protection fault in __bfs
run #1: crashed: kernel BUG at arch/x86/mm/physaddr.c:LINE!
run #2: crashed: kernel BUG at arch/x86/mm/physaddr.c:LINE!
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
testing current HEAD 8e5aa6173ad3ef794e52afa2bb56451db18642b9
testing commit 8e5aa6173ad3ef794e52afa2bb56451db18642b9 with gcc (GCC) 8.1.0
kernel signature: 69eee14c7c80f74f3815d0845818a91abede7a211d99edaa2a1aed6840a73747
all runs: crashed: BUG: using smp_processor_id() in preemptible [ADDR] code: syz-executor
revisions tested: 2, total time: 25m47.952380977s (build: 11m48.429861168s, test: 13m10.591972082s)
the crash still happens on HEAD
commit msg: Merge branch 'qed-Utilize-FW-8.42.2.0'
crash: BUG: using smp_processor_id() in preemptible [ADDR] code: syz-executor
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
tipc: Started in network mode
tipc: Own node identity 7f000001, cluster identity 4711
check_preemption_disabled: 8 callbacks suppressed
BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.2/7584
caller is dst_cache_get+0x33/0xa0 net/core/dst_cache.c:68
CPU: 1 PID: 7584 Comm: syz-executor.2 Not tainted 5.5.0-rc7-syzkaller #0
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+0x12d/0x187 lib/dump_stack.c:118
 check_preemption_disabled lib/smp_processor_id.c:47 [inline]
 debug_smp_processor_id.cold.1+0x84/0x9e lib/smp_processor_id.c:57
 dst_cache_get+0x33/0xa0 net/core/dst_cache.c:68
 tipc_udp_xmit.isra.15+0xab/0xcd0 net/tipc/udp_media.c:164
 tipc_udp_send_msg+0x31e/0x3d0 net/tipc/udp_media.c:244
 tipc_bearer_xmit_skb+0x1a5/0x370 net/tipc/bearer.c:526
 tipc_enable_bearer+0x859/0xbb0 net/tipc/bearer.c:331
 __tipc_nl_bearer_enable+0x265/0x390 net/tipc/bearer.c:995
 tipc_nl_bearer_enable+0x1d/0x30 net/tipc/bearer.c:1003
 genl_family_rcv_msg_doit net/netlink/genetlink.c:672 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:717 [inline]
 genl_rcv_msg+0x5e1/0x10f0 net/netlink/genetlink.c:734
 netlink_rcv_skb+0x13f/0x380 net/netlink/af_netlink.c:2477
 genl_rcv+0x23/0x40 net/netlink/genetlink.c:745
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x479/0x6c0 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x7ab/0xd50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xe6/0x110 net/socket.c:672
 ____sys_sendmsg+0x603/0x980 net/socket.c:2343
 ___sys_sendmsg+0xe4/0x160 net/socket.c:2397
 __sys_sendmsg+0xd9/0x180 net/socket.c:2430
 __do_sys_sendmsg net/socket.c:2439 [inline]
 __se_sys_sendmsg net/socket.c:2437 [inline]
 __x64_sys_sendmsg+0x73/0xb0 net/socket.c:2437
 do_syscall_64+0xd0/0x600 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457f89
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f7409e58c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f89
RDX: 0000000000000004 RSI: 0000000020000000 RDI: 000000000000000e
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7409e596d4
R13: 00000000004c52ba R14: 00000000004d9038 R15: 00000000ffffffff
BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.2/7584
caller is dst_cache_set_ip4+0x97/0x2e0 net/core/dst_cache.c:98
CPU: 1 PID: 7584 Comm: syz-executor.2 Not tainted 5.5.0-rc7-syzkaller #0
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+0x12d/0x187 lib/dump_stack.c:118
 check_preemption_disabled lib/smp_processor_id.c:47 [inline]
 debug_smp_processor_id.cold.1+0x84/0x9e lib/smp_processor_id.c:57
 dst_cache_set_ip4+0x97/0x2e0 net/core/dst_cache.c:98
 tipc_udp_xmit.isra.15+0x7aa/0xcd0 net/tipc/udp_media.c:182
 tipc_udp_send_msg+0x31e/0x3d0 net/tipc/udp_media.c:244
 tipc_bearer_xmit_skb+0x1a5/0x370 net/tipc/bearer.c:526
 tipc_enable_bearer+0x859/0xbb0 net/tipc/bearer.c:331
 __tipc_nl_bearer_enable+0x265/0x390 net/tipc/bearer.c:995
 tipc_nl_bearer_enable+0x1d/0x30 net/tipc/bearer.c:1003
 genl_family_rcv_msg_doit net/netlink/genetlink.c:672 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:717 [inline]
 genl_rcv_msg+0x5e1/0x10f0 net/netlink/genetlink.c:734
 netlink_rcv_skb+0x13f/0x380 net/netlink/af_netlink.c:2477
 genl_rcv+0x23/0x40 net/netlink/genetlink.c:745
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x479/0x6c0 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x7ab/0xd50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xe6/0x110 net/socket.c:672
 ____sys_sendmsg+0x603/0x980 net/socket.c:2343
 ___sys_sendmsg+0xe4/0x160 net/socket.c:2397
 __sys_sendmsg+0xd9/0x180 net/socket.c:2430
 __do_sys_sendmsg net/socket.c:2439 [inline]
 __se_sys_sendmsg net/socket.c:2437 [inline]
 __x64_sys_sendmsg+0x73/0xb0 net/socket.c:2437
 do_syscall_64+0xd0/0x600 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457f89
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f7409e58c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f89
RDX: 0000000000000004 RSI: 0000000020000000 RDI: 000000000000000e
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7409e596d4
R13: 00000000004c52ba R14: 00000000004d9038 R15: 00000000ffffffff
tipc: Enabled bearer <udp:syz0>, priority 10
IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
8021q: adding VLAN 0 to HW filter on device batadv0
8021q: adding VLAN 0 to HW filter on device batadv0
8021q: adding VLAN 0 to HW filter on device batadv0
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: 32-bit node address hash set to 100007f
tipc: Started in network mode
tipc: Own node identity 7f000001, cluster identity 4711
BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.1/7634
caller is dst_cache_get+0x33/0xa0 net/core/dst_cache.c:68
CPU: 1 PID: 7634 Comm: syz-executor.1 Not tainted 5.5.0-rc7-syzkaller #0
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+0x12d/0x187 lib/dump_stack.c:118
 check_preemption_disabled lib/smp_processor_id.c:47 [inline]
 debug_smp_processor_id.cold.1+0x84/0x9e lib/smp_processor_id.c:57
 dst_cache_get+0x33/0xa0 net/core/dst_cache.c:68
 tipc_udp_xmit.isra.15+0xab/0xcd0 net/tipc/udp_media.c:164
 tipc_udp_send_msg+0x31e/0x3d0 net/tipc/udp_media.c:244
 tipc_bearer_xmit_skb+0x1a5/0x370 net/tipc/bearer.c:526
 tipc_enable_bearer+0x859/0xbb0 net/tipc/bearer.c:331
 __tipc_nl_bearer_enable+0x265/0x390 net/tipc/bearer.c:995
 tipc_nl_bearer_enable+0x1d/0x30 net/tipc/bearer.c:1003
 genl_family_rcv_msg_doit net/netlink/genetlink.c:672 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:717 [inline]
 genl_rcv_msg+0x5e1/0x10f0 net/netlink/genetlink.c:734
 netlink_rcv_skb+0x13f/0x380 net/netlink/af_netlink.c:2477
 genl_rcv+0x23/0x40 net/netlink/genetlink.c:745
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x479/0x6c0 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x7ab/0xd50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xe6/0x110 net/socket.c:672
 ____sys_sendmsg+0x603/0x980 net/socket.c:2343
 ___sys_sendmsg+0xe4/0x160 net/socket.c:2397
 __sys_sendmsg+0xd9/0x180 net/socket.c:2430
 __do_sys_sendmsg net/socket.c:2439 [inline]
 __se_sys_sendmsg net/socket.c:2437 [inline]
 __x64_sys_sendmsg+0x73/0xb0 net/socket.c:2437
 do_syscall_64+0xd0/0x600 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457f89
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007feabad36c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f89
RDX: 0000000000000004 RSI: 0000000020000000 RDI: 000000000000000f
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007feabad376d4
R13: 00000000004c52ba R14: 00000000004d9038 R15: 00000000ffffffff
tipc: Enabled bearer <udp:syz0>, priority 10
tipc: Started in network mode
tipc: Own node identity 7f000001, cluster identity 4711
BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.4/7651
caller is dst_cache_get+0x33/0xa0 net/core/dst_cache.c:68
CPU: 0 PID: 7651 Comm: syz-executor.4 Not tainted 5.5.0-rc7-syzkaller #0
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+0x12d/0x187 lib/dump_stack.c:118
 check_preemption_disabled lib/smp_processor_id.c:47 [inline]
 debug_smp_processor_id.cold.1+0x84/0x9e lib/smp_processor_id.c:57
 dst_cache_get+0x33/0xa0 net/core/dst_cache.c:68
 tipc_udp_xmit.isra.15+0xab/0xcd0 net/tipc/udp_media.c:164
 tipc_udp_send_msg+0x31e/0x3d0 net/tipc/udp_media.c:244
 tipc_bearer_xmit_skb+0x1a5/0x370 net/tipc/bearer.c:526
 tipc_enable_bearer+0x859/0xbb0 net/tipc/bearer.c:331
 __tipc_nl_bearer_enable+0x265/0x390 net/tipc/bearer.c:995
 tipc_nl_bearer_enable+0x1d/0x30 net/tipc/bearer.c:1003
 genl_family_rcv_msg_doit net/netlink/genetlink.c:672 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:717 [inline]
 genl_rcv_msg+0x5e1/0x10f0 net/netlink/genetlink.c:734
 netlink_rcv_skb+0x13f/0x380 net/netlink/af_netlink.c:2477
 genl_rcv+0x23/0x40 net/netlink/genetlink.c:745
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x479/0x6c0 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x7ab/0xd50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xe6/0x110 net/socket.c:672
 ____sys_sendmsg+0x603/0x980 net/socket.c:2343
 ___sys_sendmsg+0xe4/0x160 net/socket.c:2397
 __sys_sendmsg+0xd9/0x180 net/socket.c:2430
 __do_sys_sendmsg net/socket.c:2439 [inline]
 __se_sys_sendmsg net/socket.c:2437 [inline]
 __x64_sys_sendmsg+0x73/0xb0 net/socket.c:2437
 do_syscall_64+0xd0/0x600 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457f89
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f92e6d0dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f89
RDX: 0000000000000004 RSI: 0000000020000000 RDI: 000000000000000f
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f92e6d0e6d4
R13: 00000000004c52ba R14: 00000000004d9038 R15: 00000000ffffffff
tipc: 32-bit node address hash set to 100007f
tipc: Enabled bearer <udp:syz0>, priority 10
tipc: Started in network mode
tipc: Own node identity 7f000001, cluster identity 4711
BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.5/7650
caller is dst_cache_get+0x33/0xa0 net/core/dst_cache.c:68
CPU: 0 PID: 7650 Comm: syz-executor.5 Not tainted 5.5.0-rc7-syzkaller #0
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+0x12d/0x187 lib/dump_stack.c:118
 check_preemption_disabled lib/smp_processor_id.c:47 [inline]
 debug_smp_processor_id.cold.1+0x84/0x9e lib/smp_processor_id.c:57
 dst_cache_get+0x33/0xa0 net/core/dst_cache.c:68
 tipc_udp_xmit.isra.15+0xab/0xcd0 net/tipc/udp_media.c:164
 tipc_udp_send_msg+0x31e/0x3d0 net/tipc/udp_media.c:244
 tipc_bearer_xmit_skb+0x1a5/0x370 net/tipc/bearer.c:526
 tipc_enable_bearer+0x859/0xbb0 net/tipc/bearer.c:331
 __tipc_nl_bearer_enable+0x265/0x390 net/tipc/bearer.c:995
 tipc_nl_bearer_enable+0x1d/0x30 net/tipc/bearer.c:1003
 genl_family_rcv_msg_doit net/netlink/genetlink.c:672 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:717 [inline]
 genl_rcv_msg+0x5e1/0x10f0 net/netlink/genetlink.c:734
 netlink_rcv_skb+0x13f/0x380 net/netlink/af_netlink.c:2477
 genl_rcv+0x23/0x40 net/netlink/genetlink.c:745
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x479/0x6c0 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x7ab/0xd50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xe6/0x110 net/socket.c:672
 ____sys_sendmsg+0x603/0x980 net/socket.c:2343
 ___sys_sendmsg+0xe4/0x160 net/socket.c:2397
 __sys_sendmsg+0xd9/0x180 net/socket.c:2430
 __do_sys_sendmsg net/socket.c:2439 [inline]
 __se_sys_sendmsg net/socket.c:2437 [inline]
 __x64_sys_sendmsg+0x73/0xb0 net/socket.c:2437
 do_syscall_64+0xd0/0x600 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457f89
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f4dc9aaec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f89
RDX: 0000000000000004 RSI: 0000000020000000 RDI: 000000000000000f
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4dc9aaf6d4
R13: 00000000004c52ba R14: 00000000004d9038 R15: 00000000ffffffff
BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.5/7650
caller is dst_cache_set_ip4+0x97/0x2e0 net/core/dst_cache.c:98
CPU: 1 PID: 7650 Comm: syz-executor.5 Not tainted 5.5.0-rc7-syzkaller #0
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+0x12d/0x187 lib/dump_stack.c:118
 check_preemption_disabled lib/smp_processor_id.c:47 [inline]
 debug_smp_processor_id.cold.1+0x84/0x9e lib/smp_processor_id.c:57
 dst_cache_set_ip4+0x97/0x2e0 net/core/dst_cache.c:98
 tipc_udp_xmit.isra.15+0x7aa/0xcd0 net/tipc/udp_media.c:182
 tipc_udp_send_msg+0x31e/0x3d0 net/tipc/udp_media.c:244
 tipc_bearer_xmit_skb+0x1a5/0x370 net/tipc/bearer.c:526
 tipc_enable_bearer+0x859/0xbb0 net/tipc/bearer.c:331
 __tipc_nl_bearer_enable+0x265/0x390 net/tipc/bearer.c:995
 tipc_nl_bearer_enable+0x1d/0x30 net/tipc/bearer.c:1003
 genl_family_rcv_msg_doit net/netlink/genetlink.c:672 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:717 [inline]
 genl_rcv_msg+0x5e1/0x10f0 net/netlink/genetlink.c:734
 netlink_rcv_skb+0x13f/0x380 net/netlink/af_netlink.c:2477
 genl_rcv+0x23/0x40 net/netlink/genetlink.c:745
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x479/0x6c0 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x7ab/0xd50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xe6/0x110 net/socket.c:672
 ____sys_sendmsg+0x603/0x980 net/socket.c:2343
 ___sys_sendmsg+0xe4/0x160 net/socket.c:2397
 __sys_sendmsg+0xd9/0x180 net/socket.c:2430
 __do_sys_sendmsg net/socket.c:2439 [inline]
 __se_sys_sendmsg net/socket.c:2437 [inline]
 __x64_sys_sendmsg+0x73/0xb0 net/socket.c:2437
 do_syscall_64+0xd0/0x600 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457f89
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f4dc9aaec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f89
RDX: 0000000000000004 RSI: 0000000020000000 RDI: 000000000000000f
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4dc9aaf6d4
R13: 00000000004c52ba R14: 00000000004d9038 R15: 00000000ffffffff
tipc: Enabled bearer <udp:syz0>, priority 10
tipc: 32-bit node address hash set to 100007f
tipc: Started in network mode
tipc: Own node identity 7f000001, cluster identity 4711
BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.3/7676
caller is dst_cache_get+0x33/0xa0 net/core/dst_cache.c:68
CPU: 0 PID: 7676 Comm: syz-executor.3 Not tainted 5.5.0-rc7-syzkaller #0
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+0x12d/0x187 lib/dump_stack.c:118
 check_preemption_disabled lib/smp_processor_id.c:47 [inline]
 debug_smp_processor_id.cold.1+0x84/0x9e lib/smp_processor_id.c:57
 dst_cache_get+0x33/0xa0 net/core/dst_cache.c:68
 tipc_udp_xmit.isra.15+0xab/0xcd0 net/tipc/udp_media.c:164
 tipc_udp_send_msg+0x31e/0x3d0 net/tipc/udp_media.c:244
 tipc_bearer_xmit_skb+0x1a5/0x370 net/tipc/bearer.c:526
 tipc_enable_bearer+0x859/0xbb0 net/tipc/bearer.c:331
 __tipc_nl_bearer_enable+0x265/0x390 net/tipc/bearer.c:995
 tipc_nl_bearer_enable+0x1d/0x30 net/tipc/bearer.c:1003
 genl_family_rcv_msg_doit net/netlink/genetlink.c:672 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:717 [inline]
 genl_rcv_msg+0x5e1/0x10f0 net/netlink/genetlink.c:734
 netlink_rcv_skb+0x13f/0x380 net/netlink/af_netlink.c:2477
 genl_rcv+0x23/0x40 net/netlink/genetlink.c:745
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x479/0x6c0 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x7ab/0xd50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xe6/0x110 net/socket.c:672
 ____sys_sendmsg+0x603/0x980 net/socket.c:2343
 ___sys_sendmsg+0xe4/0x160 net/socket.c:2397
 __sys_sendmsg+0xd9/0x180 net/socket.c:2430
 __do_sys_sendmsg net/socket.c:2439 [inline]
 __se_sys_sendmsg net/socket.c:2437 [inline]
 __x64_sys_sendmsg+0x73/0xb0 net/socket.c:2437
 do_syscall_64+0xd0/0x600 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457f89
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f0df41d2c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f89
RDX: 0000000000000004 RSI: 0000000020000000 RDI: 000000000000000f
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0df41d36d4
R13: 00000000004c52ba R14: 00000000004d9038 R15: 00000000ffffffff
tipc: 32-bit node address hash set to 100007f
tipc: Enabled bearer <udp:syz0>, priority 10
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Started in network mode
tipc: Own node identity 7f000001, cluster identity 4711
tipc: 32-bit node address hash set to 100007f
BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/7734
caller is dst_cache_get+0x33/0xa0 net/core/dst_cache.c:68
CPU: 0 PID: 7734 Comm: syz-executor.0 Not tainted 5.5.0-rc7-syzkaller #0
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+0x12d/0x187 lib/dump_stack.c:118
 check_preemption_disabled lib/smp_processor_id.c:47 [inline]
 debug_smp_processor_id.cold.1+0x84/0x9e lib/smp_processor_id.c:57
 dst_cache_get+0x33/0xa0 net/core/dst_cache.c:68
 tipc_udp_xmit.isra.15+0xab/0xcd0 net/tipc/udp_media.c:164
 tipc_udp_send_msg+0x31e/0x3d0 net/tipc/udp_media.c:244
 tipc_bearer_xmit_skb+0x1a5/0x370 net/tipc/bearer.c:526
 tipc_enable_bearer+0x859/0xbb0 net/tipc/bearer.c:331
 __tipc_nl_bearer_enable+0x265/0x390 net/tipc/bearer.c:995
 tipc_nl_bearer_enable+0x1d/0x30 net/tipc/bearer.c:1003
 genl_family_rcv_msg_doit net/netlink/genetlink.c:672 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:717 [inline]
 genl_rcv_msg+0x5e1/0x10f0 net/netlink/genetlink.c:734
 netlink_rcv_skb+0x13f/0x380 net/netlink/af_netlink.c:2477
 genl_rcv+0x23/0x40 net/netlink/genetlink.c:745
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x479/0x6c0 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x7ab/0xd50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xe6/0x110 net/socket.c:672
 ____sys_sendmsg+0x603/0x980 net/socket.c:2343
 ___sys_sendmsg+0xe4/0x160 net/socket.c:2397
 __sys_sendmsg+0xd9/0x180 net/socket.c:2430
 __do_sys_sendmsg net/socket.c:2439 [inline]
 __se_sys_sendmsg net/socket.c:2437 [inline]
 __x64_sys_sendmsg+0x73/0xb0 net/socket.c:2437
 do_syscall_64+0xd0/0x600 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457f89
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f9e5e501c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f89
RDX: 0000000000000004 RSI: 0000000020000000 RDI: 000000000000000f
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9e5e5026d4
R13: 00000000004c52ba R14: 00000000004d9038 R15: 00000000ffffffff
BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/7734
caller is dst_cache_set_ip4+0x97/0x2e0 net/core/dst_cache.c:98
CPU: 0 PID: 7734 Comm: syz-executor.0 Not tainted 5.5.0-rc7-syzkaller #0
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+0x12d/0x187 lib/dump_stack.c:118
 check_preemption_disabled lib/smp_processor_id.c:47 [inline]
 debug_smp_processor_id.cold.1+0x84/0x9e lib/smp_processor_id.c:57
 dst_cache_set_ip4+0x97/0x2e0 net/core/dst_cache.c:98
 tipc_udp_xmit.isra.15+0x7aa/0xcd0 net/tipc/udp_media.c:182
 tipc_udp_send_msg+0x31e/0x3d0 net/tipc/udp_media.c:244
 tipc_bearer_xmit_skb+0x1a5/0x370 net/tipc/bearer.c:526
 tipc_enable_bearer+0x859/0xbb0 net/tipc/bearer.c:331
 __tipc_nl_bearer_enable+0x265/0x390 net/tipc/bearer.c:995
 tipc_nl_bearer_enable+0x1d/0x30 net/tipc/bearer.c:1003
 genl_family_rcv_msg_doit net/netlink/genetlink.c:672 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:717 [inline]
 genl_rcv_msg+0x5e1/0x10f0 net/netlink/genetlink.c:734
 netlink_rcv_skb+0x13f/0x380 net/netlink/af_netlink.c:2477
 genl_rcv+0x23/0x40 net/netlink/genetlink.c:745
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x479/0x6c0 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x7ab/0xd50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xe6/0x110 net/socket.c:672
 ____sys_sendmsg+0x603/0x980 net/socket.c:2343
 ___sys_sendmsg+0xe4/0x160 net/socket.c:2397
 __sys_sendmsg+0xd9/0x180 net/socket.c:2430
 __do_sys_sendmsg net/socket.c:2439 [inline]
 __se_sys_sendmsg net/socket.c:2437 [inline]
 __x64_sys_sendmsg+0x73/0xb0 net/socket.c:2437
 do_syscall_64+0xd0/0x600 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457f89
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f9e5e501c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f89
RDX: 0000000000000004 RSI: 0000000020000000 RDI: 000000000000000f
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9e5e5026d4
R13: 00000000004c52ba R14: 00000000004d9038 R15: 00000000ffffffff
tipc: Enabled bearer <udp:syz0>, priority 10
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: 32-bit node address hash set to 100007f
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled
tipc: Enabling of bearer <udp:syz0> rejected, already enabled