syzbot


BUG: stack guard page was hit in deref_stack_reg
Status: fixed on 2020/07/17 17:58
Reported-by: syzbot+2a3c14db0e17fe4c7409@syzkaller.appspotmail.com
Fix commit: dd912306ff00 net: fix a potential recursive NETDEV_FEAT_CHANGE
First crash: 807d, last: 743d
duplicates (3):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
BUG: stack guard page was hit in unwind_next_frame 6 692d 754d 22/22 closed as dup on 2020/05/04 19:04
BUG: stack guard page was hit in match_held_lock 1 798d 793d 0/22 closed as dup on 2020/03/24 16:36
BUG: stack guard page was hit in pvclock_clocksource_read 1 678d 674d 0/22 closed as dup on 2020/07/21 18:02

Sample crash report:
8021q: adding VLAN 0 to HW filter on device bond140
BUG: stack guard page was hit at 000000008473e935 (stack is 00000000b14940b2..00000000a9a78828)
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 11988 Comm: syz-executor.1 Not tainted 5.7.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:deref_stack_reg+0x22/0xe0 arch/x86/kernel/unwind_orc.c:347
Code: 0f 1f 84 00 00 00 00 00 41 55 49 bd 00 00 00 00 00 fc ff df 41 54 49 89 d4 ba 08 00 00 00 55 48 89 f5 53 48 83 ec 60 48 89 e3 <48> c7 04 24 b3 8a b5 41 48 c7 44 24 08 18 57 47 89 48 c1 eb 03 48
RSP: 0018:ffffc9001d167fe8 EFLAGS: 00010286
RAX: ffffc9001d168200 RBX: ffffc9001d167fe8 RCX: 0000000000000000
RDX: 0000000000000008 RSI: ffffc9001d1681f8 RDI: ffffc9001d168200
RBP: ffffc9001d1681f8 R08: ffffffff8af0ea22 R09: ffffffff8af0ea26
R10: 000000000000cb6b R11: 000000000007001f R12: ffffc9001d168248
R13: dffffc0000000000 R14: ffffc9001d168250 R15: ffffc9001d168200
FS:  00007f1adaf71700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9001d167fe8 CR3: 000000002a112000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 unwind_next_frame+0xbfa/0x19d0 arch/x86/kernel/unwind_orc.c:499
 __unwind_start arch/x86/kernel/unwind_orc.c:655 [inline]
 __unwind_start+0x474/0x820 arch/x86/kernel/unwind_orc.c:585
 unwind_start arch/x86/include/asm/unwind.h:60 [inline]
 arch_stack_walk+0x57/0xd0 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:123
 save_stack+0x1b/0x40 mm/kasan/common.c:49
 set_track mm/kasan/common.c:57 [inline]
 __kasan_kmalloc mm/kasan/common.c:495 [inline]
 __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:468
 slab_post_alloc_hook mm/slab.h:586 [inline]
 slab_alloc_node mm/slab.c:3263 [inline]
 kmem_cache_alloc_node_trace+0x14b/0x790 mm/slab.c:3593
 __do_kmalloc_node mm/slab.c:3615 [inline]
 __kmalloc_node_track_caller+0x38/0x60 mm/slab.c:3630
 __kmalloc_reserve.isra.0+0x39/0xe0 net/core/skbuff.c:142
 pskb_expand_head+0x148/0x1020 net/core/skbuff.c:1627
 netlink_trim+0x1ea/0x240 net/netlink/af_netlink.c:1285
 netlink_broadcast_filtered+0x5f/0xd40 net/netlink/af_netlink.c:1490
 netlink_broadcast net/netlink/af_netlink.c:1535 [inline]
 nlmsg_multicast include/net/netlink.h:1020 [inline]
 nlmsg_notify+0x90/0x250 net/netlink/af_netlink.c:2512
 rtnl_notify net/core/rtnetlink.c:737 [inline]
 rtmsg_ifinfo_send net/core/rtnetlink.c:3726 [inline]
 rtmsg_ifinfo_event.part.0+0xb6/0xe0 net/core/rtnetlink.c:3741
 rtmsg_ifinfo_event net/core/rtnetlink.c:5519 [inline]
 rtnetlink_event+0x11e/0x150 net/core/rtnetlink.c:5512
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3237 [inline]
 bond_netdev_event+0x6ee/0x930 drivers/net/bonding/bond_main.c:3277
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 netdev_features_change net/core/dev.c:1432 [inline]
 netdev_update_features net/core/dev.c:9198 [inline]
 netdev_update_features+0xc4/0xd0 net/core/dev.c:9195
 netdev_sync_lower_features net/core/dev.c:9007 [inline]
 __netdev_update_features+0x821/0x12f0 net/core/dev.c:9142
 netdev_change_features+0x61/0xb0 net/core/dev.c:9214
 bond_compute_features.isra.0+0x521/0xa40 drivers/net/bonding/bond_main.c:1188
 bond_enslave+0x341e/0x4800 drivers/net/bonding/bond_main.c:1818
 do_set_master net/core/rtnetlink.c:2477 [inline]
 do_set_master+0x1d7/0x230 net/core/rtnetlink.c:2450
 do_setlink+0xaa2/0x3680 net/core/rtnetlink.c:2612
 __rtnl_newlink+0xad5/0x1590 net/core/rtnetlink.c:3273
 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3398
 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5461
 netlink_rcv_skb+0x15a/0x410 net/netlink/af_netlink.c:2469
 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
 netlink_unicast+0x537/0x740 net/netlink/af_netlink.c:1329
 netlink_sendmsg+0x882/0xe10 net/netlink/af_netlink.c:1918
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 ____sys_sendmsg+0x6e6/0x810 net/socket.c:2352
 ___sys_sendmsg+0x100/0x170 net/socket.c:2406
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45c829
Code: 0d b7 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 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f1adaf70c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000500ce0 RCX: 000000000045c829
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000005
RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000a04 R14: 00000000004ccbcc R15: 00007f1adaf716d4
Modules linked in:
---[ end trace e6320ae840588144 ]---
RIP: 0010:deref_stack_reg+0x22/0xe0 arch/x86/kernel/unwind_orc.c:347
Code: 0f 1f 84 00 00 00 00 00 41 55 49 bd 00 00 00 00 00 fc ff df 41 54 49 89 d4 ba 08 00 00 00 55 48 89 f5 53 48 83 ec 60 48 89 e3 <48> c7 04 24 b3 8a b5 41 48 c7 44 24 08 18 57 47 89 48 c1 eb 03 48
RSP: 0018:ffffc9001d167fe8 EFLAGS: 00010286
RAX: ffffc9001d168200 RBX: ffffc9001d167fe8 RCX: 0000000000000000
RDX: 0000000000000008 RSI: ffffc9001d1681f8 RDI: ffffc9001d168200
RBP: ffffc9001d1681f8 R08: ffffffff8af0ea22 R09: ffffffff8af0ea26
R10: 000000000000cb6b R11: 000000000007001f R12: ffffc9001d168248
R13: dffffc0000000000 R14: ffffc9001d168250 R15: ffffc9001d168200
FS:  00007f1adaf71700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9001d167fe8 CR3: 000000002a112000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-kasan-gce 2020/05/14 00:23 net-next 6cb7576710ae a885920d .config log report
ci-upstream-net-kasan-gce 2020/03/10 08:08 net-next 34a568a244be 35f53e45 .config log report