Warning: Permanently added '10.128.0.194' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 116.537345][T11122] IPVS: ftp: loaded support on port[0] = 21 [ 116.599459][T11122] ===================================================== [ 116.606452][T11122] BUG: KMSAN: uninit-value in ethnl_update_bitset32+0x2c85/0x3860 [ 116.614289][T11122] CPU: 1 PID: 11122 Comm: syz-executor710 Not tainted 5.6.0-rc2-syzkaller #0 [ 116.623031][T11122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.633127][T11122] Call Trace: [ 116.636519][T11122] dump_stack+0x1c9/0x220 [ 116.640863][T11122] kmsan_report+0xf7/0x1e0 [ 116.645280][T11122] __msan_warning+0x58/0xa0 [ 116.649781][T11122] ethnl_update_bitset32+0x2c85/0x3860 [ 116.655289][T11122] ? kmsan_get_metadata+0x11d/0x180 [ 116.660506][T11122] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 116.666668][T11122] ? kmsan_memcpy_metadata+0xb/0x10 [ 116.672077][T11122] ? __msan_memcpy+0x43/0x50 [ 116.676703][T11122] ethnl_update_bitset+0x11c/0x130 [ 116.681828][T11122] ethnl_set_linkmodes+0x9f9/0x1430 [ 116.687098][T11122] ? kmsan_get_metadata+0x11d/0x180 [ 116.692294][T11122] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 116.698136][T11122] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 116.703495][T11122] genl_rcv_msg+0x205e/0x2460 [ 116.708188][T11122] netlink_rcv_skb+0x451/0x650 [ 116.712943][T11122] ? genl_unbind+0x380/0x380 [ 116.717533][T11122] genl_rcv+0x63/0x80 [ 116.721502][T11122] netlink_unicast+0xf9e/0x1100 [ 116.726346][T11122] ? genl_pernet_exit+0x90/0x90 [ 116.731239][T11122] netlink_sendmsg+0x1246/0x14d0 [ 116.736191][T11122] ? netlink_getsockopt+0x1440/0x1440 [ 116.741560][T11122] ____sys_sendmsg+0x12b6/0x1350 [ 116.746534][T11122] __sys_sendmsg+0x451/0x5f0 [ 116.751135][T11122] ? __fpregs_load_activate+0x38c/0x3c0 [ 116.756681][T11122] ? kmsan_get_metadata+0x11d/0x180 [ 116.761920][T11122] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 116.767737][T11122] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 116.773794][T11122] ? prepare_exit_to_usermode+0x1ca/0x520 [ 116.779530][T11122] __se_sys_sendmsg+0x97/0xb0 [ 116.784333][T11122] __x64_sys_sendmsg+0x4a/0x70 [ 116.789101][T11122] do_syscall_64+0xb8/0x160 [ 116.793644][T11122] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 116.799532][T11122] RIP: 0033:0x445239 [ 116.803412][T11122] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 8b d2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 116.823004][T11122] RSP: 002b:00007fffcb42d408 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 116.831424][T11122] RAX: ffffffffffffffda RBX: 00007fffcb42d420 RCX: 0000000000445239 [ 116.839483][T11122] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 116.847571][T11122] RBP: 0000000000000003 R08: 0000000000000000 R09: 00000000bb1414ac [ 116.855537][T11122] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 116.863516][T11122] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 116.871523][T11122] [ 116.873834][T11122] Uninit was created at: [ 116.878070][T11122] kmsan_internal_poison_shadow+0x66/0xd0 [ 116.883783][T11122] kmsan_slab_alloc+0x8a/0xe0 [ 116.888484][T11122] __kmalloc_node_track_caller+0xb40/0x1200 [ 116.894365][T11122] __alloc_skb+0x2fd/0xac0 [ 116.898782][T11122] netlink_sendmsg+0x7d3/0x14d0 [ 116.903625][T11122] ____sys_sendmsg+0x12b6/0x1350 [ 116.908641][T11122] __sys_sendmsg+0x451/0x5f0 [ 116.913218][T11122] __se_sys_sendmsg+0x97/0xb0 [ 116.917890][T11122] __x64_sys_sendmsg+0x4a/0x70 [ 116.922648][T11122] do_syscall_64+0xb8/0x160 [ 116.927157][T11122] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 116.933031][T11122] ===================================================== [ 116.939948][T11122] Disabling lock debugging due to kernel taint [ 116.946126][T11122] Kernel panic - not syncing: panic_on_warn set ... [ 116.952828][T11122] CPU: 1 PID: 11122 Comm: syz-executor710 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 116.963004][T11122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.973054][T11122] Call Trace: [ 116.976344][T11122] dump_stack+0x1c9/0x220 [ 116.980707][T11122] panic+0x3d5/0xc3e [ 116.984649][T11122] kmsan_report+0x1df/0x1e0 [ 116.989158][T11122] __msan_warning+0x58/0xa0 [ 116.993658][T11122] ethnl_update_bitset32+0x2c85/0x3860 [ 116.999129][T11122] ? kmsan_get_metadata+0x11d/0x180 [ 117.004334][T11122] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 117.011114][T11122] ? kmsan_memcpy_metadata+0xb/0x10 [ 117.016301][T11122] ? __msan_memcpy+0x43/0x50 [ 117.020997][T11122] ethnl_update_bitset+0x11c/0x130 [ 117.026224][T11122] ethnl_set_linkmodes+0x9f9/0x1430 [ 117.031476][T11122] ? kmsan_get_metadata+0x11d/0x180 [ 117.036663][T11122] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 117.049803][T11122] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 117.055219][T11122] genl_rcv_msg+0x205e/0x2460 [ 117.059918][T11122] netlink_rcv_skb+0x451/0x650 [ 117.064689][T11122] ? genl_unbind+0x380/0x380 [ 117.069271][T11122] genl_rcv+0x63/0x80 [ 117.073258][T11122] netlink_unicast+0xf9e/0x1100 [ 117.078097][T11122] ? genl_pernet_exit+0x90/0x90 [ 117.082943][T11122] netlink_sendmsg+0x1246/0x14d0 [ 117.087890][T11122] ? netlink_getsockopt+0x1440/0x1440 [ 117.095140][T11122] ____sys_sendmsg+0x12b6/0x1350 [ 117.102093][T11122] __sys_sendmsg+0x451/0x5f0 [ 117.106739][T11122] ? __fpregs_load_activate+0x38c/0x3c0 [ 117.112272][T11122] ? kmsan_get_metadata+0x11d/0x180 [ 117.117473][T11122] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 117.123323][T11122] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 117.129374][T11122] ? prepare_exit_to_usermode+0x1ca/0x520 [ 117.135084][T11122] __se_sys_sendmsg+0x97/0xb0 [ 117.139746][T11122] __x64_sys_sendmsg+0x4a/0x70 [ 117.144490][T11122] do_syscall_64+0xb8/0x160 [ 117.148976][T11122] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 117.154850][T11122] RIP: 0033:0x445239 [ 117.158723][T11122] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 8b d2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 117.178309][T11122] RSP: 002b:00007fffcb42d408 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 117.186702][T11122] RAX: ffffffffffffffda RBX: 00007fffcb42d420 RCX: 0000000000445239 [ 117.194652][T11122] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 117.202605][T11122] RBP: 0000000000000003 R08: 0000000000000000 R09: 00000000bb1414ac [ 117.210575][T11122] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 117.218527][T11122] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 117.227865][T11122] Kernel Offset: 0xe400000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 117.239399][T11122] Rebooting in 86400 seconds..