Warning: Permanently added '10.128.0.178' (ECDSA) to the list of known hosts. syzkaller login: [ 139.273279][ T33] audit: type=1400 audit(1582670500.335:42): avc: denied { map } for pid=11695 comm="syz-executor420" path="/root/syz-executor420724126" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 139.299224][T11696] IPVS: ftp: loaded support on port[0] = 21 executing program [ 139.367045][ T33] audit: type=1400 audit(1582670500.425:43): avc: denied { create } for pid=11696 comm="syz-executor420" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 139.374367][T11696] ===================================================== [ 139.392158][ T33] audit: type=1400 audit(1582670500.435:44): avc: denied { write } for pid=11696 comm="syz-executor420" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 139.398850][T11696] BUG: KMSAN: uninit-value in ethnl_update_bitset32+0x2c85/0x3860 [ 139.423662][ T33] audit: type=1400 audit(1582670500.435:45): avc: denied { read } for pid=11696 comm="syz-executor420" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 139.431289][T11696] CPU: 0 PID: 11696 Comm: syz-executor420 Not tainted 5.6.0-rc2-syzkaller #0 [ 139.464568][T11696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 139.474605][T11696] Call Trace: [ 139.477911][T11696] dump_stack+0x1c9/0x220 [ 139.482260][T11696] kmsan_report+0xf7/0x1e0 [ 139.486658][T11696] __msan_warning+0x58/0xa0 [ 139.491139][T11696] ethnl_update_bitset32+0x2c85/0x3860 [ 139.496587][T11696] ? kmsan_get_metadata+0x11d/0x180 [ 139.501766][T11696] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 139.507900][T11696] ? kmsan_memcpy_metadata+0xb/0x10 [ 139.513107][T11696] ? __msan_memcpy+0x43/0x50 [ 139.517679][T11696] ethnl_update_bitset+0x11c/0x130 [ 139.522780][T11696] ethnl_set_linkmodes+0x9f9/0x1430 [ 139.528014][T11696] ? kmsan_get_metadata+0x11d/0x180 [ 139.533195][T11696] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 139.539024][T11696] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 139.544397][T11696] genl_rcv_msg+0x205e/0x2460 [ 139.549130][T11696] netlink_rcv_skb+0x451/0x650 [ 139.553887][T11696] ? genl_unbind+0x380/0x380 [ 139.558482][T11696] genl_rcv+0x63/0x80 [ 139.562479][T11696] netlink_unicast+0xf9e/0x1100 [ 139.567319][T11696] ? genl_pernet_exit+0x90/0x90 [ 139.572170][T11696] netlink_sendmsg+0x1246/0x14d0 [ 139.577100][T11696] ? netlink_getsockopt+0x1440/0x1440 [ 139.582452][T11696] ____sys_sendmsg+0x12b6/0x1350 [ 139.587382][T11696] __sys_sendmsg+0x451/0x5f0 [ 139.591975][T11696] ? __fpregs_load_activate+0x38c/0x3c0 [ 139.597500][T11696] ? kmsan_get_metadata+0x11d/0x180 [ 139.602689][T11696] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 139.608484][T11696] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 139.614540][T11696] ? prepare_exit_to_usermode+0x1ca/0x520 [ 139.620250][T11696] ? kmsan_get_metadata+0x4f/0x180 [ 139.625344][T11696] ? kmsan_get_metadata+0x4f/0x180 [ 139.630435][T11696] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 139.636223][T11696] __ia32_compat_sys_sendmsg+0xed/0x130 [ 139.641766][T11696] ? compat_mc_getsockopt+0x19a0/0x19a0 [ 139.647291][T11696] do_fast_syscall_32+0x3c7/0x6e0 [ 139.652318][T11696] entry_SYSENTER_compat+0x68/0x77 [ 139.657429][T11696] RIP: 0023:0xf7f0ed99 [ 139.661474][T11696] Code: 90 e8 0b 00 00 00 f3 90 0f ae e8 eb f9 8d 74 26 00 89 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 139.681059][T11696] RSP: 002b:00000000ffbb9b4c EFLAGS: 00000282 ORIG_RAX: 0000000000000172 [ 139.689459][T11696] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000240 [ 139.697413][T11696] RDX: 0000000000000000 RSI: 00000000ffbb9bbe RDI: 0000000000000001 [ 139.705377][T11696] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 139.713336][T11696] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 139.721284][T11696] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 139.729246][T11696] [ 139.731549][T11696] Uninit was created at: [ 139.735785][T11696] kmsan_internal_poison_shadow+0x66/0xd0 [ 139.741478][T11696] kmsan_slab_alloc+0x8a/0xe0 [ 139.746131][T11696] __kmalloc_node_track_caller+0xb40/0x1200 [ 139.752000][T11696] __alloc_skb+0x2fd/0xac0 [ 139.756409][T11696] netlink_sendmsg+0x7d3/0x14d0 [ 139.761291][T11696] ____sys_sendmsg+0x12b6/0x1350 [ 139.766220][T11696] __sys_sendmsg+0x451/0x5f0 [ 139.770800][T11696] __ia32_compat_sys_sendmsg+0xed/0x130 [ 139.776347][T11696] do_fast_syscall_32+0x3c7/0x6e0 [ 139.781355][T11696] entry_SYSENTER_compat+0x68/0x77 [ 139.786440][T11696] ===================================================== [ 139.793353][T11696] Disabling lock debugging due to kernel taint [ 139.799481][T11696] Kernel panic - not syncing: panic_on_warn set ... [ 139.806070][T11696] CPU: 0 PID: 11696 Comm: syz-executor420 Tainted: G B 5.6.0-rc2-syzkaller #0 [ 139.816189][T11696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 139.826228][T11696] Call Trace: [ 139.829504][T11696] dump_stack+0x1c9/0x220 [ 139.833816][T11696] panic+0x3d5/0xc3e [ 139.837709][T11696] kmsan_report+0x1df/0x1e0 [ 139.842199][T11696] __msan_warning+0x58/0xa0 [ 139.846684][T11696] ethnl_update_bitset32+0x2c85/0x3860 [ 139.852144][T11696] ? kmsan_get_metadata+0x11d/0x180 [ 139.857343][T11696] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 139.863480][T11696] ? kmsan_memcpy_metadata+0xb/0x10 [ 139.868664][T11696] ? __msan_memcpy+0x43/0x50 [ 139.873262][T11696] ethnl_update_bitset+0x11c/0x130 [ 139.878417][T11696] ethnl_set_linkmodes+0x9f9/0x1430 [ 139.883641][T11696] ? kmsan_get_metadata+0x11d/0x180 [ 139.888875][T11696] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 139.894779][T11696] ? linkmodes_fill_reply+0x5c0/0x5c0 [ 139.900147][T11696] genl_rcv_msg+0x205e/0x2460 [ 139.904831][T11696] netlink_rcv_skb+0x451/0x650 [ 139.909613][T11696] ? genl_unbind+0x380/0x380 [ 139.914196][T11696] genl_rcv+0x63/0x80 [ 139.918161][T11696] netlink_unicast+0xf9e/0x1100 [ 139.922993][T11696] ? genl_pernet_exit+0x90/0x90 [ 139.927827][T11696] netlink_sendmsg+0x1246/0x14d0 [ 139.932755][T11696] ? netlink_getsockopt+0x1440/0x1440 [ 139.938111][T11696] ____sys_sendmsg+0x12b6/0x1350 [ 139.943043][T11696] __sys_sendmsg+0x451/0x5f0 [ 139.947623][T11696] ? __fpregs_load_activate+0x38c/0x3c0 [ 139.953148][T11696] ? kmsan_get_metadata+0x11d/0x180 [ 139.958323][T11696] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 139.964111][T11696] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 139.970163][T11696] ? prepare_exit_to_usermode+0x1ca/0x520 [ 139.975880][T11696] ? kmsan_get_metadata+0x4f/0x180 [ 139.980970][T11696] ? kmsan_get_metadata+0x4f/0x180 [ 139.986059][T11696] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 139.991848][T11696] __ia32_compat_sys_sendmsg+0xed/0x130 [ 139.997388][T11696] ? compat_mc_getsockopt+0x19a0/0x19a0 [ 140.002923][T11696] do_fast_syscall_32+0x3c7/0x6e0 [ 140.007937][T11696] entry_SYSENTER_compat+0x68/0x77 [ 140.013038][T11696] RIP: 0023:0xf7f0ed99 [ 140.017086][T11696] Code: 90 e8 0b 00 00 00 f3 90 0f ae e8 eb f9 8d 74 26 00 89 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 140.036680][T11696] RSP: 002b:00000000ffbb9b4c EFLAGS: 00000282 ORIG_RAX: 0000000000000172 [ 140.045079][T11696] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000240 [ 140.053038][T11696] RDX: 0000000000000000 RSI: 00000000ffbb9bbe RDI: 0000000000000001 [ 140.060994][T11696] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 140.068998][T11696] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 140.076954][T11696] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 140.086400][T11696] Kernel Offset: 0xa400000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 140.097932][T11696] Rebooting in 86400 seconds..