Warning: Permanently added '10.128.0.27' (ECDSA) to the list of known hosts. executing program [ 113.382997][ T8472] ===================================================== [ 113.389955][ T8472] BUG: KMSAN: uninit-value in sk_filter_trim_cap+0x828/0xcc0 [ 113.397346][ T8472] CPU: 0 PID: 8472 Comm: syz-executor467 Not tainted 5.8.0-rc5-syzkaller #0 [ 113.405987][ T8472] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.416075][ T8472] Call Trace: [ 113.419345][ T8472] dump_stack+0x1df/0x240 [ 113.423653][ T8472] kmsan_report+0xf7/0x1e0 [ 113.428084][ T8472] __msan_warning+0x58/0xa0 [ 113.432564][ T8472] sk_filter_trim_cap+0x828/0xcc0 [ 113.437569][ T8472] ? kmsan_get_metadata+0x11d/0x180 [ 113.442741][ T8472] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 113.448567][ T8472] unix_dgram_sendmsg+0x1987/0x3c30 [ 113.453784][ T8472] ? kmsan_get_metadata+0x11d/0x180 [ 113.458968][ T8472] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 113.465023][ T8472] unix_seqpacket_sendmsg+0x26c/0x2e0 [ 113.470371][ T8472] ? unix_dgram_peer_wake_me+0x7e0/0x7e0 [ 113.475983][ T8472] ____sys_sendmsg+0x1370/0x1400 [ 113.480904][ T8472] __sys_sendmmsg+0x60e/0xd80 [ 113.485560][ T8472] ? __local_bh_enable_ip+0x97/0x1d0 [ 113.490826][ T8472] ? sock_setsockopt+0x4be7/0x53c0 [ 113.495916][ T8472] ? security_socket_setsockopt+0x1a6/0x200 [ 113.501787][ T8472] ? kmsan_get_metadata+0x4f/0x180 [ 113.506874][ T8472] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 113.512656][ T8472] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 113.518695][ T8472] ? kmsan_get_metadata+0x11d/0x180 [ 113.523883][ T8472] ? kmsan_get_metadata+0x11d/0x180 [ 113.529068][ T8472] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 113.534888][ T8472] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 113.541018][ T8472] ? __prepare_exit_to_usermode+0x16c/0x4d0 [ 113.546889][ T8472] __se_sys_sendmmsg+0xbd/0xe0 [ 113.551665][ T8472] __x64_sys_sendmmsg+0x56/0x70 [ 113.556497][ T8472] do_syscall_64+0xb0/0x150 [ 113.560978][ T8472] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 113.566857][ T8472] RIP: 0033:0x4402e9 [ 113.570726][ T8472] Code: Bad RIP value. [ 113.574785][ T8472] RSP: 002b:00007ffe1ebab908 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 113.583167][ T8472] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402e9 [ 113.591113][ T8472] RDX: 03fffffffffffe36 RSI: 0000000020001e00 RDI: 0000000000000003 [ 113.599059][ T8472] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 113.607010][ T8472] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401af0 [ 113.614956][ T8472] R13: 0000000000401b80 R14: 0000000000000000 R15: 0000000000000000 [ 113.624298][ T8472] [ 113.626609][ T8472] Uninit was stored to memory at: [ 113.631609][ T8472] kmsan_internal_chain_origin+0xad/0x130 [ 113.637302][ T8472] __msan_chain_origin+0x50/0x90 [ 113.642212][ T8472] ___bpf_prog_run+0x6c64/0x97a0 [ 113.647122][ T8472] __bpf_prog_run32+0x101/0x170 [ 113.651944][ T8472] sk_filter_trim_cap+0x42a/0xcc0 [ 113.656943][ T8472] unix_dgram_sendmsg+0x1987/0x3c30 [ 113.662236][ T8472] unix_seqpacket_sendmsg+0x26c/0x2e0 [ 113.667596][ T8472] ____sys_sendmsg+0x1370/0x1400 [ 113.672507][ T8472] __sys_sendmmsg+0x60e/0xd80 [ 113.677164][ T8472] __se_sys_sendmmsg+0xbd/0xe0 [ 113.681901][ T8472] __x64_sys_sendmmsg+0x56/0x70 [ 113.686728][ T8472] do_syscall_64+0xb0/0x150 [ 113.691209][ T8472] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 113.697068][ T8472] [ 113.699370][ T8472] Local variable ----regs@__bpf_prog_run32 created at: [ 113.706191][ T8472] __bpf_prog_run32+0x87/0x170 [ 113.710928][ T8472] __bpf_prog_run32+0x87/0x170 [ 113.715674][ T8472] ===================================================== [ 113.722575][ T8472] Disabling lock debugging due to kernel taint [ 113.728697][ T8472] Kernel panic - not syncing: panic_on_warn set ... [ 113.735293][ T8472] CPU: 0 PID: 8472 Comm: syz-executor467 Tainted: G B 5.8.0-rc5-syzkaller #0 [ 113.745325][ T8472] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.755376][ T8472] Call Trace: [ 113.758652][ T8472] dump_stack+0x1df/0x240 [ 113.762963][ T8472] panic+0x3d5/0xc3e [ 113.766850][ T8472] kmsan_report+0x1df/0x1e0 [ 113.771344][ T8472] __msan_warning+0x58/0xa0 [ 113.775827][ T8472] sk_filter_trim_cap+0x828/0xcc0 [ 113.780905][ T8472] ? kmsan_get_metadata+0x11d/0x180 [ 113.786081][ T8472] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 113.791864][ T8472] unix_dgram_sendmsg+0x1987/0x3c30 [ 113.797043][ T8472] ? kmsan_get_metadata+0x11d/0x180 [ 113.802219][ T8472] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 113.808273][ T8472] unix_seqpacket_sendmsg+0x26c/0x2e0 [ 113.813626][ T8472] ? unix_dgram_peer_wake_me+0x7e0/0x7e0 [ 113.819237][ T8472] ____sys_sendmsg+0x1370/0x1400 [ 113.824159][ T8472] __sys_sendmmsg+0x60e/0xd80 [ 113.828815][ T8472] ? __local_bh_enable_ip+0x97/0x1d0 [ 113.834084][ T8472] ? sock_setsockopt+0x4be7/0x53c0 [ 113.839172][ T8472] ? security_socket_setsockopt+0x1a6/0x200 [ 113.845041][ T8472] ? kmsan_get_metadata+0x4f/0x180 [ 113.850126][ T8472] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 113.855910][ T8472] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 113.861951][ T8472] ? kmsan_get_metadata+0x11d/0x180 [ 113.867139][ T8472] ? kmsan_get_metadata+0x11d/0x180 [ 113.872321][ T8472] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 113.878111][ T8472] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 113.884248][ T8472] ? __prepare_exit_to_usermode+0x16c/0x4d0 [ 113.890120][ T8472] __se_sys_sendmmsg+0xbd/0xe0 [ 113.894870][ T8472] __x64_sys_sendmmsg+0x56/0x70 [ 113.899701][ T8472] do_syscall_64+0xb0/0x150 [ 113.904183][ T8472] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 113.910045][ T8472] RIP: 0033:0x4402e9 [ 113.913909][ T8472] Code: Bad RIP value. [ 113.917960][ T8472] RSP: 002b:00007ffe1ebab908 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 113.926353][ T8472] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402e9 [ 113.934304][ T8472] RDX: 03fffffffffffe36 RSI: 0000000020001e00 RDI: 0000000000000003 [ 113.942260][ T8472] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 113.950219][ T8472] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401af0 [ 113.958183][ T8472] R13: 0000000000401b80 R14: 0000000000000000 R15: 0000000000000000 [ 113.966230][ T8472] ------------[ cut here ]------------ [ 113.971677][ T8472] kernel BUG at mm/kmsan/kmsan.h:87! [ 113.977155][ T8472] invalid opcode: 0000 [#1] SMP [ 113.982428][ T8472] CPU: 0 PID: 8472 Comm: syz-executor467 Tainted: G B 5.8.0-rc5-syzkaller #0 [ 113.992456][ T8472] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 114.002500][ T8472] RIP: 0010:kmsan_internal_check_memory+0x3c0/0x3d0 [ 114.009060][ T8472] Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b 48 c7 c7 ea 03 2a b4 31 c0 e8 81 fe 44 ff 0f 0b 0f 0b 0f 0b 0f 0b e8 32 3f 8c 0c 0f 0b <0f> 0b 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 83 ff [ 114.028636][ T8472] RSP: 0018:ffffb08340f5f338 EFLAGS: 00010046 [ 114.034672][ T8472] RAX: 0000000000000002 RBX: 00000000041000b1 RCX: 00000000041000b1 [ 114.042615][ T8472] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffb08340f5f414 [ 114.050559][ T8472] RBP: ffffb08340f5f3e0 R08: 0000000000000000 R09: ffffa00defc28210 [ 114.058502][ T8472] R10: 0000000000000000 R11: ffffffffab002730 R12: 0000000000000000 [ 114.066457][ T8472] R13: 0000000000000001 R14: 0000000000000006 R15: 0000000000000001 [ 114.074404][ T8472] FS: 0000000001bea880(0000) GS:ffffa00defc00000(0000) knlGS:0000000000000000 [ 114.083302][ T8472] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 114.089857][ T8472] CR2: 0000000020ab9ff0 CR3: 0000000115966000 CR4: 00000000001406f0 [ 114.097809][ T8472] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 114.105754][ T8472] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 114.113694][ T8472] Call Trace: [ 114.116966][ T8472] kmsan_check_memory+0xd/0x10 [ 114.121704][ T8472] iowrite8+0x99/0x2e0 [ 114.125751][ T8472] pvpanic_panic_notify+0x99/0xc0 [ 114.130749][ T8472] ? pvpanic_mmio_remove+0x60/0x60 [ 114.135841][ T8472] atomic_notifier_call_chain+0x130/0x250 [ 114.141535][ T8472] panic+0x468/0xc3e [ 114.145429][ T8472] kmsan_report+0x1df/0x1e0 [ 114.149919][ T8472] __msan_warning+0x58/0xa0 [ 114.154409][ T8472] sk_filter_trim_cap+0x828/0xcc0 [ 114.159412][ T8472] ? kmsan_get_metadata+0x11d/0x180 [ 114.164582][ T8472] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 114.170359][ T8472] unix_dgram_sendmsg+0x1987/0x3c30 [ 114.175531][ T8472] ? kmsan_get_metadata+0x11d/0x180 [ 114.180702][ T8472] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 114.186754][ T8472] unix_seqpacket_sendmsg+0x26c/0x2e0 [ 114.192108][ T8472] ? unix_dgram_peer_wake_me+0x7e0/0x7e0 [ 114.197714][ T8472] ____sys_sendmsg+0x1370/0x1400 [ 114.202644][ T8472] __sys_sendmmsg+0x60e/0xd80 [ 114.207298][ T8472] ? __local_bh_enable_ip+0x97/0x1d0 [ 114.212558][ T8472] ? sock_setsockopt+0x4be7/0x53c0 [ 114.217647][ T8472] ? security_socket_setsockopt+0x1a6/0x200 [ 114.223510][ T8472] ? kmsan_get_metadata+0x4f/0x180 [ 114.228594][ T8472] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 114.234373][ T8472] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 114.240409][ T8472] ? kmsan_get_metadata+0x11d/0x180 [ 114.245579][ T8472] ? kmsan_get_metadata+0x11d/0x180 [ 114.250755][ T8472] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 114.256534][ T8472] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 114.262661][ T8472] ? __prepare_exit_to_usermode+0x16c/0x4d0 [ 114.268528][ T8472] __se_sys_sendmmsg+0xbd/0xe0 [ 114.273281][ T8472] __x64_sys_sendmmsg+0x56/0x70 [ 114.278105][ T8472] do_syscall_64+0xb0/0x150 [ 114.282597][ T8472] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 114.288459][ T8472] RIP: 0033:0x4402e9 [ 114.292322][ T8472] Code: Bad RIP value. [ 114.296360][ T8472] RSP: 002b:00007ffe1ebab908 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 114.304742][ T8472] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402e9 [ 114.312685][ T8472] RDX: 03fffffffffffe36 RSI: 0000000020001e00 RDI: 0000000000000003 [ 114.320629][ T8472] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 114.328571][ T8472] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401af0 [ 114.336528][ T8472] R13: 0000000000401b80 R14: 0000000000000000 R15: 0000000000000000 [ 114.344477][ T8472] Modules linked in: [ 114.348347][ T8472] ---[ end trace eb55b8a8e412eabd ]--- [ 114.353777][ T8472] RIP: 0010:kmsan_internal_check_memory+0x3c0/0x3d0 [ 114.360335][ T8472] Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b 48 c7 c7 ea 03 2a b4 31 c0 e8 81 fe 44 ff 0f 0b 0f 0b 0f 0b 0f 0b e8 32 3f 8c 0c 0f 0b <0f> 0b 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 83 ff [ 114.379912][ T8472] RSP: 0018:ffffb08340f5f338 EFLAGS: 00010046 [ 114.386036][ T8472] RAX: 0000000000000002 RBX: 00000000041000b1 RCX: 00000000041000b1 [ 114.393979][ T8472] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffb08340f5f414 [ 114.401923][ T8472] RBP: ffffb08340f5f3e0 R08: 0000000000000000 R09: ffffa00defc28210 [ 114.409865][ T8472] R10: 0000000000000000 R11: ffffffffab002730 R12: 0000000000000000 [ 114.417807][ T8472] R13: 0000000000000001 R14: 0000000000000006 R15: 0000000000000001 [ 114.425761][ T8472] FS: 0000000001bea880(0000) GS:ffffa00defc00000(0000) knlGS:0000000000000000 [ 114.434663][ T8472] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 114.441217][ T8472] CR2: 0000000020ab9ff0 CR3: 0000000115966000 CR4: 00000000001406f0 [ 114.449163][ T8472] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 114.457107][ T8472] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 114.465049][ T8472] Kernel panic - not syncing: Fatal exception [ 114.471715][ T8472] Kernel Offset: 0x24c00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 114.483332][ T8472] Rebooting in 86400 seconds..