Warning: Permanently added '10.128.0.222' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [  140.345814][ T8267] =====================================================
[  140.352954][ T8267] BUG: KMSAN: kernel-infoleak in kmsan_copy_to_user+0x9c/0xb0
[  140.360454][ T8267] CPU: 1 PID: 8267 Comm: syz-executor275 Not tainted 5.10.0-rc4-syzkaller #0
[  140.369193][ T8267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  140.379383][ T8267] Call Trace:
[  140.382687][ T8267]  dump_stack+0x21c/0x280
[  140.387033][ T8267]  kmsan_report+0xf7/0x1e0
[  140.391459][ T8267]  kmsan_internal_check_memory+0x484/0x520
[  140.397374][ T8267]  ? kmsan_get_metadata+0x116/0x180
[  140.402574][ T8267]  kmsan_copy_to_user+0x9c/0xb0
[  140.407469][ T8267]  _copy_to_user+0x16e/0x240
[  140.412062][ T8267]  vmci_host_unlocked_ioctl+0x3486/0x59a0
[  140.417784][ T8267]  ? __msan_metadata_ptr_for_load_2+0x10/0x20
[  140.423836][ T8267]  ? do_vfs_ioctl+0x1187/0x3570
[  140.428669][ T8267]  ? kmsan_get_shadow_origin_ptr+0x84/0xb0
[  140.434460][ T8267]  ? kmsan_get_metadata+0x116/0x180
[  140.439672][ T8267]  ? vmci_host_poll+0x3d0/0x3d0
[  140.444536][ T8267]  __se_sys_ioctl+0x311/0x4d0
[  140.449220][ T8267]  __x64_sys_ioctl+0x4a/0x70
[  140.453813][ T8267]  do_syscall_64+0x9f/0x140
[  140.458338][ T8267]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  140.464231][ T8267] RIP: 0033:0x443f19
[  140.468136][ T8267] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[  140.487726][ T8267] RSP: 002b:00007ffeaed45fc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  140.496147][ T8267] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000443f19
[  140.504115][ T8267] RDX: 0000000020001540 RSI: 00000000000007b1 RDI: 0000000000000003
[  140.512087][ T8267] RBP: 00000000006ce018 R08: 00000000004002c8 R09: 00000000004002c8
[  140.520057][ T8267] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000404cc0
[  140.528029][ T8267] R13: 0000000000404d50 R14: 0000000000000000 R15: 0000000000000000
[  140.536012][ T8267] 
[  140.538338][ T8267] Uninit was created at:
[  140.542579][ T8267]  kmsan_internal_poison_shadow+0x5c/0xf0
[  140.548280][ T8267]  kmsan_slab_alloc+0x8d/0xe0
[  140.552955][ T8267]  __kmalloc+0x2f0/0x530
[  140.557194][ T8267]  vmci_ctx_get_chkpt_state+0x6a0/0xf30
[  140.562721][ T8267]  vmci_host_unlocked_ioctl+0x2e02/0x59a0
[  140.568422][ T8267]  __se_sys_ioctl+0x311/0x4d0
[  140.573084][ T8267]  __x64_sys_ioctl+0x4a/0x70
[  140.577655][ T8267]  do_syscall_64+0x9f/0x140
[  140.582147][ T8267]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  140.588022][ T8267] 
[  140.590346][ T8267] Bytes 8-15 of 16 are uninitialized
[  140.595621][ T8267] Memory access of size 16 starts at ffff8881248eec00
[  140.602358][ T8267] Data copied to user address 0000000020000540
[  140.608489][ T8267] =====================================================
[  140.615418][ T8267] Disabling lock debugging due to kernel taint
[  140.621570][ T8267] Kernel panic - not syncing: panic_on_warn set ...
[  140.628163][ T8267] CPU: 1 PID: 8267 Comm: syz-executor275 Tainted: G    B             5.10.0-rc4-syzkaller #0
[  140.638306][ T8267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  140.648348][ T8267] Call Trace:
[  140.651641][ T8267]  dump_stack+0x21c/0x280
[  140.656034][ T8267]  panic+0x4c8/0xea7
[  140.659968][ T8267]  ? add_taint+0x17c/0x210
[  140.664371][ T8267]  kmsan_report+0x1da/0x1e0
[  140.668864][ T8267]  kmsan_internal_check_memory+0x484/0x520
[  140.674789][ T8267]  ? kmsan_get_metadata+0x116/0x180
[  140.679978][ T8267]  kmsan_copy_to_user+0x9c/0xb0
[  140.684836][ T8267]  _copy_to_user+0x16e/0x240
[  140.689433][ T8267]  vmci_host_unlocked_ioctl+0x3486/0x59a0
[  140.695158][ T8267]  ? __msan_metadata_ptr_for_load_2+0x10/0x20
[  140.701219][ T8267]  ? do_vfs_ioctl+0x1187/0x3570
[  140.706071][ T8267]  ? kmsan_get_shadow_origin_ptr+0x84/0xb0
[  140.711893][ T8267]  ? kmsan_get_metadata+0x116/0x180
[  140.717109][ T8267]  ? vmci_host_poll+0x3d0/0x3d0
[  140.723351][ T8267]  __se_sys_ioctl+0x311/0x4d0
[  140.728015][ T8267]  __x64_sys_ioctl+0x4a/0x70
[  140.732607][ T8267]  do_syscall_64+0x9f/0x140
[  140.737106][ T8267]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  140.742976][ T8267] RIP: 0033:0x443f19
[  140.746856][ T8267] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[  140.766479][ T8267] RSP: 002b:00007ffeaed45fc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  140.774915][ T8267] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000443f19
[  140.782876][ T8267] RDX: 0000000020001540 RSI: 00000000000007b1 RDI: 0000000000000003
[  140.790836][ T8267] RBP: 00000000006ce018 R08: 00000000004002c8 R09: 00000000004002c8
[  140.798795][ T8267] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000404cc0
[  140.806752][ T8267] R13: 0000000000404d50 R14: 0000000000000000 R15: 0000000000000000
[  140.815464][ T8267] Kernel Offset: disabled
[  140.819801][ T8267] Rebooting in 86400 seconds..