Warning: Permanently added '10.128.10.40' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [  179.243137][ T8246] =====================================================
[  179.250112][ T8246] BUG: KMSAN: uninit-value in radix_tree_lookup+0x409/0x420
[  179.257403][ T8246] CPU: 0 PID: 8246 Comm: syz-executor439 Not tainted 5.10.0-rc4-syzkaller #0
[  179.266155][ T8246] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  179.276332][ T8246] Call Trace:
[  179.279635][ T8246]  dump_stack+0x21c/0x280
[  179.283985][ T8246]  kmsan_report+0xf7/0x1e0
[  179.288403][ T8246]  __msan_warning+0x5f/0xa0
[  179.292906][ T8246]  radix_tree_lookup+0x409/0x420
[  179.297887][ T8246]  qrtr_endpoint_post+0x1172/0x1740
[  179.303122][ T8246]  qrtr_tun_write_iter+0x216/0x370
[  179.308314][ T8246]  ? qrtr_tun_read_iter+0x810/0x810
[  179.313672][ T8246]  vfs_write+0x1087/0x1b10
[  179.318199][ T8246]  ksys_write+0x2af/0x4d0
[  179.322543][ T8246]  __se_sys_write+0x92/0xb0
[  179.327058][ T8246]  __x64_sys_write+0x4a/0x70
[  179.331815][ T8246]  do_syscall_64+0x9f/0x140
[  179.336409][ T8246]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  179.342286][ T8246] RIP: 0033:0x441239
[  179.346174][ T8246] 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
[  179.365778][ T8246] RSP: 002b:00007ffe07a074e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  179.374268][ T8246] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441239
[  179.382229][ T8246] RDX: 00000000000000e4 RSI: 0000000020000000 RDI: 0000000000000003
[  179.390198][ T8246] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8
[  179.398169][ T8246] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000401fe0
[  179.406134][ T8246] R13: 0000000000402070 R14: 0000000000000000 R15: 0000000000000000
[  179.414381][ T8246] 
[  179.416713][ T8246] Uninit was created at:
[  179.420965][ T8246]  kmsan_save_stack_with_flags+0x3c/0x90
[  179.428583][ T8246]  kmsan_alloc_page+0xd3/0x1f0
[  179.433364][ T8246]  __alloc_pages_nodemask+0x84e/0xfb0
[  179.438744][ T8246]  page_frag_alloc+0x35b/0x890
[  179.443599][ T8246]  __napi_alloc_skb+0x1c0/0xab0
[  179.448447][ T8246]  page_to_skb+0x142/0x1640
[  179.452941][ T8246]  receive_mergeable+0xee6/0x5be0
[  179.457972][ T8246]  receive_buf+0x2db/0x2ba0
[  179.462464][ T8246]  virtnet_poll+0xa51/0x1d10
[  179.467074][ T8246]  napi_poll+0x420/0x1010
[  179.471399][ T8246]  net_rx_action+0x35c/0xd40
[  179.476014][ T8246]  __do_softirq+0x1a9/0x6fa
[  179.480503][ T8246] =====================================================
[  179.487433][ T8246] Disabling lock debugging due to kernel taint
[  179.493582][ T8246] Kernel panic - not syncing: panic_on_warn set ...
[  179.500158][ T8246] CPU: 0 PID: 8246 Comm: syz-executor439 Tainted: G    B             5.10.0-rc4-syzkaller #0
[  179.510300][ T8246] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  179.520480][ T8246] Call Trace:
[  179.523781][ T8246]  dump_stack+0x21c/0x280
[  179.528102][ T8246]  panic+0x4c8/0xea7
[  179.532003][ T8246]  ? add_taint+0x17c/0x210
[  179.536435][ T8246]  kmsan_report+0x1da/0x1e0
[  179.540953][ T8246]  __msan_warning+0x5f/0xa0
[  179.545447][ T8246]  radix_tree_lookup+0x409/0x420
[  179.550389][ T8246]  qrtr_endpoint_post+0x1172/0x1740
[  179.555592][ T8246]  qrtr_tun_write_iter+0x216/0x370
[  179.560721][ T8246]  ? qrtr_tun_read_iter+0x810/0x810
[  179.565978][ T8246]  vfs_write+0x1087/0x1b10
[  179.570422][ T8246]  ksys_write+0x2af/0x4d0
[  179.574757][ T8246]  __se_sys_write+0x92/0xb0
[  179.579274][ T8246]  __x64_sys_write+0x4a/0x70
[  179.583953][ T8246]  do_syscall_64+0x9f/0x140
[  179.588458][ T8246]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  179.594342][ T8246] RIP: 0033:0x441239
[  179.598234][ T8246] 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
[  179.617868][ T8246] RSP: 002b:00007ffe07a074e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  179.626303][ T8246] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441239
[  179.634290][ T8246] RDX: 00000000000000e4 RSI: 0000000020000000 RDI: 0000000000000003
[  179.642247][ T8246] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8
[  179.650212][ T8246] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000401fe0
[  179.658236][ T8246] R13: 0000000000402070 R14: 0000000000000000 R15: 0000000000000000
[  179.666727][ T8246] Kernel Offset: disabled
[  179.671087][ T8246] Rebooting in 86400 seconds..