DUID 00:04:bb:a2:40:ae:48:ac:17:b5:4c:fd:37:63:df:39:12:a9 forked to background, child pid 3182 [ 30.933926][ T3183] 8021q: adding VLAN 0 to HW filter on device bond0 [ 30.943094][ T3183] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.166' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 51.799048][ T3597] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN [ 51.810894][ T3597] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 51.819376][ T3597] CPU: 0 PID: 3597 Comm: syz-executor804 Not tainted 5.16.0-rc8-syzkaller #0 [ 51.828160][ T3597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.838668][ T3597] RIP: 0010:sg_alloc_append_table_from_pages+0x821/0xdb0 [ 51.845696][ T3597] Code: 0c 24 48 8b 4c 24 48 48 39 c8 48 0f 46 c8 89 f0 4c 8d 3c c7 48 89 4c 24 30 48 b9 00 00 00 00 00 fc ff df 4c 89 f8 48 c1 e8 03 <80> 3c 08 00 0f 85 24 05 00 00 4d 8b 3f 4c 89 e0 31 ff 83 e0 03 48 [ 51.865284][ T3597] RSP: 0018:ffffc900027efc48 EFLAGS: 00010202 [ 51.871332][ T3597] RAX: 0000000000000002 RBX: 0000000000000001 RCX: dffffc0000000000 [ 51.879334][ T3597] RDX: ffff8880235f1d00 RSI: 0000000000000000 RDI: 0000000000000010 [ 51.887297][ T3597] RBP: 00000000fffff000 R08: fffffffffffff000 R09: ffff88807fb5dec0 [ 51.895274][ T3597] R10: ffffffff83d8ba40 R11: 0000000000000001 R12: 0000000000000002 [ 51.903344][ T3597] R13: ffff88807fb5dec0 R14: 0000000000000000 R15: 0000000000000010 [ 51.911306][ T3597] FS: 000055555727c300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 51.920235][ T3597] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.926808][ T3597] CR2: 0000000020005b4c CR3: 000000001c5b8000 CR4: 00000000003506f0 [ 51.934857][ T3597] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.942820][ T3597] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.950782][ T3597] Call Trace: [ 51.954046][ T3597] [ 51.956970][ T3597] sg_alloc_table_from_pages_segment+0xc9/0x260 [ 51.963208][ T3597] ? sg_alloc_append_table_from_pages+0xdb0/0xdb0 [ 51.969628][ T3597] ? rcu_read_lock_sched_held+0x3a/0x70 [ 51.975182][ T3597] get_sg_table.isra.0+0xbb/0x160 [ 51.980201][ T3597] begin_cpu_udmabuf+0x130/0x1d0 [ 51.985132][ T3597] ? map_udmabuf+0xa0/0xa0 [ 51.989542][ T3597] dma_buf_begin_cpu_access+0xfd/0x1d0 [ 51.994996][ T3597] dma_buf_ioctl+0x29a/0x380 [ 51.999581][ T3597] ? dma_buf_begin_cpu_access+0x1d0/0x1d0 [ 52.005384][ T3597] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 52.011628][ T3597] ? dma_buf_begin_cpu_access+0x1d0/0x1d0 [ 52.017432][ T3597] __x64_sys_ioctl+0x193/0x200 [ 52.022213][ T3597] do_syscall_64+0x35/0xb0 [ 52.026637][ T3597] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 52.032531][ T3597] RIP: 0033:0x7fe4cd51a069 [ 52.036937][ T3597] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 52.056543][ T3597] RSP: 002b:00007ffd0b215ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.064947][ T3597] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe4cd51a069 [ 52.072907][ T3597] RDX: 0000000020000000 RSI: 0000000040086200 RDI: 0000000000000004 [ 52.080869][ T3597] RBP: 00007fe4cd4de050 R08: 0000000000000000 R09: 0000000000000000 [ 52.088921][ T3597] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe4cd4de0e0 [ 52.096902][ T3597] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 52.104865][ T3597] [ 52.107901][ T3597] Modules linked in: [ 52.112021][ T3597] ---[ end trace 2b4610e797639cdf ]--- [ 52.117660][ T3597] RIP: 0010:sg_alloc_append_table_from_pages+0x821/0xdb0 [ 52.124708][ T3597] Code: 0c 24 48 8b 4c 24 48 48 39 c8 48 0f 46 c8 89 f0 4c 8d 3c c7 48 89 4c 24 30 48 b9 00 00 00 00 00 fc ff df 4c 89 f8 48 c1 e8 03 <80> 3c 08 00 0f 85 24 05 00 00 4d 8b 3f 4c 89 e0 31 ff 83 e0 03 48 [ 52.144348][ T3597] RSP: 0018:ffffc900027efc48 EFLAGS: 00010202 [ 52.150402][ T3597] RAX: 0000000000000002 RBX: 0000000000000001 RCX: dffffc0000000000 [ 52.158386][ T3597] RDX: ffff8880235f1d00 RSI: 0000000000000000 RDI: 0000000000000010 [ 52.166379][ T3597] RBP: 00000000fffff000 R08: fffffffffffff000 R09: ffff88807fb5dec0 [ 52.174527][ T3597] R10: ffffffff83d8ba40 R11: 0000000000000001 R12: 0000000000000002 [ 52.182590][ T3597] R13: ffff88807fb5dec0 R14: 0000000000000000 R15: 0000000000000010 [ 52.190607][ T3597] FS: 000055555727c300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 52.199650][ T3597] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.206263][ T3597] CR2: 0000556e22ed16c0 CR3: 000000001c5b8000 CR4: 00000000003506e0 [ 52.214401][ T3597] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.222359][ T3597] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.230503][ T3597] Kernel panic - not syncing: Fatal exception [ 52.236621][ T3597] Kernel Offset: disabled [ 52.240937][ T3597] Rebooting in 86400 seconds..