Warning: Permanently added '10.128.0.54' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 50.411280][ T3600] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN [ 50.423116][ T3600] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 50.431518][ T3600] CPU: 0 PID: 3600 Comm: syz-executor728 Not tainted 5.16.0-rc5-syzkaller #0 [ 50.440258][ T3600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.450409][ T3600] RIP: 0010:sg_alloc_append_table_from_pages+0x8a6/0xd00 [ 50.457425][ T3600] Code: 01 f0 ff ff 0f 83 24 02 00 00 8b 6c 24 18 48 8b 44 24 70 29 c5 c1 e5 0c 2b 6c 24 14 89 c0 49 8d 5c c5 00 48 89 d8 48 c1 e8 03 <80> 3c 10 00 74 08 48 89 df e8 3c a6 bc fd 4c 8b 2b 89 eb 4c 8b 74 [ 50.477061][ T3600] RSP: 0018:ffffc90001f9fbc0 EFLAGS: 00010202 [ 50.483113][ T3600] RAX: 0000000000000002 RBX: 0000000000000010 RCX: ffff888023e9ba00 [ 50.491058][ T3600] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88801ac99da0 [ 50.499004][ T3600] RBP: 0000000000001000 R08: dffffc0000000000 R09: ffff88801ac99d80 [ 50.506952][ T3600] R10: ffffed10035933b4 R11: 0000000000000000 R12: ffff88801ac99d80 [ 50.514898][ T3600] R13: 0000000000000010 R14: 0000000000000001 R15: 0000000000000000 [ 50.522847][ T3600] FS: 000055555575f300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 50.531753][ T3600] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.538313][ T3600] CR2: 0000000020005b4c CR3: 00000000750e6000 CR4: 00000000003506f0 [ 50.546437][ T3600] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.554383][ T3600] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.562330][ T3600] Call Trace: [ 50.565587][ T3600] [ 50.568498][ T3600] sg_alloc_table_from_pages_segment+0xb7/0x350 [ 50.574718][ T3600] ? sg_alloc_append_table_from_pages+0xd00/0xd00 [ 50.581106][ T3600] ? kmem_cache_alloc_trace+0x9d/0x330 [ 50.586537][ T3600] ? get_sg_table+0x76/0x150 [ 50.591103][ T3600] get_sg_table+0xd9/0x150 [ 50.595494][ T3600] begin_cpu_udmabuf+0xf5/0x160 [ 50.600319][ T3600] dma_buf_begin_cpu_access+0xd8/0x170 [ 50.605753][ T3600] dma_buf_ioctl+0x26b/0x390 [ 50.610319][ T3600] ? dma_buf_poll+0x680/0x680 [ 50.614970][ T3600] ? vtime_user_exit+0x2b2/0x3e0 [ 50.619885][ T3600] ? bpf_lsm_file_ioctl+0x5/0x10 [ 50.624796][ T3600] ? security_file_ioctl+0x9d/0xb0 [ 50.629881][ T3600] ? dma_buf_poll+0x680/0x680 [ 50.634579][ T3600] __se_sys_ioctl+0xfb/0x170 [ 50.639145][ T3600] do_syscall_64+0x44/0xd0 [ 50.643650][ T3600] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 50.649518][ T3600] RIP: 0033:0x7f2688148069 [ 50.653912][ T3600] 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 [ 50.673489][ T3600] RSP: 002b:00007ffd87c0c2c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 50.681872][ T3600] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2688148069 [ 50.689822][ T3600] RDX: 0000000020000000 RSI: 0000000040086200 RDI: 0000000000000004 [ 50.697778][ T3600] RBP: 00007f268810c050 R08: 0000000000000000 R09: 0000000000000000 [ 50.705728][ T3600] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f268810c0e0 [ 50.713672][ T3600] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 50.721627][ T3600] [ 50.724624][ T3600] Modules linked in: [ 50.728701][ T3600] ---[ end trace 1ab4586466201c7b ]--- [ 50.734436][ T3600] RIP: 0010:sg_alloc_append_table_from_pages+0x8a6/0xd00 [ 50.741692][ T3600] Code: 01 f0 ff ff 0f 83 24 02 00 00 8b 6c 24 18 48 8b 44 24 70 29 c5 c1 e5 0c 2b 6c 24 14 89 c0 49 8d 5c c5 00 48 89 d8 48 c1 e8 03 <80> 3c 10 00 74 08 48 89 df e8 3c a6 bc fd 4c 8b 2b 89 eb 4c 8b 74 [ 50.761311][ T3600] RSP: 0018:ffffc90001f9fbc0 EFLAGS: 00010202 [ 50.767372][ T3600] RAX: 0000000000000002 RBX: 0000000000000010 RCX: ffff888023e9ba00 [ 50.775353][ T3600] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88801ac99da0 [ 50.783331][ T3600] RBP: 0000000000001000 R08: dffffc0000000000 R09: ffff88801ac99d80 [ 50.791330][ T3600] R10: ffffed10035933b4 R11: 0000000000000000 R12: ffff88801ac99d80 [ 50.799306][ T3600] R13: 0000000000000010 R14: 0000000000000001 R15: 0000000000000000 [ 50.807299][ T3600] FS: 000055555575f300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 50.816246][ T3600] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.822844][ T3600] CR2: 000055bb65729db0 CR3: 00000000750e6000 CR4: 00000000003506e0 [ 50.830923][ T3600] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.838914][ T3600] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.847101][ T3600] Kernel panic - not syncing: Fatal exception [ 50.853200][ T3600] Kernel Offset: disabled [ 50.857503][ T3600] Rebooting in 86400 seconds..