IPVS: Creating netns size=2536 id=14 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 13494 Comm: syz-executor2 Not tainted 4.9.44-g6dda7ac #31 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801d7141800 task.stack: ffff8801d8d08000 RIP: 0010:[] [] bio_copy_user_iov+0x5fa/0xea0 block/bio.c:1205 RSP: 0018:ffff8801d8d0f590 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8801cb016300 RDI: ffff8801d8d0f9e4 RBP: ffff8801d8d0f6a0 R08: ffffed0039602c71 R09: ffff8801cb016300 R10: 0000000000000011 R11: ffffed0039602c70 R12: 0000000000000026 R13: ffff8801d8d0f9d8 R14: 0000000000000026 R15: dffffc0000000000 FS: 00007f8b8101f700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020006fb0 CR3: 00000001d1e56000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffffffff81e42dff ffffed003aa4e90f ffff8801d527487c ffff8801c98ef7e0 1ffff1003b1a1ebf 0100000002080020 ffff880100000001 ffff8801d5274128 ffff8801d8d0f9d8 ffff8801cb016300 ffff8801d8d0f768 0000000000000000 Call Trace: [] __blk_rq_map_user_iov block/blk-map.c:56 [inline] [] blk_rq_map_user_iov+0x237/0x790 block/blk-map.c:133 [] blk_rq_map_user+0x111/0x1a0 block/blk-map.c:163 [] sg_start_req drivers/scsi/sg.c:1766 [inline] [] sg_common_write.isra.24+0xc1a/0x17c0 drivers/scsi/sg.c:775 [] sg_write+0x688/0xad0 drivers/scsi/sg.c:678 [] __vfs_write+0x103/0x680 fs/read_write.c:510 [] vfs_write+0x170/0x4e0 fs/read_write.c:560 [] SYSC_write fs/read_write.c:607 [inline] [] SyS_write+0xd9/0x1b0 fs/read_write.c:599 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Code: 89 e8 48 c1 e8 03 42 80 3c 38 00 0f 85 5f 08 00 00 89 d8 49 8b 4d 00 99 f7 bd 20 ff ff ff 48 98 48 8d 04 c1 48 89 c1 48 c1 e9 03 <42> 80 3c 39 00 0f 85 47 08 00 00 48 63 d2 83 c3 01 48 c1 e2 06 RIP [] bio_copy_user_iov+0x5fa/0xea0 block/bio.c:1205 RSP ---[ end trace 8e22bced65287b1a ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..