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: 1 PID: 28317 Comm: syz-executor4 Not tainted 4.9.64-gfbb7468 #94 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801a935c800 task.stack: ffff8801a73c0000 RIP: 0010:[] [ 145.218987] device lo entered promiscuous mode [] sg_read_oxfer drivers/scsi/sg.c:1976 [inline] [] sg_read+0xd0c/0x1440 drivers/scsi/sg.c:520 RSP: 0018:ffff8801a73c7bc0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90001cbf000 RDX: 0000000000000000 RSI: 0000000000000036 RDI: ffff8801aaaca270 RBP: ffff8801a73c7cd0 R08: 0000000000000007 R09: ffffed00351b0429 R10: 0000000000000005 R11: ffffed00351b0428 R12: 0000000000001000 R13: 0000000000000000 R14: ffff8801a8d82120 R15: ffff8801aaaca240 FS: 00007ff81983a700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000960008 CR3: 00000001ab688000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: 000000000000004e ffff8801a73c7d20 ffff8801aaaca258 ffff880100000036 ffffffff814cbdde ffff8801aaaca268 000000000000005a 00000000ffffffff ffff8801d1a24f00 1ffff10034e78f84 00000000201e9fa6 00000000201e9fca Call Trace: [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 8a 06 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5f 28 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 df 05 00 00 48 8b 1b 48 85 db 0f 84 51 03 00 RIP [] sg_read_oxfer drivers/scsi/sg.c:1976 [inline] RIP [] sg_read+0xd0c/0x1440 drivers/scsi/sg.c:520 RSP device lo left promiscuous mode ---[ end trace ffb89b29a140ffb4 ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..