sg_write: data in/out 44282/2147479506 bytes for SCSI command 0xf7-- guessing data in; program syz-executor6 not setting count and/or reply_len properly 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: 9374 Comm: syz-executor6 Not tainted 4.9.76-g9154940 #10 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801c6374800 task.stack: ffff8801b28f0000 RIP: 0010:[] [] sg_read_oxfer drivers/scsi/sg.c:1976 [inline] RIP: 0010:[] [] sg_read+0xd0c/0x1440 drivers/scsi/sg.c:520 RSP: 0018:ffff8801b28f7ac0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff826688c3 RDX: 0000000000000000 RSI: ffffc90002b21000 RDI: ffff8801b2992270 RBP: ffff8801b28f7bc8 R08: 0000000000000000 R09: ffffed0038c55fc1 R10: 0000000000000005 R11: ffffed0038c55fc0 R12: 0000000000001000 R13: 0000000000000000 R14: ffff8801c62afde0 R15: ffff8801b2992240 FS: 00007f72e1133700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020d27000 CR3: 00000001cf14a000 CR4: 0000000000160670 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff8801d4e46b80 ffff8801b28f7af0 ffff8801b2992258 ffff880100000089 0000000000000000 ffff8801b2992268 00000000000000ad 0000000000000246 ffff8801d15d2a00 1ffff1003651ef64 00000000201dc000 00000000201dc024 Call Trace: [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 [] do_readv+0xe6/0x250 fs/read_write.c:924 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 [] entry_SYSCALL_64_fastpath+0x23/0xe2 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 ---[ end trace dee101e455ee2c74 ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..