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: 10452 Comm: syz-executor6 Not tainted 4.9.86-g00db063 #52 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801adbe4800 task.stack: ffff8801adb00000 RIP: 0010:[] [] sg_remove_scat.isra.19+0x17b/0x2d0 drivers/scsi/sg.c:1939 RSP: 0018:ffff8801adb07a80 EFLAGS: 00010206 RAX: 1ffff10039fd144d RBX: ffff8801cfe8a258 RCX: 0000000000000003 RDX: 0000000000000018 RSI: ffffc90003eed000 RDI: ffff8801cff0801c RBP: ffff8801adb07ad0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000003 R13: 0000000000000018 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f77e420d700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000a3f228 CR3: 00000001d38b4000 CR4: 0000000000160670 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff8801cfe8a270 ffffed0039fd144b ffffed0039fd144e ffff8801cfe8a268 ffff8801cff08000 ffff8801cfe8a240 0000000000000000 0000000000000000 0000000000000000 ffff8801cfe8a338 ffff8801adb07b10 ffffffff826692c5 Call Trace: [] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1825 [] sg_new_read.isra.20+0x39/0x3e0 drivers/scsi/sg.c:566 [] sg_read+0x8b7/0x1440 drivers/scsi/sg.c:455 [] __vfs_read+0x103/0x670 fs/read_write.c:449 [] vfs_read+0x11e/0x380 fs/read_write.c:472 [] SYSC_read fs/read_write.c:588 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:581 [] do_syscall_64+0x1a4/0x490 arch/x86/entry/common.c:282 [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Code: 45 b8 eb 3e e8 47 25 d0 fe 48 8b 45 c8 48 c1 e8 03 42 80 3c 38 00 0f 85 3a 01 00 00 4c 8b 73 10 4b 8d 14 2e 48 89 d1 48 c1 e9 03 <42> 80 3c 39 00 0f 85 0b 01 00 00 48 8b 12 49 83 c5 08 48 85 d2 RIP [] sg_remove_scat.isra.19+0x17b/0x2d0 drivers/scsi/sg.c:1939 RSP ---[ end trace 7febee78e646a88b ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..