kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 3813 Comm: syzkaller127191 Not tainted 4.4.120-gd63fdf6 #28 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801c4cd3000 task.stack: ffff8801c4d60000 RIP: 0010:[] [] sg_remove_scat.isra.17+0x17b/0x2d0 drivers/scsi/sg.c:1949 RSP: 0018:ffff8801c4d67b20 EFLAGS: 00010202 RAX: 1ffff1003878702d RBX: ffff8801c3c38158 RCX: 0000000000000001 RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffff8801d4948874 RBP: ffff8801c4d67b70 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 1ffff100389acf3e R12: 0000000000000001 R13: 0000000000000008 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f736510f700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000045a470 CR3: 00000001d1d36000 CR4: 0000000000160670 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff8801c3c38170 ffffed003878702b ffffed003878702e ffff8801c3c38168 ffff8801d4948858 ffff8801c3c38140 0000000000000000 0000000000000000 0000000000000000 ffff8801c3c38238 ffff8801c4d67bb0 ffffffff825b89d5 Call Trace: [] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1835 [] sg_read+0xa1b/0x1490 drivers/scsi/sg.c:537 [] __vfs_read+0x103/0x440 fs/read_write.c:432 [] vfs_read+0x123/0x3a0 fs/read_write.c:454 [] SYSC_read fs/read_write.c:569 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:562 [] entry_SYSCALL_64_fastpath+0x1c/0x98 Code: 45 b8 eb 3e e8 a7 87 da 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.17+0x17b/0x2d0 drivers/scsi/sg.c:1949 RSP ---[ end trace 4581fc0daa4f111e ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..