random: sshd: uninitialized urandom read (32 bytes read, 102 bits of entropy available) 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: 1 PID: 3326 Comm: syzkaller952277 Not tainted 4.4.104-ged884eb #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801d55aaf80 task.stack: ffff8801d7968000 RIP: 0010:[] [] sg_read_oxfer /syzkaller/managers/android-44-kasan-gce/kernel/drivers/scsi/sg.c:1986 [inline] RIP: 0010:[] [] sg_read+0x93e/0x1260 /syzkaller/managers/android-44-kasan-gce/kernel/drivers/scsi/sg.c:531 RSP: 0018:ffff8801d796fb20 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8801d601f420 RCX: 000000000000000c RDX: 0000000000000000 RSI: ffff8801d601f444 RDI: ffff8801d5468170 RBP: ffff8801d796fc18 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 1ffff1003af2df2a R12: 0000000000000000 R13: ffff8801d5468140 R14: 0000000000000000 R15: 00000000000000bb FS: 00007f3043921700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002001aff7 CR3: 00000001d94bc000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff8801d796fd80 ffff8801d5468158 ffff8801d796fb78 ffff8801d5468168 00000000000000df ffff8801d796fb78 0000000020fc4000 0000000000001000 1ffff1003af2df6e 0000000020acef45 0000000041b58ab3 ffffffff83fa5dde Call Trace: [] do_loop_readv_writev+0x11c/0x1e0 /syzkaller/managers/android-44-kasan-gce/kernel/fs/read_write.c:680 [] do_readv_writev+0x552/0x660 /syzkaller/managers/android-44-kasan-gce/kernel/fs/read_write.c:810 [] vfs_readv+0x5a/0xa0 /syzkaller/managers/android-44-kasan-gce/kernel/fs/read_write.c:834 [] SYSC_readv /syzkaller/managers/android-44-kasan-gce/kernel/fs/read_write.c:860 [inline] [] SyS_readv+0xd3/0x260 /syzkaller/managers/android-44-kasan-gce/kernel/fs/read_write.c:852 [] entry_SYSCALL_64_fastpath+0x16/0x76 Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 a9 08 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 65 28 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 7d 08 00 00 49 8b 04 24 48 85 c0 0f 84 ee 04 RIP [] sg_read_oxfer /syzkaller/managers/android-44-kasan-gce/kernel/drivers/scsi/sg.c:1986 [inline] RIP [] sg_read+0x93e/0x1260 /syzkaller/managers/android-44-kasan-gce/kernel/drivers/scsi/sg.c:531 RSP ---[ end trace 9aefe84434e645e2 ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..