| TITLE: BUG: unable to handle kernel paging request in snd_pcm_oss_write |
| |
| [ 522.218303] BUG: unable to handle kernel paging request at ffffc90001691000 |
| [ 522.225453] IP: memset_erms+0x9/0x10 |
| [ 522.229149] PGD 1dad2c067 P4D 1dad2c067 PUD 1dad2d067 PMD 1c6a8f067 PTE 0 |
| [ 522.236059] Oops: 0002 [#1] SMP KASAN |
| [ 522.239836] Dumping ftrace buffer: |
| [ 522.243356] (ftrace buffer empty) |
| [ 522.247074] Modules linked in: |
| [ 522.250283] CPU: 1 PID: 5739 Comm: syzkaller592073 Not tainted 4.15.0-rc8-mm1+ #57 |
| [ 522.257973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| executing program |
| executing program |
| [ 522.267311] RIP: 0010:memset_erms+0x9/0x10 |
| [ 522.271526] RSP: 0018:ffff8801cbbdfb78 EFLAGS: 00010246 |
| [ 522.276881] RAX: fffff520002d3f00 RBX: ffffc90001691000 RCX: 000000000000ee51 |
| [ 522.284145] RDX: 000000000000ee51 RSI: 0000000000000000 RDI: ffffc90001691000 |
| [ 522.291415] RBP: ffff8801cbbdfb98 R08: fffff520002d3fcb R09: ffffc90001691000 |
| [ 522.298677] R10: 0000000000001dcb R11: fffff520002d3fca R12: 000000000000ee51 |
| [ 522.305946] R13: 0000000000000000 R14: 00007ffffffff000 R15: 000000002001be51 |
| executing program |
| executing program |
| executing program |
| executing program |
| [ 522.313211] FS: 00007f88ae7d7700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 |
| [ 522.321460] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 |
| [ 522.327365] CR2: ffffc90001691000 CR3: 00000001ccefa005 CR4: 00000000001606e0 |
| [ 522.334660] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 |
| [ 522.341921] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 |
| [ 522.349186] Call Trace: |
| [ 522.351767] ? memset+0x31/0x40 |
| [ 522.355053] _copy_from_user+0xe9/0x110 |
| [ 522.359035] snd_pcm_oss_write+0x438/0x880 |
| [ 522.363274] ? snd_pcm_oss_ioctl_compat+0x30/0x30 |
| executing program |
| [ 522.368115] ? snd_pcm_oss_ioctl_compat+0x30/0x30 |
| [ 522.372949] __vfs_write+0xef/0x970 |
| [ 522.376572] ? rcu_note_context_switch+0x710/0x710 |
| [ 522.381498] ? kernel_read+0x120/0x120 |
| [ 522.385376] ? __might_sleep+0x95/0x190 |
| [ 522.389349] ? _cond_resched+0x14/0x30 |
| [ 522.393234] ? __inode_security_revalidate+0xd9/0x130 |
| [ 522.398412] ? avc_policy_seqno+0x9/0x20 |
| [ 522.402471] ? selinux_file_permission+0x82/0x460 |
| [ 522.407308] ? security_file_permission+0x89/0x1e0 |
| [ 522.412226] ? rw_verify_area+0xe5/0x2b0 |
| [ 522.416284] ? __fdget_raw+0x20/0x20 |
| [ 522.419989] vfs_write+0x189/0x510 |
| [ 522.423518] SyS_write+0xef/0x220 |
| [ 522.426977] ? SyS_read+0x220/0x220 |
| [ 522.430594] ? trace_hardirqs_on_caller+0x421/0x5c0 |
| [ 522.436898] ? trace_hardirqs_on_thunk+0x1a/0x1c |
| [ 522.441658] entry_SYSCALL_64_fastpath+0x29/0xa0 |
| [ 522.446401] RIP: 0033:0x44a559 |
| [ 522.449578] RSP: 002b:00007f88ae7d6da8 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 |
| [ 522.457274] RAX: ffffffffffffffda RBX: 00000000006dcc24 RCX: 000000000044a559 |
| [ 522.464535] RDX: 000000000000fe51 RSI: 000000002000c000 RDI: 0000000000000003 |
| [ 522.471787] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 |
| [ 522.479030] R10: 0000000000000000 R11: 0000000000000293 R12: 00000000006dcc20 |
| [ 522.486271] R13: 7073642f7665642f R14: 00800000c0045006 R15: 0000000000000001 |
| [ 522.493521] Code: 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 <f3> aa 4c 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 |
| [ 522.512622] RIP: memset_erms+0x9/0x10 RSP: ffff8801cbbdfb78 |
| [ 522.518301] CR2: ffffc90001691000 |
| [ 522.521730] ---[ end trace 8f421641f3e10f44 ]--- |
| [ 522.526455] Kernel panic - not syncing: Fatal exception |
| [ 522.532270] Dumping ftrace buffer: |
| [ 522.535780] (ftrace buffer empty) |
| [ 522.539475] Kernel Offset: disabled |
| [ 522.543071] Rebooting in 86400 seconds.. |
