[46528.709303] BUG: unable to handle kernel NULL pointer dereference at 0000000000000002 [46528.709315] IP: [] mmc_ioctl_cdrom_read_audio+0x23a/0x3e0 [cdrom] [46528.709332] PGD ada4a067 PUD ada96067 PMD 0 [46528.709339] Oops: 0000 [#1] SMP [46528.709345] Modules linked in: rfcomm cpufreq_stats cpufreq_userspace cpufreq_conservative cpufreq_powersave bnep nfsd auth_rpcgss oid_registry nfs_acl nfs lockd fscache sunrpc ecb btusb bluetooth 6lowpan_iphc rfkill kvm_amd kvm crc32_pclmul snd_ens1371 snd_rawmidi snd_seq_device snd_ac97_codec snd_pcm aesni_intel hid_generic aes_x86_64 lrw ppdev snd_timer snd vmw_balloon soundcore evdev gf128mul glue_helper ablk_helper ac97_bus cryptd serio_raw pcspkr gameport battery parport_pc parport vmwgfx ttm drm_kms_helper usbhid hid processor drm thermal_sys shpchp i2c_piix4 i2c_core button ac vmw_vmci fuse autofs4 ext4 crc16 mbcache jbd2 dm_mod sr_mod cdrom ata_generic sg sd_mod crc_t10dif crct10dif_generic crct10dif_pclmul crct10dif_common crc32c_intel psmouse ata_piix uhci_hcd ehci_pci mptspi scsi_transport_spi [46528.709501] mptscsih ehci_hcd mptbase usbcore e1000 libata usb_common scsi_mod floppy [46528.709518] CPU: 0 PID: 2265 Comm: kscd Not tainted 3.16.0-4-amd64 #1 Debian 3.16.7-ckt25-2 [46528.709524] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 05/20/2014 [46528.709529] task: ffff8800aacee250 ti: ffff8800b9db0000 task.ti: ffff8800b9db0000 [46528.709533] RIP: 0010:[] [] mmc_ioctl_cdrom_read_audio+0x23a/0x3e0 [cdrom] [46528.709551] RSP: 0018:ffff8800b9db3d48 EFLAGS: 00010282 [46528.709556] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [46528.709560] RDX: 0000000000003a96 RSI: 0000000000000206 RDI: ffff8800b9db3ca8 [46528.709713] RBP: 00000000000000c8 R08: ffff8800b9db0000 R09: 000000000000bf80 [46528.709724] R10: 0000000000009e35 R11: 0000000000000004 R12: ffff8800371908b8 [46528.709728] R13: 00000000fffffffb R14: ffff8800aad4ad00 R15: ffff8800bb66a010 [46528.709733] FS: 00007fab3de87780(0000) GS:ffff88013a600000(0000) knlGS:0000000000000000 [46528.709737] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [46528.709741] CR2: 0000000000000002 CR3: 00000000b98b0000 CR4: 00000000000407f0 [46528.709856] Stack: [46528.709863] ffff88013864a7c8 00000000008e0ed0 0000000000000930 00000001ba42e000 [46528.709871] 00000001000000c8 00000000008e0ed0 00000001000000c8 0000000000000001 [46528.709880] 00000000008e0ed0 00000000ffffffe7 000000000000530e 0000000000645d60 [46528.709890] Call Trace: [46528.709912] [] ? cdrom_ioctl+0xd38/0x1189 [cdrom] [46528.709929] [] ? sr_block_ioctl+0x5c/0xc0 [sr_mod] [46528.709954] [] ? blkdev_ioctl+0x214/0x7d0 [46528.709963] [] ? block_ioctl+0x3d/0x40 [46528.709971] [] ? do_vfs_ioctl+0x2cf/0x4b0 [46528.709978] [] ? SyS_ioctl+0x81/0xa0 [46528.709988] [] ? system_call_fast_compare_end+0x10/0x15 [46528.709994] Code: 98 3a 00 00 66 41 89 87 20 01 00 00 49 8b 74 24 18 4d 8b 77 68 e8 27 15 0f e1 85 c0 74 19 49 8b 87 30 01 00 00 41 bd fb ff ff ff <0f> b6 40 02 83 e0 0f 41 88 44 24 60 4c 89 f7 e8 c2 0d 0f e1 85 [46528.710056] RIP [] mmc_ioctl_cdrom_read_audio+0x23a/0x3e0 [cdrom] [46528.710067] RSP [46528.710070] CR2: 0000000000000002 [46528.710075] ---[ end trace 6044e75235d4e63a ]---