BUG: unable to handle kernel NULL pointer dereference at 00000004

Bug #954157 reported by Riccardo Mollo
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
udisks (Ubuntu)
New
Undecided
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Bug Description

As I unmounted and unplugged my USB pendrive, this happened:

[ 3933.078363] usb 2-1.5: USB disconnect, device number 3
[ 3933.080337] scsi 8:0:0:0: killing request
[ 3933.080424] BUG: unable to handle kernel NULL pointer dereference at 00000004
[ 3933.080487] IP: [<c13c8a11>] sd_revalidate_disk+0x21/0x290
[ 3933.080535] *pdpt = 000000002509d001 *pde = 0000000000000000
[ 3933.080580] Oops: 0000 [#1] SMP
[ 3933.080607] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat usb_storage pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) rfcomm bnep bluetooth parport_pc ppdev binfmt_misc dm_crypt snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event tpm_infineon snd_seq snd_timer snd_seq_device snd soundcore mei(C) snd_page_alloc hp_wmi mac_hid psmouse serio_raw sparse_keymap tpm_tis lp parport btrfs zlib_deflate libcrc32c wmi e1000e 3c59x i915 drm_kms_helper drm i2c_algo_bit video
[ 3933.081030]
[ 3933.081044] Pid: 6805, comm: udisks-daemon Tainted: G C O 3.2.0-18-generic-pae #29-Ubuntu Hewlett-Packard HP Compaq 6200 Pro MT PC/1497
[ 3933.081141] EIP: 0060:[<c13c8a11>] EFLAGS: 00010286 CPU: 1
[ 3933.081183] EIP is at sd_revalidate_disk+0x21/0x290
[ 3933.081219] EAX: 00000000 EBX: 00000000 ECX: 00000002 EDX: c13c89f0
[ 3933.081265] ESI: ec0a6860 EDI: ec0a6800 EBP: ec59dd48 ESP: ec59dd28
[ 3933.081310] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 3933.081350] Process udisks-daemon (pid: 6805, ti=ec59c000 task=ef95b280 task.ti=ec59c000)
[ 3933.081408] Stack:
[ 3933.081423] c115b1e3 f73b7c00 00000000 00000002 00000001 00000000 ec0a6860 ec0a6800
[ 3933.081491] ec59ddb4 c119db22 00000e7a c13a6ba7 c10921ca f9442400 ec59dd68 c137faf4
[ 3933.081566] ec59dd78 c13a6b94 f6a5ee00 ec0a6860 00000000 f73b7c00 ee831000 ffffff85
[ 3933.081638] Call Trace:
[ 3933.081661] [<c115b1e3>] ? iput+0x23/0x40
[ 3933.081696] [<c119db22>] rescan_partitions+0x82/0x350
[ 3933.081737] [<c13a6ba7>] ? scsi_device_put+0x47/0x50
[ 3933.081777] [<c10921ca>] ? module_refcount+0x7a/0x90
[ 3933.081816] [<c137faf4>] ? put_device+0x14/0x20
[ 3933.081852] [<c13a6b94>] ? scsi_device_put+0x34/0x50
[ 3933.081891] [<c13c62ff>] ? sd_open+0xff/0x1d0
[ 3933.081927] [<c1175226>] __blkdev_get+0x266/0x3c0
[ 3933.081963] [<c11753c7>] blkdev_get+0x47/0x180
[ 3933.082000] [<c15a68cd>] ? _raw_spin_lock+0xd/0x10
[ 3933.082037] [<c1175550>] blkdev_open+0x50/0x70
[ 3933.082073] [<c1141bce>] __dentry_open+0x25e/0x310
[ 3933.082091] [<c1175500>] ? blkdev_get+0x180/0x180
[ 3933.082109] [<c114214a>] vfs_open+0x3a/0x50
[ 3933.082125] [<c1143049>] nameidata_to_filp+0x39/0x40
[ 3933.082143] [<c11503f7>] do_last+0x367/0x660
[ 3933.082160] [<c1151724>] path_openat+0xa4/0x350
[ 3933.082177] [<c10c3818>] ? rcu_report_qs_rsp+0x78/0xf0
[ 3933.082197] [<c10362b8>] ? default_spin_lock_flags+0x8/0x10
[ 3933.082218] [<c1151ae1>] do_filp_open+0x31/0x80
[ 3933.082236] [<c12b66d8>] ? strncpy_from_user+0x38/0x70
[ 3933.083618] [<c115d073>] ? alloc_fd+0xa3/0xe0
[ 3933.086006] [<c115eeea>] ? mntput_no_expire+0x2a/0xd0
[ 3933.088396] [<c1143131>] do_sys_open+0xe1/0x1f0
[ 3933.090770] [<c114326e>] sys_open+0x2e/0x40
[ 3933.093126] [<c15adcdf>] sysenter_do_call+0x12/0x28
[ 3933.094517] Code: 74 26 00 8d bc 27 00 00 00 00 55 89 e5 83 ec 20 89 5d f4 89 75 f8 89 7d fc 3e 8d 74 26 00 8b 98 e8 01 00 00 89 c7 a1 c0 81 a0 c1 <8b> 73 04 c1 e8 15 83 e0 07 83 f8 03 0f 87 fa 01 00 00 8b 86 94
[ 3933.099433] EIP: [<c13c8a11>] sd_revalidate_disk+0x21/0x290 SS:ESP 0068:ec59dd28
[ 3933.101994] CR2: 0000000000000004
[ 3933.173274] ---[ end trace 1b81cc667a3e0a46 ]---

ProblemType: KernelOops
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-18-generic-pae
Uname: Linux 3.2.0-18-generic-pae i686
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: i386
Date: Tue Mar 13 16:38:55 2012
Failure: oops
SourcePackage: linux

Revision history for this message
Riccardo Mollo (riccardo-mollo) wrote :
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