CIFS causes oops
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
In Progress
|
Undecided
|
Thadeu Lima de Souza Cascardo | ||
Xenial |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
"Hi Kleber,
I tested the Xenial kernel from -proposed and got the following crash:
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262084] BUG: unable to handle kernel NULL pointer dereference at (null)
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262087] IP: [<ffffffffc0341
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262098] PGD 7db4fb067 PUD 7d5e3a067 PMD 0
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262100] Oops: 0000 [#1] SMP
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262340] Modules linked in: cifs drbg ansi_cprng cmac arc4 md4 nls_utf8 ccm fscache crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel i2c_piix4 aes_x86_64 8250_fintek lrw hyperv_fb gf128mul hv_balloon glue_helper ablk_helper cryptd input_leds serio_raw joydev mac_hid nfsd auth_rpcgss nfs_acl lockd grace sunrpc parport_pc ppdev lp parport autofs4 hid_generic hv_netvsc hv_utils ptp hid_hyperv hv_storvsc pps_core hid scsi_transport_fc hyperv_keyboard psmouse pata_acpi hv_vmbus floppy fjes [last unloaded: cifs]
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262360] CPU: 2 PID: 18568 Comm: cifsd Not tainted 4.4.0-85-generic #108-Ubuntu
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262361] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090006 01/06/2017
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262362] task: ffff8807e1440f00 ti: ffff8807da868000 task.ti: ffff8807da868000
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262363] RIP: 0010:[<
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262371] RSP: 0018:ffff8807da
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262372] RAX: 00000000ffffffc3 RBX: ffff8807df0ae200 RCX: 0000000000000000
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262373] RDX: ffffffffc0390b80 RSI: 0000000000000000 RDI: ffff8807db71c000
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262373] RBP: ffff8807da86bdd0 R08: 000000000000004d R09: ffff8807da86bcfc
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262374] R10: 00000000000001fc R11: 0000000000000000 R12: 000000000000004d
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262375] R13: ffff8800f2fa1c00 R14: ffff8800f2fa1c00 R15: ffff8807df2ea680
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262376] FS: 000000000000000
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262377] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262377] CR2: 0000000000000000 CR3: 00000007de707000 CR4: 00000000003406e0
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262379] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262380] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262380] Stack:
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262381] ffff8807df0ae200 000000000000004d ffff8807da86bdf8 ffffffffc034159e
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262382] ffff8807db71c000 000000000000004d ffff8807df0ae200 ffff8807da86be40
Jul 13 14:38:05 ubuntu-vm kernel: [ 770.262383] ffffffffc0341694 0000000000000000 000000000000000..."
CVE References
Changed in linux (Ubuntu Xenial): | |
status: | New → Fix Committed |
As reported here: https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1670508/ comments/ 19