Wrong get_gate_vma call in i386 NX emulation code

Bug Description

Since commit 31db58b3 ("mm: arch: make get_gate_vma take an mm_struct
instead of a task_struct"), that went in linux 2.6.39, get_gate_vma is
expected to take an struct mm_struct pointer as its parameter. But
get_gate_vma in i386 NX emulation code patch is still using the old way.

SRU Justification

Impact: seems we could have problems only if acessing something vdso related, not sure, anyway we should fix the issue.

Fix: pass the proper parameter to get_gate_vma

Test Case: without the fix, you get this build warning on i386:
ubuntu-precise/arch/x86/kernel/traps.c: In function 'check_lazy_exec_limit':
ubuntu-precise/arch/x86/kernel/traps.c:145:3: warning: passing argument 1 of 'get_gate_vma' from incompatible pointer type [enabled by default]
ubuntu-precise/include/linux/mm.h:1569:31: note: expected 'struct mm_struct *' but argument is of type 'struct task_struct *'

Quantal doesn't have the NX emulation patches, set main linux task to invalid.

The compilation warnings in oneiric are now fixed. Tagging as verified.

The compilation warnings in precise are now fixed. Tagging as verified.

This bug was fixed in the package linux - 3.0.0-22.36

---------------
linux (3.0.0-22.36) oneiric-proposed; urgency=low

[Luis Henriques]

* Release Tracking Bug
- LP: #1012040

[ Herton Ronaldo Krzesinski ]

* SAUCE: fix get_gate_vma call in i386 NX emulation code
- LP: #1009200

[ Upstream Kernel Changes ]

* Avoid reading past buffer when calling GETACL
- LP: #1002505
- CVE-2012-2375
* Avoid beyond bounds copy while caching ACL
- LP: #1002505
- CVE-2012-2375
* Fix length of buffer copied in __nfs4_get_acl_uncached
- LP: #1002505
- CVE-2012-2375
* tilegx: enable SYSCALL_WRAPPERS support
- LP: #1008697
* block: fix buffer overflow when printing partition UUIDs
- LP: #1008697
* block: don't mark buffers beyond end of disk as mapped
- LP: #1008697
* PARISC: fix PA1.1 oops on boot
- LP: #1008697
* PARISC: fix crash in flush_icache_page_asm on PA1.1
- LP: #1008697
* PARISC: fix panic on prefetch(NULL) on PA7300LC
- LP: #1008697
* isdn/gigaset: ratelimit CAPI message dumps
- LP: #1008697
* vfs: make AIO use the proper rw_verify_area() area helpers
- LP: #1008697
* cfg80211: warn if db.txt is empty with CONFIG_CFG80211_INTERNAL_REGDB
- LP: #1008697
* Fix blocking allocations called very early during bootup
- LP: #1008697
* s390/pfault: fix task state race
- LP: #1008697
* SCSI: mpt2sas: Fix for panic happening because of improper memory
allocation
- LP: #1008697
* RDMA/cxgb4: Drop peer_abort when no endpoint found
- LP: #1008697
* KEYS: Use the compat keyctl() syscall wrapper on Sparc64 for Sparc32
compat
- LP: #1008697
* SELinux: if sel_make_bools errors don't leave inconsistent state
- LP: #1008697
* drivers/staging/comedi/comedi_fops.c: add missing vfree
- LP: #1008697
* perf/x86: Update event scheduling constraints for AMD family 15h models
- LP: #1008697
* mtd: sm_ftl: fix typo in major number.
- LP: #1008697
* ahci: Detect Marvell 88SE9172 SATA controller
- LP: #1008697
* um: Fix __swp_type()
- LP: #1008697
* um: Implement a custom pte_same() function
- LP: #1008697
* docs: update HOWTO for 2.6.x -> 3.x versioning
- LP: #1008697
* USB: cdc-wdm: poll must return POLLHUP if device is gone
- LP: #1008697
* workqueue: skip nr_running sanity check in worker_enter_idle() if
trustee is active
- LP: #1008697
* mm: mempolicy: Let vma_merge and vma_split handle vma->vm_policy
linkages
- LP: #1008697
* md: using GFP_NOIO to allocate bio for flush request
- LP: #1008697
* Add missing call to uart_update_timeout()
- LP: #1008697
* tty: Allow uart_register/unregister/register
- LP: #1008697
* USB: ftdi-sio: add support for Physik Instrumente E-861
- LP: #1008697
* usb-storage: unusual_devs entry for Yarvik PMP400 MP4 player
- LP: #1008697
* USB: ffs-test: fix length argument of out function call
- LP: #1008697
* drivers/rtc/rtc-pl031.c: configure correct wday for 2000年01月01日
- LP: #1008697
* SCSI: hpsa: Fix problem with MSA2xxx devices
- LP: #1008697
* usb: usbtest: two super speed fixes for usbt...

This bug was fixed in the package linux - 3.2.0-26.41

---------------
linux (3.2.0-26.41) precise-proposed; urgency=low

[Luis Henriques]

* Release Tracking Bug
- LP: #1012057

[ Andy Whitcroft ]

* [Config] fix up postinst to ensure we know which error is which
- LP: #1002388
* [Config] highbank -- commonise filesystems
- LP: #1000831, #1010463
* [Config] highbank -- commonise subsystems
- LP: #1000831, #1010463
* [Config] highbank -- commonise network protocols
- LP: #1000831, #1010463
* [Config] highbank -- commonise input drivers
- LP: #1000831, #1010463
* [Config] highbank -- commonise CRYPTO options
- LP: #1000831, #1010463
* [Config] highbank -- commonise HID options
- LP: #1000831, #1010463
* [Config] highbank -- commonise sensors options
- LP: #1000831, #1010463
* [Config] highbank -- commonise EXPORTFS/FHANDLE
- LP: #1000831, #1010463
* [Config] highbank -- commonise CONFIG_CRYPTO_LZO
- LP: #1000831, #1010463
* [Config] highbank -- commonise ENCRYPTED_KEYS
- LP: #1000831, #1010463
* [Config] highbank -- commonise CONFIG_ATALK
- LP: #1000831, #1010463
* [Config] highbank -- commonise INET/INET6
- LP: #1000831, #1010463
* [Config] highbank -- commonise NLS
- LP: #1000831, #1010463
* [Config] highbank -- commonise BLK/CHR
- LP: #1000831, #1010463
* [Config] highbank -- commonise PHY settings
- LP: #1000831, #1010463
* [Config] highbank -- commonise CRC settings
- LP: #1000831, #1010463
* [Config] highbank -- commonise BINFMT settings
- LP: #1000831, #1010463
* [Config] highbank -- commonise DM settings
- LP: #1000831, #1010463
* [Config] highbank -- commonise RTC_DRV settings
- LP: #1000831, #1010463
* [Config] highbank -- commonise KEYBOARD/MOUSE settings
- LP: #1000831, #1010463
* [Config] highbank -- commonise USB settings
- LP: #1000831, #1010463
* [Config] highbank -- commonise GPIO settings
- LP: #1000831, #1010463
* [Config] highbank -- commonise I2C settings
- LP: #1000831, #1010463
* [Config] highbank -- commonise numerous subsystem selectors
- LP: #1000831, #1010463
* [Config] highbank -- commonise A-C modules missmatches
- LP: #1000831, #1010463
* [Config] highbank -- commonise D-F modules missmatches
- LP: #1000831, #1010463
* [Config] highbank -- commonise G-I modules missmatches
- LP: #1000831, #1010463
* [Config] highbank -- commonise J-L modules missmatches
- LP: #1000831, #1010463
* [Config] highbank -- commonise M modules missmatches
- LP: #1000831, #1010463
* [Config] highbank -- commonise N-P modules missmatches
- LP: #1000831, #1010463
* [Config] highbank -- commonise Q-R modules missmatches
- LP: #1000831, #1010463
* [Config] highbank -- commonise S modules missmatches
- LP: #1000831, #1010463
* [Config] highbank -- commonise T modules missmatches
- LP: #1000831, #1010463
* [Config] highbank -- commonise U-Z modules missmatches
- LP: #1000831, #1010463

[ Herton Ronaldo Krzesinski ]

* SAUCE: fix get_gate_vma call in i386 NX emulation code
- LP: #1009200

[ Ike Panhc ]

* [Config] add...

The verification of this Stable Release Update has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regresssions.