This bug was fixed in the package linux - 3.13.0-61.100
---------------
linux (3.13.0-61.100) trusty; urgency=low
[ Luis Henriques]
* Re-work previous CVE backports to fix regression
- LP: #1479093
[ Upstream Kernel Changes ]
* Revert "x86/nmi/64: Use DF to avoid userspace RSP confusing nested NMI
detection"
* Revert "x86/nmi/64: Reorder nested NMI checks"
* Revert "x86/nmi/64: Improve nested NMI comments"
* Revert "x86/nmi/64: Switch stacks on userspace NMI entry"
* Revert "x86/nmi/64: Remove asm code that saves cr2"
* Revert "x86/nmi: Enable nested do_nmi handling for 64-bit kernels"
* Revert "x86/asm/entry/64: Remove pointless jump to irq_return"
* Revert "x86/asm/entry/64: Remove a redundant jump"
* Revert "x86/asm/entry/64: Fold the 'test_in_nmi' macro into its only
user"
* Revert "x86/asm/entry/64: Always allocate a complete "struct pt_regs"
on the kernel stack"
* Revert "x86/asm/64: Open-code register save/restore in
trace_hardirqs*() thunks"
* Revert "x86: entry_64.S: fold SAVE_ARGS_IRQ macro into its sole user"
* Revert "x86: ia32entry.S: fix wrong symbolic constant usage:
R11->ARGOFFSET"
* Revert "x86: entry_64.S: delete unused code"
* Revert "x86, entry: Switch stacks on a paranoid entry from userspace"
* Revert "x86: Speed up ___preempt_schedule*() by using THUNK helpers"
* Revert "x86_64, entry: Treat regs->ax the same in fastpath and slowpath
syscalls"
* Revert "x86, entry: Only call user_exit if TIF_NOHZ"
* Revert "x86/debug: Drop several unnecessary CFI annotations"
* Revert "x86_64, entry: Add missing 'DEFAULT_FRAME 0' entry annotations"
* x86/asm/entry/64: Fold the 'test_in_nmi' macro into its only user
* x86/asm/entry/64: Remove a redundant jump
* x86/nmi: Enable nested do_nmi handling for 64-bit kernels
* x86/nmi/64: Remove asm code that saves cr2
* x86/nmi/64: Switch stacks on userspace NMI entry
- CVE-2015-3290, CVE-2015-5157
* x86/nmi/64: Improve nested NMI comments
* x86/nmi/64: Reorder nested NMI checks
* x86/nmi/64: Use DF to avoid userspace RSP confusing nested NMI
detection
- CVE-2015-3291
-- Luis Henriques <luis.henriq...@canonical.com> Wed, 29 Jul 2015
10:58:25 +0100
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https://bugs.launchpad.net/bugs/1479093
Title:
Segfault in ld-2.19.so while starting Steam after upgrade to
3.13.0-59.98
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