Description: powerpc/64s: Use emergency stack for kernel TM Bad Thing program checks
References:
Notes:
 carnil> Introduced in 4.9-rc1 with 5d176f751ee3c6eededd984ad409bff201f436a7
 carnil> Kernels built with CONFIG_PPC_TRANSACTIONAL_MEM=n are not vulnerable.
 carnil> Fix will require two patches:
 carnil> "powerpc/64s: Use emergency stack for kernel TM Bad Thing program checks"
 carnil> and
 carnil> "powerpc/tm: Fix illegal TM state in signal handler"
 carnil> 044215d145a7a8a60ffa8fdc859d110a795fa6ea is needed as well.
Bugs:
upstream: released (4.14-rc5) [265e60a170d0a0ecfc2d20490134ed2c48dd45ab]
4.9-upstream-stable: released (4.9.55) [afebf5ef60da6d15e75398e41ea2817c7a2bb283]
3.16-upstream-stable: N/A "Vulnerable code introduced in 4.9-rc1 with 5d176f751ee3c6eededd984ad409bff201f436a7"
3.2-upstream-stable: N/A "Vulnerable code introduced in 4.9-rc1 with 5d176f751ee3c6eededd984ad409bff201f436a7"
sid: released (4.13.4-2) [bugfix/all/powerpc-64s-Use-emergency-stack-for-kernel-TM-Bad-Th.patch]
4.9-stretch-security: released (4.9.65-1)
3.16-jessie-security: N/A "Vulerable code introduced later"
3.2-wheezy-security: N/A "Vulerable code introduced later"