user/sven/linux.git/Makefile, branch v4.4.116Linux Kernel
https://git.stealer.net/cgit.cgi/user/sven/linux.git/atom?h=v4.4.1162018-02-16T19:09:48ZLinux 4.4.1162018-02-16T19:09:48ZGreg Kroah-Hartmangregkh@linuxfoundation.org2018-02-16T19:09:48Zurn:sha1:0f48bd7cf032bb4cb9f433de0fef694e15fb93efLinux 4.4.1152018-02-03T16:04:31ZGreg Kroah-Hartmangregkh@linuxfoundation.org2018-02-03T16:04:31Zurn:sha1:f0feeec9c246f6518e168daec66d92a4a6bf0965Linux 4.4.1142018-01-31T11:06:14ZGreg Kroah-Hartmangregkh@linuxfoundation.org2018-01-31T11:06:14Zurn:sha1:49fe90b853dfb1087d0a734cd7f4af1aa00c8e53Linux 4.4.1132018-01-23T18:50:18ZGreg Kroah-Hartmangregkh@linuxfoundation.org2018-01-23T18:50:18Zurn:sha1:f0d0a93b0e81278e86c7d81c25a54ac4f4b739d2Linux 4.4.1122018-01-17T08:35:33ZGreg Kroah-Hartmangregkh@linuxfoundation.org2018-01-17T08:35:33Zurn:sha1:42375c1120d5c90d7469ba264fb124f728b1a4f7Linux 4.4.1112018-01-10T08:27:15ZGreg Kroah-Hartmangregkh@linuxfoundation.org2018-01-10T08:27:15Zurn:sha1:c5ae3a6aa1a3ff20830852ab0cd9b8c2fba56d4cLinux 4.4.1102018-01-05T14:44:27ZGreg Kroah-Hartmangregkh@linuxfoundation.org2018-01-05T14:44:27Zurn:sha1:b3e3db15b45027e3b77ec7f722e2b7210b1bf726Linux 4.4.1092018-01-02T19:33:28ZGreg Kroah-Hartmangregkh@linuxfoundation.org2018-01-02T19:33:28Zurn:sha1:e68d6189c7872b2b3731276bda5f5e0c8d5ba644kbuild: add '-fno-stack-check' to kernel build options2018-01-02T19:33:24ZLinus Torvaldstorvalds@linux-foundation.org2017-12-30T01:34:43Zurn:sha1:1cd09d4b38a26730081780168c0de79d1cd14d71
commit 3ce120b16cc548472f80cf8644f90eda958cf1b6 upstream.
It appears that hardened gentoo enables "-fstack-check" by default for
gcc.
That doesn't work _at_all_ for the kernel, because the kernel stack
doesn't act like a user stack at all: it's much smaller, and it doesn't
auto-expand on use. So the extra "probe one page below the stack" code
generated by -fstack-check just breaks the kernel in horrible ways,
causing infinite double faults etc.
[ I have to say, that the particular code gcc generates looks very
stupid even for user space where it works, but that's a separate
issue. ]
Reported-and-tested-by: Alexander Tsoy <alexander@tsoy.me>
Reported-and-tested-by: Toralf Förster <toralf.foerster@gmx.de>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux 4.4.1082017-12-25T13:22:16ZGreg Kroah-Hartmangregkh@linuxfoundation.org2017-12-25T13:22:16Zurn:sha1:03028e068a1f75d3b2e0989d7a452e701df0727b