diff options
author | Alexey Neyman <stilor@att.net> | 2017-07-13 07:38:03 (GMT) |
---|---|---|
committer | GitHub <noreply@github.com> | 2017-07-13 07:38:03 (GMT) |
commit | 45c5bb0f484cba724be2c6105801dcce9a1a82d9 (patch) | |
tree | 8fd1c8eaa2ef203009d72b6ca6348611dcc5ee1c /packages/glibc-ports/2.14.1/340-dl_execstack-PaX-support.patch | |
parent | 8f8e131d566af1f577d8fb6e62e6f121b7955472 (diff) | |
parent | b32fcf7c1eea890a2bd3f88487f818ba241aabb1 (diff) |
Merge pull request #767 from stilor/packages
Packages
Diffstat (limited to 'packages/glibc-ports/2.14.1/340-dl_execstack-PaX-support.patch')
-rw-r--r-- | packages/glibc-ports/2.14.1/340-dl_execstack-PaX-support.patch | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/packages/glibc-ports/2.14.1/340-dl_execstack-PaX-support.patch b/packages/glibc-ports/2.14.1/340-dl_execstack-PaX-support.patch new file mode 100644 index 0000000..2402af0 --- /dev/null +++ b/packages/glibc-ports/2.14.1/340-dl_execstack-PaX-support.patch @@ -0,0 +1,66 @@ + With latest versions of glibc, a lot of apps failed on a PaX enabled + system with: + cannot enable executable stack as shared object requires: Permission denied + + This is due to PaX 'exec-protecting' the stack, and ld.so then trying + to make the stack executable due to some libraries not containing the + PT_GNU_STACK section. Bug #32960. <azarah@gentoo.org> (12 Nov 2003). + + Patch also NPTL. Bug #116086. <kevquinn@gentoo.org> (20 Dec 2005). + +diff -durN glibc-2.13.orig/nptl/allocatestack.c glibc-2.13/nptl/allocatestack.c +--- glibc-2.13.orig/nptl/allocatestack.c 2009-01-29 21:34:16.000000000 +0100 ++++ glibc-2.13/nptl/allocatestack.c 2009-11-13 00:50:33.000000000 +0100 +@@ -329,7 +329,8 @@ + # error "Define either _STACK_GROWS_DOWN or _STACK_GROWS_UP" + #endif + if (mprotect (stack, len, PROT_READ | PROT_WRITE | PROT_EXEC) != 0) +- return errno; ++ if (errno != EACCES) /* PAX is enabled */ ++ return errno; + + return 0; + } +diff -durN glibc-2.13.orig/sysdeps/unix/sysv/linux/dl-execstack.c glibc-2.13/sysdeps/unix/sysv/linux/dl-execstack.c +--- glibc-2.13.orig/sysdeps/unix/sysv/linux/dl-execstack.c 2006-01-08 09:21:15.000000000 +0100 ++++ glibc-2.13/sysdeps/unix/sysv/linux/dl-execstack.c 2009-11-13 00:50:33.000000000 +0100 +@@ -63,7 +63,10 @@ + else + # endif + { +- result = errno; ++ if (errno == EACCES) /* PAX is enabled */ ++ result = 0; ++ else ++ result = errno; + goto out; + } + } +@@ -89,7 +92,12 @@ + page -= size; + else + { +- if (errno != ENOMEM) /* Unexpected failure mode. */ ++ if (errno == EACCES) /* PAX is enabled */ ++ { ++ result = 0; ++ goto out; ++ } ++ else if (errno != ENOMEM) /* Unexpected failure mode. */ + { + result = errno; + goto out; +@@ -115,7 +123,12 @@ + page += size; + else + { +- if (errno != ENOMEM) /* Unexpected failure mode. */ ++ if (errno == EACCES) /* PAX is enabled */ ++ { ++ result = 0; ++ goto out; ++ } ++ else if (errno != ENOMEM) /* Unexpected failure mode. */ + { + result = errno; + goto out; |