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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-13 07:50:02 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-13 07:50:02 +0300
commite34bac726d27056081d0250c0e173e4b155aa340 (patch)
tree85607d0b3b185380fb3267866020c6a4372b9298 /kernel/sys.c
parentfe6bce8d30a86c693bf7cfbf4759cbafd121289f (diff)
parent39a0e975c37dee93fa1b8ea5f7eacd1c4c8a586e (diff)
downloadlinux-e34bac726d27056081d0250c0e173e4b155aa340.tar.xz
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: - various misc bits - most of MM (quite a lot of MM material is awaiting the merge of linux-next dependencies) - kasan - printk updates - procfs updates - MAINTAINERS - /lib updates - checkpatch updates * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (123 commits) init: reduce rootwait polling interval time to 5ms binfmt_elf: use vmalloc() for allocation of vma_filesz checkpatch: don't emit unified-diff error for rename-only patches checkpatch: don't check c99 types like uint8_t under tools checkpatch: avoid multiple line dereferences checkpatch: don't check .pl files, improve absolute path commit log test scripts/checkpatch.pl: fix spelling checkpatch: don't try to get maintained status when --no-tree is given lib/ida: document locking requirements a bit better lib/rbtree.c: fix typo in comment of ____rb_erase_color lib/Kconfig.debug: make CONFIG_STRICT_DEVMEM depend on CONFIG_DEVMEM MAINTAINERS: add drm and drm/i915 irc channels MAINTAINERS: add "C:" for URI for chat where developers hang out MAINTAINERS: add drm and drm/i915 bug filing info MAINTAINERS: add "B:" for URI where to file bugs get_maintainer: look for arbitrary letter prefixes in sections printk: add Kconfig option to set default console loglevel printk/sound: handle more message headers printk/btrfs: handle more message headers printk/kdb: handle more message headers ...
Diffstat (limited to 'kernel/sys.c')
-rw-r--r--kernel/sys.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/kernel/sys.c b/kernel/sys.c
index 78c9fb7dd680..9758892a2d09 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1697,16 +1697,6 @@ static int prctl_set_mm_exe_file(struct mm_struct *mm, unsigned int fd)
fput(exe_file);
}
- /*
- * The symlink can be changed only once, just to disallow arbitrary
- * transitions malicious software might bring in. This means one
- * could make a snapshot over all processes running and monitor
- * /proc/pid/exe changes to notice unusual activity if needed.
- */
- err = -EPERM;
- if (test_and_set_bit(MMF_EXE_FILE_CHANGED, &mm->flags))
- goto exit;
-
err = 0;
/* set the new file, lockless */
get_file(exe.file);