[PATCH v2 5/7] mips/modules: Add rlimit checking for mips modules
From: rick.p.edgecombe@intel.com (Rick Edgecombe)
Date: 2018-10-12 07:09:41
Also in:
linux-arch, linux-fsdevel, linux-mips, linux-s390, lkml, sparclinux
Subsystem:
mips, the rest · Maintainers:
Thomas Bogendoerfer, Linus Torvalds
This adds in the rlimit checking for the mips module allocator. This has not been tested. Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com> --- arch/mips/kernel/module.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
index 491605137b03..7a23392512d1 100644
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c@@ -47,9 +47,18 @@ static DEFINE_SPINLOCK(dbe_lock); #ifdef MODULE_START void *module_alloc(unsigned long size) { - return __vmalloc_node_range(size, 1, MODULE_START, MODULE_END, + void *p; + + if (check_inc_mod_rlimit(size)) + return NULL; + + p = __vmalloc_node_range(size, 1, MODULE_START, MODULE_END, GFP_KERNEL, PAGE_KERNEL, 0, NUMA_NO_NODE, __builtin_return_address(0)); + + update_mod_rlimit(p, size); + + return p; } #endif
--
2.17.1