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authorNatanael Copa <ncopa@alpinelinux.org>2014-06-26 09:02:48 +0000
committerNatanael Copa <ncopa@alpinelinux.org>2014-06-26 09:03:18 +0000
commit5730068c58a780f9e113021b48df9eefb4071f22 (patch)
tree8d110475ed8cc0e00e8f433ff1bb4d63b3b87369
parent88d93b7f7c885b50d119e8163baa3b9fa95d76db (diff)
downloadaports-5730068c58a780f9e113021b48df9eefb4071f22.tar.gz
aports-5730068c58a780f9e113021b48df9eefb4071f22.tar.bz2
aports-5730068c58a780f9e113021b48df9eefb4071f22.tar.xz
main/linux-virt-grsec: upgrade to grsecurity-3.0-3.14.8-201406222110
-rw-r--r--main/linux-virt-grsec/APKBUILD10
-rw-r--r--main/linux-virt-grsec/grsecurity-3.0-3.14.8-201406222110.patch (renamed from main/linux-virt-grsec/grsecurity-3.0-3.14.8-201406191347.patch)644
2 files changed, 379 insertions, 275 deletions
diff --git a/main/linux-virt-grsec/APKBUILD b/main/linux-virt-grsec/APKBUILD
index 4bd481251a..4e566f6944 100644
--- a/main/linux-virt-grsec/APKBUILD
+++ b/main/linux-virt-grsec/APKBUILD
@@ -8,7 +8,7 @@ case $pkgver in
*.*.*) _kernver=${pkgver%.*};;
*.*) _kernver=${pkgver};;
esac
-pkgrel=0
+pkgrel=1
pkgdesc="Linux kernel for virtual guests with grsecurity"
url="http://grsecurity.net"
depends="mkinitfs linux-firmware"
@@ -18,7 +18,7 @@ _config=${config:-kernelconfig.${CARCH}}
install=
source="http://ftp.kernel.org/pub/linux/kernel/v3.x/linux-$_kernver.tar.xz
http://ftp.kernel.org/pub/linux/kernel/v3.x/patch-$pkgver.xz
- grsecurity-3.0-$pkgver-201406191347.patch
+ grsecurity-3.0-3.14.8-201406222110.patch
fix-memory-map-for-PIE-applications.patch
imx6q-no-unclocked-sleep.patch
@@ -147,21 +147,21 @@ dev() {
md5sums="b621207b3f6ecbb67db18b13258f8ea8 linux-3.14.tar.xz
f612535d2c5d954b5e885757c387ae54 patch-3.14.8.xz
-f97092de8a6fa522ab9c8c510299274a grsecurity-3.0-3.14.8-201406191347.patch
+a0519c8c05be0bf6a06e9c4b8fba680b grsecurity-3.0-3.14.8-201406222110.patch
c6a4ae7e8ca6159e1631545515805216 fix-memory-map-for-PIE-applications.patch
1a307fc1d63231bf01d22493a4f14378 imx6q-no-unclocked-sleep.patch
74884a16fa9c58e0cabfaf57c8b64678 kernelconfig.x86
ef60383e07d9e7df6c474a03f3f56782 kernelconfig.x86_64"
sha256sums="61558aa490855f42b6340d1a1596be47454909629327c49a5e4e10268065dffa linux-3.14.tar.xz
0edab0f772836162e5e57ef294d83e88153c15a12f394914c6a25b49e408e8f1 patch-3.14.8.xz
-aa9d8c11e1c1790e71088ae0a6494b8e44b0734f8e5d4fdeb9b98e0c77427406 grsecurity-3.0-3.14.8-201406191347.patch
+8acb478a24bd57145dc1524d8f2e4e1b9cc0de652b373a1eb9535e0c41385949 grsecurity-3.0-3.14.8-201406222110.patch
500f3577310be52e87b9fecdc2e9c4ca43210fd97d69089f9005d484563f74c7 fix-memory-map-for-PIE-applications.patch
21179fbb22a5b74af0a609350ae1a170e232908572b201d02e791d2ce0a685d3 imx6q-no-unclocked-sleep.patch
0afbfb07b8c1eaf741593da97ad15ab34196afe541a82efc66cb8648c36c6c68 kernelconfig.x86
92aa8a3f494732762deec3adfe34b0578bf86310c45eafb678c3c518e6ef578f kernelconfig.x86_64"
sha512sums="5730d83a7a81134c1e77c0bf89e42dee4f8251ad56c1ac2be20c59e26fdfaa7bea55f277e7af156b637f22e1584914a46089af85039177cb43485089c74ac26e linux-3.14.tar.xz
a71fdb5391d664ecccef6602df638588e6202992415a788ad85fab9878ec6b76034c37de824069cfc6d6d502a1fab0eba98c69170f410d28951335e19d94db72 patch-3.14.8.xz
-4e9c3e5e6be903cf523160d161633fbe0cbc17d0cb4c67284a5c8c82ca999c46b84bcade802425e25c572256fc016169679507f1ca0cd801c2197cc7b6caa2e6 grsecurity-3.0-3.14.8-201406191347.patch
+4a8ef5cc67205d12721e40738551672afc6d1041509143969b043da476afdac09cc39a468ddb511bda8c1cc376c3c336d33e4333eebea773831b28b637c66099 grsecurity-3.0-3.14.8-201406222110.patch
4665c56ae1bbac311f9205d64918e84ee8b01d47d6e2396ff6b8adfb10aada7f7254531ce62e31edbb65c2a54a830f09ad05d314dfcd75d6272f4068945ad7c7 fix-memory-map-for-PIE-applications.patch
87d1ad59732f265a5b0db54490dc1762c14ea4b868e7eb1aedc3ce57b48046de7bbc08cf5cfcf6f1380fa84063b0edb16ba3d5e3c5670be9bbb229275c88b221 imx6q-no-unclocked-sleep.patch
324513d75def9fb78ccc5f446e1fae28e7069e94c1ebac406776750cd05f1bf6f0f8a9216543ee6bf82a68d9834e2a1404093d92cc2acd2cb28e3f9a478ad0c6 kernelconfig.x86
diff --git a/main/linux-virt-grsec/grsecurity-3.0-3.14.8-201406191347.patch b/main/linux-virt-grsec/grsecurity-3.0-3.14.8-201406222110.patch
index cf0e6f3646..aeeb2f060e 100644
--- a/main/linux-virt-grsec/grsecurity-3.0-3.14.8-201406191347.patch
+++ b/main/linux-virt-grsec/grsecurity-3.0-3.14.8-201406222110.patch
@@ -6739,18 +6739,18 @@ index 25da651..ae2a259 100644
#endif /* __ASM_SMTC_PROC_H */
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
-index e80ae50..4404147 100644
+index e80ae50..b93dd2e 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
-@@ -116,6 +116,8 @@ static inline struct thread_info *current_thread_info(void)
- #define TIF_LOAD_WATCH 25 /* If set, load watch registers */
- #define TIF_SYSCALL_TRACEPOINT 26 /* syscall tracepoint instrumentation */
- #define TIF_32BIT_FPREGS 27 /* 32-bit floating point registers */
+@@ -105,6 +105,8 @@ static inline struct thread_info *current_thread_info(void)
+ #define TIF_SECCOMP 4 /* secure computing */
+ #define TIF_NOTIFY_RESUME 5 /* callback before returning to user */
+ #define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */
+/* li takes a 32bit immediate */
-+#define TIF_GRSEC_SETXID 29 /* update credentials on syscall entry/exit */
- #define TIF_SYSCALL_TRACE 31 /* syscall trace active */
-
- #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
++#define TIF_GRSEC_SETXID 10 /* update credentials on syscall entry/exit */
+ #define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */
+ #define TIF_MEMDIE 18 /* is terminating due to OOM killer */
+ #define TIF_NOHZ 19 /* in adaptive nohz mode */
@@ -134,14 +136,15 @@ static inline struct thread_info *current_thread_info(void)
#define _TIF_LOAD_WATCH (1<<TIF_LOAD_WATCH)
#define _TIF_32BIT_FPREGS (1<<TIF_32BIT_FPREGS)
@@ -17682,7 +17682,7 @@ index 86f9301..b365cda 100644
void unregister_nmi_handler(unsigned int, const char *);
diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h
-index 775873d..de5f0304 100644
+index 775873d..04cd306 100644
--- a/arch/x86/include/asm/page.h
+++ b/arch/x86/include/asm/page.h
@@ -52,6 +52,7 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
@@ -17693,6 +17693,29 @@ index 775873d..de5f0304 100644
#define __boot_va(x) __va(x)
#define __boot_pa(x) __pa(x)
+@@ -60,11 +61,21 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
+ * virt_to_page(kaddr) returns a valid pointer if and only if
+ * virt_addr_valid(kaddr) returns true.
+ */
+-#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+ #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
+ extern bool __virt_addr_valid(unsigned long kaddr);
+ #define virt_addr_valid(kaddr) __virt_addr_valid((unsigned long) (kaddr))
+
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++#define virt_to_page(kaddr) \
++ ({ \
++ const void *__kaddr = (const void *)(kaddr); \
++ BUG_ON(!virt_addr_valid(__kaddr)); \
++ pfn_to_page(__pa(__kaddr) >> PAGE_SHIFT); \
++ })
++#else
++#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
++#endif
++
+ #endif /* __ASSEMBLY__ */
+
+ #include <asm-generic/memory_model.h>
diff --git a/arch/x86/include/asm/page_64.h b/arch/x86/include/asm/page_64.h
index 0f1ddee..e2fc3d1 100644
--- a/arch/x86/include/asm/page_64.h
@@ -61696,11 +61719,15 @@ index d19b30a..ef89c36 100644
static int can_do_hugetlb_shm(void)
{
diff --git a/fs/inode.c b/fs/inode.c
-index e846a32..6b22e15 100644
+index e846a32..bb06bd0 100644
--- a/fs/inode.c
+++ b/fs/inode.c
-@@ -841,8 +841,8 @@ unsigned int get_next_ino(void)
+@@ -839,16 +839,20 @@ unsigned int get_next_ino(void)
+ unsigned int *p = &get_cpu_var(last_ino);
+ unsigned int res = *p;
++start:
++
#ifdef CONFIG_SMP
if (unlikely((res & (LAST_INO_BATCH-1)) == 0)) {
- static atomic_t shared_last_ino;
@@ -61710,6 +61737,15 @@ index e846a32..6b22e15 100644
res = next - LAST_INO_BATCH;
}
+ #endif
+
+- *p = ++res;
++ if (unlikely(!++res))
++ goto start; /* never zero */
++ *p = res;
+ put_cpu_var(last_ino);
+ return res;
+ }
diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
index 4a6cf28..d3a29d3 100644
--- a/fs/jffs2/erase.c
@@ -82226,8 +82262,33 @@ index b66c211..13d2915 100644
static inline void anon_vma_merge(struct vm_area_struct *vma,
struct vm_area_struct *next)
+diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
+index a964f72..b475afb 100644
+--- a/include/linux/scatterlist.h
++++ b/include/linux/scatterlist.h
+@@ -1,6 +1,7 @@
+ #ifndef _LINUX_SCATTERLIST_H
+ #define _LINUX_SCATTERLIST_H
+
++#include <linux/sched.h>
+ #include <linux/string.h>
+ #include <linux/bug.h>
+ #include <linux/mm.h>
+@@ -114,6 +115,12 @@ static inline void sg_set_buf(struct scatterlist *sg, const void *buf,
+ #ifdef CONFIG_DEBUG_SG
+ BUG_ON(!virt_addr_valid(buf));
+ #endif
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++ if (object_starts_on_stack(buf)) {
++ void *adjbuf = buf - current->stack + current->lowmem_stack;
++ sg_set_page(sg, virt_to_page(adjbuf), buflen, offset_in_page(adjbuf));
++ } else
++#endif
+ sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf));
+ }
+
diff --git a/include/linux/sched.h b/include/linux/sched.h
-index ccd0c6f..39c28a4 100644
+index ccd0c6f..84d9030 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -129,6 +129,7 @@ struct fs_struct;
@@ -82318,7 +82379,17 @@ index ccd0c6f..39c28a4 100644
extern int uids_sysfs_init(void);
-@@ -1286,8 +1319,8 @@ struct task_struct {
+@@ -1164,6 +1197,9 @@ enum perf_event_task_context {
+ struct task_struct {
+ volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */
+ void *stack;
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++ void *lowmem_stack;
++#endif
+ atomic_t usage;
+ unsigned int flags; /* per process flags, defined below */
+ unsigned int ptrace;
+@@ -1286,8 +1322,8 @@ struct task_struct {
struct list_head thread_node;
struct completion *vfork_done; /* for vfork() */
@@ -82329,7 +82400,7 @@ index ccd0c6f..39c28a4 100644
cputime_t utime, stime, utimescaled, stimescaled;
cputime_t gtime;
-@@ -1312,11 +1345,6 @@ struct task_struct {
+@@ -1312,11 +1348,6 @@ struct task_struct {
struct task_cputime cputime_expires;
struct list_head cpu_timers[3];
@@ -82341,7 +82412,7 @@ index ccd0c6f..39c28a4 100644
char comm[TASK_COMM_LEN]; /* executable name excluding path
- access with [gs]et_task_comm (which lock
it with task_lock())
-@@ -1333,6 +1361,10 @@ struct task_struct {
+@@ -1333,6 +1364,10 @@ struct task_struct {
#endif
/* CPU-specific state of this task */
struct thread_struct thread;
@@ -82352,7 +82423,7 @@ index ccd0c6f..39c28a4 100644
/* filesystem information */
struct fs_struct *fs;
/* open file information */
-@@ -1409,6 +1441,10 @@ struct task_struct {
+@@ -1409,6 +1444,10 @@ struct task_struct {
gfp_t lockdep_reclaim_gfp;
#endif
@@ -82363,7 +82434,7 @@ index ccd0c6f..39c28a4 100644
/* journalling filesystem info */
void *journal_info;
-@@ -1447,6 +1483,10 @@ struct task_struct {
+@@ -1447,6 +1486,10 @@ struct task_struct {
/* cg_list protected by css_set_lock and tsk->alloc_lock */
struct list_head cg_list;
#endif
@@ -82374,7 +82445,7 @@ index ccd0c6f..39c28a4 100644
#ifdef CONFIG_FUTEX
struct robust_list_head __user *robust_list;
#ifdef CONFIG_COMPAT
-@@ -1581,7 +1621,78 @@ struct task_struct {
+@@ -1581,7 +1624,78 @@ struct task_struct {
unsigned int sequential_io;
unsigned int sequential_io_avg;
#endif
@@ -82454,7 +82525,7 @@ index ccd0c6f..39c28a4 100644
/* Future-safe accessor for struct task_struct's cpus_allowed. */
#define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed)
-@@ -1658,7 +1769,7 @@ struct pid_namespace;
+@@ -1658,7 +1772,7 @@ struct pid_namespace;
pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type,
struct pid_namespace *ns);
@@ -82463,7 +82534,7 @@ index ccd0c6f..39c28a4 100644
{
return tsk->pid;
}
-@@ -2006,6 +2117,25 @@ extern u64 sched_clock_cpu(int cpu);
+@@ -2006,6 +2120,25 @@ extern u64 sched_clock_cpu(int cpu);
extern void sched_clock_init(void);
@@ -82489,7 +82560,7 @@ index ccd0c6f..39c28a4 100644
#ifndef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
static inline void sched_clock_tick(void)
{
-@@ -2130,7 +2260,9 @@ void yield(void);
+@@ -2130,7 +2263,9 @@ void yield(void);
extern struct exec_domain default_exec_domain;
union thread_union {
@@ -82499,7 +82570,7 @@ index ccd0c6f..39c28a4 100644
unsigned long stack[THREAD_SIZE/sizeof(long)];
};
-@@ -2163,6 +2295,7 @@ extern struct pid_namespace init_pid_ns;
+@@ -2163,6 +2298,7 @@ extern struct pid_namespace init_pid_ns;
*/
extern struct task_struct *find_task_by_vpid(pid_t nr);
@@ -82507,7 +82578,7 @@ index ccd0c6f..39c28a4 100644
extern struct task_struct *find_task_by_pid_ns(pid_t nr,
struct pid_namespace *ns);
-@@ -2325,7 +2458,7 @@ extern void __cleanup_sighand(struct sighand_struct *);
+@@ -2325,7 +2461,7 @@ extern void __cleanup_sighand(struct sighand_struct *);
extern void exit_itimers(struct signal_struct *);
extern void flush_itimer_signals(void);
@@ -82516,12 +82587,12 @@ index ccd0c6f..39c28a4 100644
extern int allow_signal(int);
extern int disallow_signal(int);
-@@ -2526,9 +2659,9 @@ static inline unsigned long *end_of_stack(struct task_struct *p)
+@@ -2526,9 +2662,9 @@ static inline unsigned long *end_of_stack(struct task_struct *p)
#endif
-static inline int object_is_on_stack(void *obj)
-+static inline int object_starts_on_stack(void *obj)
++static inline int object_starts_on_stack(const void *obj)
{
- void *stack = task_stack_page(current);
+ const void *stack = task_stack_page(current);
@@ -83470,7 +83541,7 @@ index 502073a..a7de024 100644
#endif
#endif /* _LINUX_VGA_SWITCHEROO_H_ */
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
-index 4b8a891..05f2361 100644
+index 4b8a891..e9a2863 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -16,6 +16,11 @@ struct vm_area_struct; /* vma defining user mapping in mm_types.h */
@@ -83485,15 +83556,18 @@ index 4b8a891..05f2361 100644
/* bits [20..32] reserved for arch specific ioremap internals */
/*
-@@ -72,6 +77,7 @@ extern void *vzalloc_node(unsigned long size, int node);
- extern void *vmalloc_exec(unsigned long size);
- extern void *vmalloc_32(unsigned long size);
- extern void *vmalloc_32_user(unsigned long size);
-+extern void *vmalloc_stack(int node);
- extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
- extern void *__vmalloc_node_range(unsigned long size, unsigned long align,
- unsigned long start, unsigned long end, gfp_t gfp_mask,
-@@ -142,7 +148,7 @@ extern void free_vm_area(struct vm_struct *area);
+@@ -82,6 +87,10 @@ extern void *vmap(struct page **pages, unsigned int count,
+ unsigned long flags, pgprot_t prot);
+ extern void vunmap(const void *addr);
+
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++extern void unmap_process_stacks(struct task_struct *task);
++#endif
++
+ extern int remap_vmalloc_range_partial(struct vm_area_struct *vma,
+ unsigned long uaddr, void *kaddr,
+ unsigned long size);
+@@ -142,7 +151,7 @@ extern void free_vm_area(struct vm_struct *area);
/* for /dev/kmem */
extern long vread(char *buf, char *addr, unsigned long count);
@@ -86582,49 +86656,112 @@ index 81b3d67..ef189a4 100644
{
struct signal_struct *sig = current->signal;
diff --git a/kernel/fork.c b/kernel/fork.c
-index a17621c..d9e4b37 100644
+index a17621c..2a89549 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
-@@ -137,6 +137,18 @@ void __weak arch_release_thread_info(struct thread_info *ti)
- {
- }
+@@ -180,6 +180,48 @@ void thread_info_cache_init(void)
+ # endif
+ #endif
+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
-+static struct thread_info *alloc_thread_info_node(struct task_struct *tsk,
-+ int node)
++static inline struct thread_info *gr_alloc_thread_info_node(struct task_struct *tsk,
++ int node, void **lowmem_stack)
+{
-+ return vmalloc_stack(node);
++ struct page *pages[THREAD_SIZE / PAGE_SIZE];
++ void *ret = NULL;
++ unsigned int i;
++
++ *lowmem_stack = alloc_thread_info_node(tsk, node);
++ if (*lowmem_stack == NULL)
++ goto out;
++
++ for (i = 0; i < THREAD_SIZE / PAGE_SIZE; i++)
++ pages[i] = virt_to_page(*lowmem_stack + (i * PAGE_SIZE));
++
++ /* use VM_IOREMAP to gain THREAD_SIZE alignment */
++ ret = vmap(pages, THREAD_SIZE / PAGE_SIZE, VM_IOREMAP, PAGE_KERNEL);
++ if (ret == NULL) {
++ free_thread_info(*lowmem_stack);
++ *lowmem_stack = NULL;
++ }
++
++out:
++ return ret;
+}
+
-+static inline void free_thread_info(struct thread_info *ti)
++static inline void gr_free_thread_info(struct task_struct *tsk, struct thread_info *ti)
+{
-+ vfree(ti);
++ unmap_process_stacks(tsk);
+}
+#else
- #ifndef CONFIG_ARCH_THREAD_INFO_ALLOCATOR
-
- /*
-@@ -179,6 +191,7 @@ void thread_info_cache_init(void)
- }
- # endif
- #endif
++static inline struct thread_info *gr_alloc_thread_info_node(struct task_struct *tsk,
++ int node, void **lowmem_stack)
++{
++ return alloc_thread_info_node(tsk, node);
++}
++static inline void gr_free_thread_info(struct task_struct *tsk, struct thread_info *ti)
++{
++ free_thread_info(ti);
++}
+#endif
-
++
/* SLAB cache for signal_struct structures (tsk->signal) */
static struct kmem_cache *signal_cachep;
-@@ -200,9 +213,11 @@ static struct kmem_cache *mm_cachep;
- static void account_kernel_stack(struct thread_info *ti, int account)
+@@ -198,18 +240,22 @@ struct kmem_cache *vm_area_cachep;
+ /* SLAB cache for mm_struct structures (tsk->mm) */
+ static struct kmem_cache *mm_cachep;
+
+-static void account_kernel_stack(struct thread_info *ti, int account)
++static void account_kernel_stack(struct task_struct *tsk, struct thread_info *ti, int account)
{
-+#ifndef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++ struct zone *zone = page_zone(virt_to_page(tsk->lowmem_stack));
++#else
struct zone *zone = page_zone(virt_to_page(ti));
++#endif
mod_zone_page_state(zone, NR_KERNEL_STACK, account);
-+#endif
}
void free_task(struct task_struct *tsk)
-@@ -319,7 +334,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
+ {
+- account_kernel_stack(tsk->stack, -1);
++ account_kernel_stack(tsk, tsk->stack, -1);
+ arch_release_thread_info(tsk->stack);
+- free_thread_info(tsk->stack);
++ gr_free_thread_info(tsk, tsk->stack);
+ rt_mutex_debug_task_free(tsk);
+ ftrace_graph_exit_task(tsk);
+ put_seccomp_filter(tsk);
+@@ -295,6 +341,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
+ struct task_struct *tsk;
+ struct thread_info *ti;
+ unsigned long *stackend;
++ void *lowmem_stack;
+ int node = tsk_fork_get_node(orig);
+ int err;
+
+@@ -302,7 +349,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
+ if (!tsk)
+ return NULL;
+
+- ti = alloc_thread_info_node(tsk, node);
++ ti = gr_alloc_thread_info_node(tsk, node, &lowmem_stack);
+ if (!ti)
+ goto free_tsk;
+
+@@ -311,6 +358,9 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
+ goto free_ti;
+
+ tsk->stack = ti;
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++ tsk->lowmem_stack = lowmem_stack;
++#endif
+
+ setup_thread_stack(tsk, orig);
+ clear_user_return_notifier(tsk);
+@@ -319,7 +369,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
*stackend = STACK_END_MAGIC; /* for overflow detection */
#ifdef CONFIG_CC_STACKPROTECTOR
@@ -86633,7 +86770,21 @@ index a17621c..d9e4b37 100644
#endif
/*
-@@ -345,12 +360,80 @@ free_tsk:
+@@ -333,24 +383,92 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
+ tsk->splice_pipe = NULL;
+ tsk->task_frag.page = NULL;
+
+- account_kernel_stack(ti, 1);
++ account_kernel_stack(tsk, ti, 1);
+
+ return tsk;
+
+ free_ti:
+- free_thread_info(ti);
++ gr_free_thread_info(tsk, ti);
+ free_tsk:
+ free_task_struct(tsk);
+ return NULL;
}
#ifdef CONFIG_MMU
@@ -86716,7 +86867,7 @@ index a17621c..d9e4b37 100644
uprobe_start_dup_mmap();
down_write(&oldmm->mmap_sem);
-@@ -379,55 +462,15 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
+@@ -379,55 +497,15 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
prev = NULL;
for (mpnt = oldmm->mmap; mpnt; mpnt = mpnt->vm_next) {
@@ -86776,7 +86927,7 @@ index a17621c..d9e4b37 100644
}
/*
-@@ -459,6 +502,31 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
+@@ -459,6 +537,31 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
if (retval)
goto out;
}
@@ -86808,7 +86959,7 @@ index a17621c..d9e4b37 100644
/* a new mm has just been created */
arch_dup_mmap(oldmm, mm);
retval = 0;
-@@ -468,14 +536,6 @@ out:
+@@ -468,14 +571,6 @@ out:
up_write(&oldmm->mmap_sem);
uprobe_end_dup_mmap();
return retval;
@@ -86823,7 +86974,7 @@ index a17621c..d9e4b37 100644
}
static inline int mm_alloc_pgd(struct mm_struct *mm)
-@@ -689,8 +749,8 @@ struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
+@@ -689,8 +784,8 @@ struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
return ERR_PTR(err);
mm = get_task_mm(task);
@@ -86834,7 +86985,7 @@ index a17621c..d9e4b37 100644
mmput(mm);
mm = ERR_PTR(-EACCES);
}
-@@ -906,13 +966,20 @@ static int copy_fs(unsigned long clone_flags, struct task_struct *tsk)
+@@ -906,13 +1001,20 @@ static int copy_fs(unsigned long clone_flags, struct task_struct *tsk)
spin_unlock(&fs->lock);
return -EAGAIN;
}
@@ -86856,7 +87007,7 @@ index a17621c..d9e4b37 100644
return 0;
}
-@@ -1130,7 +1197,7 @@ init_task_pid(struct task_struct *task, enum pid_type type, struct pid *pid)
+@@ -1130,7 +1232,7 @@ init_task_pid(struct task_struct *task, enum pid_type type, struct pid *pid)
* parts of the process environment (as per the clone
* flags). The actual kick-off is left to the caller.
*/
@@ -86865,7 +87016,7 @@ index a17621c..d9e4b37 100644
unsigned long stack_start,
unsigned long stack_size,
int __user *child_tidptr,
-@@ -1202,6 +1269,9 @@ static struct task_struct *copy_process(unsigned long clone_flags,
+@@ -1202,6 +1304,9 @@ static struct task_struct *copy_process(unsigned long clone_flags,
DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled);
#endif
retval = -EAGAIN;
@@ -86875,7 +87026,7 @@ index a17621c..d9e4b37 100644
if (atomic_read(&p->real_cred->user->processes) >=
task_rlimit(p, RLIMIT_NPROC)) {
if (p->real_cred->user != INIT_USER &&
-@@ -1449,6 +1519,11 @@ static struct task_struct *copy_process(unsigned long clone_flags,
+@@ -1449,6 +1554,11 @@ static struct task_struct *copy_process(unsigned long clone_flags,
goto bad_fork_free_pid;
}
@@ -86887,7 +87038,7 @@ index a17621c..d9e4b37 100644
if (likely(p->pid)) {
ptrace_init_task(p, (clone_flags & CLONE_PTRACE) || trace);
-@@ -1537,6 +1612,8 @@ bad_fork_cleanup_count:
+@@ -1537,6 +1647,8 @@ bad_fork_cleanup_count:
bad_fork_free:
free_task(p);
fork_out:
@@ -86896,7 +87047,7 @@ index a17621c..d9e4b37 100644
return ERR_PTR(retval);
}
-@@ -1598,6 +1675,7 @@ long do_fork(unsigned long clone_flags,
+@@ -1598,6 +1710,7 @@ long do_fork(unsigned long clone_flags,
p = copy_process(clone_flags, stack_start, stack_size,
child_tidptr, NULL, trace);
@@ -86904,7 +87055,7 @@ index a17621c..d9e4b37 100644
/*
* Do this prior waking up the new thread - the thread pointer
* might get invalid after that point, if the thread exits quickly.
-@@ -1612,6 +1690,8 @@ long do_fork(unsigned long clone_flags,
+@@ -1612,6 +1725,8 @@ long do_fork(unsigned long clone_flags,
if (clone_flags & CLONE_PARENT_SETTID)
put_user(nr, parent_tidptr);
@@ -86913,7 +87064,7 @@ index a17621c..d9e4b37 100644
if (clone_flags & CLONE_VFORK) {
p->vfork_done = &vfork;
init_completion(&vfork);
-@@ -1728,7 +1808,7 @@ void __init proc_caches_init(void)
+@@ -1728,7 +1843,7 @@ void __init proc_caches_init(void)
mm_cachep = kmem_cache_create("mm_struct",
sizeof(struct mm_struct), ARCH_MIN_MMSTRUCT_ALIGN,
SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_NOTRACK, NULL);
@@ -86922,7 +87073,7 @@ index a17621c..d9e4b37 100644
mmap_init();
nsproxy_cache_init();
}
-@@ -1768,7 +1848,7 @@ static int unshare_fs(unsigned long unshare_flags, struct fs_struct **new_fsp)
+@@ -1768,7 +1883,7 @@ static int unshare_fs(unsigned long unshare_flags, struct fs_struct **new_fsp)
return 0;
/* don't need lock here; in the worst case we'll do useless copy */
@@ -86931,7 +87082,7 @@ index a17621c..d9e4b37 100644
return 0;
*new_fsp = copy_fs_struct(fs);
-@@ -1875,7 +1955,8 @@ SYSCALL_DEFINE1(unshare, unsigned long, unshare_flags)
+@@ -1875,7 +1990,8 @@ SYSCALL_DEFINE1(unshare, unsigned long, unshare_flags)
fs = current->fs;
spin_lock(&fs->lock);
current->fs = new_fs;
@@ -97107,10 +97258,65 @@ index a24aa22..a0d41ae 100644
}
#endif
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
-index 0fdf968..2183ba3 100644
+index 0fdf968..f044efb 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
-@@ -59,8 +59,19 @@ static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
+@@ -38,6 +38,21 @@ struct vfree_deferred {
+ };
+ static DEFINE_PER_CPU(struct vfree_deferred, vfree_deferred);
+
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++struct stack_deferred_llist {
++ struct llist_head list;
++ void *stack;
++ void *lowmem_stack;
++};
++
++struct stack_deferred {
++ struct stack_deferred_llist list;
++ struct work_struct wq;
++};
++
++static DEFINE_PER_CPU(struct stack_deferred, stack_deferred);
++#endif
++
+ static void __vunmap(const void *, int);
+
+ static void free_work(struct work_struct *w)
+@@ -45,12 +60,30 @@ static void free_work(struct work_struct *w)
+ struct vfree_deferred *p = container_of(w, struct vfree_deferred, wq);
+ struct llist_node *llnode = llist_del_all(&p->list);
+ while (llnode) {
+- void *p = llnode;
++ void *x = llnode;
+ llnode = llist_next(llnode);
+- __vunmap(p, 1);
++ __vunmap(x, 1);
+ }
+ }
+
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++static void unmap_work(struct work_struct *w)
++{
++ struct stack_deferred *p = container_of(w, struct stack_deferred, wq);
++ struct llist_node *llnode = llist_del_all(&p->list.list);
++ while (llnode) {
++ struct stack_deferred_llist *x =
++ llist_entry((struct llist_head *)llnode,
++ struct stack_deferred_llist, list);
++ void *stack = ACCESS_ONCE(x->stack);
++ void *lowmem_stack = ACCESS_ONCE(x->lowmem_stack);
++ llnode = llist_next(llnode);
++ __vunmap(stack, 0);
++ free_memcg_kmem_pages((unsigned long)lowmem_stack, THREAD_SIZE_ORDER);
++ }
++}
++#endif
++
+ /*** Page table manipulation functions ***/
+
+ static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
+@@ -59,8 +92,19 @@ static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
pte = pte_offset_kernel(pmd, addr);
do {
@@ -97132,7 +97338,7 @@ index 0fdf968..2183ba3 100644
} while (pte++, addr += PAGE_SIZE, addr != end);
}
-@@ -120,16 +131,29 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr,
+@@ -120,16 +164,29 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr,
pte = pte_alloc_kernel(pmd, addr);
if (!pte)
return -ENOMEM;
@@ -97164,7 +97370,7 @@ index 0fdf968..2183ba3 100644
return 0;
}
-@@ -139,7 +163,7 @@ static int vmap_pmd_range(pud_t *pud, unsigned long addr,
+@@ -139,7 +196,7 @@ static int vmap_pmd_range(pud_t *pud, unsigned long addr,
pmd_t *pmd;
unsigned long next;
@@ -97173,7 +97379,7 @@ index 0fdf968..2183ba3 100644
if (!pmd)
return -ENOMEM;
do {
-@@ -156,7 +180,7 @@ static int vmap_pud_range(pgd_t *pgd, unsigned long addr,
+@@ -156,7 +213,7 @@ static int vmap_pud_range(pgd_t *pgd, unsigned long addr,
pud_t *pud;
unsigned long next;
@@ -97182,7 +97388,7 @@ index 0fdf968..2183ba3 100644
if (!pud)
return -ENOMEM;
do {
-@@ -216,6 +240,12 @@ int is_vmalloc_or_module_addr(const void *x)
+@@ -216,6 +273,12 @@ int is_vmalloc_or_module_addr(const void *x)
if (addr >= MODULES_VADDR && addr < MODULES_END)
return 1;
#endif
@@ -97195,7 +97401,7 @@ index 0fdf968..2183ba3 100644
return is_vmalloc_addr(x);
}
-@@ -236,8 +266,14 @@ struct page *vmalloc_to_page(const void *vmalloc_addr)
+@@ -236,8 +299,14 @@ struct page *vmalloc_to_page(const void *vmalloc_addr)
if (!pgd_none(*pgd)) {
pud_t *pud = pud_offset(pgd, addr);
@@ -97210,7 +97416,31 @@ index 0fdf968..2183ba3 100644
if (!pmd_none(*pmd)) {
pte_t *ptep, pte;
-@@ -1309,6 +1345,16 @@ static struct vm_struct *__get_vm_area_node(unsigned long size,
+@@ -1175,13 +1244,23 @@ void __init vmalloc_init(void)
+ for_each_possible_cpu(i) {
+ struct vmap_block_queue *vbq;
+ struct vfree_deferred *p;
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++ struct stack_deferred *p2;
++#endif
+
+ vbq = &per_cpu(vmap_block_queue, i);
+ spin_lock_init(&vbq->lock);
+ INIT_LIST_HEAD(&vbq->free);
++
+ p = &per_cpu(vfree_deferred, i);
+ init_llist_head(&p->list);
+ INIT_WORK(&p->wq, free_work);
++
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++ p2 = &per_cpu(stack_deferred, i);
++ init_llist_head(&p2->list.list);
++ INIT_WORK(&p2->wq, unmap_work);
++#endif
+ }
+
+ /* Import existing vmlist entries. */
+@@ -1309,6 +1388,16 @@ static struct vm_struct *__get_vm_area_node(unsigned long size,
struct vm_struct *area;
BUG_ON(in_interrupt());
@@ -97227,7 +97457,40 @@ index 0fdf968..2183ba3 100644
if (flags & VM_IOREMAP)
align = 1ul << clamp(fls(size), PAGE_SHIFT, IOREMAP_MAX_ORDER);
-@@ -1534,6 +1580,11 @@ void *vmap(struct page **pages, unsigned int count,
+@@ -1503,7 +1592,7 @@ EXPORT_SYMBOL(vfree);
+ * Free the virtually contiguous memory area starting at @addr,
+ * which was created from the page array passed to vmap().
+ *
+- * Must not be called in interrupt context.
++ * Must not be called in NMI context.
+ */
+ void vunmap(const void *addr)
+ {
+@@ -1514,6 +1603,23 @@ void vunmap(const void *addr)
+ }
+ EXPORT_SYMBOL(vunmap);
+
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++void unmap_process_stacks(struct task_struct *task)
++{
++ if (unlikely(in_interrupt())) {
++ struct stack_deferred *p = &__get_cpu_var(stack_deferred);
++ struct stack_deferred_llist *list = task->stack;
++ list->stack = task->stack;
++ list->lowmem_stack = task->lowmem_stack;
++ if (llist_add((struct llist_node *)&list->list, &p->list.list))
++ schedule_work(&p->wq);
++ } else {
++ __vunmap(task->stack, 0);
++ free_memcg_kmem_pages((unsigned long)task->lowmem_stack, THREAD_SIZE_ORDER);
++ }
++}
++#endif
++
+ /**
+ * vmap - map an array of pages into virtually contiguous space
+ * @pages: array of page pointers
+@@ -1534,6 +1640,11 @@ void *vmap(struct page **pages, unsigned int count,
if (count > totalram_pages)
return NULL;
@@ -97239,7 +97502,7 @@ index 0fdf968..2183ba3 100644
area = get_vm_area_caller((count << PAGE_SHIFT), flags,
__builtin_return_address(0));
if (!area)
-@@ -1634,6 +1685,13 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
+@@ -1634,6 +1745,13 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
if (!size || (size >> PAGE_SHIFT) > totalram_pages)
goto fail;
@@ -97253,20 +97516,7 @@ index 0fdf968..2183ba3 100644
area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED,
start, end, node, gfp_mask, caller);
if (!area)
-@@ -1701,6 +1759,12 @@ static inline void *__vmalloc_node_flags(unsigned long size,
- node, __builtin_return_address(0));
- }
-
-+void *vmalloc_stack(int node)
-+{
-+ return __vmalloc_node(THREAD_SIZE, THREAD_SIZE, THREADINFO_GFP, PAGE_KERNEL,
-+ node, __builtin_return_address(0));
-+}
-+
- /**
- * vmalloc - allocate virtually contiguous memory
- * @size: allocation size
-@@ -1810,10 +1874,9 @@ EXPORT_SYMBOL(vzalloc_node);
+@@ -1810,10 +1928,9 @@ EXPORT_SYMBOL(vzalloc_node);
* For tight control over page level allocator and protection flags
* use __vmalloc() instead.
*/
@@ -97278,7 +97528,7 @@ index 0fdf968..2183ba3 100644
NUMA_NO_NODE, __builtin_return_address(0));
}
-@@ -2120,6 +2183,8 @@ int remap_vmalloc_range_partial(struct vm_area_struct *vma, unsigned long uaddr,
+@@ -2120,6 +2237,8 @@ int remap_vmalloc_range_partial(struct vm_area_struct *vma, unsigned long uaddr,
{
struct vm_struct *area;
@@ -97287,7 +97537,7 @@ index 0fdf968..2183ba3 100644
size = PAGE_ALIGN(size);
if (!PAGE_ALIGNED(uaddr) || !PAGE_ALIGNED(kaddr))
-@@ -2602,7 +2667,11 @@ static int s_show(struct seq_file *m, void *p)
+@@ -2602,7 +2721,11 @@ static int s_show(struct seq_file *m, void *p)
v->addr, v->addr + v->size, v->size);
if (v->caller)
@@ -99028,21 +99278,6 @@ index 5325b54..a0d4d69 100644
return -EFAULT;
*lenp = len;
-diff --git a/net/ieee802154/dgram.c b/net/ieee802154/dgram.c
-index 1846c1f..96d4a9f 100644
---- a/net/ieee802154/dgram.c
-+++ b/net/ieee802154/dgram.c
-@@ -313,8 +313,9 @@ static int dgram_recvmsg(struct kiocb *iocb, struct sock *sk,
- if (saddr) {
- saddr->family = AF_IEEE802154;
- saddr->addr = mac_cb(skb)->sa;
-+ }
-+ if (addr_len)
- *addr_len = sizeof(*saddr);
-- }
-
- if (flags & MSG_TRUNC)
- copied = skb->len;
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 19ab78a..bf575c9 100644
--- a/net/ipv4/af_inet.c
@@ -99533,7 +99768,7 @@ index 2510c02..cfb34fa 100644
pr_err("Unable to proc dir entry\n");
return -ENOMEM;
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
-index e21934b..3ae545c 100644
+index e21934b..4e7cb58 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -59,7 +59,7 @@ struct ping_table {
@@ -99572,28 +99807,7 @@ index e21934b..3ae545c 100644
info, (u8 *)icmph);
#endif
}
-@@ -844,6 +844,8 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
- {
- struct inet_sock *isk = inet_sk(sk);
- int family = sk->sk_family;
-+ struct sockaddr_in *sin;
-+ struct sockaddr_in6 *sin6;
- struct sk_buff *skb;
- int copied, err;
-
-@@ -853,12 +855,19 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
- if (flags & MSG_OOB)
- goto out;
-
-+ if (addr_len) {
-+ if (family == AF_INET)
-+ *addr_len = sizeof(*sin);
-+ else if (family == AF_INET6 && addr_len)
-+ *addr_len = sizeof(*sin6);
-+ }
-+
- if (flags & MSG_ERRQUEUE) {
- if (family == AF_INET) {
+@@ -858,7 +858,7 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
return ip_recv_error(sk, msg, len, addr_len);
#if IS_ENABLED(CONFIG_IPV6)
} else if (family == AF_INET6) {
@@ -99602,19 +99816,7 @@ index e21934b..3ae545c 100644
addr_len);
#endif
}
-@@ -890,7 +899,6 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
- sin->sin_port = 0 /* skb->h.uh->source */;
- sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
- memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
-- *addr_len = sizeof(*sin);
- }
-
- if (isk->cmsg_flags)
-@@ -912,14 +920,13 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
- sin6->sin6_scope_id =
- ipv6_iface_scope_id(&sin6->sin6_addr,
- IP6CB(skb)->iif);
-- *addr_len = sizeof(*sin6);
+@@ -916,10 +916,10 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
}
if (inet6_sk(sk)->rxopt.all)
@@ -99627,7 +99829,7 @@ index e21934b..3ae545c 100644
else if (skb->protocol == htons(ETH_P_IP) && isk->cmsg_flags)
ip_cmsg_recv(msg, skb);
#endif
-@@ -1111,7 +1118,7 @@ static void ping_v4_format_sock(struct sock *sp, struct seq_file *f,
+@@ -1111,7 +1111,7 @@ static void ping_v4_format_sock(struct sock *sp, struct seq_file *f,
from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
0, sock_i_ino(sp),
atomic_read(&sp->sk_refcnt), sp,
@@ -99637,7 +99839,7 @@ index e21934b..3ae545c 100644
static int ping_v4_seq_show(struct seq_file *seq, void *v)
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
-index c04518f..824ebe5 100644
+index c04518f..c402063 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -311,7 +311,7 @@ static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
@@ -99649,25 +99851,7 @@ index c04518f..824ebe5 100644
kfree_skb(skb);
return NET_RX_DROP;
}
-@@ -696,6 +696,9 @@ static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
- if (flags & MSG_OOB)
- goto out;
-
-+ if (addr_len)
-+ *addr_len = sizeof(*sin);
-+
- if (flags & MSG_ERRQUEUE) {
- err = ip_recv_error(sk, msg, len, addr_len);
- goto out;
-@@ -723,7 +726,6 @@ static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
- sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
- sin->sin_port = 0;
- memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
-- *addr_len = sizeof(*sin);
- }
- if (inet->cmsg_flags)
- ip_cmsg_recv(msg, skb);
-@@ -748,16 +750,20 @@ static int raw_init(struct sock *sk)
+@@ -748,16 +748,20 @@ static int raw_init(struct sock *sk)
static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen)
{
@@ -99689,7 +99873,7 @@ index c04518f..824ebe5 100644
if (get_user(len, optlen))
goto out;
-@@ -767,8 +773,8 @@ static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *o
+@@ -767,8 +771,8 @@ static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *o
if (len > sizeof(struct icmp_filter))
len = sizeof(struct icmp_filter);
ret = -EFAULT;
@@ -99700,7 +99884,7 @@ index c04518f..824ebe5 100644
goto out;
ret = 0;
out: return ret;
-@@ -997,7 +1003,7 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
+@@ -997,7 +1001,7 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
0, 0L, 0,
from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
0, sock_i_ino(sp),
@@ -100091,7 +100275,7 @@ index 64f0354..a81b39d 100644
syn_set ? 0 : icsk->icsk_user_timeout, syn_set)) {
/* Has it gone just too far? */
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
-index 77bd16f..5f7174a 100644
+index 77bd16f..3ce366b 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -87,6 +87,7 @@
@@ -100151,20 +100335,7 @@ index 77bd16f..5f7174a 100644
__skb_unlink(skb, rcvq);
__skb_queue_tail(&list_kill, skb);
}
-@@ -1234,6 +1251,12 @@ int udp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
- int is_udplite = IS_UDPLITE(sk);
- bool slow;
-
-+ /*
-+ * Check any passed addresses
-+ */
-+ if (addr_len)
-+ *addr_len = sizeof(*sin);
-+
- if (flags & MSG_ERRQUEUE)
- return ip_recv_error(sk, msg, len, addr_len);
-
-@@ -1243,6 +1266,10 @@ try_again:
+@@ -1243,6 +1260,10 @@ try_again:
if (!skb)
goto out;
@@ -100175,7 +100346,7 @@ index 77bd16f..5f7174a 100644
ulen = skb->len - sizeof(struct udphdr);
copied = len;
if (copied > ulen)
-@@ -1276,7 +1303,7 @@ try_again:
+@@ -1276,7 +1297,7 @@ try_again:
if (unlikely(err)) {
trace_kfree_skb(skb, udp_recvmsg);
if (!peeked) {
@@ -100184,15 +100355,7 @@ index 77bd16f..5f7174a 100644
UDP_INC_STATS_USER(sock_net(sk),
UDP_MIB_INERRORS, is_udplite);
}
-@@ -1295,7 +1322,6 @@ try_again:
- sin->sin_port = udp_hdr(skb)->source;
- sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
- memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
-- *addr_len = sizeof(*sin);
- }
- if (inet->cmsg_flags)
- ip_cmsg_recv(msg, skb);
-@@ -1566,7 +1592,7 @@ csum_error:
+@@ -1566,7 +1587,7 @@ csum_error:
UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite);
drop:
UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
@@ -100201,7 +100364,7 @@ index 77bd16f..5f7174a 100644
kfree_skb(skb);
return -1;
}
-@@ -1585,7 +1611,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
+@@ -1585,7 +1606,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
if (!skb1) {
@@ -100210,7 +100373,7 @@ index 77bd16f..5f7174a 100644
UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
IS_UDPLITE(sk));
UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
-@@ -1786,6 +1812,9 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
+@@ -1786,6 +1807,9 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
goto csum_error;
UDP_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
@@ -100220,7 +100383,7 @@ index 77bd16f..5f7174a 100644
icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
/*
-@@ -2350,7 +2379,7 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
+@@ -2350,7 +2374,7 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
0, sock_i_ino(sp),
atomic_read(&sp->sk_refcnt), sp,
@@ -100670,7 +100833,7 @@ index 091d066..139d410 100644
goto proc_dev_snmp6_fail;
return 0;
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
-index 1f29996..46fe0c7 100644
+index 1f29996..7418779 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -388,7 +388,7 @@ static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb)
@@ -100700,25 +100863,7 @@ index 1f29996..46fe0c7 100644
kfree_skb(skb);
return NET_RX_DROP;
}
-@@ -469,6 +469,9 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
- if (flags & MSG_OOB)
- return -EOPNOTSUPP;
-
-+ if (addr_len)
-+ *addr_len=sizeof(*sin6);
-+
- if (flags & MSG_ERRQUEUE)
- return ipv6_recv_error(sk, msg, len, addr_len);
-
-@@ -507,7 +510,6 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
- sin6->sin6_flowinfo = 0;
- sin6->sin6_scope_id = ipv6_iface_scope_id(&sin6->sin6_addr,
- IP6CB(skb)->iif);
-- *addr_len = sizeof(*sin6);
- }
-
- sock_recv_ts_and_drops(msg, sk, skb);
-@@ -610,7 +612,7 @@ out:
+@@ -610,7 +610,7 @@ out:
return err;
}
@@ -100727,7 +100872,7 @@ index 1f29996..46fe0c7 100644
struct flowi6 *fl6, struct dst_entry **dstp,
unsigned int flags)
{
-@@ -922,12 +924,15 @@ do_confirm:
+@@ -922,12 +922,15 @@ do_confirm:
static int rawv6_seticmpfilter(struct sock *sk, int level, int optname,
char __user *optval, int optlen)
{
@@ -100744,7 +100889,7 @@ index 1f29996..46fe0c7 100644
return 0;
default:
return -ENOPROTOOPT;
-@@ -940,6 +945,7 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
+@@ -940,6 +943,7 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
int len;
@@ -100752,7 +100897,7 @@ index 1f29996..46fe0c7 100644
switch (optname) {
case ICMPV6_FILTER:
-@@ -951,7 +957,8 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
+@@ -951,7 +955,8 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
len = sizeof(struct icmp6_filter);
if (put_user(len, optlen))
return -EFAULT;
@@ -100912,7 +101057,7 @@ index 889079b..a04512c 100644
}
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
-index 1e586d9..384a9c9 100644
+index 1e586d9..2b8ad76 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -76,6 +76,10 @@ static unsigned int udp6_ehashfn(struct net *net,
@@ -100926,17 +101071,7 @@ index 1e586d9..384a9c9 100644
int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
{
const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2);
-@@ -392,6 +396,9 @@ int udpv6_recvmsg(struct kiocb *iocb, struct sock *sk,
- int is_udp4;
- bool slow;
-
-+ if (addr_len)
-+ *addr_len = sizeof(struct sockaddr_in6);
-+
- if (flags & MSG_ERRQUEUE)
- return ipv6_recv_error(sk, msg, len, addr_len);
-
-@@ -435,7 +442,7 @@ try_again:
+@@ -435,7 +439,7 @@ try_again:
if (unlikely(err)) {
trace_kfree_skb(skb, udpv6_recvmsg);
if (!peeked) {
@@ -100945,16 +101080,7 @@ index 1e586d9..384a9c9 100644
if (is_udp4)
UDP_INC_STATS_USER(sock_net(sk),
UDP_MIB_INERRORS,
-@@ -475,7 +482,7 @@ try_again:
- ipv6_iface_scope_id(&sin6->sin6_addr,
- IP6CB(skb)->iif);
- }
-- *addr_len = sizeof(*sin6);
-+
- }
-
- if (np->rxopt.all)
-@@ -690,7 +697,7 @@ csum_error:
+@@ -690,7 +694,7 @@ csum_error:
UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite);
drop:
UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
@@ -100963,7 +101089,7 @@ index 1e586d9..384a9c9 100644
kfree_skb(skb);
return -1;
}
-@@ -747,7 +754,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
+@@ -747,7 +751,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
if (likely(skb1 == NULL))
skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
if (!skb1) {
@@ -100972,7 +101098,7 @@ index 1e586d9..384a9c9 100644
UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
IS_UDPLITE(sk));
UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
-@@ -886,6 +893,9 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
+@@ -886,6 +890,9 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
goto csum_error;
UDP6_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
@@ -101192,28 +101318,6 @@ index 7932697..a13d158 100644
} while (!res);
return res;
}
-diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
-index 0b44d85..1a7f88b 100644
---- a/net/l2tp/l2tp_ip.c
-+++ b/net/l2tp/l2tp_ip.c
-@@ -518,6 +518,9 @@ static int l2tp_ip_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m
- if (flags & MSG_OOB)
- goto out;
-
-+ if (addr_len)
-+ *addr_len = sizeof(*sin);
-+
- skb = skb_recv_datagram(sk, flags, noblock, &err);
- if (!skb)
- goto out;
-@@ -540,7 +543,6 @@ static int l2tp_ip_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m
- sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
- sin->sin_port = 0;
- memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
-- *addr_len = sizeof(*sin);
- }
- if (inet->cmsg_flags)
- ip_cmsg_recv(msg, skb);
diff --git a/net/llc/llc_proc.c b/net/llc/llc_proc.c
index 1a3c7e0..80f8b0c 100644
--- a/net/llc/llc_proc.c