Merge tag 'execve-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull execve updates from Kees Cook:
 "Most are small refactorings and bug fixes, but three things stand out:
  switching timens (which got reverted before) looks solid now,
  FOLL_FORCE has been removed (no failures seen yet across several weeks
  in -next), and some whitespace cleanups (which are long overdue).

   - Add timens support (when switching mm). This version has survived
     in -next for the entire cycle (Andrei Vagin)

   - Various small bug fixes, refactoring, and readability improvements
     (Bernd Edlinger, Rolf Eike Beer, Bo Liu, Li Zetao Liu Shixin)

   - Remove FOLL_FORCE for stack setup (Kees Cook)

   - Whitespace cleanups (Rolf Eike Beer, Kees Cook)"

* tag 'execve-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  binfmt_misc: fix shift-out-of-bounds in check_special_flags
  binfmt: Fix error return code in load_elf_fdpic_binary()
  exec: Remove FOLL_FORCE for stack setup
  binfmt_elf: replace IS_ERR() with IS_ERR_VALUE()
  binfmt_elf: simplify error handling in load_elf_phdrs()
  binfmt_elf: fix documented return value for load_elf_phdrs()
  exec: simplify initial stack size expansion
  binfmt: Fix whitespace issues
  exec: Add comments on check_unsafe_exec() fs counting
  ELF uapi: add spaces before '{'
  selftests/timens: add a test for vfork+exit
  fs/exec: switch timens when a task gets a new mm

2 files changed, 8 insertions, 7 deletions

diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h
index cdb171efc7cb..fee881cded01 100644
--- a/include/linux/nsproxy.h
+++ b/include/linux/nsproxy.h
@@ -94,6 +94,7 @@ static inline struct cred *nsset_cred(struct nsset *set)
 int copy_namespaces(unsigned long flags, struct task_struct *tsk);
 void exit_task_namespaces(struct task_struct *tsk);
 void switch_task_namespaces(struct task_struct *tsk, struct nsproxy *new);
+int exec_task_namespaces(void);
 void free_nsproxy(struct nsproxy *ns);
 int unshare_nsproxy_namespaces(unsigned long, struct nsproxy **,
 	struct cred *, struct fs_struct *);
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index c7b056af9ef0..4c6a8fa5e7ed 100644
--- a/include/uapi/linux/elf.h
+++ b/include/uapi/linux/elf.h
@@ -91,7 +91,7 @@ typedef __s64	Elf64_Sxword;
 #define DT_INIT		12
 #define DT_FINI		13
 #define DT_SONAME	14
-#define DT_RPATH 	15
+#define DT_RPATH	15
 #define DT_SYMBOLIC	16
 #define DT_REL	        17
 #define DT_RELSZ	18
@@ -140,9 +140,9 @@ typedef __s64	Elf64_Sxword;
 #define ELF64_ST_BIND(x)	ELF_ST_BIND(x)
 #define ELF64_ST_TYPE(x)	ELF_ST_TYPE(x)
 
-typedef struct dynamic{
+typedef struct dynamic {
   Elf32_Sword d_tag;
-  union{
+  union {
     Elf32_Sword	d_val;
     Elf32_Addr	d_ptr;
   } d_un;
@@ -173,7 +173,7 @@ typedef struct elf64_rel {
   Elf64_Xword r_info;	/* index and type of relocation */
 } Elf64_Rel;
 
-typedef struct elf32_rela{
+typedef struct elf32_rela {
   Elf32_Addr	r_offset;
   Elf32_Word	r_info;
   Elf32_Sword	r_addend;
@@ -185,7 +185,7 @@ typedef struct elf64_rela {
   Elf64_Sxword r_addend;	/* Constant addend used to compute value */
 } Elf64_Rela;
 
-typedef struct elf32_sym{
+typedef struct elf32_sym {
   Elf32_Word	st_name;
   Elf32_Addr	st_value;
   Elf32_Word	st_size;
@@ -206,7 +206,7 @@ typedef struct elf64_sym {
 
 #define EI_NIDENT	16
 
-typedef struct elf32_hdr{
+typedef struct elf32_hdr {
   unsigned char	e_ident[EI_NIDENT];
   Elf32_Half	e_type;
   Elf32_Half	e_machine;
@@ -246,7 +246,7 @@ typedef struct elf64_hdr {
 #define PF_W		0x2
 #define PF_X		0x1
 
-typedef struct elf32_phdr{
+typedef struct elf32_phdr {
   Elf32_Word	p_type;
   Elf32_Off	p_offset;
   Elf32_Addr	p_vaddr;