diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c index ce1824f47ba6a32222e4df6cea90099de101b9f8..c3deb2e35f2030a43fb15a1d918d7bcf01ca1fe4 100644 --- a/fs/binfmt_aout.c +++ b/fs/binfmt_aout.c @@ -330,6 +330,7 @@ static int load_aout_binary(struct linux_binprm * bprm) #ifdef __alpha__ regs->gp = ex.a_gpvalue; #endif + finalize_exec(bprm); start_thread(regs, ex.a_entry, current->mm->start_stack); return 0; } diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index bdb201230bae93c408cf1972b6f9bb92ad37e478..3edca6cb9a3397eb23b3614d88226f5a49282439 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -1155,6 +1155,7 @@ static int load_elf_binary(struct linux_binprm *bprm) ELF_PLAT_INIT(regs, reloc_func_desc); #endif + finalize_exec(bprm); start_thread(regs, elf_entry, bprm->p); retval = 0; out: diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c index 429326b6e2e7088dc1c67c770122beb7b004152b..d90993adeffa3d19186bcb50aeb85110bf971a7f 100644 --- a/fs/binfmt_elf_fdpic.c +++ b/fs/binfmt_elf_fdpic.c @@ -463,6 +463,7 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm) dynaddr); #endif + finalize_exec(bprm); /* everything is now ready... get the userspace context ready to roll */ entryaddr = interp_params.entry_addr ?: exec_params.entry_addr; start_thread(regs, entryaddr, current->mm->start_stack); diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c index 5d6b94475f272629dc3f8c252749aff08790766d..82a48e8300181423bd589e52e673c2576c3da32d 100644 --- a/fs/binfmt_flat.c +++ b/fs/binfmt_flat.c @@ -994,6 +994,7 @@ static int load_flat_binary(struct linux_binprm *bprm) FLAT_PLAT_INIT(regs); #endif + finalize_exec(bprm); pr_debug("start_thread(regs=0x%p, entry=0x%lx, start_stack=0x%lx)\n", regs, start_addr, current->mm->start_stack); start_thread(regs, start_addr, current->mm->start_stack); diff --git a/fs/exec.c b/fs/exec.c index f4469ab88c7a0f4afe04a4c3795ea1ee536fccfd..422ad79a7a0376462f993702d75b1344e48fa255 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1384,6 +1384,12 @@ void setup_new_exec(struct linux_binprm * bprm) } EXPORT_SYMBOL(setup_new_exec); +/* Runs immediately before start_thread() takes over. */ +void finalize_exec(struct linux_binprm *bprm) +{ +} +EXPORT_SYMBOL(finalize_exec); + /* * Prepare credentials and lock ->cred_guard_mutex. * install_exec_creds() commits the new creds and drops the lock. diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h index b0abe21d6cc9a18310bcb9eea6b16ab762be5272..40e52afbb2b0cddf114ae977c6f6a187816f94f9 100644 --- a/include/linux/binfmts.h +++ b/include/linux/binfmts.h @@ -118,6 +118,7 @@ extern int __must_check remove_arg_zero(struct linux_binprm *); extern int search_binary_handler(struct linux_binprm *); extern int flush_old_exec(struct linux_binprm * bprm); extern void setup_new_exec(struct linux_binprm * bprm); +extern void finalize_exec(struct linux_binprm *bprm); extern void would_dump(struct linux_binprm *, struct file *); extern int suid_dumpable;