diff options
Diffstat (limited to 'fs/exec.c')
| -rw-r--r-- | fs/exec.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/fs/exec.c b/fs/exec.c index cecee501ce78..ec5df9a38313 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -50,15 +50,12 @@ #include <linux/cn_proc.h> #include <linux/audit.h> #include <linux/tracehook.h> +#include <linux/kmod.h> #include <asm/uaccess.h> #include <asm/mmu_context.h> #include <asm/tlb.h> -#ifdef CONFIG_KMOD -#include <linux/kmod.h> -#endif - #ifdef __alpha__ /* for /sbin/loader handling in search_binary_handler() */ #include <linux/a.out.h> @@ -391,7 +388,7 @@ static int count(char __user * __user * argv, int max) if (!p) break; argv++; - if(++i > max) + if (i++ >= max) return -E2BIG; cond_resched(); } @@ -825,8 +822,6 @@ static int de_thread(struct task_struct *tsk) schedule(); } - if (unlikely(task_child_reaper(tsk) == leader)) - task_active_pid_ns(tsk)->child_reaper = tsk; /* * The only record we have of the real-time age of a * process, regardless of execs it's done, is start_time. @@ -1164,6 +1159,7 @@ EXPORT_SYMBOL(remove_arg_zero); */ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) { + unsigned int depth = bprm->recursion_depth; int try,retval; struct linux_binfmt *fmt; #ifdef __alpha__ @@ -1189,7 +1185,7 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) return retval; /* Remember if the application is TASO. */ - bprm->sh_bang = eh->ah.entry < 0x100000000UL; + bprm->taso = eh->ah.entry < 0x100000000UL; bprm->file = file; bprm->loader = loader; @@ -1224,8 +1220,15 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) continue; read_unlock(&binfmt_lock); retval = fn(bprm, regs); + /* + * Restore the depth counter to its starting value + * in this call, so we don't have to rely on every + * load_binary function to restore it on return. + */ + bprm->recursion_depth = depth; if (retval >= 0) { - tracehook_report_exec(fmt, bprm, regs); + if (depth == 0) + tracehook_report_exec(fmt, bprm, regs); put_binfmt(fmt); allow_write_access(bprm->file); if (bprm->file) @@ -1247,8 +1250,8 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) read_unlock(&binfmt_lock); if (retval != -ENOEXEC || bprm->mm == NULL) { break; -#ifdef CONFIG_KMOD - }else{ +#ifdef CONFIG_MODULES + } else { #define printable(c) (((c)=='\t') || ((c)=='\n') || (0x20<=(c) && (c)<=0x7e)) if (printable(bprm->buf[0]) && printable(bprm->buf[1]) && @@ -1391,7 +1394,7 @@ EXPORT_SYMBOL(set_binfmt); * name into corename, which must have space for at least * CORENAME_MAX_SIZE bytes plus one byte for the zero terminator. */ -static int format_corename(char *corename, int nr_threads, long signr) +static int format_corename(char *corename, long signr) { const char *pat_ptr = core_pattern; int ispipe = (*pat_ptr == '|'); @@ -1498,8 +1501,7 @@ static int format_corename(char *corename, int nr_threads, long signr) * If core_pattern does not include a %p (as is the default) * and core_uses_pid is set, then .%pid will be appended to * the filename. Do not do this for piped commands. */ - if (!ispipe && !pid_in_pattern - && (core_uses_pid || nr_threads)) { + if (!ispipe && !pid_in_pattern && core_uses_pid) { rc = snprintf(out_ptr, out_end - out_ptr, ".%d", task_tgid_vnr(current)); if (rc > out_end - out_ptr) @@ -1762,7 +1764,7 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs) * uses lock_kernel() */ lock_kernel(); - ispipe = format_corename(corename, retval, signr); + ispipe = format_corename(corename, signr); unlock_kernel(); /* * Don't bother to check the RLIMIT_CORE value if core_pattern points |