diff options
| -rw-r--r-- | fs/exec.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/fs/exec.c b/fs/exec.c index 6450157062ea..cbd183daaad4 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1762,14 +1762,27 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs) goto fail_unlock; if (ispipe) { - core_limit = RLIM_INFINITY; helper_argv = argv_split(GFP_KERNEL, corename+1, &helper_argc); /* Terminate the string before the first option */ delimit = strchr(corename, ' '); if (delimit) *delimit = '\0'; + delimit = strrchr(helper_argv[0], '/'); + if (delimit) + delimit++; + else + delimit = helper_argv[0]; + if (!strcmp(delimit, current->comm)) { + printk(KERN_NOTICE "Recursive core dump detected, " + "aborting\n"); + goto fail_unlock; + } + + core_limit = RLIM_INFINITY; + /* SIGPIPE can happen, but it's just never processed */ - if(call_usermodehelper_pipe(corename+1, helper_argv, NULL, &file)) { + if (call_usermodehelper_pipe(corename+1, helper_argv, NULL, + &file)) { printk(KERN_INFO "Core dump to %s pipe failed\n", corename); goto fail_unlock; |