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home:yukoff:openSUSE:Leap:42.1:Backports
systemd.4328
1080-udevd-parse_argv-warn-if-argumens-are-inva...
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File 1080-udevd-parse_argv-warn-if-argumens-are-invalid.patch of Package systemd.4328
Based on 6f5cf8a8b1de763383f7382821147e538b7dbd6d Mon Sep 17 00:00:00 2001 From: Tom Gundersen <teg@jklm.no> Date: Thu, 18 Sep 2014 19:02:03 +0200 Subject: [PATCH] udevd: parse_argv - warn if argumens are invalid Found by Coverity. Fixes CID #1238780. --- src/udev/udevd.c | 34 ++++++++++++++++++++++++++-------- 1 file changed, 26 insertions(+), 8 deletions(-) --- src/udev/udevd.c +++ src/udev/udevd.c 2014-09-19 10:36:25.602735652 +0000 @@ -1002,11 +1002,20 @@ static void kernel_cmdline_options(struc log_set_max_level(prio); udev_set_log_priority(udev, prio); } else if (startswith(opt, "udev.children-max=")) { - children_max = strtoul(opt + 18, NULL, 0); + r = safe_atoi(opt + 18, &children_max); + if (r < 0) + log_warning("Invalid udev.children-max ignored: %s", opt + 18); } else if (startswith(opt, "udev.exec-delay=")) { - exec_delay = strtoul(opt + 16, NULL, 0); + r = safe_atoi(opt + 16, &exec_delay); + if (r < 0) + log_warning("Invalid udev.exec-delay ignored: %s", opt + 16); } else if (startswith(opt, "udev.event-timeout=")) { - event_timeout_usec = strtoul(opt + 16, NULL, 0) * USEC_PER_SEC; + r = safe_atou64(opt + 16, &event_timeout_usec); + if (r < 0) { + log_warning("Invalid udev.event-timeout ignored: %s", opt + 16); + break; + } + event_timeout_usec *= USEC_PER_SEC; event_timeout_warn_usec = (event_timeout_usec / 3) ? : 1; } @@ -1052,7 +1061,7 @@ int main(int argc, char *argv[]) { label_init("/dev"); for (;;) { - int option; + int option, r; option = getopt_long(argc, argv, "c:de:DtN:hV", options, NULL); if (option == -1) @@ -1063,14 +1072,23 @@ int main(int argc, char *argv[]) { daemonize = true; break; case 'c': - children_max = strtoul(optarg, NULL, 0); + r = safe_atoi(optarg, &children_max); + if (r < 0) + log_warning("Invalid --children-max ignored: %s", optarg); break; case 'e': - exec_delay = strtoul(optarg, NULL, 0); + r = safe_atoi(optarg, &exec_delay); + if (r < 0) + log_warning("Invalid --exec-delay ignored: %s", optarg); break; case 't': - event_timeout_usec = strtoul(optarg, NULL, 0) * USEC_PER_SEC; - event_timeout_warn_usec = (event_timeout_usec / 3) ? : 1; + r = safe_atou64(optarg, &event_timeout_usec); + if (r < 0) + log_warning("Invalig --event-timeout ignored: %s", optarg); + else { + event_timeout_usec *= USEC_PER_SEC; + event_timeout_warn_usec = (event_timeout_usec / 3) ? : 1; + } break; case 'D': debug = true;
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