<html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body> Hello, The following auditd segfault occurs during shutdown but can be reproduced using the service stop command... <span class="" style="color: rgb(23, 43, 77); font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">service auditd stop <span class="comment linenumber react-syntax-highlighter-line-number" style="flex-shrink: 0; box-sizing: border-box; padding-left: 8px; margin-right: 8px; text-align: right; user-select: none; display: inline-block; min-width: 1.25em; font-style: normal; color: rgb(80, 95, 121) !important; padding-right: 1em; font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">2<span style="color: rgb(23, 43, 77); font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">root@aug-test:/# 2021 Aug 4 12:47:22 aug-test Process 687 (auditd) of user 0 dumped core. <span class="comment linenumber react-syntax-highlighter-line-number" style="flex-shrink: 0; box-sizing: border-box; padding-left: 8px; margin-right: 8px; text-align: right; user-select: none; display: inline-block; min-width: 1.25em; font-style: normal; color: rgb(80, 95, 121) !important; padding-right: 1em; font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">3<span style="color: rgb(23, 43, 77); font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;"> <span class="comment linenumber react-syntax-highlighter-line-number" style="flex-shrink: 0; box-sizing: border-box; padding-left: 8px; margin-right: 8px; text-align: right; user-select: none; display: inline-block; min-width: 1.25em; font-style: normal; color: rgb(80, 95, 121) !important; padding-right: 1em; font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">4<span style="color: rgb(23, 43, 77); font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">Stack trace of thread 687: <span class="comment linenumber react-syntax-highlighter-line-number" style="flex-shrink: 0; box-sizing: border-box; padding-left: 8px; margin-right: 8px; text-align: right; user-select: none; display: inline-block; min-width: 1.25em; font-style: normal; color: rgb(80, 95, 121) !important; padding-right: 1em; font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">5<span style="color: rgb(23, 43, 77); font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">#0 0x00007f18bb1657e4 fclose (libc.so.6) <span class="comment linenumber react-syntax-highlighter-line-number" style="flex-shrink: 0; box-sizing: border-box; padding-left: 8px; margin-right: 8px; text-align: right; user-select: none; display: inline-block; min-width: 1.25em; font-style: normal; color: rgb(80, 95, 121) !important; padding-right: 1em; font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">6<span style="color: rgb(23, 43, 77); font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">#1 0x000055b88ab50ec0 n/a (auditd) <span class="comment linenumber react-syntax-highlighter-line-number" style="flex-shrink: 0; box-sizing: border-box; padding-left: 8px; margin-right: 8px; text-align: right; user-select: none; display: inline-block; min-width: 1.25em; font-style: normal; color: rgb(80, 95, 121) !important; padding-right: 1em; font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">7<span style="color: rgb(23, 43, 77); font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">#2 0x000055b88ab4e421 n/a (auditd) <span class="comment linenumber react-syntax-highlighter-line-number" style="flex-shrink: 0; box-sizing: border-box; padding-left: 8px; margin-right: 8px; text-align: right; user-select: none; display: inline-block; min-width: 1.25em; font-style: normal; color: rgb(80, 95, 121) !important; padding-right: 1em; font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">8<span style="color: rgb(23, 43, 77); font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">#3 0x000055b88ab4d9a7 n/a (auditd) <span class="comment linenumber react-syntax-highlighter-line-number" style="flex-shrink: 0; box-sizing: border-box; padding-left: 8px; margin-right: 8px; text-align: right; user-select: none; display: inline-block; min-width: 1.25em; font-style: normal; color: rgb(80, 95, 121) !important; padding-right: 1em; font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">9<span style="color: rgb(23, 43, 77); font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">#4 0x00007f18bb11a09b __libc_start_main (libc.so.6) <span class="comment linenumber react-syntax-highlighter-line-number" style="flex-shrink: 0; box-sizing: border-box; padding-left: 8px; margin-right: 8px; text-align: right; user-select: none; display: inline-block; min-width: 1.25em; font-style: normal; color: rgb(80, 95, 121) !important; padding-right: 1em; font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">10<span style="color: rgb(23, 43, 77); font-family: SFMono-Medium, "SF Mono", "Segoe UI Mono", "Roboto Mono", "Ubuntu Mono", Menlo, Consolas, Courier, monospace; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(244, 245, 247); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">#5 0x000055b88ab4df4a n/a (auditd) Setting <span style="color: rgb(201, 209, 217); font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace; font-size: 12px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: pre; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgba(46, 160, 67, 0.2); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">AUDIT_WRITE_LOGS to "yes" corrects this problem however we have a requirement to disable these logs (i.e. AUDIT_WRITE_LOGS needs to be set to "no") After perusing the source I suspect that one of these unconditional fclose()s is causing the problem... <pre>git diff ./src/aureport.c diff --git a/src/aureport.c b/src/aureport.c index 22618f0..6359144 100644 --- a/src/aureport.c +++ b/src/aureport.c @@ -277,7 +277,8 @@ static int process_log_fd(const char *filename) list_clear(entries); free(entries); } while (ret == 0); - fclose(log_fd); + if (log_fd) + fclose(log_fd); // This is the per file action items very_last_event.sec = last_event.sec; very_last_event.milli = last_event.milli; </pre> <pre>git diff ./src/ausearch.c</pre> <pre>diff --git a/src/ausearch.c b/src/ausearch.c</pre> <pre>index 4a6bdae..df14df5 100644</pre> <pre>--- a/src/ausearch.c</pre> <pre>+++ b/src/ausearch.c</pre> <pre>@@ -481,7 +481,8 @@ static int process_log_fd(void)</pre> <pre> checkpt_failure |= CP_CORRUPTED;</pre> <pre> list_clear(entries);</pre> <pre> free(entries);</pre> <pre>- fclose(log_fd);</pre> <pre>+ if (log_fd)</pre> <pre>+ fclose(log_fd);</pre> <pre> return 10;</pre> <pre> }</pre> <pre> if (just_one) {</pre> <pre>@@ -497,7 +498,8 @@ static int process_log_fd(void)</pre> <pre> if (set_ChkPtLastEvent(&entries->e)) {</pre> <pre> list_clear(entries);</pre> <pre> free(entries);</pre> <pre>- fclose(log_fd);</pre> <pre>+ if (log_fd)</pre> <pre>+ fclose(log_fd);</pre> <pre> return 4; /* no memory */</pre> <pre> }</pre> <pre> }</pre> <pre>@@ -505,7 +507,8 @@ static int process_log_fd(void)</pre> <pre> list_clear(entries);</pre> <pre> free(entries);</pre> <pre> } while (ret == 0);</pre> <pre>- fclose(log_fd);</pre> <pre>+ if (log_fd)</pre> <pre>+ fclose(log_fd);</pre> <pre> </pre> <pre> return 0;</pre> <pre> }</pre> However I have not tested these changes. Even though this is a benign problem I believe that it warrants a correction. Please open a ticket and respond with the ticket id so that we can track this problem/solution. <pre class="moz-signature" cols="72">-- Kind Regards, Thomas Brown Linux Developer EPS PBU RT Solution Services 411 Leggett Drive Suite 502 Kanata, ON, Canada K2K 3C9 Tel: 613-963-1016 Fax: 613-599-1060</pre> </body> </html>