Version-Release number of selected component: systemd-222-8.fc23 Additional info: reporter: libreport-2.6.3 backtrace_rating: 4 cmdline: /usr/lib/systemd/systemd-logind crash_function: epoll_ctl executable: /usr/lib/systemd/systemd-logind global_pid: 1450 kernel: 4.2.6-301.fc23.x86_64 runlevel: N 5 type: CCpp uid: 0 Truncated backtrace: [New LWP 1450] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `/usr/lib/systemd/systemd-logind'. Program terminated with signal SIGABRT, Aborted. #0 0x00007f26c98b6053 in epoll_ctl () at ../sysdeps/unix/syscall-template.S:86 86 T_PSEUDO_END (SYSCALL_SYMBOL) Thread 1 (Thread 0x7f26ca7c88c0 (LWP 1450)): #0 0x00007f26c98b6053 in epoll_ctl () at ../sysdeps/unix/syscall-template.S:86 No locals. #1 0x000055e503a3ede3 in sd_event_wait (e=0x55e504e8b2c0, timeout=18446744073709551615) at src/libsystemd/sd-event/sd-event.c:2374 ev_queue = 0x7ffdde2b3df0 ev_queue_max = <optimized out> r = <optimized out> m = <optimized out> i = <optimized out> __PRETTY_FUNCTION__ = "sd_event_wait" #2 0x000055e5039e7fcc in sd_event_run (timeout=18446744073709551615, e=0x55e504e8b2c0) at src/libsystemd/sd-event/sd-event.c:2497 r = <optimized out> #3 manager_run (m=0x55e504e8a0d0) at src/login/logind.c:1118 r = <optimized out> #4 main (argc=<optimized out>, argv=<optimized out>) at src/login/logind.c:1180 m = <optimized out> r = <optimized out> __func__ = "main" From To Syms Read Shared Object Library No linux-vdso.so.1 0x00007f26ca3bf2b0 0x00007f26ca3d1bab Yes /lib64/libselinux.so.1 0x00007f26ca1b3150 0x00007f26ca1b609f Yes /lib64/librt.so.1 0x00007f26c9fa9f80 0x00007f26c9fadec1 Yes /lib64/libacl.so.1 0x00007f26c9d93af0 0x00007f26c9da3845 Yes /lib64/libgcc_s.so.1 0x00007f26c9b79a30 0x00007f26c9b86841 Yes /lib64/libpthread.so.0 0x00007f26c97d2760 0x00007f26c99205b4 Yes /lib64/libc.so.6 0x00007f26ca5dcad0 0x00007f26ca5f7380 Yes /lib64/ld-linux-x86-64.so.2 0x00007f26c95446f0 0x00007f26c9593886 Yes /lib64/libpcre.so.1 0x00007f26c933fe60 0x00007f26c9340a4e Yes /lib64/libdl.so.2 0x00007f26c913a3d0 0x00007f26c913c4ca Yes /lib64/libattr.so.1 0x00007f26c8f291d0 0x00007f26c8f2f211 Yes /lib64/libnss_files.so.2 $1 = 0x0 rax 0xfffffffffffffffc -4 rbx 0x1 1 rcx 0x7f26c98b6053 139804566839379 rdx 0x1c 28 rsi 0x7ffdde2b3df0 140728330829296 rdi 0x4 4 rbp 0x7ffdde2b4030 0x7ffdde2b4030 rsp 0x7ffdde2b3de8 0x7ffdde2b3de8 r8 0x0 0 r9 0x7ffdde2b3df0 140728330829296 r10 0xffffffff 4294967295 r11 0x246 582 r12 0xffffffffffffffff -1 r13 0x7ffdde2b3df0 140728330829296 r14 0x7ffdde2b4060 140728330829920 r15 0x55e504e8b2c0 94442118230720 rip 0x7f26c98b6053 0x7f26c98b6053 <epoll_ctl+35> eflags 0x246 [ PF ZF IF ] cs 0x33 51 ss 0x2b 43 ds 0x0 0 es 0x0 0 fs 0x0 0 gs 0x0 0 Dump of assembler code for function epoll_ctl: 0x00007f26c98b6030 <+0>: mov %rcx,%r10 0x00007f26c98b6033 <+3>: mov $0xe9,%eax 0x00007f26c98b6038 <+8>: syscall 0x00007f26c98b603a <+10>: cmp $0xfffffffffffff001,%rax 0x00007f26c98b6040 <+16>: jae 0x7f26c98b6043 <epoll_ctl+19> 0x00007f26c98b6042 <+18>: retq 0x00007f26c98b6043 <+19>: mov 0x2b7e1e(%rip),%rcx # 0x7f26c9b6de68 0x00007f26c98b604a <+26>: neg %eax 0x00007f26c98b604c <+28>: mov %eax,%fs:(%rcx) 0x00007f26c98b604f <+31>: or $0xffffffffffffffff,%rax => 0x00007f26c98b6053 <+35>: retq End of assembler dump. == EXPLOITABLE ==
Created attachment 1104041 [details] File: backtrace
Created attachment 1104042 [details] File: cgroup
Created attachment 1104043 [details] File: core_backtrace
Created attachment 1104044 [details] File: dso_list
Created attachment 1104045 [details] File: environ
Created attachment 1104046 [details] File: limits
Created attachment 1104048 [details] File: maps
Created attachment 1104050 [details] File: mountinfo
Created attachment 1104052 [details] File: namespaces
Created attachment 1104054 [details] File: open_fds
Created attachment 1104056 [details] File: proc_pid_status
Created attachment 1104058 [details] File: var_log_messages
Another user experienced a similar problem: Machine froze while I was away from it. Was running dnf updates when I walked away. reporter: libreport-2.6.3 backtrace_rating: 4 cmdline: /usr/lib/systemd/systemd-udevd crash_function: epoll_ctl executable: /usr/lib/systemd/systemd-udevd global_pid: 902 kernel: 4.2.6-301.fc23.x86_64 package: systemd-222-8.fc23 reason: systemd-udevd killed by SIGABRT runlevel: N 5 type: CCpp uid: 0
*** This bug has been marked as a duplicate of bug 1300212 ***