write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory BUG: memory leak unreferenced object 0xffff888110b84920 (size 32): comm "syz-executor730", pid 8413, jiffies 4294944962 (age 20.240s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 01 00 00 00 00 00 00 00 00 00 00 00 00 00 02 00 ................ backtrace: [<000000002acd60c4>] kmalloc include/linux/slab.h:552 [inline] [<000000002acd60c4>] kzalloc include/linux/slab.h:682 [inline] [<000000002acd60c4>] ip_mc_add1_src net/ipv4/igmp.c:1971 [inline] [<000000002acd60c4>] ip_mc_add_src+0x348/0x450 net/ipv4/igmp.c:2095 [<0000000047b4b203>] ip_mc_source+0x3d4/0x610 net/ipv4/igmp.c:2416 [<000000000b19c0a7>] do_ip_setsockopt net/ipv4/ip_sockglue.c:1294 [inline] [<000000000b19c0a7>] ip_setsockopt+0x15d8/0x1f70 net/ipv4/ip_sockglue.c:1423 [<00000000a3acdddc>] tcp_setsockopt+0x70/0x13f0 net/ipv4/tcp.c:3598 [<00000000c7a3bf66>] __sys_setsockopt+0x1b0/0x360 net/socket.c:2115 [<00000000fc7e916e>] __do_sys_setsockopt net/socket.c:2126 [inline] [<00000000fc7e916e>] __se_sys_setsockopt net/socket.c:2123 [inline] [<00000000fc7e916e>] __x64_sys_setsockopt+0x22/0x30 net/socket.c:2123 [<0000000023b21ac4>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 [<00000000448966b9>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory