IPVS: ftp: loaded support on port[0] = 21 socket: no more sockets kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN CPU: 0 PID: 3540 Comm: syz-executor6 Not tainted 4.18.0-rc7+ #175 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:tcp_sk_exit+0x5a/0x230 net/ipv4/tcp_ipv4.c:2496 Code: 03 80 3c 02 00 0f 85 d0 01 00 00 49 8b 9d 08 09 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 90 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 9d 01 00 00 48 8b bb 90 00 00 00 bb ff ff ff ff socket: no more sockets RSP: 0018:ffff880195137620 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90004e2c000 RDX: 0000000000000012 RSI: ffffffff85846199 RDI: 0000000000000090 RBP: ffff880195137668 R08: ffff880190238140 R09: ffffed003b604fc0 R10: ffffed003b604fc0 R11: ffff8801db027e07 R12: 0000000000000001 R13: ffff8801c1be0040 R14: ffffed0032a26ed8 R15: ffff880195137740 syz-executor3 invoked oom-killer: gfp_mask=0x6000c0(GFP_KERNEL), nodemask=(null), order=0, oom_score_adj=0 FS: 00007f3eb6834700(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4b13793d90 CR3: 00000001d8adf000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 syz-executor3 cpuset= DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tcp_sk_init+0xdc6/0x12b0 net/ipv4/tcp_ipv4.c:2601 / mems_allowed=0 CPU: 1 PID: 3536 Comm: syz-executor3 Not tainted 4.18.0-rc7+ #175 ops_init+0x101/0x560 net/core/net_namespace.c:128 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: setup_net+0x3d9/0x980 net/core/net_namespace.c:313 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 copy_net_ns+0x2b8/0x4d0 net/core/net_namespace.c:436 dump_header+0x27b/0xf64 mm/oom_kill.c:432 create_new_namespaces+0x6ad/0x900 kernel/nsproxy.c:107 unshare_nsproxy_namespaces+0xc3/0x1f0 kernel/nsproxy.c:206 ksys_unshare+0x723/0xfb0 kernel/fork.c:2442 __do_sys_unshare kernel/fork.c:2510 [inline] __se_sys_unshare kernel/fork.c:2508 [inline] __x64_sys_unshare+0x31/0x40 kernel/fork.c:2508 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x456b29 oom_kill_process.cold.25+0x10/0x10bc mm/oom_kill.c:867 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 out_of_memory+0xa8a/0x14d0 mm/oom_kill.c:1081 48 89 ca 4d 89 c2 mem_cgroup_out_of_memory+0x15e/0x210 mm/memcontrol.c:1212 4d 89 c8 mem_cgroup_oom_synchronize+0x713/0x940 mm/memcontrol.c:1557 4c 8b 4c 24 08 0f 05 pagefault_out_of_memory+0xc8/0x197 mm/oom_kill.c:1107 <48> 3d 01 f0 ff mm_fault_error+0x1de/0x380 arch/x86/mm/fault.c:1024 ff 0f __do_page_fault+0xd25/0xe50 arch/x86/mm/fault.c:1424 83 cb b4 fb ff c3 66 do_page_fault+0xf6/0x8c0 arch/x86/mm/fault.c:1471 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f3eb6833c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007f3eb68346d4 RCX: 0000000000456b29 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000060000000 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1160 R13: 00000000004d6140 R14: 00000000004c9843 R15: 0000000000000000 Modules linked in: RIP: 0033:0x46f8fd Code: Dumping ftrace buffer: 54 (ftrace buffer empty) 55 53 ---[ end trace 0a06a155d9f03ac2 ]--- 48 81 ec 28 21 00 00 8b 8f c0 00 00 00 RIP: 0010:tcp_sk_exit+0x5a/0x230 net/ipv4/tcp_ipv4.c:2496 85 c9 0f 85 4d 01 00 00 c7 87 c0 Code: 00 00 00 ff ff ff ff 48 8d 84 24 03 20 01 00 00 <48> 89 bc 24 00 01 00 80 00 48 89 fb 41 bd 00 00 3c 00 00 c7 84 24 e0 00 02 RSP: 002b:00007fff2c164dd0 EFLAGS: 00010246 RAX: 00007fff2c164ef0 RBX: 0000000000709f00 RCX: 00000000ffffffff RDX: 00007fff2c1674a0 RSI: 00000000004c1f52 RDI: 0000000000709f00 00 RBP: 00007fff2c167470 R08: 0000000000a44bd0 R09: 00000000004c1f52 R10: 0000000001bdc940 R11: 0000000000000246 R12: 00000000004c1f52 R13: 00007fff2c1674a0 R14: 0000000000000003 R15: 0000000000000002 Task in 0f /ile0 85 killed as a result of limit of /ile0 d0 memory: usage 132kB, limit 0kB, failcnt 3424 01 memory+swap: usage 0kB, limit 9007199254740988kB, failcnt 0 00 kmem: usage 0kB, limit 9007199254740988kB, failcnt 0 00 Memory cgroup stats for 49 /ile0 8b : cache:0KB 9d rss:0KB 08 rss_huge:0KB shmem:0KB mapped_file:132KB dirty:0KB writeback:0KB 09 swap:0KB 00 inactive_anon:0KB 00 active_anon:0KB 48 inactive_file:0KB b8 active_file:0KB 00 unevictable:0KB 00 00 [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name 00 [ 3533] 0 3533 17618 8730 131072 0 0 syz-executor6 00 [ 3536] 0 3536 17618 8728 126976 0 0 syz-executor3 fc Memory cgroup out of memory: Kill process 3533 (syz-executor6) score 8762000 or sacrifice child ff Killed process 3533 (syz-executor6) total-vm:70472kB, anon-rss:2152kB, file-rss:32768kB, shmem-rss:0kB df IPVS: ftp: loaded support on port[0] = 21 48 8d bb 90 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 9d 01 00 00 48 8b bb 90 00 00 00 bb ff ff ff ff RSP: 0018:ffff880195137620 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90004e2c000 RDX: 0000000000000012 RSI: ffffffff85846199 RDI: 0000000000000090 RBP: ffff880195137668 R08: ffff880190238140 R09: ffffed003b604fc0 R10: ffffed003b604fc0 R11: ffff8801db027e07 R12: 0000000000000001 R13: ffff8801c1be0040 R14: ffffed0032a26ed8 R15: ffff880195137740 FS: 00007f3eb6834700(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4b13793d90 CR3: 00000001d8adf000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400