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: 1 PID: 25689 Comm: syz-executor1 Not tainted 4.18.0-rc8+ #179 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 syz-executor1 invoked oom-killer: gfp_mask=0x6000c0(GFP_KERNEL), nodemask=(null), order=0, oom_score_adj=0 RIP: 0010:tcp_sk_exit+0x5a/0x230 net/ipv4/tcp_ipv4.c:2496 Code: 03 80 3c syz-executor1 cpuset= 02 00 0f 85 d0 01 00 00 49 / 8b mems_allowed=0 9d 08 09 00 00 48 CPU: 0 PID: 25686 Comm: syz-executor1 Not tainted 4.18.0-rc8+ #179 b8 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 00 Call Trace: 00 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 00 00 00 dump_header+0x27b/0xf64 mm/oom_kill.c:432 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 oom_kill_process.cold.25+0x10/0x10bc mm/oom_kill.c:867 00 00 48 8b bb 90 00 00 00 bb ff ff ff ff RSP: 0018:ffff8801c40d7620 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90013339000 RDX: 0000000000000012 RSI: ffffffff858461a9 RDI: 0000000000000090 RBP: ffff8801c40d7668 R08: ffff8801b0f6c540 R09: ffffed003b6246d6 R10: ffffed003b6246d6 R11: ffff8801db1236b3 R12: 0000000000000000 R13: ffff88019bb98c00 R14: ffffed003881aed8 R15: ffff8801c40d7740 FS: 00007fcf752d3700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000708414 CR3: 00000001b1962000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tcp_sk_init+0xdc6/0x12b0 net/ipv4/tcp_ipv4.c:2601 out_of_memory+0xa8a/0x14d0 mm/oom_kill.c:1081 mem_cgroup_out_of_memory+0x15e/0x210 mm/memcontrol.c:1212 mem_cgroup_oom_synchronize+0x713/0x940 mm/memcontrol.c:1557 pagefault_out_of_memory+0xc8/0x197 mm/oom_kill.c:1107 mm_fault_error+0x1de/0x380 arch/x86/mm/fault.c:1024 __do_page_fault+0xd25/0xe50 arch/x86/mm/fault.c:1424 do_page_fault+0xf6/0x8c0 arch/x86/mm/fault.c:1471 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1160 RIP: 0033:0x46fa8d Code: 54 55 53 48 81 ec 28 21 00 00 8b 8f c0 00 00 00 85 c9 0f 85 4d 01 00 00 c7 87 c0 00 00 00 ff ff ff ff 48 8d 84 24 20 01 00 00 <48> 89 bc 24 00 01 00 00 48 89 fb 41 bd 00 00 00 00 c7 84 24 e0 00 RSP: 002b:0000000000a3d460 EFLAGS: 00010246 RAX: 0000000000a3d580 RBX: 0000000000709f00 RCX: 00000000ffffffff RDX: 0000000000a3fb30 RSI: 00000000004c2186 RDI: 0000000000709f00 RBP: 0000000000a3fb00 R08: 0000000000a44bd0 R09: 00000000004c2186 R10: 0000000001253940 R11: 0000000000000246 R12: 00000000004c2186 R13: 0000000000a3fb30 R14: 0000000000000003 R15: 0000000000000002 Task in /ile0 killed as a result of limit of /ile0 memory: usage 8kB, limit 0kB, failcnt 1900 memory+swap: usage 0kB, limit 9007199254740988kB, failcnt 0 kmem: usage 0kB, limit 9007199254740988kB, failcnt 0 Memory cgroup stats for /ile0: cache:0KB rss:40KB rss_huge:0KB shmem:0KB mapped_file:0KB dirty:0KB writeback:0KB swap:0KB inactive_anon:0KB active_anon:0KB inactive_file:0KB active_file:0KB unevictable:0KB [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [25686] 0 25686 17618 8731 126976 0 0 syz-executor1 Memory cgroup out of memory: Kill process 25686 (syz-executor1) score 8762000 or sacrifice child Killed process 25686 (syz-executor1) total-vm:70472kB, anon-rss:2156kB, file-rss:32768kB, shmem-rss:0kB ops_init+0x101/0x560 net/core/net_namespace.c:128 setup_net+0x3d9/0x980 net/core/net_namespace.c:313 copy_net_ns+0x2b8/0x4d0 net/core/net_namespace.c:436 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: 0033:0x456cb9 Code: Bad RIP value. RSP: 002b:00007fcf752d2c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007fcf752d36d4 RCX: 0000000000456cb9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000060040200 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d63c0 R14: 00000000004c9acf R15: 0000000000000000 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace b57985c4fc94e328 ]--- 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 RSP: 0018:ffff8801c40d7620 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90013339000 RDX: 0000000000000012 RSI: ffffffff858461a9 RDI: 0000000000000090 RBP: ffff8801c40d7668 R08: ffff8801b0f6c540 R09: ffffed003b6246d6 R10: ffffed003b6246d6 R11: ffff8801db1236b3 R12: 0000000000000000 R13: ffff88019bb98c00 R14: ffffed003881aed8 R15: ffff8801c40d7740 FS: 00007fcf752d3700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000456c8f CR3: 00000001b1962000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400