[ 13.648582][ T249] ip (249) used greatest stack depth: 24448 bytes left [ 14.313769][ T254] ip (254) used greatest stack depth: 24320 bytes left [ 16.937017][ T272] ip (272) used greatest stack depth: 24080 bytes left [ 33.591293][ T385] netem: version 1.3 [ 34.045952][ T390] ================================================================== [ 34.046293][ T390] BUG: KASAN: global-out-of-bounds in snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 34.046585][ T390] Read of size 8 at addr ffffffff8d2e3970 by task nstat/390 [ 34.046833][ T390] [ 34.046920][ T390] CPU: 0 UID: 0 PID: 390 Comm: nstat Not tainted 6.17.0-rc3-virtme #1 PREEMPT(full) [ 34.046925][ T390] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.046927][ T390] Call Trace: [ 34.046929][ T390] [ 34.046931][ T390] dump_stack_lvl+0x82/0xc0 [ 34.046937][ T390] print_address_description.constprop.0+0x2c/0x3a0 [ 34.046943][ T390] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 34.046947][ T390] print_report+0xb4/0x270 [ 34.046950][ T390] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 34.046953][ T390] ? kasan_addr_to_slab+0x21/0x70 [ 34.046956][ T390] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 34.046960][ T390] kasan_report+0xca/0x100 [ 34.046963][ T390] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 34.046969][ T390] snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 34.046974][ T390] ? sockstat6_seq_show+0x1d0/0x1d0 [ 34.046986][ T390] ? rcu_is_watching+0x12/0xb0 [ 34.046992][ T390] ? trace_kmalloc+0x26/0xd0 [ 34.046997][ T390] ? __kvmalloc_node_noprof+0x23f/0x570 [ 34.047002][ T390] snmp6_seq_show+0x68/0x190 [ 34.047005][ T390] seq_read_iter+0x3fa/0x1060 [ 34.047014][ T390] seq_read+0x2cc/0x4b0 [ 34.047017][ T390] ? seq_read_iter+0x1060/0x1060 [ 34.047021][ T390] ? __might_fault+0x117/0x170 [ 34.047026][ T390] ? __might_fault+0x117/0x170 [ 34.047031][ T390] ? cp_new_stat+0x3c6/0x540 [ 34.047034][ T390] ? inode_set_bytes+0xa0/0xa0 [ 34.047039][ T390] proc_reg_read+0x1aa/0x270 [ 34.047044][ T390] vfs_read+0x17e/0xda0 [ 34.047049][ T390] ? vfs_getattr_nosec+0x2b5/0x3e0 [ 34.047051][ T390] ? kernel_read+0x1f0/0x1f0 [ 34.047055][ T390] ? vfs_fstat+0x3f/0x80 [ 34.047057][ T390] ? __do_sys_newfstat+0x7b/0xc0 [ 34.047060][ T390] ? __do_sys_fstat+0xc0/0xc0 [ 34.047067][ T390] ksys_read+0xf7/0x1d0 [ 34.047070][ T390] ? vfs_write+0x12c0/0x12c0 [ 34.047075][ T390] do_syscall_64+0xc1/0x370 [ 34.047080][ T390] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 34.047084][ T390] RIP: 0033:0x7f2cef58c292 [ 34.047088][ T390] Code: c0 e9 b2 fe ff ff 50 48 8d 3d 6a 15 0c 00 e8 65 e1 01 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 54 24 [ 34.047091][ T390] RSP: 002b:00007fff98ba2558 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 34.047095][ T390] RAX: ffffffffffffffda RBX: 000000002177e910 RCX: 00007f2cef58c292 [ 34.047097][ T390] RDX: 0000000000000400 RSI: 000000002177e500 RDI: 0000000000000006 [ 34.047099][ T390] RBP: 00007f2cef6845c0 R08: 0000000000000006 R09: 0000000000000000 [ 34.047101][ T390] R10: 0000000000000000 R11: 0000000000000246 R12: 000000002177e910 [ 34.047103][ T390] R13: 0000000000000d68 R14: 00007f2cef6839c0 R15: 0000000000000d68 [ 34.047109][ T390] [ 34.047110][ T390] [ 34.055416][ T390] The buggy address belongs to the variable: [ 34.055619][ T390] snmp6_ipstats_list+0x210/0x3e0 [ 34.055783][ T390] [ 34.055866][ T390] The buggy address belongs to the physical page: [ 34.056067][ T390] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1fae3 [ 34.056362][ T390] flags: 0x80000000002000(reserved|node=0|zone=1) [ 34.056569][ T390] raw: 0080000000002000 ffffea00007eb8c8 ffffea00007eb8c8 0000000000000000 [ 34.056862][ T390] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 34.057153][ T390] page dumped because: kasan: bad access detected [ 34.057360][ T390] [ 34.057440][ T390] Memory state around the buggy address: [ 34.057597][ T390] ffffffff8d2e3800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 34.057835][ T390] ffffffff8d2e3880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 34.058071][ T390] >ffffffff8d2e3900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f9 f9 [ 34.058308][ T390] ^ [ 34.058542][ T390] ffffffff8d2e3980: f9 f9 f9 f9 00 00 00 00 00 01 f9 f9 f9 f9 f9 f9 [ 34.058777][ T390] ffffffff8d2e3a00: 00 00 04 f9 f9 f9 f9 f9 00 00 00 01 f9 f9 f9 f9 [ 34.059011][ T390] ================================================================== [ 34.059395][ T390] Disabling lock debugging due to kernel taint [ 127.939272][ T1531] mptcp_connect (1531) used greatest stack depth: 24032 bytes left [ 180.388181][ T2132] mptcp_connect (2132) used greatest stack depth: 23712 bytes left