[ 15.434332][ T255] ip (255) used greatest stack depth: 23792 bytes left [ 22.071172][ T305] ================================================================== [ 22.071467][ T305] BUG: KASAN: global-out-of-bounds in snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 22.071773][ T305] Read of size 8 at addr ffffffff954e3970 by task nstat/305 [ 22.072028][ T305] [ 22.072118][ T305] CPU: 0 UID: 0 PID: 305 Comm: nstat Not tainted 6.17.0-rc3-virtme #1 PREEMPT(full) [ 22.072123][ T305] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.072125][ T305] Call Trace: [ 22.072127][ T305] [ 22.072129][ T305] dump_stack_lvl+0x82/0xc0 [ 22.072135][ T305] print_address_description.constprop.0+0x2c/0x3a0 [ 22.072142][ T305] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 22.072146][ T305] print_report+0xb4/0x270 [ 22.072149][ T305] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 22.072153][ T305] ? kasan_addr_to_slab+0x21/0x70 [ 22.072156][ T305] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 22.072159][ T305] kasan_report+0xca/0x100 [ 22.072163][ T305] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 22.072169][ T305] snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 22.072175][ T305] ? sockstat6_seq_show+0x1d0/0x1d0 [ 22.072187][ T305] ? rcu_is_watching+0x12/0xb0 [ 22.072193][ T305] ? trace_kmalloc+0x26/0xd0 [ 22.072197][ T305] ? __kvmalloc_node_noprof+0x23f/0x570 [ 22.072203][ T305] snmp6_seq_show+0x68/0x190 [ 22.072206][ T305] seq_read_iter+0x3fa/0x1060 [ 22.072215][ T305] seq_read+0x2cc/0x4b0 [ 22.072218][ T305] ? seq_read_iter+0x1060/0x1060 [ 22.072221][ T305] ? __might_fault+0x117/0x170 [ 22.072227][ T305] ? __might_fault+0x117/0x170 [ 22.072231][ T305] ? cp_new_stat+0x3c6/0x540 [ 22.072235][ T305] ? inode_set_bytes+0xa0/0xa0 [ 22.072239][ T305] proc_reg_read+0x1aa/0x270 [ 22.072245][ T305] vfs_read+0x17e/0xda0 [ 22.072249][ T305] ? vfs_getattr_nosec+0x2b5/0x3e0 [ 22.072252][ T305] ? kernel_read+0x1f0/0x1f0 [ 22.072255][ T305] ? vfs_fstat+0x3f/0x80 [ 22.072258][ T305] ? __do_sys_newfstat+0x7b/0xc0 [ 22.072261][ T305] ? __do_sys_fstat+0xc0/0xc0 [ 22.072267][ T305] ksys_read+0xf7/0x1d0 [ 22.072271][ T305] ? vfs_write+0x12c0/0x12c0 [ 22.072277][ T305] do_syscall_64+0xc1/0x370 [ 22.072282][ T305] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 22.072286][ T305] RIP: 0033:0x7f321040f292 [ 22.072289][ T305] 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 [ 22.072292][ T305] RSP: 002b:00007ffff32464f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 22.072296][ T305] RAX: ffffffffffffffda RBX: 000000000973b910 RCX: 00007f321040f292 [ 22.072299][ T305] RDX: 0000000000000400 RSI: 000000000973b500 RDI: 0000000000000006 [ 22.072300][ T305] RBP: 00007f32105075c0 R08: 0000000000000006 R09: 0000000000000000 [ 22.072302][ T305] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000973b910 [ 22.072304][ T305] R13: 0000000000000d68 R14: 00007f32105069c0 R15: 0000000000000d68 [ 22.072311][ T305] [ 22.072312][ T305] [ 22.081071][ T305] The buggy address belongs to the variable: [ 22.081283][ T305] snmp6_ipstats_list+0x210/0x3e0 [ 22.081460][ T305] [ 22.081549][ T305] The buggy address belongs to the physical page: [ 22.081759][ T305] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x29ee3 [ 22.082065][ T305] flags: 0x80000000002000(reserved|node=0|zone=1) [ 22.082291][ T305] raw: 0080000000002000 ffffea0000a7b8c8 ffffea0000a7b8c8 0000000000000000 [ 22.082600][ T305] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 22.082902][ T305] page dumped because: kasan: bad access detected [ 22.083122][ T305] [ 22.083208][ T305] Memory state around the buggy address: [ 22.083376][ T305] ffffffff954e3800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.083628][ T305] ffffffff954e3880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.083879][ T305] >ffffffff954e3900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f9 f9 [ 22.084131][ T305] ^ [ 22.084383][ T305] ffffffff954e3980: f9 f9 f9 f9 00 00 00 00 00 01 f9 f9 f9 f9 f9 f9 [ 22.084632][ T305] ffffffff954e3a00: 00 00 04 f9 f9 f9 f9 f9 00 00 00 01 f9 f9 f9 f9 [ 22.084882][ T305] ================================================================== [ 22.085148][ T305] Disabling lock debugging due to kernel taint [ 260.375727][ T4291] netem: version 1.3 [ 435.038023][ T67] sched: DL replenish lagged too much [ 2036.361425][T27778] pm_nl_ctl (27778) used greatest stack depth: 22984 bytes left