[ 13.618486][ T253] ip (253) used greatest stack depth: 23624 bytes left [ 30.952016][ T383] netem: version 1.3 [ 31.337007][ T388] ================================================================== [ 31.337268][ T388] BUG: KASAN: global-out-of-bounds in snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 31.337564][ T388] Read of size 8 at addr ffffffffb5ce3970 by task nstat/388 [ 31.337790][ T388] [ 31.337878][ T388] CPU: 2 UID: 0 PID: 388 Comm: nstat Not tainted 6.17.0-rc3-virtme #1 PREEMPT(full) [ 31.337885][ T388] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 31.337889][ T388] Call Trace: [ 31.337893][ T388] [ 31.337895][ T388] dump_stack_lvl+0x82/0xc0 [ 31.337905][ T388] print_address_description.constprop.0+0x2c/0x3a0 [ 31.337922][ T388] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 31.337927][ T388] print_report+0xb4/0x270 [ 31.337930][ T388] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 31.337933][ T388] ? kasan_addr_to_slab+0x21/0x70 [ 31.337936][ T388] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 31.337939][ T388] kasan_report+0xca/0x100 [ 31.337943][ T388] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 31.337949][ T388] snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 31.337954][ T388] ? sockstat6_seq_show+0x1d0/0x1d0 [ 31.337966][ T388] ? rcu_is_watching+0x12/0xb0 [ 31.337981][ T388] ? trace_kmalloc+0x26/0xd0 [ 31.337988][ T388] ? __kvmalloc_node_noprof+0x23f/0x570 [ 31.337994][ T388] snmp6_seq_show+0x68/0x190 [ 31.337998][ T388] seq_read_iter+0x3fa/0x1060 [ 31.338009][ T388] seq_read+0x2cc/0x4b0 [ 31.338012][ T388] ? seq_read_iter+0x1060/0x1060 [ 31.338016][ T388] ? __might_fault+0x117/0x170 [ 31.338025][ T388] ? x86_verw_sel+0x1/0x40 [ 31.338035][ T388] ? __might_fault+0x117/0x170 [ 31.338039][ T388] ? cp_new_stat+0x3c6/0x540 [ 31.338047][ T388] ? inode_set_bytes+0xa0/0xa0 [ 31.338052][ T388] proc_reg_read+0x1aa/0x270 [ 31.338066][ T388] vfs_read+0x17e/0xda0 [ 31.338072][ T388] ? vfs_getattr_nosec+0x2b5/0x3e0 [ 31.338076][ T388] ? kernel_read+0x1f0/0x1f0 [ 31.338079][ T388] ? vfs_fstat+0x3f/0x80 [ 31.338082][ T388] ? __do_sys_newfstat+0x7b/0xc0 [ 31.338084][ T388] ? __do_sys_fstat+0xc0/0xc0 [ 31.338091][ T388] ksys_read+0xf7/0x1d0 [ 31.338094][ T388] ? vfs_write+0x12c0/0x12c0 [ 31.338100][ T388] do_syscall_64+0xc1/0x370 [ 31.338108][ T388] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 31.338111][ T388] RIP: 0033:0x7fe9be5a2292 [ 31.338115][ T388] 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 [ 31.338119][ T388] RSP: 002b:00007ffe0b1cbe38 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 31.338128][ T388] RAX: ffffffffffffffda RBX: 0000000006926910 RCX: 00007fe9be5a2292 [ 31.338131][ T388] RDX: 0000000000000400 RSI: 0000000006926500 RDI: 0000000000000006 [ 31.338132][ T388] RBP: 00007fe9be69a5c0 R08: 0000000000000006 R09: 0000000000000000 [ 31.338134][ T388] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000006926910 [ 31.338136][ T388] R13: 0000000000000d68 R14: 00007fe9be6999c0 R15: 0000000000000d68 [ 31.338143][ T388] [ 31.338144][ T388] [ 31.346121][ T388] The buggy address belongs to the variable: [ 31.346314][ T388] snmp6_ipstats_list+0x210/0x3e0 [ 31.346489][ T388] [ 31.346569][ T388] The buggy address belongs to the physical page: [ 31.346761][ T388] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x128e3 [ 31.347043][ T388] flags: 0x80000000002000(reserved|node=0|zone=1) [ 31.347251][ T388] raw: 0080000000002000 ffffea00004a38c8 ffffea00004a38c8 0000000000000000 [ 31.347534][ T388] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 31.347807][ T388] page dumped because: kasan: bad access detected [ 31.348001][ T388] [ 31.348080][ T388] Memory state around the buggy address: [ 31.348230][ T388] ffffffffb5ce3800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.348457][ T388] ffffffffb5ce3880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.348677][ T388] >ffffffffb5ce3900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f9 f9 [ 31.348903][ T388] ^ [ 31.349129][ T388] ffffffffb5ce3980: f9 f9 f9 f9 00 00 00 00 00 01 f9 f9 f9 f9 f9 f9 [ 31.349350][ T388] ffffffffb5ce3a00: 00 00 04 f9 f9 f9 f9 f9 00 00 00 01 f9 f9 f9 f9 [ 31.349571][ T388] ================================================================== [ 31.349941][ T388] Disabling lock debugging due to kernel taint