[ 31.738806][ T381] netem: version 1.3 [ 32.130657][ T386] ================================================================== [ 32.130919][ T386] BUG: KASAN: global-out-of-bounds in snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 32.131212][ T386] Read of size 8 at addr ffffffff99ee3970 by task nstat/386 [ 32.131439][ T386] [ 32.131527][ T386] CPU: 2 UID: 0 PID: 386 Comm: nstat Not tainted 6.17.0-rc3-virtme #1 PREEMPT(full) [ 32.131532][ T386] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 32.131535][ T386] Call Trace: [ 32.131537][ T386] [ 32.131538][ T386] dump_stack_lvl+0x82/0xc0 [ 32.131545][ T386] print_address_description.constprop.0+0x2c/0x3a0 [ 32.131551][ T386] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 32.131555][ T386] print_report+0xb4/0x270 [ 32.131558][ T386] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 32.131561][ T386] ? kasan_addr_to_slab+0x21/0x70 [ 32.131564][ T386] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 32.131567][ T386] kasan_report+0xca/0x100 [ 32.131571][ T386] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 32.131577][ T386] snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 32.131582][ T386] ? sockstat6_seq_show+0x1d0/0x1d0 [ 32.131594][ T386] ? rcu_is_watching+0x12/0xb0 [ 32.131599][ T386] ? trace_kmalloc+0x26/0xd0 [ 32.131604][ T386] ? __kvmalloc_node_noprof+0x23f/0x570 [ 32.131610][ T386] snmp6_seq_show+0x68/0x190 [ 32.131613][ T386] seq_read_iter+0x3fa/0x1060 [ 32.131622][ T386] seq_read+0x2cc/0x4b0 [ 32.131625][ T386] ? seq_read_iter+0x1060/0x1060 [ 32.131628][ T386] ? __might_fault+0x117/0x170 [ 32.131634][ T386] ? __might_fault+0x117/0x170 [ 32.131638][ T386] ? cp_new_stat+0x3c6/0x540 [ 32.131641][ T386] ? inode_set_bytes+0xa0/0xa0 [ 32.131646][ T386] proc_reg_read+0x1aa/0x270 [ 32.131651][ T386] vfs_read+0x17e/0xda0 [ 32.131656][ T386] ? vfs_getattr_nosec+0x2b5/0x3e0 [ 32.131659][ T386] ? kernel_read+0x1f0/0x1f0 [ 32.131662][ T386] ? vfs_fstat+0x3f/0x80 [ 32.131665][ T386] ? __do_sys_newfstat+0x7b/0xc0 [ 32.131668][ T386] ? __do_sys_fstat+0xc0/0xc0 [ 32.131674][ T386] ksys_read+0xf7/0x1d0 [ 32.131677][ T386] ? vfs_write+0x12c0/0x12c0 [ 32.131682][ T386] do_syscall_64+0xc1/0x370 [ 32.131687][ T386] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 32.131691][ T386] RIP: 0033:0x7efe19415292 [ 32.131695][ T386] 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 [ 32.131698][ T386] RSP: 002b:00007ffcb9eb37b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 32.131701][ T386] RAX: ffffffffffffffda RBX: 000000000b548910 RCX: 00007efe19415292 [ 32.131704][ T386] RDX: 0000000000000400 RSI: 000000000b548500 RDI: 0000000000000006 [ 32.131706][ T386] RBP: 00007efe1950d5c0 R08: 0000000000000006 R09: 0000000000000000 [ 32.131708][ T386] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000b548910 [ 32.131710][ T386] R13: 0000000000000d68 R14: 00007efe1950c9c0 R15: 0000000000000d68 [ 32.131716][ T386] [ 32.131717][ T386] [ 32.139767][ T386] The buggy address belongs to the variable: [ 32.139958][ T386] snmp6_ipstats_list+0x210/0x3e0 [ 32.140113][ T386] [ 32.140201][ T386] The buggy address belongs to the physical page: [ 32.140391][ T386] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x368e3 [ 32.140671][ T386] flags: 0x80000000002000(reserved|node=0|zone=1) [ 32.140874][ T386] raw: 0080000000002000 ffffea0000da38c8 ffffea0000da38c8 0000000000000000 [ 32.141162][ T386] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 32.141438][ T386] page dumped because: kasan: bad access detected [ 32.141636][ T386] [ 32.141715][ T386] Memory state around the buggy address: [ 32.141871][ T386] ffffffff99ee3800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.142103][ T386] ffffffff99ee3880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.142327][ T386] >ffffffff99ee3900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f9 f9 [ 32.142554][ T386] ^ [ 32.142779][ T386] ffffffff99ee3980: f9 f9 f9 f9 00 00 00 00 00 01 f9 f9 f9 f9 f9 f9 [ 32.143006][ T386] ffffffff99ee3a00: 00 00 04 f9 f9 f9 f9 f9 00 00 00 01 f9 f9 f9 f9 [ 32.143230][ T386] ================================================================== [ 32.143510][ T386] Disabling lock debugging due to kernel taint