[ 46.855657][ T732] pm_nl_ctl (732) used greatest stack depth: 23664 bytes left [ 78.457073][ T1333] ================================================================== [ 78.457347][ T1333] BUG: KASAN: global-out-of-bounds in snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 78.457664][ T1333] Read of size 8 at addr ffffffff9f8e3970 by task nstat/1333 [ 78.457898][ T1333] [ 78.457995][ T1333] CPU: 1 UID: 0 PID: 1333 Comm: nstat Not tainted 6.17.0-rc3-virtme #1 PREEMPT(full) [ 78.458000][ T1333] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 78.458005][ T1333] Call Trace: [ 78.458010][ T1333] [ 78.458013][ T1333] dump_stack_lvl+0x82/0xc0 [ 78.458026][ T1333] print_address_description.constprop.0+0x2c/0x3a0 [ 78.458048][ T1333] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 78.458052][ T1333] print_report+0xb4/0x270 [ 78.458055][ T1333] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 78.458058][ T1333] ? kasan_addr_to_slab+0x21/0x70 [ 78.458062][ T1333] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 78.458065][ T1333] kasan_report+0xca/0x100 [ 78.458068][ T1333] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 78.458074][ T1333] snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 78.458080][ T1333] ? sockstat6_seq_show+0x1d0/0x1d0 [ 78.458092][ T1333] ? rcu_is_watching+0x12/0xb0 [ 78.458109][ T1333] ? trace_kmalloc+0x26/0xd0 [ 78.458118][ T1333] ? __kvmalloc_node_noprof+0x23f/0x570 [ 78.458126][ T1333] snmp6_seq_show+0x68/0x190 [ 78.458130][ T1333] seq_read_iter+0x3fa/0x1060 [ 78.458142][ T1333] seq_read+0x2cc/0x4b0 [ 78.458145][ T1333] ? seq_read_iter+0x1060/0x1060 [ 78.458149][ T1333] ? __might_fault+0x117/0x170 [ 78.458161][ T1333] ? kvm_vcpu_after_set_cpuid+0xa21/0x1200 [ 78.458179][ T1333] ? __might_fault+0x117/0x170 [ 78.458183][ T1333] ? cp_new_stat+0x3c6/0x540 [ 78.458189][ T1333] ? inode_set_bytes+0xa0/0xa0 [ 78.458193][ T1333] proc_reg_read+0x1aa/0x270 [ 78.458210][ T1333] vfs_read+0x17e/0xda0 [ 78.458217][ T1333] ? vfs_getattr_nosec+0x2b5/0x3e0 [ 78.458220][ T1333] ? kernel_read+0x1f0/0x1f0 [ 78.458223][ T1333] ? vfs_fstat+0x3f/0x80 [ 78.458226][ T1333] ? __do_sys_newfstat+0x7b/0xc0 [ 78.458229][ T1333] ? __do_sys_fstat+0xc0/0xc0 [ 78.458236][ T1333] ksys_read+0xf7/0x1d0 [ 78.458239][ T1333] ? vfs_write+0x12c0/0x12c0 [ 78.458245][ T1333] do_syscall_64+0xc1/0x370 [ 78.458255][ T1333] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 78.458264][ T1333] RIP: 0033:0x7f2bccbfd292 [ 78.458273][ T1333] 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 [ 78.458278][ T1333] RSP: 002b:00007ffeacad0988 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 78.458289][ T1333] RAX: ffffffffffffffda RBX: 000000000d1292a0 RCX: 00007f2bccbfd292 [ 78.458291][ T1333] RDX: 0000000000000400 RSI: 000000000d129500 RDI: 0000000000000005 [ 78.458293][ T1333] RBP: 00007f2bcccf55c0 R08: 0000000000000005 R09: 0000000000000000 [ 78.458295][ T1333] R10: 00007f2bccb05268 R11: 0000000000000246 R12: 000000000d1292a0 [ 78.458297][ T1333] R13: 0000000000000d68 R14: 00007f2bcccf49c0 R15: 0000000000000d68 [ 78.458303][ T1333] [ 78.458305][ T1333] [ 78.466475][ T1333] The buggy address belongs to the variable: [ 78.466669][ T1333] snmp6_ipstats_list+0x210/0x3e0 [ 78.466847][ T1333] [ 78.466938][ T1333] The buggy address belongs to the physical page: [ 78.467143][ T1333] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3aae3 [ 78.467430][ T1333] flags: 0x80000000002000(reserved|node=0|zone=1) [ 78.467651][ T1333] raw: 0080000000002000 ffffea0000eab8c8 ffffea0000eab8c8 0000000000000000 [ 78.467942][ T1333] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 78.468220][ T1333] page dumped because: kasan: bad access detected [ 78.468420][ T1333] [ 78.468504][ T1333] Memory state around the buggy address: [ 78.468664][ T1333] ffffffff9f8e3800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 78.468897][ T1333] ffffffff9f8e3880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 78.469126][ T1333] >ffffffff9f8e3900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f9 f9 [ 78.469364][ T1333] ^ [ 78.469590][ T1333] ffffffff9f8e3980: f9 f9 f9 f9 00 00 00 00 00 01 f9 f9 f9 f9 f9 f9 [ 78.469818][ T1333] ffffffff9f8e3a00: 00 00 04 f9 f9 f9 f9 f9 00 00 00 01 f9 f9 f9 f9 [ 78.470043][ T1333] ================================================================== [ 78.470291][ T1333] Disabling lock debugging due to kernel taint