[ 282.714756][ T1995] ================================================================== [ 282.715149][ T1995] BUG: KASAN: global-out-of-bounds in snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 282.715469][ T1995] Read of size 8 at addr ffffffffbb4d4290 by task nstat/1995 [ 282.715776][ T1995] [ 282.715870][ T1995] CPU: 3 UID: 0 PID: 1995 Comm: nstat Not tainted 6.17.0-rc3-virtme #1 PREEMPT(full) [ 282.715875][ T1995] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 282.715877][ T1995] Call Trace: [ 282.715880][ T1995] [ 282.715883][ T1995] dump_stack_lvl+0x82/0xc0 [ 282.715893][ T1995] print_address_description.constprop.0+0x2c/0x3a0 [ 282.715901][ T1995] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 282.715909][ T1995] print_report+0xb4/0x270 [ 282.715914][ T1995] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 282.715918][ T1995] ? kasan_addr_to_slab+0x21/0x70 [ 282.715923][ T1995] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 282.715928][ T1995] kasan_report+0xca/0x100 [ 282.715933][ T1995] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 282.715943][ T1995] snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 282.715953][ T1995] ? sockstat6_seq_show+0x1d0/0x1d0 [ 282.715975][ T1995] ? rcu_is_watching+0x12/0xb0 [ 282.715981][ T1995] ? trace_kmalloc+0x26/0xd0 [ 282.715988][ T1995] ? __kvmalloc_node_noprof+0x23f/0x570 [ 282.715996][ T1995] snmp6_seq_show+0x68/0x190 [ 282.716001][ T1995] seq_read_iter+0x3fa/0x1060 [ 282.716012][ T1995] seq_read+0x2cc/0x4b0 [ 282.716015][ T1995] ? seq_read_iter+0x1060/0x1060 [ 282.716019][ T1995] ? __might_fault+0x117/0x170 [ 282.716024][ T1995] ? __might_fault+0x117/0x170 [ 282.716029][ T1995] ? cp_new_stat+0x3c6/0x540 [ 282.716032][ T1995] ? inode_set_bytes+0xa0/0xa0 [ 282.716037][ T1995] proc_reg_read+0x1aa/0x270 [ 282.716042][ T1995] vfs_read+0x17e/0xda0 [ 282.716047][ T1995] ? vfs_getattr_nosec+0x2b5/0x3e0 [ 282.716050][ T1995] ? kernel_read+0x1f0/0x1f0 [ 282.716053][ T1995] ? vfs_fstat+0x3f/0x80 [ 282.716056][ T1995] ? __do_sys_newfstat+0x7b/0xc0 [ 282.716059][ T1995] ? __do_sys_fstat+0xc0/0xc0 [ 282.716065][ T1995] ksys_read+0xf7/0x1d0 [ 282.716068][ T1995] ? vfs_write+0x12c0/0x12c0 [ 282.716074][ T1995] do_syscall_64+0xc1/0x370 [ 282.716079][ T1995] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 282.716083][ T1995] RIP: 0033:0x7f2c02315292 [ 282.716086][ T1995] 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 [ 282.716089][ T1995] RSP: 002b:00007ffd6f596278 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 282.716093][ T1995] RAX: ffffffffffffffda RBX: 00000000349ba910 RCX: 00007f2c02315292 [ 282.716096][ T1995] RDX: 0000000000000400 RSI: 00000000349ba500 RDI: 000000000000000a [ 282.716097][ T1995] RBP: 00007f2c0240d5c0 R08: 000000000000000a R09: 0000000000000000 [ 282.716099][ T1995] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000349ba910 [ 282.716101][ T1995] R13: 0000000000000d68 R14: 00007f2c0240c9c0 R15: 0000000000000d68 [ 282.716107][ T1995] [ 282.716108][ T1995] [ 282.725511][ T1995] The buggy address belongs to the variable: [ 282.725727][ T1995] snmp6_ipstats_list+0x210/0x3e0 [ 282.725904][ T1995] [ 282.726006][ T1995] The buggy address belongs to the physical page: [ 282.726244][ T1995] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x27ad4 [ 282.726568][ T1995] flags: 0x80000000002000(reserved|node=0|zone=1) [ 282.726834][ T1995] raw: 0080000000002000 ffffea00009eb508 ffffea00009eb508 0000000000000000 [ 282.727169][ T1995] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 282.727482][ T1995] page dumped because: kasan: bad access detected [ 282.727701][ T1995] [ 282.727791][ T1995] Memory state around the buggy address: [ 282.727996][ T1995] ffffffffbb4d4180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 282.728311][ T1995] ffffffffbb4d4200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 282.728633][ T1995] >ffffffffbb4d4280: 00 00 f9 f9 f9 f9 f9 f9 00 00 00 00 00 01 f9 f9 [ 282.728891][ T1995] ^ [ 282.729098][ T1995] ffffffffbb4d4300: f9 f9 f9 f9 00 00 04 f9 f9 f9 f9 f9 00 00 00 01 [ 282.729355][ T1995] ffffffffbb4d4380: f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9 00 00 06 f9 [ 282.729647][ T1995] ================================================================== [ 282.729931][ T1995] Disabling lock debugging due to kernel taint