[ 156.608069][ T330] ================================================================== [ 156.608382][ T330] BUG: KASAN: global-out-of-bounds in snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 156.608699][ T330] Read of size 8 at addr ffffffffad4d4790 by task connect-deny_ip/330 [ 156.608965][ T330] [ 156.609058][ T330] CPU: 2 UID: 0 PID: 330 Comm: connect-deny_ip Not tainted 6.17.0-rc3-virtme #1 PREEMPT(full) [ 156.609064][ T330] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 156.609066][ T330] Call Trace: [ 156.609069][ T330] [ 156.609071][ T330] dump_stack_lvl+0x82/0xc0 [ 156.609077][ T330] print_address_description.constprop.0+0x2c/0x3a0 [ 156.609084][ T330] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 156.609088][ T330] print_report+0xb4/0x270 [ 156.609091][ T330] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 156.609094][ T330] ? kasan_addr_to_slab+0x21/0x70 [ 156.609098][ T330] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 156.609101][ T330] kasan_report+0xca/0x100 [ 156.609105][ T330] ? snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 156.609111][ T330] snmp6_seq_show_item64.constprop.0+0x341/0x500 [ 156.609119][ T330] ? sockstat6_seq_show+0x1d0/0x1d0 [ 156.609137][ T330] ? rcu_is_watching+0x12/0xb0 [ 156.609142][ T330] ? trace_kmalloc+0x26/0xd0 [ 156.609146][ T330] ? __kvmalloc_node_noprof+0x23f/0x570 [ 156.609152][ T330] snmp6_seq_show+0x68/0x190 [ 156.609155][ T330] seq_read_iter+0x3fa/0x1060 [ 156.609165][ T330] seq_read+0x2cc/0x4b0 [ 156.609169][ T330] ? seq_read_iter+0x1060/0x1060 [ 156.609173][ T330] ? __lock_acquire+0x449/0x7e0 [ 156.609180][ T330] ? __mutex_trylock_common+0xf9/0x260 [ 156.609184][ T330] ? rcu_is_watching+0x12/0xb0 [ 156.609189][ T330] proc_reg_read+0x1aa/0x270 [ 156.609196][ T330] vfs_read+0x17e/0xda0 [ 156.609201][ T330] ? fdget_pos+0x230/0x2f0 [ 156.609206][ T330] ? ww_mutex_lock+0x160/0x160 [ 156.609212][ T330] ? kernel_read+0x1f0/0x1f0 [ 156.609215][ T330] ? __lock_release+0x5d/0x170 [ 156.609220][ T330] ? __fget_files+0x199/0x300 [ 156.609223][ T330] ? __fget_files+0x1a3/0x300 [ 156.609230][ T330] ksys_read+0xf7/0x1d0 [ 156.609234][ T330] ? vfs_write+0x12c0/0x12c0 [ 156.609240][ T330] do_syscall_64+0xc1/0x370 [ 156.609244][ T330] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 156.609248][ T330] RIP: 0033:0x7f5190d4a2cc [ 156.609252][ T330] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 29 8b f8 ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 7f 8b f8 ff 48 [ 156.609255][ T330] RSP: 002b:00007f518bffe090 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 156.609259][ T330] RAX: ffffffffffffffda RBX: 00007f5184000f30 RCX: 00007f5190d4a2cc [ 156.609261][ T330] RDX: 0000000000000400 RSI: 00007f5184001190 RDI: 000000000000000b [ 156.609263][ T330] RBP: 00007f5190e425c0 R08: 0000000000000000 R09: 0000000000000000 [ 156.609265][ T330] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 156.609267][ T330] R13: 0000000000000d68 R14: 00007f5190e419c0 R15: 0000000000000d68 [ 156.609273][ T330] [ 156.609274][ T330] [ 156.618257][ T330] The buggy address belongs to the variable: [ 156.618467][ T330] snmp6_ipstats_list+0x210/0x3e0 [ 156.618641][ T330] [ 156.618730][ T330] The buggy address belongs to the physical page: [ 156.618940][ T330] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1aad4 [ 156.619270][ T330] flags: 0x80000000002000(reserved|node=0|zone=1) [ 156.619495][ T330] raw: 0080000000002000 ffffea00006ab508 ffffea00006ab508 0000000000000000 [ 156.619800][ T330] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 156.620117][ T330] page dumped because: kasan: bad access detected [ 156.620342][ T330] [ 156.620431][ T330] Memory state around the buggy address: [ 156.620602][ T330] ffffffffad4d4680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 156.620858][ T330] ffffffffad4d4700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 156.621125][ T330] >ffffffffad4d4780: 00 00 f9 f9 f9 f9 f9 f9 00 00 00 00 00 01 f9 f9 [ 156.621382][ T330] ^ [ 156.621553][ T330] ffffffffad4d4800: f9 f9 f9 f9 00 00 04 f9 f9 f9 f9 f9 00 00 00 01 [ 156.621801][ T330] ffffffffad4d4880: f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9 00 00 06 f9 [ 156.622049][ T330] ================================================================== [ 156.622359][ T330] Disabling lock debugging due to kernel taint [ 156.680457][ C1] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK [ 157.697539][ C1] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK [ 157.698489][ C1] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK [ 158.720021][ C1] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK [ 158.721416][ C1] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK [ 159.744024][ C1] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK [ 159.745357][ C1] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK [ 160.768044][ C1] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK [ 160.769339][ C1] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK [ 161.792028][ C1] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK [ 161.793371][ C1] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK [ 162.816021][ C1] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK