syzkaller login: [ 264.601703][ T1859] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 264.639596][ T1859] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 264.673490][ T1859] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 264.703868][ T1859] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 271.883725][ T1859] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:28969' (ECDSA) to the list of known hosts. 1970/01/01 00:05:41 fuzzer started 1970/01/01 00:05:55 dialing manager at localhost:43965 [ 361.557257][ T2026] cgroup: Unknown subsys name 'net' [ 362.441671][ T2026] cgroup: Unknown subsys name 'rlimit' 1970/01/01 00:06:02 syscalls: 2918 1970/01/01 00:06:02 code coverage: enabled 1970/01/01 00:06:02 comparison tracing: enabled 1970/01/01 00:06:02 extra coverage: enabled 1970/01/01 00:06:02 delay kcov mmap: mmap returned an invalid pointer 1970/01/01 00:06:02 setuid sandbox: enabled 1970/01/01 00:06:02 namespace sandbox: enabled 1970/01/01 00:06:02 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:06:02 fault injection: enabled 1970/01/01 00:06:02 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:06:02 net packet injection: enabled 1970/01/01 00:06:02 net device setup: enabled 1970/01/01 00:06:02 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:06:02 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:06:02 NIC VF setup: PCI device 0000:00:11.0 is not available 1970/01/01 00:06:02 USB emulation: enabled 1970/01/01 00:06:02 hci packet injection: /dev/vhci does not exist 1970/01/01 00:06:02 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:06:02 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist 1970/01/01 00:06:02 fetching corpus: 0, signal 0/2000 (executing program) 1970/01/01 00:06:08 fetching corpus: 50, signal 30604/34000 (executing program) 1970/01/01 00:06:11 fetching corpus: 100, signal 41401/46203 (executing program) 1970/01/01 00:06:13 fetching corpus: 150, signal 49855/55918 (executing program) 1970/01/01 00:06:16 fetching corpus: 200, signal 56248/63539 (executing program) 1970/01/01 00:06:19 fetching corpus: 250, signal 63418/71723 (executing program) 1970/01/01 00:06:22 fetching corpus: 300, signal 70846/80046 (executing program) 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program) 1970/01/01 00:08:09 fetching corpus: 2140, signal 147763/172324 (executing program) 1970/01/01 00:08:12 fetching corpus: 2190, signal 149124/173645 (executing program) 1970/01/01 00:08:14 fetching corpus: 2240, signal 150558/174956 (executing program) 1970/01/01 00:08:16 fetching corpus: 2290, signal 151608/176003 (executing program) 1970/01/01 00:08:19 fetching corpus: 2340, signal 153113/177312 (executing program) 1970/01/01 00:08:22 fetching corpus: 2389, signal 154311/178446 (executing program) 1970/01/01 00:08:25 fetching corpus: 2439, signal 155213/179338 (executing program) 1970/01/01 00:08:27 fetching corpus: 2489, signal 155770/180151 (executing program) 1970/01/01 00:08:30 fetching corpus: 2539, signal 157010/181252 (executing program) 1970/01/01 00:08:32 fetching corpus: 2589, signal 157961/182159 (executing program) 1970/01/01 00:08:36 fetching corpus: 2639, signal 158823/182979 (executing program) 1970/01/01 00:08:40 fetching corpus: 2689, signal 160426/184160 (executing program) 1970/01/01 00:08:42 fetching corpus: 2739, signal 161278/184995 (executing program) 1970/01/01 00:08:45 fetching corpus: 2789, signal 162310/185865 (executing program) 1970/01/01 00:08:47 fetching corpus: 2839, signal 163199/186673 (executing program) 1970/01/01 00:08:49 fetching corpus: 2889, signal 164262/187474 (executing program) 1970/01/01 00:08:52 fetching corpus: 2938, signal 166479/188763 (executing program) 1970/01/01 00:08:55 fetching corpus: 2988, signal 167413/189510 (executing program) 1970/01/01 00:08:58 fetching corpus: 3038, signal 168485/190292 (executing program) 1970/01/01 00:09:00 fetching corpus: 3088, signal 169323/190980 (executing program) 1970/01/01 00:09:02 fetching corpus: 3138, signal 170097/191594 (executing program) 1970/01/01 00:09:04 fetching corpus: 3188, signal 170821/192195 (executing program) 1970/01/01 00:09:08 fetching corpus: 3238, signal 171931/192900 (executing program) 1970/01/01 00:09:11 fetching corpus: 3288, signal 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fetching corpus: 5083, signal 199245/204841 (executing program) 1970/01/01 00:10:46 fetching corpus: 5133, signal 199663/204841 (executing program) 1970/01/01 00:10:50 fetching corpus: 5183, signal 200600/204852 (executing program) 1970/01/01 00:10:53 fetching corpus: 5233, signal 201288/204852 (executing program) 1970/01/01 00:10:56 fetching corpus: 5283, signal 201868/204852 (executing program) 1970/01/01 00:10:56 fetching corpus: 5285, signal 201882/204854 (executing program) 1970/01/01 00:10:56 fetching corpus: 5285, signal 201882/204854 (executing program) 1970/01/01 00:12:43 starting 2 fuzzer processes 00:12:43 executing program 0: r0 = socket$nl_rdma(0x10, 0x3, 0x14) getsockopt$sock_int(r0, 0x1, 0x3, 0x0, &(0x7f0000000040)) 00:12:44 executing program 1: r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0) fallocate(r0, 0x0, 0x0, 0x7920000) [ 790.394883][ T2048] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 790.483594][ T2048] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 792.996500][ T2046] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 793.091688][ T2046] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 801.219875][ C0] ================================================================== [ 801.223157][ C0] BUG: KASAN: stack-out-of-bounds in walk_stackframe+0x11c/0x260 [ 801.224787][ C0] Read of size 8 at addr ffffaf8007357e20 by task syz-executor.1/2048 [ 801.227520][ C0] [ 801.229052][ C0] CPU: 0 PID: 2048 Comm: syz-executor.1 Not tainted 5.17.0-rc1-syzkaller-00002-g0966d385830d #0 [ 801.230429][ C0] Hardware name: riscv-virtio,qemu (DT) [ 801.231441][ C0] Call Trace: [ 801.232260][ C0] [] dump_backtrace+0x2e/0x3c [ 801.233379][ C0] [] show_stack+0x34/0x40 [ 801.234369][ C0] [] dump_stack_lvl+0xe4/0x150 [ 801.236380][ C0] [] print_address_description.constprop.0+0x2a/0x330 [ 801.238402][ C0] [] kasan_report+0x184/0x1e0 [ 801.239707][ C0] [] __asan_load8+0x6e/0x96 [ 801.240886][ C0] [] walk_stackframe+0x11c/0x260 [ 801.241997][ C0] [] arch_stack_walk+0x2c/0x3c [ 801.243101][ C0] [] stack_trace_save+0xa6/0xd8 [ 801.244190][ C0] [] kasan_save_stack+0x2c/0x58 [ 801.245831][ C0] [ 801.246590][ C0] The buggy address belongs to the page: [ 801.247816][ C0] page:ffffaf807a850078 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x87557 [ 801.249243][ C0] flags: 0x8000000000(section=16|node=0|zone=0) [ 801.251449][ C0] raw: 0000008000000000 ffffaf807a850080 ffffaf807a850080 0000000000000000 [ 801.252563][ C0] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 801.253507][ C0] raw: 00000000000007ff [ 801.254233][ C0] page dumped because: kasan: bad access detected [ 801.255274][ C0] page_owner tracks the page as allocated [ 801.256429][ C0] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x400dc0(GFP_KERNEL_ACCOUNT|__GFP_ZERO), pid 2021, ts 765233670500, free_ts 686981864100 [ 801.258492][ C0] __set_page_owner+0x48/0x136 [ 801.259681][ C0] post_alloc_hook+0xd0/0x10a [ 801.260736][ C0] get_page_from_freelist+0x8da/0x12d8 [ 801.261849][ C0] __alloc_pages+0x150/0x3b6 [ 801.262910][ C0] copy_process+0x482/0x3c34 [ 801.264038][ C0] kernel_clone+0xee/0x920 [ 801.265390][ C0] __do_sys_clone+0xf2/0x12e [ 801.267040][ C0] sys_clone+0x32/0x44 [ 801.268171][ C0] ret_from_syscall+0x0/0x2 [ 801.269293][ C0] page last free stack trace: [ 801.270130][ C0] __reset_page_owner+0x4a/0xea [ 801.271307][ C0] free_pcp_prepare+0x29c/0x45e [ 801.272328][ C0] free_unref_page+0x6a/0x31e [ 801.273287][ C0] __free_pages+0xe2/0x112 [ 801.274179][ C0] put_task_stack+0x1d0/0x2b0 [ 801.275435][ C0] finish_task_switch.isra.0+0x3ce/0x420 [ 801.276823][ C0] __schedule+0x58e/0x118e [ 801.277801][ C0] preempt_schedule_irq+0x4a/0x13e [ 801.278919][ C0] resume_kernel+0x16/0x18 [ 801.280123][ C0] [ 801.280832][ C0] Memory state around the buggy address: [ 801.282018][ C0] ffffaf8007357d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 801.283280][ C0] ffffaf8007357d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 801.284344][ C0] >ffffaf8007357e00: 00 00 00 00 f3 f3 f3 f3 00 00 00 00 00 00 00 00 [ 801.286213][ C0] ^ [ 801.287864][ C0] ffffaf8007357e80: f1 f1 f1 f1 00 00 00 f3 f3 f3 f3 f3 00 00 00 00 [ 801.289091][ C0] ffffaf8007357f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 801.290275][ C0] ================================================================== [ 801.291387][ C0] Disabling lock debugging due to kernel taint [ 801.297168][ T2048] Kernel panic - not syncing: corrupted stack end detected inside scheduler [ 801.298484][ T2048] CPU: 0 PID: 2048 Comm: syz-executor.1 Tainted: G B 5.17.0-rc1-syzkaller-00002-g0966d385830d #0 [ 801.299818][ T2048] Hardware name: riscv-virtio,qemu (DT) [ 801.300566][ T2048] Call Trace: [ 801.301037][ T2048] [] dump_backtrace+0x2e/0x3c [ 801.302041][ T2048] [] show_stack+0x34/0x40 [ 801.303044][ T2048] [] dump_stack_lvl+0xe4/0x150 [ 801.304114][ T2048] [] dump_stack+0x1c/0x24 [ 801.305411][ T2048] [] panic+0x24a/0x634 [ 801.306696][ T2048] [] schedule+0x0/0x14c [ 801.307681][ T2048] [] preempt_schedule_notrace+0x9c/0x19a [ 801.308744][ T2048] [] trace_lock_acquire+0xd6/0x1fc [ 801.309724][ T2048] [] lock_acquire+0x28/0x6a [ 801.310664][ T2048] [] fs_reclaim_acquire+0xb4/0xda [ 801.311647][ T2048] [] prepare_alloc_pages+0xe0/0x256 [ 801.312674][ T2048] [] __alloc_pages+0x100/0x3b6 [ 801.313659][ T2048] [] alloc_pages+0x132/0x2a6 [ 801.314663][ T2048] [] alloc_slab_page.constprop.0+0xc2/0xfa [ 801.316292][ T2048] [] new_slab+0x76/0x2cc [ 801.317256][ T2048] [] ___slab_alloc+0x56e/0x918 [ 801.318310][ T2048] [] __slab_alloc.constprop.0+0x50/0x8c [ 801.319441][ T2048] [] kmem_cache_alloc+0x39c/0x3de [ 801.320537][ T2048] [] __kernfs_new_node+0xfc/0x5f2 [ 801.321549][ T2048] [] kernfs_new_node+0x66/0xbe [ 801.322552][ T2048] [] __kernfs_create_file+0x4e/0x1e8 [ 801.323567][ T2048] [] sysfs_add_file_mode_ns+0x138/0x254 [ 801.324554][ T2048] [] internal_create_group+0x274/0x722 [ 801.326210][ T2048] [] internal_create_groups.part.0+0x64/0xe8 [ 801.327222][ T2048] [] sysfs_create_groups+0x2c/0x48 [ 801.328172][ T2048] [] device_add+0xee4/0x129e [ 801.329203][ T2048] [] netdev_register_kobject+0xcc/0x208 [ 801.330322][ T2048] [] register_netdevice+0x8ee/0xc6a [ 801.331285][ T2048] [] veth_newlink+0x454/0x7dc [ 801.332174][ T2048] [] __rtnl_newlink+0xc16/0xfa0 [ 801.333055][ T2048] [] rtnl_newlink+0x60/0x8c [ 801.333894][ T2048] [] rtnetlink_rcv_msg+0x338/0x9a0 [ 801.334783][ T2048] [] netlink_rcv_skb+0xf8/0x2be [ 801.335956][ T2048] [] rtnetlink_rcv+0x26/0x30 [ 801.336831][ T2048] [] netlink_unicast+0x40e/0x5fe [ 801.337657][ T2048] [] netlink_sendmsg+0x4e0/0x994 [ 801.338534][ T2048] [] sock_sendmsg+0xa0/0xc4 [ 801.339491][ T2048] [] __sys_sendto+0x1f2/0x2e0 [ 801.340383][ T2048] [] sys_sendto+0x3e/0x52 [ 801.341279][ T2048] [] ret_from_syscall+0x0/0x2 [ 801.342469][ T2048] SMP: stopping secondary CPUs [ 801.344476][ T2048] Rebooting in 86400 seconds.. VM DIAGNOSIS: 11:20:40 Registers: info registers vcpu 0 pc ffffffff80475986 mhartid 0000000000000000 mstatus 00000000000000a0 mip 00000000000000a0 mie 000000000000022a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff800055d4 mepc ffffffff80c38312 sepc ffffffff80173ff0 mcause 8000000000000007 scause 8000000000000005 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff80dc3394 x2/sp ffffaf80073577f0 x3/gp ffffffff85863ac0 x4/tp ffffaf8007590000 x5/t0 ffffffff86bcb657 x6/t1 d8faf9af9475c600 x7/t2 0000000000000000 x8/s0 ffffaf8007357820 x9/s1 ffffffff86e58900 x10/a0 ffffaf8007590020 x11/a1 ffff8f800066c000 x12/a2 1ffffffff0dcb129 x13/a3 ffffffff80dc337e x14/a4 0000000000000000 x15/a5 ffffffff86e58948 x16/a6 ffffffff86e589f1 x17/a7 ffffffff80dcc9fe x18/s2 ffffaf8007590000 x19/s3 000000000000002f x20/s4 ffffffff86e58900 x21/s5 ffffffff80dc333e x22/s6 0000000000000000 x23/s7 ffffffff86bcb69b x24/s8 0000000000000010 x25/s9 ffffffff86e58958 x26/s10 0000000000000010 x27/s11 0000000000000000 x28/t3 fffffffff3f3f300 x29/t4 ffffffff80112282 x30/t5 1ffff5f000e6aeac x31/t6 ffffffff86bcb657 f0/ft0 0000000000000000 f1/ft1 0000000000000000 f2/ft2 0000000000000000 f3/ft3 0000000000000000 f4/ft4 0000000000000000 f5/ft5 0000000000000000 f6/ft6 0000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000 info registers vcpu 1 pc ffffffff80115baa mhartid 0000000000000001 mstatus 00000000000000a0 mip 00000000000000a0 mie 000000000000020a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffff800055d4 mepc ffffffff80475af4 sepc 00007fffa672fdb8 mcause 8000000000000007 scause 8000000000000005 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffff80115b96 x2/sp ffffaf800cc2bc00 x3/gp ffffffff85863ac0 x4/tp ffffaf800eb01840 x5/t0 0000000000046000 x6/t1 d8faf9af9475c600 x7/t2 00007fffc4b02628 x8/s0 ffffaf800cc2bd20 x9/s1 ffffffff8343c840 x10/a0 ffffaf805a9e4840 x11/a1 0000000000000003 x12/a2 1ffff5f00b53c908 x13/a3 ffffffff80115b96 x14/a4 0000000000000000 x15/a5 0000000000000020 x16/a6 0000000000f00000 x17/a7 ffffffff80b09d26 x18/s2 ffffaf805a9e4840 x19/s3 ffffaf800eb01840 x20/s4 ffffaf800eb02258 x21/s5 ffffffffffffffff x22/s6 ffffffff86c1a620 x23/s7 0000000000000001 x24/s8 ffffffff85889780 x25/s9 1ffff5f001985784 x26/s10 0000000000000000 x27/s11 ffffaf800eb02840 x28/t3 fffffffff3f3f300 x29/t4 ffffffff80112282 x30/t5 1ffff5f001985700 x31/t6 0000000000000001 f0/ft0 0000000000000000 f1/ft1 0000000000000000 f2/ft2 0000000000000000 f3/ft3 0000000000000000 f4/ft4 0000000000000000 f5/ft5 0000000000000000 f6/ft6 0000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000