Warning: Permanently added '10.128.1.13' (ED25519) to the list of known hosts. executing program syzkaller login: [ 37.737409][ T4298] FAULT_INJECTION: forcing a failure. [ 37.737409][ T4298] name failslab, interval 1, probability 0, space 0, times 1 [ 37.740363][ T4298] CPU: 0 PID: 4298 Comm: syz-executor334 Not tainted 6.1.115-syzkaller #0 [ 37.742235][ T4298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 37.744232][ T4298] Call trace: [ 37.744967][ T4298] dump_backtrace+0x1c8/0x1f4 [ 37.746032][ T4298] show_stack+0x2c/0x3c [ 37.746815][ T4298] dump_stack_lvl+0x108/0x170 [ 37.747903][ T4298] dump_stack+0x1c/0x58 [ 37.748771][ T4298] should_fail_ex+0x3c0/0x51c [ 37.749775][ T4298] __should_failslab+0xc8/0x128 [ 37.750851][ T4298] should_failslab+0x10/0x28 [ 37.751828][ T4298] __kmem_cache_alloc_node+0x80/0x388 [ 37.752963][ T4298] kmalloc_trace+0x48/0x94 [ 37.753966][ T4298] dccp_feat_entry_new+0x188/0x38c [ 37.755108][ T4298] dccp_feat_parse_options+0xd5c/0x2380 [ 37.756276][ T4298] dccp_parse_options+0xb54/0x192c [ 37.757396][ T4298] dccp_rcv_established+0x68/0x2d8 [ 37.758447][ T4298] dccp_v6_do_rcv+0x248/0x938 [ 37.759476][ T4298] __release_sock+0x1a8/0x408 [ 37.760377][ T4298] release_sock+0x68/0x1cc [ 37.761283][ T4298] dccp_sendmsg+0x46c/0xb80 [ 37.762304][ T4298] inet_sendmsg+0x15c/0x290 [ 37.763254][ T4298] ____sys_sendmsg+0x55c/0x848 [ 37.764195][ T4298] __sys_sendmmsg+0x318/0x7d8 [ 37.765214][ T4298] __arm64_sys_sendmmsg+0xa0/0xbc [ 37.766328][ T4298] invoke_syscall+0x98/0x2c0 [ 37.767395][ T4298] el0_svc_common+0x138/0x258 [ 37.768414][ T4298] do_el0_svc+0x64/0x218 [ 37.769312][ T4298] el0_svc+0x58/0x168 [ 37.770104][ T4298] el0t_64_sync_handler+0x84/0xf0 [ 37.771243][ T4298] el0t_64_sync+0x18c/0x190 [ 37.773410][ T4298] dccp_parse_options: DCCP(0000000094b7b6a3): Option 32 (len=7) error=9 [ 37.775690][ T4298] ================================================================== [ 37.777365][ T4298] BUG: KASAN: use-after-free in ccid2_hc_tx_packet_recv+0x1498/0x1af0 [ 37.778989][ T4298] Read of size 1 at addr ffff0000c4bf8494 by task syz-executor334/4298 [ 37.780787][ T4298] [ 37.781309][ T4298] CPU: 0 PID: 4298 Comm: syz-executor334 Not tainted 6.1.115-syzkaller #0 [ 37.783105][ T4298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 37.785292][ T4298] Call trace: [ 37.785993][ T4298] dump_backtrace+0x1c8/0x1f4 [ 37.786924][ T4298] show_stack+0x2c/0x3c [ 37.787821][ T4298] dump_stack_lvl+0x108/0x170 [ 37.788822][ T4298] print_report+0x174/0x4c0 [ 37.789817][ T4298] kasan_report+0xd4/0x130 [ 37.790747][ T4298] __asan_report_load1_noabort+0x2c/0x38 [ 37.791974][ T4298] ccid2_hc_tx_packet_recv+0x1498/0x1af0 [ 37.793117][ T4298] dccp_rcv_established+0x26c/0x2d8 [ 37.794227][ T4298] dccp_v6_do_rcv+0x248/0x938 [ 37.795212][ T4298] __release_sock+0x1a8/0x408 [ 37.796186][ T4298] release_sock+0x68/0x1cc [ 37.797148][ T4298] dccp_sendmsg+0x46c/0xb80 [ 37.798215][ T4298] inet_sendmsg+0x15c/0x290 [ 37.799220][ T4298] ____sys_sendmsg+0x55c/0x848 [ 37.800147][ T4298] __sys_sendmmsg+0x318/0x7d8 [ 37.801144][ T4298] __arm64_sys_sendmmsg+0xa0/0xbc [ 37.802276][ T4298] invoke_syscall+0x98/0x2c0 [ 37.803262][ T4298] el0_svc_common+0x138/0x258 [ 37.804285][ T4298] do_el0_svc+0x64/0x218 [ 37.805169][ T4298] el0_svc+0x58/0x168 [ 37.806023][ T4298] el0t_64_sync_handler+0x84/0xf0 [ 37.807148][ T4298] el0t_64_sync+0x18c/0x190 [ 37.808141][ T4298] [ 37.808629][ T4298] Allocated by task 4298: [ 37.809503][ T4298] kasan_set_track+0x4c/0x80 [ 37.810460][ T4298] kasan_save_alloc_info+0x24/0x30 [ 37.811531][ T4298] __kasan_kmalloc+0xac/0xc4 [ 37.812513][ T4298] __kmalloc_node_track_caller+0xd0/0x1c0 [ 37.813729][ T4298] __alloc_skb+0x180/0x580 [ 37.814696][ T4298] dccp_send_ack+0xa4/0x2bc [ 37.815646][ T4298] ccid2_hc_rx_packet_recv+0x114/0x1b8 [ 37.816770][ T4298] dccp_rcv_established+0x1ac/0x2d8 [ 37.817823][ T4298] dccp_v6_do_rcv+0x248/0x938 [ 37.818852][ T4298] __sk_receive_skb+0x3f8/0x900 [ 37.819829][ T4298] dccp_v6_rcv+0xbac/0x10b8 [ 37.820786][ T4298] ip6_protocol_deliver_rcu+0x958/0x1214 [ 37.822012][ T4298] ip6_input_finish+0x164/0x298 [ 37.823188][ T4298] NF_HOOK+0x328/0x3d4 [ 37.823991][ T4298] ip6_input+0x70/0x84 [ 37.824894][ T4298] ip6_rcv_finish+0x1f4/0x220 [ 37.825890][ T4298] NF_HOOK+0x328/0x3d4 [ 37.826706][ T4298] ipv6_rcv+0x98/0xb8 [ 37.827515][ T4298] __netif_receive_skb+0x18c/0x400 [ 37.828484][ T4298] process_backlog+0x410/0x784 [ 37.829584][ T4298] __napi_poll+0xb4/0x3f0 [ 37.830476][ T4298] net_rx_action+0x5cc/0xd3c [ 37.831448][ T4298] handle_softirqs+0x318/0xd58 [ 37.832466][ T4298] __do_softirq+0x14/0x20 [ 37.833421][ T4298] [ 37.833905][ T4298] Freed by task 4298: [ 37.834681][ T4298] kasan_set_track+0x4c/0x80 [ 37.835707][ T4298] kasan_save_free_info+0x38/0x5c [ 37.836756][ T4298] ____kasan_slab_free+0x144/0x1c0 [ 37.837863][ T4298] __kasan_slab_free+0x18/0x28 [ 37.838843][ T4298] __kmem_cache_free+0x2c0/0x4b4 [ 37.839973][ T4298] kfree+0xcc/0x1b8 [ 37.840797][ T4298] skb_release_data+0x488/0x6b0 [ 37.841902][ T4298] kfree_skb_reason+0x1a4/0x47c [ 37.842837][ T4298] dccp_v6_do_rcv+0x12c/0x938 [ 37.843823][ T4298] __release_sock+0x1a8/0x408 [ 37.844819][ T4298] release_sock+0x68/0x1cc [ 37.845694][ T4298] dccp_sendmsg+0x46c/0xb80 [ 37.846626][ T4298] inet_sendmsg+0x15c/0x290 [ 37.847619][ T4298] ____sys_sendmsg+0x55c/0x848 [ 37.848679][ T4298] __sys_sendmmsg+0x318/0x7d8 [ 37.849701][ T4298] __arm64_sys_sendmmsg+0xa0/0xbc [ 37.850779][ T4298] invoke_syscall+0x98/0x2c0 [ 37.851818][ T4298] el0_svc_common+0x138/0x258 [ 37.852822][ T4298] do_el0_svc+0x64/0x218 [ 37.853658][ T4298] el0_svc+0x58/0x168 [ 37.854573][ T4298] el0t_64_sync_handler+0x84/0xf0 [ 37.855625][ T4298] el0t_64_sync+0x18c/0x190 [ 37.856557][ T4298] [ 37.857078][ T4298] The buggy address belongs to the object at ffff0000c4bf8000 [ 37.857078][ T4298] which belongs to the cache kmalloc-2k of size 2048 [ 37.860032][ T4298] The buggy address is located 1172 bytes inside of [ 37.860032][ T4298] 2048-byte region [ffff0000c4bf8000, ffff0000c4bf8800) [ 37.863033][ T4298] [ 37.863567][ T4298] The buggy address belongs to the physical page: [ 37.864827][ T4298] page:00000000d985b5f7 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104bf8 [ 37.866963][ T4298] head:00000000d985b5f7 order:3 compound_mapcount:0 compound_pincount:0 [ 37.868765][ T4298] flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) [ 37.870582][ T4298] raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002900 [ 37.872251][ T4298] raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000 [ 37.874065][ T4298] page dumped because: kasan: bad access detected [ 37.875412][ T4298] [ 37.875905][ T4298] Memory state around the buggy address: [ 37.877156][ T4298] ffff0000c4bf8380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 37.878717][ T4298] ffff0000c4bf8400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 37.880445][ T4298] >ffff0000c4bf8480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 37.882297][ T4298] ^ [ 37.883295][ T4298] ffff0000c4bf8500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 37.884946][ T4298] ffff0000c4bf8580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 37.886678][ T4298] ================================================================== [ 37.888690][ T4298] Disabling lock debugging due to kernel taint executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program