Warning: Permanently added '10.128.0.17' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 70.820801][ T4250] ================================================================== [ 70.828922][ T4250] BUG: KASAN: use-after-free in unix_stream_read_actor+0x9e/0xa0 [ 70.836675][ T4250] Read of size 4 at addr ffff888078cd9184 by task syz-executor293/4250 [ 70.844907][ T4250] [ 70.847224][ T4250] CPU: 0 PID: 4250 Comm: syz-executor293 Not tainted 6.1.62-syzkaller #0 [ 70.855632][ T4250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 70.865683][ T4250] Call Trace: [ 70.868956][ T4250] [ 70.871891][ T4250] dump_stack_lvl+0x1e3/0x2cb [ 70.876586][ T4250] ? nf_tcp_handle_invalid+0x642/0x642 [ 70.882069][ T4250] ? panic+0x75d/0x75d [ 70.886144][ T4250] ? _printk+0xd1/0x111 [ 70.890306][ T4250] ? _raw_spin_lock_irqsave+0xac/0x120 [ 70.895765][ T4250] print_report+0x15f/0x4f0 [ 70.900275][ T4250] ? __virt_addr_valid+0x22b/0x2e0 [ 70.905392][ T4250] ? __phys_addr+0xb6/0x170 [ 70.909899][ T4250] ? unix_stream_read_actor+0x9e/0xa0 [ 70.915275][ T4250] kasan_report+0x136/0x160 [ 70.919784][ T4250] ? unix_stream_read_actor+0x9e/0xa0 [ 70.925172][ T4250] unix_stream_read_actor+0x9e/0xa0 [ 70.930474][ T4250] unix_stream_recv_urg+0x1bb/0x300 [ 70.935690][ T4250] unix_stream_read_generic+0x2104/0x21e0 [ 70.941425][ T4250] ? reacquire_held_locks+0x660/0x660 [ 70.946809][ T4250] ? aa_label_sk_perm+0x4f7/0x6e0 [ 70.951855][ T4250] ? aa_sk_perm+0xa60/0xa60 [ 70.956372][ T4250] ? unix_stream_read_actor+0xa0/0xa0 [ 70.961754][ T4250] ? aa_sk_perm+0x92d/0xa60 [ 70.966284][ T4250] unix_stream_recvmsg+0x222/0x2b0 [ 70.971403][ T4250] ? unix_stream_sendmsg+0x1070/0x1070 [ 70.976866][ T4250] ? iovec_from_user+0x5d/0x380 [ 70.981723][ T4250] ? __unix_stream_recvmsg+0x210/0x210 [ 70.987229][ T4250] ? aa_sock_msg_perm+0x91/0x150 [ 70.992167][ T4250] ? bpf_lsm_socket_recvmsg+0x5/0x10 [ 70.997464][ T4250] ? security_socket_recvmsg+0x86/0xb0 [ 71.002943][ T4250] ? unix_stream_sendmsg+0x1070/0x1070 [ 71.008415][ T4250] ____sys_recvmsg+0x285/0x530 [ 71.013208][ T4250] ? __sys_recvmsg_sock+0x40/0x40 [ 71.018246][ T4250] __sys_recvmsg+0x2e9/0x3d0 [ 71.022835][ T4250] ? _raw_spin_unlock_irq+0x1f/0x40 [ 71.028032][ T4250] ? ____sys_recvmsg+0x530/0x530 [ 71.032968][ T4250] ? __set_current_blocked+0x2a5/0x2f0 [ 71.038457][ T4250] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 71.044445][ T4250] ? syscall_enter_from_user_mode+0x2e/0x220 [ 71.050437][ T4250] ? lockdep_hardirqs_on+0x94/0x130 [ 71.055641][ T4250] ? syscall_enter_from_user_mode+0x2e/0x220 [ 71.061626][ T4250] do_syscall_64+0x3d/0xb0 [ 71.066045][ T4250] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 71.071938][ T4250] RIP: 0033:0x7f4e215024e9 [ 71.076347][ T4250] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 71.095950][ T4250] RSP: 002b:00007f4e21481228 EFLAGS: 00000246 ORIG_RAX: 000000000000002f [ 71.104372][ T4250] RAX: ffffffffffffffda RBX: 0000000000000024 RCX: 00007f4e215024e9 [ 71.112351][ T4250] RDX: 0000000040010083 RSI: 0000000020000140 RDI: 0000000000000004 [ 71.120335][ T4250] RBP: 00007f4e2158c348 R08: 00007f4e214816c0 R09: 00007f4e214816c0 [ 71.128400][ T4250] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4e2158c340 [ 71.136384][ T4250] R13: 00007f4e2158c34c R14: 00007fff157e2d70 R15: 00007fff157e2e58 [ 71.144901][ T4250] [ 71.147930][ T4250] [ 71.150243][ T4250] Allocated by task 4249: [ 71.154555][ T4250] kasan_set_track+0x4b/0x70 [ 71.159151][ T4250] __kasan_slab_alloc+0x65/0x70 [ 71.164016][ T4250] slab_post_alloc_hook+0x52/0x3a0 [ 71.169137][ T4250] kmem_cache_alloc_node+0x136/0x310 [ 71.174432][ T4250] __alloc_skb+0xde/0x670 [ 71.178758][ T4250] alloc_skb_with_frags+0xa4/0x740 [ 71.183877][ T4250] sock_alloc_send_pskb+0x915/0xa50 [ 71.189084][ T4250] queue_oob+0x102/0x8e0 [ 71.193324][ T4250] unix_stream_sendmsg+0xe10/0x1070 [ 71.198530][ T4250] ____sys_sendmsg+0x59e/0x8f0 [ 71.203301][ T4250] __sys_sendmsg+0x2a9/0x390 [ 71.207892][ T4250] do_syscall_64+0x3d/0xb0 [ 71.212307][ T4250] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 71.218198][ T4250] [ 71.220510][ T4250] Freed by task 4249: [ 71.224564][ T4250] kasan_set_track+0x4b/0x70 [ 71.229154][ T4250] kasan_save_free_info+0x27/0x40 [ 71.234170][ T4250] ____kasan_slab_free+0xd6/0x120 [ 71.239208][ T4250] kmem_cache_free+0x292/0x510 [ 71.243964][ T4250] queue_oob+0x52c/0x8e0 [ 71.248200][ T4250] unix_stream_sendmsg+0xe10/0x1070 [ 71.253398][ T4250] ____sys_sendmsg+0x59e/0x8f0 [ 71.258157][ T4250] __sys_sendmsg+0x2a9/0x390 [ 71.262753][ T4250] do_syscall_64+0x3d/0xb0 [ 71.267186][ T4250] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 71.273082][ T4250] [ 71.275399][ T4250] The buggy address belongs to the object at ffff888078cd9140 [ 71.275399][ T4250] which belongs to the cache skbuff_head_cache of size 240 [ 71.289990][ T4250] The buggy address is located 68 bytes inside of [ 71.289990][ T4250] 240-byte region [ffff888078cd9140, ffff888078cd9230) [ 71.303167][ T4250] [ 71.305487][ T4250] The buggy address belongs to the physical page: [ 71.311886][ T4250] page:ffffea0001e33640 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x78cd9 [ 71.322028][ T4250] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) [ 71.329573][ T4250] raw: 00fff00000000200 0000000000000000 dead000000000122 ffff888141e54500 [ 71.338152][ T4250] raw: 0000000000000000 00000000000c000c 00000001ffffffff 0000000000000000 [ 71.346724][ T4250] page dumped because: kasan: bad access detected [ 71.353138][ T4250] page_owner tracks the page as allocated [ 71.358853][ T4250] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 4249, tgid 4247 (syz-executor293), ts 70820582570, free_ts 70763899994 [ 71.377421][ T4250] post_alloc_hook+0x18d/0x1b0 [ 71.382186][ T4250] get_page_from_freelist+0x31a1/0x3320 [ 71.387727][ T4250] __alloc_pages+0x28d/0x770 [ 71.392335][ T4250] alloc_slab_page+0x6a/0x150 [ 71.397012][ T4250] new_slab+0x84/0x2d0 [ 71.401093][ T4250] ___slab_alloc+0xc20/0x1270 [ 71.405770][ T4250] kmem_cache_alloc_node+0x1cf/0x310 [ 71.411056][ T4250] __alloc_skb+0xde/0x670 [ 71.415383][ T4250] alloc_skb_with_frags+0xa4/0x740 [ 71.420488][ T4250] sock_alloc_send_pskb+0x915/0xa50 [ 71.425681][ T4250] queue_oob+0x102/0x8e0 [ 71.429913][ T4250] unix_stream_sendmsg+0xe10/0x1070 [ 71.435116][ T4250] ____sys_sendmsg+0x59e/0x8f0 [ 71.439880][ T4250] __sys_sendmsg+0x2a9/0x390 [ 71.444487][ T4250] do_syscall_64+0x3d/0xb0 [ 71.448917][ T4250] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 71.454814][ T4250] page last free stack trace: [ 71.459475][ T4250] free_unref_page_prepare+0xf63/0x1120 [ 71.465067][ T4250] free_unref_page_list+0x663/0x900 [ 71.470299][ T4250] release_pages+0x2836/0x2b40 [ 71.475074][ T4250] tlb_flush_mmu+0xfc/0x210 [ 71.479605][ T4250] tlb_finish_mmu+0xce/0x1f0 [ 71.484187][ T4250] exit_mmap+0x3c3/0x9f0 [ 71.488434][ T4250] __mmput+0x115/0x3c0 [ 71.492516][ T4250] exit_mm+0x226/0x300 [ 71.496606][ T4250] do_exit+0x9f6/0x26a0 [ 71.500761][ T4250] do_group_exit+0x202/0x2b0 [ 71.505553][ T4250] get_signal+0x16f7/0x17d0 [ 71.510054][ T4250] arch_do_signal_or_restart+0xb0/0x1a10 [ 71.515692][ T4250] exit_to_user_mode_loop+0x6a/0x100 [ 71.520978][ T4250] exit_to_user_mode_prepare+0xb1/0x140 [ 71.526635][ T4250] syscall_exit_to_user_mode+0x60/0x270 [ 71.533486][ T4250] do_syscall_64+0x49/0xb0 [ 71.537900][ T4250] [ 71.540216][ T4250] Memory state around the buggy address: [ 71.545835][ T4250] ffff888078cd9080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc [ 71.553981][ T4250] ffff888078cd9100: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 71.562050][ T4250] >ffff888078cd9180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 71.570113][ T4250] ^ [ 71.574168][ T4250] ffff888078cd9200: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc [ 71.582219][ T4250] ffff888078cd9280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 71.590269][ T4250] ================================================================== [ 71.601378][ T4250] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 71.608623][ T4250] CPU: 1 PID: 4250 Comm: syz-executor293 Not tainted 6.1.62-syzkaller #0 [ 71.617036][ T4250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 71.627093][ T4250] Call Trace: [ 71.630371][ T4250] [ 71.633301][ T4250] dump_stack_lvl+0x1e3/0x2cb [ 71.637990][ T4250] ? nf_tcp_handle_invalid+0x642/0x642 [ 71.643469][ T4250] ? panic+0x75d/0x75d [ 71.647548][ T4250] ? preempt_schedule_common+0xa6/0xd0 [ 71.653023][ T4250] ? vscnprintf+0x59/0x80 [ 71.657354][ T4250] panic+0x318/0x75d [ 71.661288][ T4250] ? check_panic_on_warn+0x1d/0xa0 [ 71.666498][ T4250] ? memcpy_page_flushcache+0xfc/0xfc [ 71.671888][ T4250] ? _raw_spin_unlock_irqrestore+0x128/0x130 [ 71.677873][ T4250] ? _raw_spin_unlock+0x40/0x40 [ 71.682899][ T4250] ? print_report+0x4a3/0x4f0 [ 71.687592][ T4250] check_panic_on_warn+0x7e/0xa0 [ 71.692533][ T4250] ? unix_stream_read_actor+0x9e/0xa0 [ 71.697981][ T4250] end_report+0x66/0x110 [ 71.702324][ T4250] kasan_report+0x143/0x160 [ 71.706846][ T4250] ? unix_stream_read_actor+0x9e/0xa0 [ 71.712229][ T4250] unix_stream_read_actor+0x9e/0xa0 [ 71.717437][ T4250] unix_stream_recv_urg+0x1bb/0x300 [ 71.722657][ T4250] unix_stream_read_generic+0x2104/0x21e0 [ 71.728389][ T4250] ? reacquire_held_locks+0x660/0x660 [ 71.733772][ T4250] ? aa_label_sk_perm+0x4f7/0x6e0 [ 71.738825][ T4250] ? aa_sk_perm+0xa60/0xa60 [ 71.743393][ T4250] ? unix_stream_read_actor+0xa0/0xa0 [ 71.748786][ T4250] ? aa_sk_perm+0x92d/0xa60 [ 71.753318][ T4250] unix_stream_recvmsg+0x222/0x2b0 [ 71.758446][ T4250] ? unix_stream_sendmsg+0x1070/0x1070 [ 71.763915][ T4250] ? iovec_from_user+0x5d/0x380 [ 71.768770][ T4250] ? __unix_stream_recvmsg+0x210/0x210 [ 71.774415][ T4250] ? aa_sock_msg_perm+0x91/0x150 [ 71.779361][ T4250] ? bpf_lsm_socket_recvmsg+0x5/0x10 [ 71.784660][ T4250] ? security_socket_recvmsg+0x86/0xb0 [ 71.790164][ T4250] ? unix_stream_sendmsg+0x1070/0x1070 [ 71.795637][ T4250] ____sys_recvmsg+0x285/0x530 [ 71.800463][ T4250] ? __sys_recvmsg_sock+0x40/0x40 [ 71.805551][ T4250] __sys_recvmsg+0x2e9/0x3d0 [ 71.810253][ T4250] ? _raw_spin_unlock_irq+0x1f/0x40 [ 71.815467][ T4250] ? ____sys_recvmsg+0x530/0x530 [ 71.820440][ T4250] ? __set_current_blocked+0x2a5/0x2f0 [ 71.825927][ T4250] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 71.831929][ T4250] ? syscall_enter_from_user_mode+0x2e/0x220 [ 71.837925][ T4250] ? lockdep_hardirqs_on+0x94/0x130 [ 71.843143][ T4250] ? syscall_enter_from_user_mode+0x2e/0x220 [ 71.849139][ T4250] do_syscall_64+0x3d/0xb0 [ 71.853565][ T4250] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 71.859469][ T4250] RIP: 0033:0x7f4e215024e9 [ 71.863894][ T4250] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 71.883504][ T4250] RSP: 002b:00007f4e21481228 EFLAGS: 00000246 ORIG_RAX: 000000000000002f [ 71.891954][ T4250] RAX: ffffffffffffffda RBX: 0000000000000024 RCX: 00007f4e215024e9 [ 71.899947][ T4250] RDX: 0000000040010083 RSI: 0000000020000140 RDI: 0000000000000004 [ 71.907924][ T4250] RBP: 00007f4e2158c348 R08: 00007f4e214816c0 R09: 00007f4e214816c0 [ 71.915899][ T4250] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4e2158c340 [ 71.923874][ T4250] R13: 00007f4e2158c34c R14: 00007fff157e2d70 R15: 00007fff157e2e58 [ 71.931854][ T4250] [ 71.935125][ T4250] Kernel Offset: disabled [ 71.939452][ T4250] Rebooting in 86400 seconds..