last executing test programs: 192.523459ms ago: executing program 4 (id=95): socket$rds(0x15, 0x5, 0x0) 191.788238ms ago: executing program 0 (id=96): socket$l2tp(0x2, 0x2, 0x73) 188.929709ms ago: executing program 4 (id=99): socket$alg(0x26, 0x5, 0x0) 177.609739ms ago: executing program 0 (id=100): pselect6(0x0, &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000)) 177.29087ms ago: executing program 2 (id=101): socket$inet6(0xa, 0x1, 0x0) 167.317144ms ago: executing program 1 (id=102): listen(0xffffffffffffffff, 0x0) 121.812523ms ago: executing program 4 (id=104): socket$inet_icmp_raw(0x2, 0x3, 0x1) 121.516731ms ago: executing program 0 (id=105): socket$nl_route(0x10, 0x3, 0x0) 120.959582ms ago: executing program 2 (id=106): getpid() 120.88461ms ago: executing program 1 (id=107): syz_init_net_socket$nfc_raw(0x27, 0x3, 0x0) 120.457695ms ago: executing program 3 (id=108): epoll_create(0x0) 120.342074ms ago: executing program 2 (id=109): socket$caif_stream(0x25, 0x1, 0x0) 120.293637ms ago: executing program 4 (id=110): socket$can_bcm(0x1d, 0x2, 0x2) 74.640861ms ago: executing program 1 (id=111): socket$inet6_mptcp(0xa, 0x1, 0x106) 74.423277ms ago: executing program 3 (id=112): socket$nl_audit(0x10, 0x3, 0x9) 73.463881ms ago: executing program 0 (id=113): clock_gettime(0x0, &(0x7f0000000000)) 73.403721ms ago: executing program 3 (id=114): socket$qrtr(0x2a, 0x2, 0x0) 73.171732ms ago: executing program 3 (id=115): socket$phonet_pipe(0x23, 0x5, 0x2) 73.111447ms ago: executing program 2 (id=116): socket$pptp(0x18, 0x1, 0x2) 72.735159ms ago: executing program 1 (id=117): syz_init_net_socket$netrom(0x6, 0x5, 0x0) 72.261532ms ago: executing program 0 (id=118): ppoll(&(0x7f0000000000), 0x0, &(0x7f0000000000), &(0x7f0000000000), 0x0) 8.471792ms ago: executing program 4 (id=119): socket$can_j1939(0x1d, 0x2, 0x7) 7.948058ms ago: executing program 1 (id=120): socket$inet(0x2, 0x1, 0x0) 7.753644ms ago: executing program 2 (id=121): socket$can_raw(0x1d, 0x3, 0x1) 7.66777ms ago: executing program 0 (id=122): socket$inet_udplite(0x2, 0x2, 0x88) 7.609113ms ago: executing program 3 (id=123): socket$inet6_tcp(0xa, 0x1, 0x0) 7.566115ms ago: executing program 4 (id=124): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/class/mac80211_hwsim/', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/sys/class/mac80211_hwsim/', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/class/mac80211_hwsim/', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/sys/class/mac80211_hwsim/', 0x800, 0x0) 5.860811ms ago: executing program 1 (id=125): socket$inet_dccp(0x2, 0x6, 0x0) 5.751135ms ago: executing program 2 (id=126): pipe(&(0x7f0000000000)) 0s ago: executing program 3 (id=127): getgid() kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.1.45' (ED25519) to the list of known hosts. [ 53.850492][ T5813] cgroup: Unknown subsys name 'net' [ 53.996717][ T5813] cgroup: Unknown subsys name 'cpuset' [ 54.005379][ T5813] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 55.266864][ T5813] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 57.412664][ T5902] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 57.786309][ T5959] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 58.271487][ T5971] ================================================================== [ 58.279592][ T5971] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0 [ 58.287352][ T5971] Write of size 8 at addr ffff888011f52408 by task syz-executor/5971 [ 58.295432][ T5971] [ 58.297780][ T5971] CPU: 0 UID: 0 PID: 5971 Comm: syz-executor Not tainted 6.14.0-rc5-syzkaller-01199-ge016cf5f39e9 #0 [ 58.297806][ T5971] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 58.297820][ T5971] Call Trace: [ 58.297827][ T5971] [ 58.297834][ T5971] dump_stack_lvl+0x241/0x360 [ 58.297858][ T5971] ? __pfx_dump_stack_lvl+0x10/0x10 [ 58.297873][ T5971] ? __pfx__printk+0x10/0x10 [ 58.297887][ T5971] ? _printk+0xd5/0x120 [ 58.297900][ T5971] ? __virt_addr_valid+0x183/0x530 [ 58.297915][ T5971] ? __virt_addr_valid+0x183/0x530 [ 58.297929][ T5971] print_report+0x16e/0x5b0 [ 58.297946][ T5971] ? __virt_addr_valid+0x183/0x530 [ 58.297959][ T5971] ? __virt_addr_valid+0x183/0x530 [ 58.297973][ T5971] ? __virt_addr_valid+0x45f/0x530 [ 58.297987][ T5971] ? __phys_addr+0xba/0x170 [ 58.298001][ T5971] ? binder_add_device+0x5f/0xa0 [ 58.298019][ T5971] kasan_report+0x143/0x180 [ 58.298038][ T5971] ? binder_add_device+0x5f/0xa0 [ 58.298059][ T5971] binder_add_device+0x5f/0xa0 [ 58.298077][ T5971] binderfs_binder_device_create+0x878/0xab0 [ 58.298099][ T5971] binderfs_fill_super+0x96e/0xe70 [ 58.298119][ T5971] ? __pfx_binderfs_fill_super+0x10/0x10 [ 58.298146][ T5971] ? shrinker_register+0x160/0x230 [ 58.298168][ T5971] ? sget_fc+0x960/0xa50 [ 58.298184][ T5971] ? __pfx_set_anon_super_fc+0x10/0x10 [ 58.298204][ T5971] ? __pfx_binderfs_fill_super+0x10/0x10 [ 58.298222][ T5971] get_tree_nodev+0xb7/0x140 [ 58.298237][ T5971] vfs_get_tree+0x90/0x2b0 [ 58.298254][ T5971] do_new_mount+0x2be/0xb40 [ 58.298276][ T5971] ? __pfx_do_new_mount+0x10/0x10 [ 58.298299][ T5971] __se_sys_mount+0x2d6/0x3c0 [ 58.298317][ T5971] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 58.298338][ T5971] ? __pfx___se_sys_mount+0x10/0x10 [ 58.298358][ T5971] ? do_syscall_64+0x100/0x230 [ 58.298377][ T5971] ? __x64_sys_mount+0x20/0xc0 [ 58.298396][ T5971] do_syscall_64+0xf3/0x230 [ 58.298413][ T5971] ? clear_bhb_loop+0x35/0x90 [ 58.298434][ T5971] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.298458][ T5971] RIP: 0033:0x7fc8cbf8e90a [ 58.298476][ T5971] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 58.298489][ T5971] RSP: 002b:00007ffe456b6828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 58.298506][ T5971] RAX: ffffffffffffffda RBX: 00007fc8cc00e663 RCX: 00007fc8cbf8e90a [ 58.298518][ T5971] RDX: 00007fc8cc01dda7 RSI: 00007fc8cc00e663 RDI: 00007fc8cc01dda7 [ 58.298529][ T5971] RBP: 00007fc8cc00e8ac R08: 0000000000000000 R09: 00007ffe456b68d0 [ 58.298540][ T5971] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc8cbfeb1a8 [ 58.298550][ T5971] R13: 00007fc8cbfeb180 R14: 0000000000000009 R15: 0000000000000000 [ 58.298566][ T5971] [ 58.298576][ T5971] [ 58.571726][ T5971] Allocated by task 5830: [ 58.576046][ T5971] kasan_save_track+0x3f/0x80 [ 58.580717][ T5971] __kasan_kmalloc+0x98/0xb0 [ 58.585303][ T5971] __kmalloc_cache_noprof+0x243/0x390 [ 58.590685][ T5971] binderfs_binder_device_create+0x171/0xab0 [ 58.596760][ T5971] binderfs_fill_super+0x96e/0xe70 [ 58.601868][ T5971] get_tree_nodev+0xb7/0x140 [ 58.606448][ T5971] vfs_get_tree+0x90/0x2b0 [ 58.610856][ T5971] do_new_mount+0x2be/0xb40 [ 58.615352][ T5971] __se_sys_mount+0x2d6/0x3c0 [ 58.620106][ T5971] do_syscall_64+0xf3/0x230 [ 58.624600][ T5971] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.630483][ T5971] [ 58.632789][ T5971] Freed by task 5830: [ 58.636750][ T5971] kasan_save_track+0x3f/0x80 [ 58.641413][ T5971] kasan_save_free_info+0x40/0x50 [ 58.646429][ T5971] __kasan_slab_free+0x59/0x70 [ 58.651179][ T5971] kfree+0x196/0x430 [ 58.655063][ T5971] evict+0x4e8/0x9a0 [ 58.658943][ T5971] __dentry_kill+0x20d/0x630 [ 58.663519][ T5971] shrink_kill+0xa9/0x2c0 [ 58.667840][ T5971] shrink_dentry_list+0x2c0/0x5b0 [ 58.672882][ T5971] shrink_dcache_parent+0xcb/0x3b0 [ 58.678024][ T5971] do_one_tree+0x23/0xe0 [ 58.682264][ T5971] shrink_dcache_for_umount+0xb4/0x180 [ 58.687891][ T5971] generic_shutdown_super+0x6a/0x2d0 [ 58.693166][ T5971] kill_litter_super+0x76/0xb0 [ 58.697918][ T5971] binderfs_kill_super+0x44/0x90 [ 58.702844][ T5971] deactivate_locked_super+0xc4/0x130 [ 58.708222][ T5971] cleanup_mnt+0x41f/0x4b0 [ 58.712630][ T5971] task_work_run+0x24f/0x310 [ 58.717209][ T5971] do_exit+0xa2a/0x28e0 [ 58.721354][ T5971] do_group_exit+0x207/0x2c0 [ 58.725930][ T5971] get_signal+0x168c/0x1720 [ 58.730851][ T5971] arch_do_signal_or_restart+0x96/0x860 [ 58.736386][ T5971] syscall_exit_to_user_mode+0xce/0x340 [ 58.741919][ T5971] do_syscall_64+0x100/0x230 [ 58.746507][ T5971] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.752388][ T5971] [ 58.754730][ T5971] The buggy address belongs to the object at ffff888011f52400 [ 58.754730][ T5971] which belongs to the cache kmalloc-512 of size 512 [ 58.768768][ T5971] The buggy address is located 8 bytes inside of [ 58.768768][ T5971] freed 512-byte region [ffff888011f52400, ffff888011f52600) [ 58.782372][ T5971] [ 58.784685][ T5971] The buggy address belongs to the physical page: [ 58.791086][ T5971] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11f50 [ 58.799833][ T5971] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 58.808314][ T5971] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) [ 58.815839][ T5971] page_type: f5(slab) [ 58.819801][ T5971] raw: 00fff00000000040 ffff88801b041c80 dead000000000122 0000000000000000 [ 58.828367][ T5971] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 58.836936][ T5971] head: 00fff00000000040 ffff88801b041c80 dead000000000122 0000000000000000 [ 58.845592][ T5971] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 58.854243][ T5971] head: 00fff00000000002 ffffea000047d401 ffffffffffffffff 0000000000000000 [ 58.862896][ T5971] head: ffff888000000004 0000000000000000 00000000ffffffff 0000000000000000 [ 58.871576][ T5971] page dumped because: kasan: bad access detected [ 58.877981][ T5971] page_owner tracks the page as allocated [ 58.883681][ T5971] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5830, tgid 5830 (syz-executor), ts 57055050507, free_ts 57040139973 [ 58.905032][ T5971] post_alloc_hook+0x1f4/0x240 [ 58.909789][ T5971] get_page_from_freelist+0x365c/0x37a0 [ 58.915320][ T5971] __alloc_frozen_pages_noprof+0x292/0x710 [ 58.921110][ T5971] alloc_pages_mpol+0x311/0x660 [ 58.925950][ T5971] allocate_slab+0x8f/0x3a0 [ 58.930509][ T5971] ___slab_alloc+0xc27/0x14a0 [ 58.935259][ T5971] __slab_alloc+0x58/0xa0 [ 58.939594][ T5971] __kmalloc_cache_noprof+0x27b/0x390 [ 58.944961][ T5971] rxrpc_alloc_peer+0x7f/0x330 [ 58.949711][ T5971] rxrpc_service_prealloc_one+0x1d0/0xd60 [ 58.955414][ T5971] rxrpc_kernel_charge_accept+0xd2/0x100 [ 58.961033][ T5971] afs_charge_preallocation+0xba/0x2c0 [ 58.966481][ T5971] afs_open_socket+0x46a/0x600 [ 58.971232][ T5971] afs_net_init+0x7b9/0x9a0 [ 58.975723][ T5971] ops_init+0x349/0x5b0 [ 58.979860][ T5971] setup_net+0x287/0x9e0 [ 58.984091][ T5971] page last free pid 5204 tgid 5204 stack trace: [ 58.990420][ T5971] free_frozen_pages+0xe0d/0x10e0 [ 58.995456][ T5971] __put_partials+0x160/0x1c0 [ 59.000124][ T5971] put_cpu_partial+0x17c/0x250 [ 59.004902][ T5971] __slab_free+0x290/0x380 [ 59.009315][ T5971] qlist_free_all+0x9a/0x140 [ 59.013896][ T5971] kasan_quarantine_reduce+0x14f/0x170 [ 59.019475][ T5971] __kasan_slab_alloc+0x23/0x80 [ 59.024322][ T5971] kmem_cache_alloc_noprof+0x1d9/0x380 [ 59.029767][ T5971] getname_flags+0xb7/0x540 [ 59.034265][ T5971] do_sys_openat2+0xd2/0x1d0 [ 59.038845][ T5971] __x64_sys_openat+0x247/0x2a0 [ 59.043691][ T5971] do_syscall_64+0xf3/0x230 [ 59.048299][ T5971] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 59.054305][ T5971] [ 59.056613][ T5971] Memory state around the buggy address: [ 59.062224][ T5971] ffff888011f52300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 59.070276][ T5971] ffff888011f52380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 59.078324][ T5971] >ffff888011f52400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 59.086540][ T5971] ^ [ 59.090848][ T5971] ffff888011f52480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 59.098930][ T5971] ffff888011f52500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 59.106977][ T5971] ================================================================== [ 59.154186][ T5971] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 59.161431][ T5971] CPU: 0 UID: 0 PID: 5971 Comm: syz-executor Not tainted 6.14.0-rc5-syzkaller-01199-ge016cf5f39e9 #0 [ 59.172290][ T5971] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 59.182524][ T5971] Call Trace: [ 59.185819][ T5971] [ 59.188776][ T5971] dump_stack_lvl+0x241/0x360 [ 59.193476][ T5971] ? __pfx_dump_stack_lvl+0x10/0x10 [ 59.198699][ T5971] ? __pfx__printk+0x10/0x10 [ 59.203314][ T5971] ? preempt_schedule+0xe1/0xf0 [ 59.208180][ T5971] ? vscnprintf+0x5d/0x90 [ 59.212524][ T5971] panic+0x349/0x880 [ 59.216439][ T5971] ? check_panic_on_warn+0x21/0xb0 [ 59.221570][ T5971] ? __pfx_panic+0x10/0x10 [ 59.226026][ T5971] ? _raw_spin_unlock_irqrestore+0x130/0x140 [ 59.232281][ T5971] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 59.238603][ T5971] ? print_report+0x519/0x5b0 [ 59.243437][ T5971] check_panic_on_warn+0x86/0xb0 [ 59.248403][ T5971] ? binder_add_device+0x5f/0xa0 [ 59.253340][ T5971] end_report+0x77/0x160 [ 59.257578][ T5971] kasan_report+0x154/0x180 [ 59.262076][ T5971] ? binder_add_device+0x5f/0xa0 [ 59.267008][ T5971] binder_add_device+0x5f/0xa0 [ 59.271761][ T5971] binderfs_binder_device_create+0x878/0xab0 [ 59.277749][ T5971] binderfs_fill_super+0x96e/0xe70 [ 59.282869][ T5971] ? __pfx_binderfs_fill_super+0x10/0x10 [ 59.288508][ T5971] ? shrinker_register+0x160/0x230 [ 59.293619][ T5971] ? sget_fc+0x960/0xa50 [ 59.297945][ T5971] ? __pfx_set_anon_super_fc+0x10/0x10 [ 59.303427][ T5971] ? __pfx_binderfs_fill_super+0x10/0x10 [ 59.309057][ T5971] get_tree_nodev+0xb7/0x140 [ 59.313663][ T5971] vfs_get_tree+0x90/0x2b0 [ 59.318185][ T5971] do_new_mount+0x2be/0xb40 [ 59.322690][ T5971] ? __pfx_do_new_mount+0x10/0x10 [ 59.327709][ T5971] __se_sys_mount+0x2d6/0x3c0 [ 59.332485][ T5971] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 59.338506][ T5971] ? __pfx___se_sys_mount+0x10/0x10 [ 59.343737][ T5971] ? do_syscall_64+0x100/0x230 [ 59.348502][ T5971] ? __x64_sys_mount+0x20/0xc0 [ 59.353261][ T5971] do_syscall_64+0xf3/0x230 [ 59.357758][ T5971] ? clear_bhb_loop+0x35/0x90 [ 59.362517][ T5971] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 59.368685][ T5971] RIP: 0033:0x7fc8cbf8e90a [ 59.373357][ T5971] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 59.392956][ T5971] RSP: 002b:00007ffe456b6828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 59.401363][ T5971] RAX: ffffffffffffffda RBX: 00007fc8cc00e663 RCX: 00007fc8cbf8e90a [ 59.409409][ T5971] RDX: 00007fc8cc01dda7 RSI: 00007fc8cc00e663 RDI: 00007fc8cc01dda7 [ 59.417366][ T5971] RBP: 00007fc8cc00e8ac R08: 0000000000000000 R09: 00007ffe456b68d0 [ 59.425323][ T5971] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc8cbfeb1a8 [ 59.433365][ T5971] R13: 00007fc8cbfeb180 R14: 0000000000000009 R15: 0000000000000000 [ 59.441328][ T5971] [ 59.444576][ T5971] Kernel Offset: disabled [ 59.448974][ T5971] Rebooting in 86400 seconds..