KASAN: slab-use-after-free Write in binder_add_device

==================================================================
BUG: KASAN: slab-use-after-free in hlist_add_head include/linux/list.h:1026 [inline]
BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0 drivers/android/binder.c:6932
Write of size 8 at addr ffff888032572c08 by task syz-executor/5720

CPU: 1 UID: 0 PID: 5720 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0x16e/0x5b0 mm/kasan/report.c:521
 kasan_report+0x143/0x180 mm/kasan/report.c:634
 hlist_add_head include/linux/list.h:1026 [inline]
 binder_add_device+0x5f/0xa0 drivers/android/binder.c:6932
 binderfs_binder_device_create+0x7bf/0x9c0 drivers/android/binderfs.c:210
 binderfs_fill_super+0x944/0xd90 drivers/android/binderfs.c:729
 vfs_get_super fs/super.c:1280 [inline]
 get_tree_nodev+0xb7/0x140 fs/super.c:1299
 vfs_get_tree+0x90/0x290 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3560
 do_mount fs/namespace.c:3900 [inline]
 __do_sys_mount fs/namespace.c:4111 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f48a078e90a
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
RSP: 002b:00007ffd43fed538 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f48a080e663 RCX: 00007f48a078e90a
RDX: 00007f48a081dda7 RSI: 00007f48a080e663 RDI: 00007f48a081dda7
RBP: 00007f48a080e8ac R08: 0000000000000000 R09: 00000000000001ff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f48a07eb1a8
R13: 00007f48a07eb180 R14: 0000000000000009 R15: 0000000000000000
 </TASK>

Allocated by task 5713:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x7d/0x90 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __kmalloc_cache_noprof+0x23e/0x360 mm/slub.c:4325
 kmalloc_noprof include/linux/slab.h:901 [inline]
 kzalloc_noprof include/linux/slab.h:1037 [inline]
 binderfs_binder_device_create+0x16c/0x9c0 drivers/android/binderfs.c:147
 binderfs_fill_super+0x944/0xd90 drivers/android/binderfs.c:729
 vfs_get_super fs/super.c:1280 [inline]
 get_tree_nodev+0xb7/0x140 fs/super.c:1299
 vfs_get_tree+0x90/0x290 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3560
 do_mount fs/namespace.c:3900 [inline]
 __do_sys_mount fs/namespace.c:4111 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

Freed by task 5713:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x36/0x50 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2353 [inline]
 slab_free mm/slub.c:4609 [inline]
 kfree+0x181/0x430 mm/slub.c:4757
 evict+0x4e8/0x9a0 fs/inode.c:796
 __dentry_kill+0x200/0x610 fs/dcache.c:643
 shrink_kill+0xa9/0x2c0 fs/dcache.c:1088
 shrink_dentry_list+0x2c0/0x5b0 fs/dcache.c:1115
 shrink_dcache_parent+0xcb/0x3b0
 do_one_tree+0x23/0xe0 fs/dcache.c:1578
 shrink_dcache_for_umount+0xb4/0x180 fs/dcache.c:1595
 generic_shutdown_super+0x6a/0x2d0 fs/super.c:620
 kill_anon_super fs/super.c:1237 [inline]
 kill_litter_super+0x76/0xb0 fs/super.c:1247
 binderfs_kill_super+0x44/0x90 drivers/android/binderfs.c:791
 deactivate_locked_super+0xc4/0x120 fs/super.c:473
 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1413
 task_work_run+0x24f/0x310 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xa2a/0x28d0 kernel/exit.c:938
 do_group_exit+0x207/0x2c0 kernel/exit.c:1087
 get_signal+0x16a6/0x1740 kernel/signal.c:3036
 arch_do_signal_or_restart+0x96/0x830 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xcd/0x330 kernel/entry/common.c:218
 do_syscall_64+0x8e/0x160 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

The buggy address belongs to the object at ffff888032572c00
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
 freed 512-byte region [ffff888032572c00, ffff888032572e00)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x32570
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801a041c80 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801a041c80 0000000000000000 dead000000000001
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0000c95c01 ffffffffffffffff 0000000000000000
head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 24388363985, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1ec/0x220 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0x3607/0x3750 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x256/0x690 mm/page_alloc.c:4739
 alloc_pages_mpol+0x311/0x660 mm/mempolicy.c:2270
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab+0x8f/0x3a0 mm/slub.c:2587
 new_slab mm/slub.c:2640 [inline]
 ___slab_alloc+0xc35/0x14a0 mm/slub.c:3826
 __slab_alloc+0x58/0xa0 mm/slub.c:3916
 __slab_alloc_node mm/slub.c:3991 [inline]
 slab_alloc_node mm/slub.c:4152 [inline]
 __do_kmalloc_node mm/slub.c:4293 [inline]
 __kmalloc_node_track_caller_noprof+0x2e4/0x490 mm/slub.c:4313
 __do_krealloc mm/slub.c:4820 [inline]
 krealloc_noprof+0xbe/0x2a0 mm/slub.c:4873
 add_sysfs_param+0xca/0x7f0 kernel/params.c:654
 kernel_add_sysfs_param+0xb4/0x130 kernel/params.c:817
 param_sysfs_builtin+0x16e/0x1f0 kernel/params.c:856
 param_sysfs_builtin_init+0x31/0x40 kernel/params.c:990
 do_one_initcall+0x248/0x850 init/main.c:1257
 do_initcall_level+0x157/0x210 init/main.c:1319
 do_initcalls+0x3f/0x80 init/main.c:1335
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888032572b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888032572b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888032572c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff888032572c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888032572d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================


Warning: Permanently added '10.128.1.72' (ED25519) to the list of known hosts.
2025/02/27 07:12:02 ignoring optional flag "sandboxArg"="0"
2025/02/27 07:12:03 parsed 1 programs
[   75.306394][ T5701] cgroup: Unknown subsys name 'net'
[   75.422981][ T5701] cgroup: Unknown subsys name 'cpuset'
[   75.431075][ T5701] cgroup: Unknown subsys name 'rlimit'
[   75.436722][ T5701] cgroup: Unknown subsys name 'memory'
[   76.990125][ T5701] Adding 124996k swap on ./swap-file.  Priority:0 extents:1 across:124996k 
[   79.984078][   T78] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   79.997280][   T78] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   80.174980][   T78] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   80.226458][   T78] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   80.309464][ T5720] ==================================================================
[   80.317597][ T5720] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[   80.325385][ T5720] Write of size 8 at addr ffff888032572c08 by task syz-executor/5720
[   80.333486][ T5720] 
[   80.335849][ T5720] CPU: 1 UID: 0 PID: 5720 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller #0
[   80.335873][ T5720] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   80.335891][ T5720] Call Trace:
[   80.335900][ T5720]  <TASK>
[   80.335909][ T5720]  dump_stack_lvl+0x241/0x360
[   80.335942][ T5720]  ? __pfx_dump_stack_lvl+0x10/0x10
[   80.335964][ T5720]  ? __pfx__printk+0x10/0x10
[   80.335987][ T5720]  ? _printk+0xd5/0x120
[   80.336008][ T5720]  ? __virt_addr_valid+0x183/0x530
[   80.336034][ T5720]  ? __virt_addr_valid+0x183/0x530
[   80.336059][ T5720]  print_report+0x16e/0x5b0
[   80.336090][ T5720]  ? __virt_addr_valid+0x183/0x530
[   80.336114][ T5720]  ? __virt_addr_valid+0x183/0x530
[   80.336138][ T5720]  ? __virt_addr_valid+0x45f/0x530
[   80.336161][ T5720]  ? __phys_addr+0xba/0x170
[   80.336186][ T5720]  ? binder_add_device+0x5f/0xa0
[   80.336209][ T5720]  kasan_report+0x143/0x180
[   80.336239][ T5720]  ? binder_add_device+0x5f/0xa0
[   80.336265][ T5720]  binder_add_device+0x5f/0xa0
[   80.336294][ T5720]  binderfs_binder_device_create+0x7bf/0x9c0
[   80.336322][ T5720]  binderfs_fill_super+0x944/0xd90
[   80.336347][ T5720]  ? __pfx_binderfs_fill_super+0x10/0x10
[   80.336380][ T5720]  ? shrinker_register+0x160/0x230
[   80.336407][ T5720]  ? sget_fc+0x909/0x9c0
[   80.336439][ T5720]  ? __pfx_set_anon_super_fc+0x10/0x10
[   80.336459][ T5720]  ? __pfx_binderfs_fill_super+0x10/0x10
[   80.336481][ T5720]  get_tree_nodev+0xb7/0x140
[   80.336503][ T5720]  vfs_get_tree+0x90/0x290
[   80.336527][ T5720]  do_new_mount+0x2be/0xb40
[   80.336555][ T5720]  ? __pfx_do_new_mount+0x10/0x10
[   80.336584][ T5720]  __se_sys_mount+0x2d6/0x3c0
[   80.336610][ T5720]  ? lockdep_hardirqs_on_prepare+0x43d/0x7a0
[   80.336638][ T5720]  ? __pfx___se_sys_mount+0x10/0x10
[   80.336665][ T5720]  ? __x64_sys_mount+0x20/0xc0
[   80.336691][ T5720]  do_syscall_64+0x82/0x160
[   80.336714][ T5720]  ? clear_bhb_loop+0x25/0x80
[   80.336743][ T5720]  ? clear_bhb_loop+0x25/0x80
[   80.336773][ T5720]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[   80.336810][ T5720] RIP: 0033:0x7f48a078e90a
[   80.336834][ T5720] 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
[   80.336851][ T5720] RSP: 002b:00007ffd43fed538 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   80.336873][ T5720] RAX: ffffffffffffffda RBX: 00007f48a080e663 RCX: 00007f48a078e90a
[   80.336889][ T5720] RDX: 00007f48a081dda7 RSI: 00007f48a080e663 RDI: 00007f48a081dda7
[   80.336903][ T5720] RBP: 00007f48a080e8ac R08: 0000000000000000 R09: 00000000000001ff
[   80.336916][ T5720] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f48a07eb1a8
[   80.336930][ T5720] R13: 00007f48a07eb180 R14: 0000000000000009 R15: 0000000000000000
[   80.336949][ T5720]  </TASK>
[   80.336957][ T5720] 
[   80.611805][ T5720] Allocated by task 5713:
[   80.616153][ T5720]  kasan_save_track+0x3f/0x80
[   80.620912][ T5720]  __kasan_kmalloc+0x7d/0x90
[   80.625549][ T5720]  __kmalloc_cache_noprof+0x23e/0x360
[   80.630959][ T5720]  binderfs_binder_device_create+0x16c/0x9c0
[   80.636948][ T5720]  binderfs_fill_super+0x944/0xd90
[   80.642073][ T5720]  get_tree_nodev+0xb7/0x140
[   80.646672][ T5720]  vfs_get_tree+0x90/0x290
[   80.651163][ T5720]  do_new_mount+0x2be/0xb40
[   80.655759][ T5720]  __se_sys_mount+0x2d6/0x3c0
[   80.660459][ T5720]  do_syscall_64+0x82/0x160
[   80.664967][ T5720]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[   80.670882][ T5720] 
[   80.673202][ T5720] Freed by task 5713:
[   80.677320][ T5720]  kasan_save_track+0x3f/0x80
[   80.682036][ T5720]  kasan_save_free_info+0x40/0x50
[   80.687065][ T5720]  __kasan_slab_free+0x36/0x50
[   80.691853][ T5720]  kfree+0x181/0x430
[   80.695765][ T5720]  evict+0x4e8/0x9a0
[   80.699684][ T5720]  __dentry_kill+0x200/0x610
[   80.704310][ T5720]  shrink_kill+0xa9/0x2c0
[   80.708661][ T5720]  shrink_dentry_list+0x2c0/0x5b0
[   80.713695][ T5720]  shrink_dcache_parent+0xcb/0x3b0
[   80.718828][ T5720]  do_one_tree+0x23/0xe0
[   80.723103][ T5720]  shrink_dcache_for_umount+0xb4/0x180
[   80.728943][ T5720]  generic_shutdown_super+0x6a/0x2d0
[   80.734276][ T5720]  kill_litter_super+0x76/0xb0
[   80.739166][ T5720]  binderfs_kill_super+0x44/0x90
[   80.744119][ T5720]  deactivate_locked_super+0xc4/0x120
[   80.749522][ T5720]  cleanup_mnt+0x41f/0x4b0
[   80.754027][ T5720]  task_work_run+0x24f/0x310
[   80.761092][ T5720]  do_exit+0xa2a/0x28d0
[   80.765480][ T5720]  do_group_exit+0x207/0x2c0
[   80.770099][ T5720]  get_signal+0x16a6/0x1740
[   80.775047][ T5720]  arch_do_signal_or_restart+0x96/0x830
[   80.780771][ T5720]  syscall_exit_to_user_mode+0xcd/0x330
[   80.786316][ T5720]  do_syscall_64+0x8e/0x160
[   80.790816][ T5720]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[   80.796885][ T5720] 
[   80.799204][ T5720] The buggy address belongs to the object at ffff888032572c00
[   80.799204][ T5720]  which belongs to the cache kmalloc-512 of size 512
[   80.813625][ T5720] The buggy address is located 8 bytes inside of
[   80.813625][ T5720]  freed 512-byte region [ffff888032572c00, ffff888032572e00)
[   80.827343][ T5720] 
[   80.829677][ T5720] The buggy address belongs to the physical page:
[   80.836106][ T5720] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x32570
[   80.844868][ T5720] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   80.853455][ T5720] anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[   80.861447][ T5720] page_type: f5(slab)
[   80.865431][ T5720] raw: 00fff00000000040 ffff88801a041c80 0000000000000000 dead000000000001
[   80.874020][ T5720] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[   80.882608][ T5720] head: 00fff00000000040 ffff88801a041c80 0000000000000000 dead000000000001
[   80.891381][ T5720] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[   80.900091][ T5720] head: 00fff00000000002 ffffea0000c95c01 ffffffffffffffff 0000000000000000
[   80.908868][ T5720] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   80.917539][ T5720] page dumped because: kasan: bad access detected
[   80.924154][ T5720] page_owner tracks the page as allocated
[   80.929867][ T5720] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 24388363985, free_ts 0
[   80.949601][ T5720]  post_alloc_hook+0x1ec/0x220
[   80.954792][ T5720]  get_page_from_freelist+0x3607/0x3750
[   80.960461][ T5720]  __alloc_frozen_pages_noprof+0x256/0x690
[   80.966316][ T5720]  alloc_pages_mpol+0x311/0x660
[   80.971228][ T5720]  allocate_slab+0x8f/0x3a0
[   80.975753][ T5720]  ___slab_alloc+0xc35/0x14a0
[   80.980438][ T5720]  __slab_alloc+0x58/0xa0
[   80.984775][ T5720]  __kmalloc_node_track_caller_noprof+0x2e4/0x490
[   80.991217][ T5720]  krealloc_noprof+0xbe/0x2a0
[   80.995927][ T5720]  add_sysfs_param+0xca/0x7f0
[   81.000613][ T5720]  kernel_add_sysfs_param+0xb4/0x130
[   81.005899][ T5720]  param_sysfs_builtin+0x16e/0x1f0
[   81.011032][ T5720]  param_sysfs_builtin_init+0x31/0x40
[   81.016428][ T5720]  do_one_initcall+0x248/0x850
[   81.021299][ T5720]  do_initcall_level+0x157/0x210
[   81.026433][ T5720]  do_initcalls+0x3f/0x80
[   81.030877][ T5720] page_owner free stack trace missing
[   81.036239][ T5720] 
[   81.038562][ T5720] Memory state around the buggy address:
[   81.044193][ T5720]  ffff888032572b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   81.052277][ T5720]  ffff888032572b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   81.060336][ T5720] >ffff888032572c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   81.068478][ T5720]                       ^
[   81.072886][ T5720]  ffff888032572c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   81.080953][ T5720]  ffff888032572d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   81.089125][ T5720] ==================================================================
[   81.102633][ T5720] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[   81.109905][ T5720] CPU: 1 UID: 0 PID: 5720 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller #0
[   81.119138][ T5720] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   81.129211][ T5720] Call Trace:
[   81.132512][ T5720]  <TASK>
[   81.135532][ T5720]  dump_stack_lvl+0x241/0x360
[   81.140261][ T5720]  ? __pfx_dump_stack_lvl+0x10/0x10
[   81.145473][ T5720]  ? __pfx__printk+0x10/0x10
[   81.150069][ T5720]  ? preempt_schedule+0xe1/0xf0
[   81.154948][ T5720]  ? vscnprintf+0x5d/0x90
[   81.159303][ T5720]  panic+0x349/0x880
[   81.163297][ T5720]  ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[   81.169705][ T5720]  ? check_panic_on_warn+0x21/0xb0
[   81.174830][ T5720]  ? __pfx_panic+0x10/0x10
[   81.179257][ T5720]  ? _raw_spin_unlock_irqrestore+0x130/0x140
[   81.185263][ T5720]  ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[   81.191605][ T5720]  ? print_report+0x519/0x5b0
[   81.196296][ T5720]  check_panic_on_warn+0x86/0xb0
[   81.201345][ T5720]  ? binder_add_device+0x5f/0xa0
[   81.206307][ T5720]  end_report+0x77/0x150
[   81.210563][ T5720]  kasan_report+0x154/0x180
[   81.215079][ T5720]  ? binder_add_device+0x5f/0xa0
[   81.220027][ T5720]  binder_add_device+0x5f/0xa0
[   81.224803][ T5720]  binderfs_binder_device_create+0x7bf/0x9c0
[   81.230824][ T5720]  binderfs_fill_super+0x944/0xd90
[   81.235970][ T5720]  ? __pfx_binderfs_fill_super+0x10/0x10
[   81.241615][ T5720]  ? shrinker_register+0x160/0x230
[   81.246734][ T5720]  ? sget_fc+0x909/0x9c0
[   81.250991][ T5720]  ? __pfx_set_anon_super_fc+0x10/0x10
[   81.256455][ T5720]  ? __pfx_binderfs_fill_super+0x10/0x10
[   81.262095][ T5720]  get_tree_nodev+0xb7/0x140
[   81.266715][ T5720]  vfs_get_tree+0x90/0x290
[   81.271164][ T5720]  do_new_mount+0x2be/0xb40
[   81.276025][ T5720]  ? __pfx_do_new_mount+0x10/0x10
[   81.281093][ T5720]  __se_sys_mount+0x2d6/0x3c0
[   81.285781][ T5720]  ? lockdep_hardirqs_on_prepare+0x43d/0x7a0
[   81.291773][ T5720]  ? __pfx___se_sys_mount+0x10/0x10
[   81.296982][ T5720]  ? __x64_sys_mount+0x20/0xc0
[   81.301754][ T5720]  do_syscall_64+0x82/0x160
[   81.306263][ T5720]  ? clear_bhb_loop+0x25/0x80
[   81.310950][ T5720]  ? clear_bhb_loop+0x25/0x80
[   81.315637][ T5720]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[   81.321542][ T5720] RIP: 0033:0x7f48a078e90a
[   81.326053][ T5720] 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
[   81.345667][ T5720] RSP: 002b:00007ffd43fed538 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   81.354187][ T5720] RAX: ffffffffffffffda RBX: 00007f48a080e663 RCX: 00007f48a078e90a
[   81.362187][ T5720] RDX: 00007f48a081dda7 RSI: 00007f48a080e663 RDI: 00007f48a081dda7
[   81.370194][ T5720] RBP: 00007f48a080e8ac R08: 0000000000000000 R09: 00000000000001ff
[   81.378274][ T5720] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f48a07eb1a8
[   81.386265][ T5720] R13: 00007f48a07eb180 R14: 0000000000000009 R15: 0000000000000000
[   81.394251][ T5720]  </TASK>
[   81.397620][ T5720] Kernel Offset: disabled
[   81.401953][ T5720] Rebooting in 86400 seconds..


syzkaller build log:
go env (err=<nil>)
GO111MODULE='auto'
GOARCH='amd64'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs-2/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/syzkaller/jobs-2/linux/gopath/pkg/mod/golang.org/toolchain@v0.0.1-go1.23.6.linux-amd64'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/syzkaller/jobs-2/linux/gopath/pkg/mod/golang.org/toolchain@v0.0.1-go1.23.6.linux-amd64/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.23.6'
GODEBUG=''
GOTELEMETRY='local'
GOTELEMETRYDIR='/syzkaller/.config/go/telemetry'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build1977622070=/tmp/go-build -gno-record-gcc-switches'

git status (err=<nil>)
HEAD detached at d34966d146
nothing to commit, working tree clean


tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=d34966d146f584d390b49f213d1fccd59548dc6d -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250221-172117'" -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
mkdir -p ./bin/linux_amd64
g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \
	-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include   -DGOOS_linux=1 -DGOARCH_amd64=1 \
	-DHOSTGOOS_linux=1 -DGIT_REVISION=\"d34966d146f584d390b49f213d1fccd59548dc6d\"
/usr/bin/ld: /tmp/ccY6n1Kg.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking