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+0x5b/0xa0 drivers/android/binder.c:6932
Write of size 8 at addr ffff88803434d008 by task syz-executor/5792
CPU: 0 UID: 0 PID: 5792 Comm: syz-executor Not tainted 6.14.0-rc2-syzkaller-ga64dcfb451e2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x23d/0x360 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0x165/0x540 mm/kasan/report.c:489
kasan_report+0x13f/0x180 mm/kasan/report.c:602
hlist_add_head include/linux/list.h:1026 [inline]
binder_add_device+0x5b/0xa0 drivers/android/binder.c:6932
binderfs_binder_device_create+0x7bf/0x9c0 drivers/android/binderfs.c:210
binderfs_fill_super+0x940/0xd90 drivers/android/binderfs.c:729
vfs_get_super fs/super.c:1280 [inline]
get_tree_nodev+0xb3/0x140 fs/super.c:1299
vfs_get_tree+0x8c/0x280 fs/super.c:1814
do_new_mount+0x2ba/0xb40 fs/namespace.c:3560
do_mount fs/namespace.c:3900 [inline]
__do_sys_mount fs/namespace.c:4111 [inline]
__se_sys_mount+0x2d2/0x3c0 fs/namespace.c:4088
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x7e/0x180 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fef17f8e58a
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:00007ffcd9af1bd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fef1800e663 RCX: 00007fef17f8e58a
RDX: 00007fef1801dda7 RSI: 00007fef1800e663 RDI: 00007fef1801dda7
RBP: 00007fef1800e8ac R08: 0000000000000000 R09: 00000000000001ff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fef17feb1a8
R13: 00007fef17feb180 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5789:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3b/0x70 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0x94/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__kmalloc_cache_noprof+0x237/0x370 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+0x940/0xd90 drivers/android/binderfs.c:729
vfs_get_super fs/super.c:1280 [inline]
get_tree_nodev+0xb3/0x140 fs/super.c:1299
vfs_get_tree+0x8c/0x280 fs/super.c:1814
do_new_mount+0x2ba/0xb40 fs/namespace.c:3560
do_mount fs/namespace.c:3900 [inline]
__do_sys_mount fs/namespace.c:4111 [inline]
__se_sys_mount+0x2d2/0x3c0 fs/namespace.c:4088
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x7e/0x180 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
Freed by task 5789:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3b/0x70 mm/kasan/common.c:68
kasan_save_free_info+0x3c/0x50 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x55/0x70 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+0x18e/0x410 mm/slub.c:4757
evict+0x4e4/0x990 fs/inode.c:796
__dentry_kill+0x200/0x610 fs/dcache.c:643
shrink_kill+0xa9/0x2c0 fs/dcache.c:1088
shrink_dentry_list+0x2bc/0x5b0 fs/dcache.c:1115
shrink_dcache_parent+0xc7/0x3b0
do_one_tree+0x23/0xe0 fs/dcache.c:1578
shrink_dcache_for_umount+0xb0/0x170 fs/dcache.c:1595
generic_shutdown_super+0x66/0x2d0 fs/super.c:620
kill_anon_super fs/super.c:1237 [inline]
kill_litter_super+0x72/0xa0 fs/super.c:1247
binderfs_kill_super+0x40/0x90 drivers/android/binderfs.c:791
deactivate_locked_super+0xc0/0x120 fs/super.c:473
cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1413
task_work_run+0x24b/0x310 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa26/0x28d0 kernel/exit.c:938
do_group_exit+0x203/0x2b0 kernel/exit.c:1087
get_signal+0x16ae/0x1740 kernel/signal.c:3036
arch_do_signal_or_restart+0x92/0x860 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+0xc9/0x320 kernel/entry/common.c:218
do_syscall_64+0x8a/0x180 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x76/0x7e
The buggy address belongs to the object at ffff88803434d000
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff88803434d000, ffff88803434d200)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3434c
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801a441c80 ffffea0000a44300 dead000000000002
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801a441c80 ffffea0000a44300 dead000000000002
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0000d0d301 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 5160, tgid 5160 (udevadm), ts 33096648447, free_ts 33031621335
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1e0/0x220 mm/page_alloc.c:1551
prep_new_page mm/page_alloc.c:1559 [inline]
get_page_from_freelist+0x35e2/0x3720 mm/page_alloc.c:3477
__alloc_frozen_pages_noprof+0x252/0x680 mm/page_alloc.c:4739
alloc_pages_mpol+0x30d/0x660 mm/mempolicy.c:2270
alloc_slab_page mm/slub.c:2423 [inline]
allocate_slab+0x8f/0x390 mm/slub.c:2587
new_slab mm/slub.c:2640 [inline]
___slab_alloc+0xc35/0x1490 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]
__kmalloc_cache_noprof+0x26f/0x370 mm/slub.c:4320
kmalloc_noprof include/linux/slab.h:901 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
kernfs_fop_open+0x3dc/0xd00 fs/kernfs/file.c:623
do_dentry_open+0xdea/0x1960 fs/open.c:956
vfs_open+0x37/0x360 fs/open.c:1086
do_open fs/namei.c:3830 [inline]
path_openat+0x2c79/0x3580 fs/namei.c:3989
do_filp_open+0x27b/0x4d0 fs/namei.c:4016
do_sys_openat2+0x13a/0x1d0 fs/open.c:1428
do_sys_open fs/open.c:1443 [inline]
__do_sys_openat fs/open.c:1459 [inline]
__se_sys_openat fs/open.c:1454 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1454
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x7e/0x180 arch/x86/entry/common.c:83
page last free pid 5166 tgid 5166 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_frozen_pages+0xddf/0x10a0 mm/page_alloc.c:2660
discard_slab mm/slub.c:2684 [inline]
__put_partials+0x15e/0x1b0 mm/slub.c:3153
put_cpu_partial+0x17c/0x250 mm/slub.c:3228
__slab_free+0x28c/0x370 mm/slub.c:4479
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9a/0x130 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4115 [inline]
slab_alloc_node mm/slub.c:4164 [inline]
__kmalloc_cache_noprof+0x1d1/0x370 mm/slub.c:4320
kmalloc_noprof include/linux/slab.h:901 [inline]
tomoyo_print_header security/tomoyo/audit.c:156 [inline]
tomoyo_init_log+0x1c6/0x2040 security/tomoyo/audit.c:255
tomoyo_supervisor+0x3a0/0x1770 security/tomoyo/common.c:2119
tomoyo_audit_path_number_log security/tomoyo/file.c:235 [inline]
tomoyo_path_number_perm+0x5a1/0x810 security/tomoyo/file.c:734
security_file_ioctl+0xba/0x270 security/security.c:2913
__do_sys_ioctl fs/ioctl.c:900 [inline]
__se_sys_ioctl+0x46/0x170 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x7e/0x180 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
Memory state around the buggy address:
ffff88803434cf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88803434cf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88803434d000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88803434d080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88803434d100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.1.37' (ED25519) to the list of known hosts.
2025/02/10 00:11:18 ignoring optional flag "sandboxArg"="0"
2025/02/10 00:11:20 parsed 1 programs
[ 77.077389][ T5779] cgroup: Unknown subsys name 'net'
[ 77.225619][ T5779] cgroup: Unknown subsys name 'cpuset'
[ 77.234121][ T5779] cgroup: Unknown subsys name 'rlimit'
[ 77.239746][ T5779] cgroup: Unknown subsys name 'memory'
[ 78.783177][ T5779] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 82.064151][ T5792] ==================================================================
[ 82.072281][ T5792] BUG: KASAN: slab-use-after-free in binder_add_device+0x5b/0xa0
[ 82.080045][ T5792] Write of size 8 at addr ffff88803434d008 by task syz-executor/5792
[ 82.088226][ T5792]
[ 82.090589][ T5792] CPU: 0 UID: 0 PID: 5792 Comm: syz-executor Not tainted 6.14.0-rc2-syzkaller-ga64dcfb451e2 #0
[ 82.090618][ T5792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 82.090639][ T5792] Call Trace:
[ 82.090648][ T5792]
[ 82.090656][ T5792] dump_stack_lvl+0x23d/0x360
[ 82.090692][ T5792] ? __pfx_dump_stack_lvl+0x10/0x10
[ 82.090722][ T5792] ? __pfx__printk+0x10/0x10
[ 82.090762][ T5792] ? _printk+0xd1/0x120
[ 82.090789][ T5792] ? __virt_addr_valid+0x17f/0x530
[ 82.090809][ T5792] ? __virt_addr_valid+0x17f/0x530
[ 82.090830][ T5792] print_report+0x165/0x540
[ 82.090863][ T5792] ? __virt_addr_valid+0x17f/0x530
[ 82.090883][ T5792] ? __virt_addr_valid+0x17f/0x530
[ 82.090902][ T5792] ? __virt_addr_valid+0x45b/0x530
[ 82.090922][ T5792] ? __phys_addr+0xb6/0x170
[ 82.090948][ T5792] ? binder_add_device+0x5b/0xa0
[ 82.090967][ T5792] kasan_report+0x13f/0x180
[ 82.090999][ T5792] ? binder_add_device+0x5b/0xa0
[ 82.091022][ T5792] binder_add_device+0x5b/0xa0
[ 82.091041][ T5792] binderfs_binder_device_create+0x7bf/0x9c0
[ 82.091077][ T5792] binderfs_fill_super+0x940/0xd90
[ 82.091112][ T5792] ? __pfx_binderfs_fill_super+0x10/0x10
[ 82.091155][ T5792] ? shrinker_register+0x15c/0x220
[ 82.091183][ T5792] ? sget_fc+0x905/0x9c0
[ 82.091212][ T5792] ? __pfx_set_anon_super_fc+0x10/0x10
[ 82.091231][ T5792] ? __pfx_binderfs_fill_super+0x10/0x10
[ 82.091262][ T5792] get_tree_nodev+0xb3/0x140
[ 82.091282][ T5792] vfs_get_tree+0x8c/0x280
[ 82.091304][ T5792] do_new_mount+0x2ba/0xb40
[ 82.091332][ T5792] ? __pfx_do_new_mount+0x10/0x10
[ 82.091360][ T5792] __se_sys_mount+0x2d2/0x3c0
[ 82.091386][ T5792] ? lockdep_hardirqs_on_prepare+0x439/0x7a0
[ 82.091418][ T5792] ? __pfx___se_sys_mount+0x10/0x10
[ 82.091446][ T5792] ? __x64_sys_mount+0x1c/0xc0
[ 82.091472][ T5792] do_syscall_64+0x7e/0x180
[ 82.091497][ T5792] ? clear_bhb_loop+0x45/0xa0
[ 82.091526][ T5792] ? clear_bhb_loop+0x45/0xa0
[ 82.091556][ T5792] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 82.091588][ T5792] RIP: 0033:0x7fef17f8e58a
[ 82.091610][ T5792] 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
[ 82.091627][ T5792] RSP: 002b:00007ffcd9af1bd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 82.091648][ T5792] RAX: ffffffffffffffda RBX: 00007fef1800e663 RCX: 00007fef17f8e58a
[ 82.091664][ T5792] RDX: 00007fef1801dda7 RSI: 00007fef1800e663 RDI: 00007fef1801dda7
[ 82.091683][ T5792] RBP: 00007fef1800e8ac R08: 0000000000000000 R09: 00000000000001ff
[ 82.091700][ T5792] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fef17feb1a8
[ 82.091713][ T5792] R13: 00007fef17feb180 R14: 0000000000000009 R15: 0000000000000000
[ 82.091733][ T5792]
[ 82.091740][ T5792]
[ 82.363948][ T5792] Allocated by task 5789:
[ 82.368277][ T5792] kasan_save_track+0x3b/0x70
[ 82.372967][ T5792] __kasan_kmalloc+0x94/0xb0
[ 82.377576][ T5792] __kmalloc_cache_noprof+0x237/0x370
[ 82.382966][ T5792] binderfs_binder_device_create+0x16c/0x9c0
[ 82.388956][ T5792] binderfs_fill_super+0x940/0xd90
[ 82.394089][ T5792] get_tree_nodev+0xb3/0x140
[ 82.398683][ T5792] vfs_get_tree+0x8c/0x280
[ 82.403106][ T5792] do_new_mount+0x2ba/0xb40
[ 82.407616][ T5792] __se_sys_mount+0x2d2/0x3c0
[ 82.412299][ T5792] do_syscall_64+0x7e/0x180
[ 82.416810][ T5792] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 82.422798][ T5792]
[ 82.425119][ T5792] Freed by task 5789:
[ 82.429095][ T5792] kasan_save_track+0x3b/0x70
[ 82.433781][ T5792] kasan_save_free_info+0x3c/0x50
[ 82.438812][ T5792] __kasan_slab_free+0x55/0x70
[ 82.443583][ T5792] kfree+0x18e/0x410
[ 82.447479][ T5792] evict+0x4e4/0x990
[ 82.451391][ T5792] __dentry_kill+0x200/0x610
[ 82.455992][ T5792] shrink_kill+0xa9/0x2c0
[ 82.460328][ T5792] shrink_dentry_list+0x2bc/0x5b0
[ 82.465358][ T5792] shrink_dcache_parent+0xc7/0x3b0
[ 82.470478][ T5792] do_one_tree+0x23/0xe0
[ 82.474731][ T5792] shrink_dcache_for_umount+0xb0/0x170
[ 82.480200][ T5792] generic_shutdown_super+0x66/0x2d0
[ 82.485496][ T5792] kill_litter_super+0x72/0xa0
[ 82.490261][ T5792] binderfs_kill_super+0x40/0x90
[ 82.495208][ T5792] deactivate_locked_super+0xc0/0x120
[ 82.500586][ T5792] cleanup_mnt+0x41f/0x4b0
[ 82.505014][ T5792] task_work_run+0x24b/0x310
[ 82.509605][ T5792] do_exit+0xa26/0x28d0
[ 82.513768][ T5792] do_group_exit+0x203/0x2b0
[ 82.518368][ T5792] get_signal+0x16ae/0x1740
[ 82.522888][ T5792] arch_do_signal_or_restart+0x92/0x860
[ 82.528446][ T5792] syscall_exit_to_user_mode+0xc9/0x320
[ 82.534432][ T5792] do_syscall_64+0x8a/0x180
[ 82.539027][ T5792] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 82.544929][ T5792]
[ 82.547248][ T5792] The buggy address belongs to the object at ffff88803434d000
[ 82.547248][ T5792] which belongs to the cache kmalloc-512 of size 512
[ 82.561298][ T5792] The buggy address is located 8 bytes inside of
[ 82.561298][ T5792] freed 512-byte region [ffff88803434d000, ffff88803434d200)
[ 82.574921][ T5792]
[ 82.577243][ T5792] The buggy address belongs to the physical page:
[ 82.583662][ T5792] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3434c
[ 82.592439][ T5792] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 82.600936][ T5792] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 82.608491][ T5792] page_type: f5(slab)
[ 82.612475][ T5792] raw: 00fff00000000040 ffff88801a441c80 ffffea0000a44300 dead000000000002
[ 82.621056][ T5792] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 82.629647][ T5792] head: 00fff00000000040 ffff88801a441c80 ffffea0000a44300 dead000000000002
[ 82.638321][ T5792] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 82.646993][ T5792] head: 00fff00000000002 ffffea0000d0d301 ffffffffffffffff 0000000000000000
[ 82.655669][ T5792] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 82.664333][ T5792] page dumped because: kasan: bad access detected
[ 82.670746][ T5792] page_owner tracks the page as allocated
[ 82.676493][ T5792] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5160, tgid 5160 (udevadm), ts 33096648447, free_ts 33031621335
[ 82.697424][ T5792] post_alloc_hook+0x1e0/0x220
[ 82.702197][ T5792] get_page_from_freelist+0x35e2/0x3720
[ 82.707753][ T5792] __alloc_frozen_pages_noprof+0x252/0x680
[ 82.713572][ T5792] alloc_pages_mpol+0x30d/0x660
[ 82.718421][ T5792] allocate_slab+0x8f/0x390
[ 82.722935][ T5792] ___slab_alloc+0xc35/0x1490
[ 82.727618][ T5792] __slab_alloc+0x58/0xa0
[ 82.731957][ T5792] __kmalloc_cache_noprof+0x26f/0x370
[ 82.737330][ T5792] kernfs_fop_open+0x3dc/0xd00
[ 82.742100][ T5792] do_dentry_open+0xdea/0x1960
[ 82.746869][ T5792] vfs_open+0x37/0x360
[ 82.750958][ T5792] path_openat+0x2c79/0x3580
[ 82.755568][ T5792] do_filp_open+0x27b/0x4d0
[ 82.760079][ T5792] do_sys_openat2+0x13a/0x1d0
[ 82.764762][ T5792] __x64_sys_openat+0x243/0x290
[ 82.769619][ T5792] do_syscall_64+0x7e/0x180
[ 82.774152][ T5792] page last free pid 5166 tgid 5166 stack trace:
[ 82.780489][ T5792] free_frozen_pages+0xddf/0x10a0
[ 82.785546][ T5792] __put_partials+0x15e/0x1b0
[ 82.790238][ T5792] put_cpu_partial+0x17c/0x250
[ 82.795017][ T5792] __slab_free+0x28c/0x370
[ 82.799446][ T5792] qlist_free_all+0x9a/0x130
[ 82.804050][ T5792] kasan_quarantine_reduce+0x14b/0x160
[ 82.809516][ T5792] __kasan_slab_alloc+0x1f/0x70
[ 82.814378][ T5792] __kmalloc_cache_noprof+0x1d1/0x370
[ 82.819755][ T5792] tomoyo_init_log+0x1c6/0x2040
[ 82.824612][ T5792] tomoyo_supervisor+0x3a0/0x1770
[ 82.829666][ T5792] tomoyo_path_number_perm+0x5a1/0x810
[ 82.835137][ T5792] security_file_ioctl+0xba/0x270
[ 82.840161][ T5792] __se_sys_ioctl+0x46/0x170
[ 82.844766][ T5792] do_syscall_64+0x7e/0x180
[ 82.849276][ T5792] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 82.855181][ T5792]
[ 82.857522][ T5792] Memory state around the buggy address:
[ 82.863154][ T5792] ffff88803434cf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 82.871214][ T5792] ffff88803434cf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 82.879276][ T5792] >ffff88803434d000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 82.887337][ T5792] ^
[ 82.891666][ T5792] ffff88803434d080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 82.899738][ T5792] ffff88803434d100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 82.907796][ T5792] ==================================================================
[ 82.918264][ T5792] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 82.925515][ T5792] CPU: 1 UID: 0 PID: 5792 Comm: syz-executor Not tainted 6.14.0-rc2-syzkaller-ga64dcfb451e2 #0
[ 82.935877][ T5792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 82.945999][ T5792] Call Trace:
[ 82.949304][ T5792]
[ 82.952268][ T5792] dump_stack_lvl+0x23d/0x360
[ 82.957029][ T5792] ? __pfx_dump_stack_lvl+0x10/0x10
[ 82.962269][ T5792] ? __pfx__printk+0x10/0x10
[ 82.966904][ T5792] ? preempt_schedule+0xdd/0xf0
[ 82.971799][ T5792] ? vscnprintf+0x59/0x80
[ 82.976162][ T5792] panic+0x345/0x880
[ 82.980096][ T5792] ? asm_sysvec_apic_timer_interrupt+0x16/0x20
[ 82.986298][ T5792] ? check_panic_on_warn+0x1d/0xa0
[ 82.991462][ T5792] ? __pfx_panic+0x10/0x10
[ 82.995940][ T5792] ? _raw_spin_unlock_irqrestore+0x12c/0x140
[ 83.001962][ T5792] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 83.008323][ T5792] ? print_report+0x4fe/0x540
[ 83.013047][ T5792] check_panic_on_warn+0x82/0xa0
[ 83.018011][ T5792] ? binder_add_device+0x5b/0xa0
[ 83.023054][ T5792] end_report+0x77/0x150
[ 83.027326][ T5792] kasan_report+0x150/0x180
[ 83.031854][ T5792] ? binder_add_device+0x5b/0xa0
[ 83.036816][ T5792] binder_add_device+0x5b/0xa0
[ 83.041674][ T5792] binderfs_binder_device_create+0x7bf/0x9c0
[ 83.047710][ T5792] binderfs_fill_super+0x940/0xd90
[ 83.052863][ T5792] ? __pfx_binderfs_fill_super+0x10/0x10
[ 83.058518][ T5792] ? shrinker_register+0x15c/0x220
[ 83.063646][ T5792] ? sget_fc+0x905/0x9c0
[ 83.067898][ T5792] ? __pfx_set_anon_super_fc+0x10/0x10
[ 83.073362][ T5792] ? __pfx_binderfs_fill_super+0x10/0x10
[ 83.079006][ T5792] get_tree_nodev+0xb3/0x140
[ 83.083605][ T5792] vfs_get_tree+0x8c/0x280
[ 83.088027][ T5792] do_new_mount+0x2ba/0xb40
[ 83.092539][ T5792] ? __pfx_do_new_mount+0x10/0x10
[ 83.097598][ T5792] __se_sys_mount+0x2d2/0x3c0
[ 83.102287][ T5792] ? lockdep_hardirqs_on_prepare+0x439/0x7a0
[ 83.108280][ T5792] ? __pfx___se_sys_mount+0x10/0x10
[ 83.113487][ T5792] ? __x64_sys_mount+0x1c/0xc0
[ 83.118253][ T5792] do_syscall_64+0x7e/0x180
[ 83.122783][ T5792] ? clear_bhb_loop+0x45/0xa0
[ 83.127472][ T5792] ? clear_bhb_loop+0x45/0xa0
[ 83.132164][ T5792] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 83.138063][ T5792] RIP: 0033:0x7fef17f8e58a
[ 83.142482][ T5792] 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
[ 83.162091][ T5792] RSP: 002b:00007ffcd9af1bd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 83.170510][ T5792] RAX: ffffffffffffffda RBX: 00007fef1800e663 RCX: 00007fef17f8e58a
[ 83.178486][ T5792] RDX: 00007fef1801dda7 RSI: 00007fef1800e663 RDI: 00007fef1801dda7
[ 83.186548][ T5792] RBP: 00007fef1800e8ac R08: 0000000000000000 R09: 00000000000001ff
[ 83.194613][ T5792] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fef17feb1a8
[ 83.202591][ T5792] R13: 00007fef17feb180 R14: 0000000000000009 R15: 0000000000000000
[ 83.210570][ T5792]
[ 83.213926][ T5792] Kernel Offset: disabled
[ 83.218248][ T5792] Rebooting in 86400 seconds..
syzkaller build log:
go env (err=)
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-build2933525567=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at ef44b750e8
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=ef44b750e8fab8d6d5cb84920680581b13e0d470 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250207-152458'" -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=\"ef44b750e8fab8d6d5cb84920680581b13e0d470\"
/usr/bin/ld: /tmp/ccElOTXh.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