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 ffff88802e3f3c08 by task syz-executor/5716
CPU: 1 UID: 0 PID: 5716 Comm: syz-executor Not tainted 6.13.0-syzkaller #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+0x241/0x360 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0x169/0x550 mm/kasan/report.c:489
kasan_report+0x143/0x180 mm/kasan/report.c:602
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: 0033:0x7fa95998e54a
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:00007ffc87458f08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fa959a0e663 RCX: 00007fa95998e54a
RDX: 00007fa959a1dda7 RSI: 00007fa959a0e663 RDI: 00007fa959a1dda7
RBP: 00007fa959a0e8ac R08: 0000000000000000 R09: 00000000000001ff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa9599eb1a8
R13: 00007fa9599eb180 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5710:
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 5710:
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:625
shrink_kill+0xa9/0x2c0 fs/dcache.c:1070
shrink_dentry_list+0x2c0/0x5b0 fs/dcache.c:1097
shrink_dcache_parent+0xcb/0x3b0
do_one_tree+0x23/0xe0 fs/dcache.c:1560
shrink_dcache_for_umount+0xb4/0x180 fs/dcache.c:1577
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 ffff88802e3f3c00
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff88802e3f3c00, ffff88802e3f3e00)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2e3f0
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 ffff88801a041c80 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801a041c80 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0000b8fc01 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 5077, tgid 5077 (udevadm), ts 30437886279, free_ts 30422783780
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]
__kmalloc_cache_noprof+0x276/0x360 mm/slub.c:4320
kmalloc_noprof include/linux/slab.h:901 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
kernfs_fop_open+0x3e0/0xd10 fs/kernfs/file.c:623
do_dentry_open+0xdea/0x1960 fs/open.c:955
vfs_open+0x3b/0x370 fs/open.c:1085
do_open fs/namei.c:3828 [inline]
path_openat+0x2c70/0x3580 fs/namei.c:3987
do_filp_open+0x27f/0x4e0 fs/namei.c:4014
do_sys_openat2+0x13e/0x1d0 fs/open.c:1427
do_sys_open fs/open.c:1442 [inline]
__do_sys_openat fs/open.c:1458 [inline]
__se_sys_openat fs/open.c:1453 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1453
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
page last free pid 5077 tgid 5077 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_frozen_pages+0xdf5/0x10b0 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+0x290/0x380 mm/slub.c:4479
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x23/0x60 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+0x1d4/0x360 mm/slub.c:4320
kmalloc_noprof include/linux/slab.h:901 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
kernfs_fop_open+0x3e0/0xd10 fs/kernfs/file.c:623
do_dentry_open+0xdea/0x1960 fs/open.c:955
vfs_open+0x3b/0x370 fs/open.c:1085
do_open fs/namei.c:3828 [inline]
path_openat+0x2c70/0x3580 fs/namei.c:3987
do_filp_open+0x27f/0x4e0 fs/namei.c:4014
do_sys_openat2+0x13e/0x1d0 fs/open.c:1427
do_sys_open fs/open.c:1442 [inline]
__do_sys_openat fs/open.c:1458 [inline]
__se_sys_openat fs/open.c:1453 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1453
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
Memory state around the buggy address:
ffff88802e3f3b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88802e3f3b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88802e3f3c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88802e3f3c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88802e3f3d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.1.28' (ED25519) to the list of known hosts.
2025/01/30 13:38:35 ignoring optional flag "sandboxArg"="0"
2025/01/30 13:38:37 parsed 1 programs
[ 74.221732][ T5701] cgroup: Unknown subsys name 'net'
[ 74.352474][ T5701] cgroup: Unknown subsys name 'cpuset'
[ 74.362017][ T5701] cgroup: Unknown subsys name 'rlimit'
[ 74.368440][ T5701] cgroup: Unknown subsys name 'memory'
[ 75.884599][ T5701] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 78.861331][ T5716] ==================================================================
[ 78.869457][ T5716] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[ 78.877503][ T5716] Write of size 8 at addr ffff88802e3f3c08 by task syz-executor/5716
[ 78.885752][ T5716]
[ 78.888137][ T5716] CPU: 1 UID: 0 PID: 5716 Comm: syz-executor Not tainted 6.13.0-syzkaller #0
[ 78.888155][ T5716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 78.888168][ T5716] Call Trace:
[ 78.888176][ T5716]
[ 78.888183][ T5716] dump_stack_lvl+0x241/0x360
[ 78.888205][ T5716] ? __pfx_dump_stack_lvl+0x10/0x10
[ 78.888221][ T5716] ? __pfx__printk+0x10/0x10
[ 78.888236][ T5716] ? _printk+0xd5/0x120
[ 78.888250][ T5716] ? __virt_addr_valid+0x183/0x530
[ 78.888268][ T5716] ? __virt_addr_valid+0x183/0x530
[ 78.888286][ T5716] print_report+0x169/0x550
[ 78.888307][ T5716] ? __virt_addr_valid+0x183/0x530
[ 78.888324][ T5716] ? __virt_addr_valid+0x183/0x530
[ 78.888340][ T5716] ? __virt_addr_valid+0x45f/0x530
[ 78.888357][ T5716] ? __phys_addr+0xba/0x170
[ 78.888374][ T5716] ? binder_add_device+0x5f/0xa0
[ 78.888397][ T5716] kasan_report+0x143/0x180
[ 78.888418][ T5716] ? binder_add_device+0x5f/0xa0
[ 78.888442][ T5716] binder_add_device+0x5f/0xa0
[ 78.888464][ T5716] binderfs_binder_device_create+0x7bf/0x9c0
[ 78.888489][ T5716] binderfs_fill_super+0x944/0xd90
[ 78.888513][ T5716] ? __pfx_binderfs_fill_super+0x10/0x10
[ 78.888554][ T5716] ? shrinker_register+0x160/0x230
[ 78.888573][ T5716] ? sget_fc+0x909/0x9c0
[ 78.888595][ T5716] ? __pfx_set_anon_super_fc+0x10/0x10
[ 78.888608][ T5716] ? __pfx_binderfs_fill_super+0x10/0x10
[ 78.888630][ T5716] get_tree_nodev+0xb7/0x140
[ 78.888644][ T5716] vfs_get_tree+0x90/0x290
[ 78.888660][ T5716] do_new_mount+0x2be/0xb40
[ 78.888679][ T5716] ? __pfx_do_new_mount+0x10/0x10
[ 78.888699][ T5716] __se_sys_mount+0x2d6/0x3c0
[ 78.888716][ T5716] ? lockdep_hardirqs_on_prepare+0x43d/0x7a0
[ 78.888736][ T5716] ? __pfx___se_sys_mount+0x10/0x10
[ 78.888756][ T5716] ? __x64_sys_mount+0x20/0xc0
[ 78.888775][ T5716] do_syscall_64+0x82/0x160
[ 78.888796][ T5716] ? clear_bhb_loop+0x25/0x80
[ 78.888818][ T5716] ? clear_bhb_loop+0x25/0x80
[ 78.888839][ T5716] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 78.888863][ T5716] RIP: 0033:0x7fa95998e54a
[ 78.888879][ T5716] 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
[ 78.888891][ T5716] RSP: 002b:00007ffc87458f08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 78.888908][ T5716] RAX: ffffffffffffffda RBX: 00007fa959a0e663 RCX: 00007fa95998e54a
[ 78.888919][ T5716] RDX: 00007fa959a1dda7 RSI: 00007fa959a0e663 RDI: 00007fa959a1dda7
[ 78.888929][ T5716] RBP: 00007fa959a0e8ac R08: 0000000000000000 R09: 00000000000001ff
[ 78.888938][ T5716] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa9599eb1a8
[ 78.888948][ T5716] R13: 00007fa9599eb180 R14: 0000000000000009 R15: 0000000000000000
[ 78.888962][ T5716]
[ 78.888967][ T5716]
[ 79.161727][ T5716] Allocated by task 5710:
[ 79.166057][ T5716] kasan_save_track+0x3f/0x80
[ 79.170743][ T5716] __kasan_kmalloc+0x7d/0x90
[ 79.175421][ T5716] __kmalloc_cache_noprof+0x23e/0x360
[ 79.180964][ T5716] binderfs_binder_device_create+0x16c/0x9c0
[ 79.187038][ T5716] binderfs_fill_super+0x944/0xd90
[ 79.192276][ T5716] get_tree_nodev+0xb7/0x140
[ 79.196984][ T5716] vfs_get_tree+0x90/0x290
[ 79.201504][ T5716] do_new_mount+0x2be/0xb40
[ 79.206025][ T5716] __se_sys_mount+0x2d6/0x3c0
[ 79.210730][ T5716] do_syscall_64+0x82/0x160
[ 79.215243][ T5716] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 79.221244][ T5716]
[ 79.223668][ T5716] Freed by task 5710:
[ 79.227661][ T5716] kasan_save_track+0x3f/0x80
[ 79.232364][ T5716] kasan_save_free_info+0x40/0x50
[ 79.237391][ T5716] __kasan_slab_free+0x36/0x50
[ 79.242166][ T5716] kfree+0x181/0x430
[ 79.246068][ T5716] evict+0x4e8/0x9a0
[ 79.249972][ T5716] __dentry_kill+0x200/0x610
[ 79.254568][ T5716] shrink_kill+0xa9/0x2c0
[ 79.258899][ T5716] shrink_dentry_list+0x2c0/0x5b0
[ 79.263943][ T5716] shrink_dcache_parent+0xcb/0x3b0
[ 79.269063][ T5716] do_one_tree+0x23/0xe0
[ 79.273306][ T5716] shrink_dcache_for_umount+0xb4/0x180
[ 79.278766][ T5716] generic_shutdown_super+0x6a/0x2d0
[ 79.284057][ T5716] kill_litter_super+0x76/0xb0
[ 79.288893][ T5716] binderfs_kill_super+0x44/0x90
[ 79.293843][ T5716] deactivate_locked_super+0xc4/0x120
[ 79.299308][ T5716] cleanup_mnt+0x41f/0x4b0
[ 79.303751][ T5716] task_work_run+0x24f/0x310
[ 79.308375][ T5716] do_exit+0xa2a/0x28d0
[ 79.312544][ T5716] do_group_exit+0x207/0x2c0
[ 79.317187][ T5716] get_signal+0x16a6/0x1740
[ 79.321760][ T5716] arch_do_signal_or_restart+0x96/0x830
[ 79.327355][ T5716] syscall_exit_to_user_mode+0xcd/0x330
[ 79.332931][ T5716] do_syscall_64+0x8e/0x160
[ 79.337673][ T5716] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 79.343603][ T5716]
[ 79.345931][ T5716] The buggy address belongs to the object at ffff88802e3f3c00
[ 79.345931][ T5716] which belongs to the cache kmalloc-512 of size 512
[ 79.360161][ T5716] The buggy address is located 8 bytes inside of
[ 79.360161][ T5716] freed 512-byte region [ffff88802e3f3c00, ffff88802e3f3e00)
[ 79.373800][ T5716]
[ 79.376227][ T5716] The buggy address belongs to the physical page:
[ 79.382685][ T5716] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2e3f0
[ 79.391567][ T5716] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 79.400103][ T5716] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 79.408015][ T5716] page_type: f5(slab)
[ 79.412032][ T5716] raw: 00fff00000000040 ffff88801a041c80 dead000000000100 dead000000000122
[ 79.420829][ T5716] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 79.429444][ T5716] head: 00fff00000000040 ffff88801a041c80 dead000000000100 dead000000000122
[ 79.438219][ T5716] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 79.446914][ T5716] head: 00fff00000000002 ffffea0000b8fc01 ffffffffffffffff 0000000000000000
[ 79.455597][ T5716] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 79.464271][ T5716] page dumped because: kasan: bad access detected
[ 79.470694][ T5716] page_owner tracks the page as allocated
[ 79.476414][ T5716] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5077, tgid 5077 (udevadm), ts 30437886279, free_ts 30422783780
[ 79.498070][ T5716] post_alloc_hook+0x1ec/0x220
[ 79.502920][ T5716] get_page_from_freelist+0x3607/0x3750
[ 79.508778][ T5716] __alloc_frozen_pages_noprof+0x256/0x690
[ 79.514840][ T5716] alloc_pages_mpol+0x311/0x660
[ 79.519724][ T5716] allocate_slab+0x8f/0x3a0
[ 79.524338][ T5716] ___slab_alloc+0xc35/0x14a0
[ 79.529047][ T5716] __slab_alloc+0x58/0xa0
[ 79.533386][ T5716] __kmalloc_cache_noprof+0x276/0x360
[ 79.538758][ T5716] kernfs_fop_open+0x3e0/0xd10
[ 79.543650][ T5716] do_dentry_open+0xdea/0x1960
[ 79.548624][ T5716] vfs_open+0x3b/0x370
[ 79.552729][ T5716] path_openat+0x2c70/0x3580
[ 79.557554][ T5716] do_filp_open+0x27f/0x4e0
[ 79.562084][ T5716] do_sys_openat2+0x13e/0x1d0
[ 79.566784][ T5716] __x64_sys_openat+0x247/0x2a0
[ 79.571745][ T5716] do_syscall_64+0x82/0x160
[ 79.576266][ T5716] page last free pid 5077 tgid 5077 stack trace:
[ 79.582607][ T5716] free_frozen_pages+0xdf5/0x10b0
[ 79.587661][ T5716] __put_partials+0x15e/0x1b0
[ 79.592359][ T5716] put_cpu_partial+0x17c/0x250
[ 79.597138][ T5716] __slab_free+0x290/0x380
[ 79.601646][ T5716] qlist_free_all+0x9a/0x140
[ 79.606255][ T5716] kasan_quarantine_reduce+0x14f/0x170
[ 79.611827][ T5716] __kasan_slab_alloc+0x23/0x60
[ 79.616694][ T5716] __kmalloc_cache_noprof+0x1d4/0x360
[ 79.622108][ T5716] kernfs_fop_open+0x3e0/0xd10
[ 79.627018][ T5716] do_dentry_open+0xdea/0x1960
[ 79.632080][ T5716] vfs_open+0x3b/0x370
[ 79.636168][ T5716] path_openat+0x2c70/0x3580
[ 79.640868][ T5716] do_filp_open+0x27f/0x4e0
[ 79.645410][ T5716] do_sys_openat2+0x13e/0x1d0
[ 79.650118][ T5716] __x64_sys_openat+0x247/0x2a0
[ 79.654984][ T5716] do_syscall_64+0x82/0x160
[ 79.659499][ T5716]
[ 79.661825][ T5716] Memory state around the buggy address:
[ 79.667471][ T5716] ffff88802e3f3b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 79.675648][ T5716] ffff88802e3f3b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 79.683733][ T5716] >ffff88802e3f3c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 79.691939][ T5716] ^
[ 79.696293][ T5716] ffff88802e3f3c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 79.704454][ T5716] ffff88802e3f3d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 79.712563][ T5716] ==================================================================
[ 79.721225][ T5716] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 79.728645][ T5716] CPU: 1 UID: 0 PID: 5716 Comm: syz-executor Not tainted 6.13.0-syzkaller #0
[ 79.737456][ T5716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 79.747551][ T5716] Call Trace:
[ 79.750848][ T5716]
[ 79.753785][ T5716] dump_stack_lvl+0x241/0x360
[ 79.758478][ T5716] ? __pfx_dump_stack_lvl+0x10/0x10
[ 79.763697][ T5716] ? __pfx__printk+0x10/0x10
[ 79.768299][ T5716] ? preempt_schedule+0xe1/0xf0
[ 79.773247][ T5716] ? vscnprintf+0x5d/0x90
[ 79.777603][ T5716] panic+0x349/0x880
[ 79.781528][ T5716] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 79.787699][ T5716] ? check_panic_on_warn+0x21/0xb0
[ 79.792870][ T5716] ? __pfx_panic+0x10/0x10
[ 79.797493][ T5716] ? _raw_spin_unlock_irqrestore+0x130/0x140
[ 79.803480][ T5716] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 79.809942][ T5716] ? print_report+0x502/0x550
[ 79.814639][ T5716] check_panic_on_warn+0x86/0xb0
[ 79.819725][ T5716] ? binder_add_device+0x5f/0xa0
[ 79.824706][ T5716] end_report+0x77/0x150
[ 79.829005][ T5716] kasan_report+0x154/0x180
[ 79.833527][ T5716] ? binder_add_device+0x5f/0xa0
[ 79.838543][ T5716] binder_add_device+0x5f/0xa0
[ 79.843597][ T5716] binderfs_binder_device_create+0x7bf/0x9c0
[ 79.849608][ T5716] binderfs_fill_super+0x944/0xd90
[ 79.854739][ T5716] ? __pfx_binderfs_fill_super+0x10/0x10
[ 79.860398][ T5716] ? shrinker_register+0x160/0x230
[ 79.865560][ T5716] ? sget_fc+0x909/0x9c0
[ 79.869829][ T5716] ? __pfx_set_anon_super_fc+0x10/0x10
[ 79.875398][ T5716] ? __pfx_binderfs_fill_super+0x10/0x10
[ 79.881050][ T5716] get_tree_nodev+0xb7/0x140
[ 79.886172][ T5716] vfs_get_tree+0x90/0x290
[ 79.890692][ T5716] do_new_mount+0x2be/0xb40
[ 79.895293][ T5716] ? __pfx_do_new_mount+0x10/0x10
[ 79.900417][ T5716] __se_sys_mount+0x2d6/0x3c0
[ 79.905115][ T5716] ? lockdep_hardirqs_on_prepare+0x43d/0x7a0
[ 79.911210][ T5716] ? __pfx___se_sys_mount+0x10/0x10
[ 79.916420][ T5716] ? __x64_sys_mount+0x20/0xc0
[ 79.921194][ T5716] do_syscall_64+0x82/0x160
[ 79.925718][ T5716] ? clear_bhb_loop+0x25/0x80
[ 79.930411][ T5716] ? clear_bhb_loop+0x25/0x80
[ 79.935131][ T5716] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 79.941037][ T5716] RIP: 0033:0x7fa95998e54a
[ 79.945462][ T5716] 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
[ 79.965276][ T5716] RSP: 002b:00007ffc87458f08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 79.973733][ T5716] RAX: ffffffffffffffda RBX: 00007fa959a0e663 RCX: 00007fa95998e54a
[ 79.981722][ T5716] RDX: 00007fa959a1dda7 RSI: 00007fa959a0e663 RDI: 00007fa959a1dda7
[ 79.989704][ T5716] RBP: 00007fa959a0e8ac R08: 0000000000000000 R09: 00000000000001ff
[ 79.997712][ T5716] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa9599eb1a8
[ 80.005788][ T5716] R13: 00007fa9599eb180 R14: 0000000000000009 R15: 0000000000000000
[ 80.013898][ T5716]
[ 80.017246][ T5716] Kernel Offset: disabled
[ 80.021802][ T5716] 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='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.22.7'
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-build2997881092=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at afe4eff51a
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=afe4eff51a06f6aa1ebb3d457836a3adec5ee82f -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250129-152923'" -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=\"afe4eff51a06f6aa1ebb3d457836a3adec5ee82f\"
go: downloading github.com/google/flatbuffers v25.1.24+incompatible
/usr/bin/ld: /tmp/ccim4dGy.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