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 ffff88807e252008 by task syz-executor/5836
CPU: 0 UID: 0 PID: 5836 Comm: syz-executor Not tainted 6.13.0-syzkaller-09030-g6d61a53dd6f5 #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+0x90/0x2b0 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+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3429b7fefa
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:00007ffccc417c38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f3429bf1b21 RCX: 00007f3429b7fefa
RDX: 00007f3429bfcfa8 RSI: 00007f3429bf1b21 RDI: 00007f3429bfcfa8
RBP: 00007f3429bf1d30 R08: 0000000000000000 R09: 00000000000001ff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3429bdc068
R13: 00007f3429bdc048 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5840:
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+0x98/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__kmalloc_cache_noprof+0x243/0x390 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+0x90/0x2b0 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+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 5840:
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+0x59/0x70 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+0x196/0x430 mm/slub.c:4757
evict+0x4e8/0x9a0 fs/inode.c:796
__dentry_kill+0x20d/0x630 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+0xc4/0x130 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/0x28e0 kernel/exit.c:938
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
get_signal+0x16b2/0x1750 kernel/signal.c:3036
arch_do_signal_or_restart+0x96/0x860 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+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff88807e252000
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff88807e252000, ffff88807e252200)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7e250
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 ffff88801ac41c80 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801ac41c80 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0001f89401 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 5198, tgid 5198 (udevd), ts 34563395219, free_ts 32068754309
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
prep_new_page mm/page_alloc.c:1559 [inline]
get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3477
__alloc_frozen_pages_noprof+0x292/0x710 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+0xc27/0x14a0 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+0x27b/0x390 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+0xdec/0x1960 fs/open.c:955
vfs_open+0x3b/0x370 fs/open.c:1085
do_open fs/namei.c:3828 [inline]
path_openat+0x2c74/0x3580 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+0xf3/0x230 arch/x86/entry/common.c:83
page last free pid 5208 tgid 5208 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_frozen_pages+0xe04/0x10e0 mm/page_alloc.c:2660
__slab_free+0x2c2/0x380 mm/slub.c:4520
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+0x23/0x80 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]
kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4171
getname_flags+0xb7/0x540 fs/namei.c:139
user_path_at+0x24/0x60 fs/namei.c:3069
do_fchmodat fs/open.c:688 [inline]
__do_sys_chmod fs/open.c:714 [inline]
__se_sys_chmod fs/open.c:712 [inline]
__x64_sys_chmod+0xd5/0x1a0 fs/open.c:712
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffff88807e251f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88807e251f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88807e252000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88807e252080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88807e252100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.0.135' (ED25519) to the list of known hosts.
2025/01/28 06:58:17 ignoring optional flag "sandboxArg"="0"
2025/01/28 06:58:18 parsed 1 programs
[ 63.874068][ T5822] cgroup: Unknown subsys name 'net'
[ 64.008539][ T5822] cgroup: Unknown subsys name 'cpuset'
[ 64.016954][ T5822] cgroup: Unknown subsys name 'rlimit'
[ 65.280524][ T5822] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 67.777205][ T5842] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 67.803892][ T5842] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 67.815653][ T5842] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 67.823600][ T5842] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 67.831347][ T5842] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[ 67.838855][ T5842] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 68.008368][ T5836] ==================================================================
[ 68.016568][ T5836] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[ 68.024328][ T5836] Write of size 8 at addr ffff88807e252008 by task syz-executor/5836
[ 68.032412][ T5836]
[ 68.034773][ T5836] CPU: 0 UID: 0 PID: 5836 Comm: syz-executor Not tainted 6.13.0-syzkaller-09030-g6d61a53dd6f5 #0
[ 68.034794][ T5836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 68.034807][ T5836] Call Trace:
[ 68.034814][ T5836]
[ 68.034821][ T5836] dump_stack_lvl+0x241/0x360
[ 68.034842][ T5836] ? __pfx_dump_stack_lvl+0x10/0x10
[ 68.034856][ T5836] ? __pfx__printk+0x10/0x10
[ 68.034877][ T5836] ? _printk+0xd5/0x120
[ 68.034896][ T5836] ? __virt_addr_valid+0x183/0x530
[ 68.034917][ T5836] ? __virt_addr_valid+0x183/0x530
[ 68.034935][ T5836] print_report+0x169/0x550
[ 68.034951][ T5836] ? __virt_addr_valid+0x183/0x530
[ 68.034968][ T5836] ? __virt_addr_valid+0x183/0x530
[ 68.034986][ T5836] ? __virt_addr_valid+0x45f/0x530
[ 68.035004][ T5836] ? __phys_addr+0xba/0x170
[ 68.035022][ T5836] ? binder_add_device+0x5f/0xa0
[ 68.035041][ T5836] kasan_report+0x143/0x180
[ 68.035058][ T5836] ? binder_add_device+0x5f/0xa0
[ 68.035079][ T5836] binder_add_device+0x5f/0xa0
[ 68.035094][ T5836] binderfs_binder_device_create+0x7bf/0x9c0
[ 68.035113][ T5836] binderfs_fill_super+0x944/0xd90
[ 68.035132][ T5836] ? __pfx_binderfs_fill_super+0x10/0x10
[ 68.035157][ T5836] ? shrinker_register+0x160/0x230
[ 68.035179][ T5836] ? sget_fc+0x909/0x9c0
[ 68.035200][ T5836] ? __pfx_set_anon_super_fc+0x10/0x10
[ 68.035214][ T5836] ? __pfx_binderfs_fill_super+0x10/0x10
[ 68.035232][ T5836] get_tree_nodev+0xb7/0x140
[ 68.035247][ T5836] vfs_get_tree+0x90/0x2b0
[ 68.035263][ T5836] do_new_mount+0x2be/0xb40
[ 68.035281][ T5836] ? __pfx_do_new_mount+0x10/0x10
[ 68.035300][ T5836] __se_sys_mount+0x2d6/0x3c0
[ 68.035318][ T5836] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 68.035337][ T5836] ? __pfx___se_sys_mount+0x10/0x10
[ 68.035355][ T5836] ? do_syscall_64+0x100/0x230
[ 68.035376][ T5836] ? __x64_sys_mount+0x20/0xc0
[ 68.035394][ T5836] do_syscall_64+0xf3/0x230
[ 68.035415][ T5836] ? clear_bhb_loop+0x35/0x90
[ 68.035436][ T5836] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.035455][ T5836] RIP: 0033:0x7f3429b7fefa
[ 68.035478][ T5836] 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
[ 68.035491][ T5836] RSP: 002b:00007ffccc417c38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 68.035509][ T5836] RAX: ffffffffffffffda RBX: 00007f3429bf1b21 RCX: 00007f3429b7fefa
[ 68.035521][ T5836] RDX: 00007f3429bfcfa8 RSI: 00007f3429bf1b21 RDI: 00007f3429bfcfa8
[ 68.035532][ T5836] RBP: 00007f3429bf1d30 R08: 0000000000000000 R09: 00000000000001ff
[ 68.035543][ T5836] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3429bdc068
[ 68.035553][ T5836] R13: 00007f3429bdc048 R14: 0000000000000009 R15: 0000000000000000
[ 68.035569][ T5836]
[ 68.035575][ T5836]
[ 68.308002][ T5836] Allocated by task 5840:
[ 68.312323][ T5836] kasan_save_track+0x3f/0x80
[ 68.317001][ T5836] __kasan_kmalloc+0x98/0xb0
[ 68.321581][ T5836] __kmalloc_cache_noprof+0x243/0x390
[ 68.326941][ T5836] binderfs_binder_device_create+0x16c/0x9c0
[ 68.332912][ T5836] binderfs_fill_super+0x944/0xd90
[ 68.338053][ T5836] get_tree_nodev+0xb7/0x140
[ 68.342667][ T5836] vfs_get_tree+0x90/0x2b0
[ 68.347096][ T5836] do_new_mount+0x2be/0xb40
[ 68.351591][ T5836] __se_sys_mount+0x2d6/0x3c0
[ 68.356263][ T5836] do_syscall_64+0xf3/0x230
[ 68.360873][ T5836] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.366774][ T5836]
[ 68.369112][ T5836] Freed by task 5840:
[ 68.373084][ T5836] kasan_save_track+0x3f/0x80
[ 68.377753][ T5836] kasan_save_free_info+0x40/0x50
[ 68.382767][ T5836] __kasan_slab_free+0x59/0x70
[ 68.387580][ T5836] kfree+0x196/0x430
[ 68.391475][ T5836] evict+0x4e8/0x9a0
[ 68.395365][ T5836] __dentry_kill+0x20d/0x630
[ 68.400032][ T5836] shrink_kill+0xa9/0x2c0
[ 68.404349][ T5836] shrink_dentry_list+0x2c0/0x5b0
[ 68.409362][ T5836] shrink_dcache_parent+0xcb/0x3b0
[ 68.414471][ T5836] do_one_tree+0x23/0xe0
[ 68.418706][ T5836] shrink_dcache_for_umount+0xb4/0x180
[ 68.424166][ T5836] generic_shutdown_super+0x6a/0x2d0
[ 68.429441][ T5836] kill_litter_super+0x76/0xb0
[ 68.434195][ T5836] binderfs_kill_super+0x44/0x90
[ 68.439222][ T5836] deactivate_locked_super+0xc4/0x130
[ 68.444709][ T5836] cleanup_mnt+0x41f/0x4b0
[ 68.449138][ T5836] task_work_run+0x24f/0x310
[ 68.453904][ T5836] do_exit+0xa2a/0x28e0
[ 68.458063][ T5836] do_group_exit+0x207/0x2c0
[ 68.462641][ T5836] get_signal+0x16b2/0x1750
[ 68.467145][ T5836] arch_do_signal_or_restart+0x96/0x860
[ 68.472685][ T5836] syscall_exit_to_user_mode+0xce/0x340
[ 68.478317][ T5836] do_syscall_64+0x100/0x230
[ 68.482901][ T5836] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.489149][ T5836]
[ 68.491490][ T5836] The buggy address belongs to the object at ffff88807e252000
[ 68.491490][ T5836] which belongs to the cache kmalloc-512 of size 512
[ 68.505532][ T5836] The buggy address is located 8 bytes inside of
[ 68.505532][ T5836] freed 512-byte region [ffff88807e252000, ffff88807e252200)
[ 68.519149][ T5836]
[ 68.521464][ T5836] The buggy address belongs to the physical page:
[ 68.527867][ T5836] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7e250
[ 68.536874][ T5836] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 68.545386][ T5836] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 68.552932][ T5836] page_type: f5(slab)
[ 68.556915][ T5836] raw: 00fff00000000040 ffff88801ac41c80 dead000000000100 dead000000000122
[ 68.565488][ T5836] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 68.574149][ T5836] head: 00fff00000000040 ffff88801ac41c80 dead000000000100 dead000000000122
[ 68.582839][ T5836] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 68.591511][ T5836] head: 00fff00000000002 ffffea0001f89401 ffffffffffffffff 0000000000000000
[ 68.600167][ T5836] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 68.608909][ T5836] page dumped because: kasan: bad access detected
[ 68.615315][ T5836] page_owner tracks the page as allocated
[ 68.621024][ T5836] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5198, tgid 5198 (udevd), ts 34563395219, free_ts 32068754309
[ 68.641860][ T5836] post_alloc_hook+0x1f4/0x240
[ 68.646621][ T5836] get_page_from_freelist+0x3651/0x37a0
[ 68.652162][ T5836] __alloc_frozen_pages_noprof+0x292/0x710
[ 68.657954][ T5836] alloc_pages_mpol+0x311/0x660
[ 68.662830][ T5836] allocate_slab+0x8f/0x3a0
[ 68.667318][ T5836] ___slab_alloc+0xc27/0x14a0
[ 68.671984][ T5836] __slab_alloc+0x58/0xa0
[ 68.676298][ T5836] __kmalloc_cache_noprof+0x27b/0x390
[ 68.681656][ T5836] kernfs_fop_open+0x3e0/0xd10
[ 68.686407][ T5836] do_dentry_open+0xdec/0x1960
[ 68.691502][ T5836] vfs_open+0x3b/0x370
[ 68.695662][ T5836] path_openat+0x2c74/0x3580
[ 68.700244][ T5836] do_filp_open+0x27f/0x4e0
[ 68.704734][ T5836] do_sys_openat2+0x13e/0x1d0
[ 68.709399][ T5836] __x64_sys_openat+0x247/0x2a0
[ 68.714233][ T5836] do_syscall_64+0xf3/0x230
[ 68.718732][ T5836] page last free pid 5208 tgid 5208 stack trace:
[ 68.725051][ T5836] free_frozen_pages+0xe04/0x10e0
[ 68.730110][ T5836] __slab_free+0x2c2/0x380
[ 68.734521][ T5836] qlist_free_all+0x9a/0x140
[ 68.739096][ T5836] kasan_quarantine_reduce+0x14f/0x170
[ 68.744569][ T5836] __kasan_slab_alloc+0x23/0x80
[ 68.749408][ T5836] kmem_cache_alloc_noprof+0x1d9/0x380
[ 68.754854][ T5836] getname_flags+0xb7/0x540
[ 68.759350][ T5836] user_path_at+0x24/0x60
[ 68.763770][ T5836] __x64_sys_chmod+0xd5/0x1a0
[ 68.768436][ T5836] do_syscall_64+0xf3/0x230
[ 68.772934][ T5836] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.778901][ T5836]
[ 68.781209][ T5836] Memory state around the buggy address:
[ 68.786820][ T5836] ffff88807e251f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 68.794869][ T5836] ffff88807e251f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 68.802910][ T5836] >ffff88807e252000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.810952][ T5836] ^
[ 68.815261][ T5836] ffff88807e252080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.823305][ T5836] ffff88807e252100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.831439][ T5836] ==================================================================
[ 68.842265][ T5836] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 68.849508][ T5836] CPU: 0 UID: 0 PID: 5836 Comm: syz-executor Not tainted 6.13.0-syzkaller-09030-g6d61a53dd6f5 #0
[ 68.860021][ T5836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 68.870099][ T5836] Call Trace:
[ 68.873394][ T5836]
[ 68.876338][ T5836] dump_stack_lvl+0x241/0x360
[ 68.881115][ T5836] ? __pfx_dump_stack_lvl+0x10/0x10
[ 68.886324][ T5836] ? __pfx__printk+0x10/0x10
[ 68.890924][ T5836] ? preempt_schedule+0xe1/0xf0
[ 68.895861][ T5836] ? vscnprintf+0x5d/0x90
[ 68.900179][ T5836] panic+0x349/0x880
[ 68.904072][ T5836] ? check_panic_on_warn+0x21/0xb0
[ 68.909175][ T5836] ? __pfx_panic+0x10/0x10
[ 68.913587][ T5836] ? _raw_spin_unlock_irqrestore+0x130/0x140
[ 68.919554][ T5836] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 68.925869][ T5836] ? print_report+0x502/0x550
[ 68.930626][ T5836] check_panic_on_warn+0x86/0xb0
[ 68.935552][ T5836] ? binder_add_device+0x5f/0xa0
[ 68.940513][ T5836] end_report+0x77/0x160
[ 68.944751][ T5836] kasan_report+0x154/0x180
[ 68.949330][ T5836] ? binder_add_device+0x5f/0xa0
[ 68.954260][ T5836] binder_add_device+0x5f/0xa0
[ 68.959015][ T5836] binderfs_binder_device_create+0x7bf/0x9c0
[ 68.964988][ T5836] binderfs_fill_super+0x944/0xd90
[ 68.970094][ T5836] ? __pfx_binderfs_fill_super+0x10/0x10
[ 68.975769][ T5836] ? shrinker_register+0x160/0x230
[ 68.980874][ T5836] ? sget_fc+0x909/0x9c0
[ 68.985110][ T5836] ? __pfx_set_anon_super_fc+0x10/0x10
[ 68.990554][ T5836] ? __pfx_binderfs_fill_super+0x10/0x10
[ 68.996177][ T5836] get_tree_nodev+0xb7/0x140
[ 69.000778][ T5836] vfs_get_tree+0x90/0x2b0
[ 69.005182][ T5836] do_new_mount+0x2be/0xb40
[ 69.009714][ T5836] ? __pfx_do_new_mount+0x10/0x10
[ 69.014743][ T5836] __se_sys_mount+0x2d6/0x3c0
[ 69.019408][ T5836] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 69.025388][ T5836] ? __pfx___se_sys_mount+0x10/0x10
[ 69.030755][ T5836] ? do_syscall_64+0x100/0x230
[ 69.035511][ T5836] ? __x64_sys_mount+0x20/0xc0
[ 69.040355][ T5836] do_syscall_64+0xf3/0x230
[ 69.044864][ T5836] ? clear_bhb_loop+0x35/0x90
[ 69.049540][ T5836] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.055448][ T5836] RIP: 0033:0x7f3429b7fefa
[ 69.059991][ T5836] 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
[ 69.079588][ T5836] RSP: 002b:00007ffccc417c38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 69.088080][ T5836] RAX: ffffffffffffffda RBX: 00007f3429bf1b21 RCX: 00007f3429b7fefa
[ 69.096039][ T5836] RDX: 00007f3429bfcfa8 RSI: 00007f3429bf1b21 RDI: 00007f3429bfcfa8
[ 69.104082][ T5836] RBP: 00007f3429bf1d30 R08: 0000000000000000 R09: 00000000000001ff
[ 69.112037][ T5836] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3429bdc068
[ 69.120009][ T5836] R13: 00007f3429bdc048 R14: 0000000000000009 R15: 0000000000000000
[ 69.127987][ T5836]
[ 69.131347][ T5836] Kernel Offset: disabled
[ 69.135727][ T5836] 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-build302465454=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at 7d02db5adb
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
go fmt ./sys/... >/dev/null
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=7d02db5adbb376babbbd3199f8c530e468292727 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241119-152346'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -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 -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"7d02db5adbb376babbbd3199f8c530e468292727\"
/usr/bin/ld: /tmp/ccnloeYt.o: in function `test_cover_filter()':
executor.cc:(.text+0x1426b): warning: the use of `tempnam' is dangerous, better use `mkstemp'
/usr/bin/ld: /tmp/ccnloeYt.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