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 ffff8880310ea408 by task syz-executor/5848
CPU: 0 UID: 0 PID: 5848 Comm: syz-executor Not tainted 6.13.0-next-20250121-syzkaller-gf066b5a6c7a0-dirty #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: 0033:0x7f7e4a781fea
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:00007f7e4aa6ff68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f7e4a7f3d49 RCX: 00007f7e4a781fea
RDX: 00007f7e4a7ff310 RSI: 00007f7e4a7f3d49 RDI: 00007f7e4a7ff310
RBP: 00007f7e4a7f3f58 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7e4a7de068
R13: 00007f7e4a7de048 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5842:
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 5842:
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:637
shrink_kill+0xa9/0x2c0 fs/dcache.c:1082
shrink_dentry_list+0x2c0/0x5b0 fs/dcache.c:1109
shrink_dcache_parent+0xcb/0x3b0
do_one_tree+0x23/0xe0 fs/dcache.c:1572
shrink_dcache_for_umount+0xb4/0x180 fs/dcache.c:1589
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 ffff8880310ea400
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff8880310ea400, ffff8880310ea600)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x310e8
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 ffff88801ac41c80 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801ac41c80 0000000000000000 dead000000000001
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0000c43a01 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 5210, tgid 5210 (udevadm), ts 19571227077, free_ts 19566777335
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+0x365c/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:3830 [inline]
path_openat+0x2c81/0x3590 fs/namei.c:3989
do_filp_open+0x27f/0x4e0 fs/namei.c:4016
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 5210 tgid 5210 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
discard_slab mm/slub.c:2684 [inline]
__put_partials+0x160/0x1c0 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+0x23/0x80 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]
__do_kmalloc_node mm/slub.c:4293 [inline]
__kmalloc_noprof+0x236/0x4c0 mm/slub.c:4306
kmalloc_noprof include/linux/slab.h:905 [inline]
kernfs_fop_write_iter+0x15a/0x500 fs/kernfs/file.c:311
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xacf/0xd10 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
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:
ffff8880310ea300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8880310ea380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880310ea400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880310ea480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880310ea500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.1.109' (ED25519) to the list of known hosts.
2025/01/21 11:07:47 ignoring optional flag "sandboxArg"="0"
2025/01/21 11:07:47 parsed 1 programs
[ 65.201847][ T5832] cgroup: Unknown subsys name 'net'
[ 65.306903][ T5832] cgroup: Unknown subsys name 'cpuset'
[ 65.314527][ T5832] cgroup: Unknown subsys name 'rlimit'
[ 66.567205][ T5832] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 69.053884][ T5842] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality.
[ 69.191823][ T5848] ==================================================================
[ 69.191848][ T5848] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[ 69.191890][ T5848] Write of size 8 at addr ffff8880310ea408 by task syz-executor/5848
[ 69.191904][ T5848]
[ 69.191925][ T5848] CPU: 0 UID: 0 PID: 5848 Comm: syz-executor Not tainted 6.13.0-next-20250121-syzkaller-gf066b5a6c7a0-dirty #0
[ 69.191936][ T5848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 69.191945][ T5848] Call Trace:
[ 69.191949][ T5848]
[ 69.191954][ T5848] dump_stack_lvl+0x241/0x360
[ 69.191967][ T5848] ? __pfx_dump_stack_lvl+0x10/0x10
[ 69.191977][ T5848] ? __pfx__printk+0x10/0x10
[ 69.191986][ T5848] ? _printk+0xd5/0x120
[ 69.191994][ T5848] ? __virt_addr_valid+0x183/0x530
[ 69.192008][ T5848] ? __virt_addr_valid+0x183/0x530
[ 69.192021][ T5848] print_report+0x169/0x550
[ 69.192035][ T5848] ? __virt_addr_valid+0x183/0x530
[ 69.192048][ T5848] ? __virt_addr_valid+0x183/0x530
[ 69.192060][ T5848] ? __virt_addr_valid+0x45f/0x530
[ 69.192072][ T5848] ? __phys_addr+0xba/0x170
[ 69.192085][ T5848] ? binder_add_device+0x5f/0xa0
[ 69.192097][ T5848] kasan_report+0x143/0x180
[ 69.192111][ T5848] ? binder_add_device+0x5f/0xa0
[ 69.192125][ T5848] binder_add_device+0x5f/0xa0
[ 69.192137][ T5848] binderfs_binder_device_create+0x7bf/0x9c0
[ 69.192152][ T5848] binderfs_fill_super+0x944/0xd90
[ 69.192165][ T5848] ? __pfx_binderfs_fill_super+0x10/0x10
[ 69.192181][ T5848] ? shrinker_register+0x160/0x230
[ 69.192193][ T5848] ? sget_fc+0x909/0x9c0
[ 69.192205][ T5848] ? __pfx_set_anon_super_fc+0x10/0x10
[ 69.192216][ T5848] ? __pfx_binderfs_fill_super+0x10/0x10
[ 69.192228][ T5848] get_tree_nodev+0xb7/0x140
[ 69.192240][ T5848] vfs_get_tree+0x90/0x2b0
[ 69.192252][ T5848] do_new_mount+0x2be/0xb40
[ 69.192263][ T5848] ? __pfx_do_new_mount+0x10/0x10
[ 69.192273][ T5848] __se_sys_mount+0x2d6/0x3c0
[ 69.192282][ T5848] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 69.192296][ T5848] ? __pfx___se_sys_mount+0x10/0x10
[ 69.192305][ T5848] ? do_syscall_64+0x100/0x230
[ 69.192315][ T5848] ? __x64_sys_mount+0x20/0xc0
[ 69.192324][ T5848] do_syscall_64+0xf3/0x230
[ 69.192333][ T5848] ? clear_bhb_loop+0x35/0x90
[ 69.192347][ T5848] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.192363][ T5848] RIP: 0033:0x7f7e4a781fea
[ 69.192374][ T5848] 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
[ 69.192382][ T5848] RSP: 002b:00007f7e4aa6ff68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 69.192393][ T5848] RAX: ffffffffffffffda RBX: 00007f7e4a7f3d49 RCX: 00007f7e4a781fea
[ 69.192400][ T5848] RDX: 00007f7e4a7ff310 RSI: 00007f7e4a7f3d49 RDI: 00007f7e4a7ff310
[ 69.192406][ T5848] RBP: 00007f7e4a7f3f58 R08: 0000000000000000 R09: 0000000000000100
[ 69.192418][ T5848] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7e4a7de068
[ 69.192424][ T5848] R13: 00007f7e4a7de048 R14: 0000000000000009 R15: 0000000000000000
[ 69.192432][ T5848]
[ 69.192436][ T5848]
[ 69.192611][ T5848] Allocated by task 5842:
[ 69.192622][ T5848] kasan_save_track+0x3f/0x80
[ 69.192639][ T5848] __kasan_kmalloc+0x98/0xb0
[ 69.192656][ T5848] __kmalloc_cache_noprof+0x243/0x390
[ 69.192674][ T5848] binderfs_binder_device_create+0x16c/0x9c0
[ 69.192692][ T5848] binderfs_fill_super+0x944/0xd90
[ 69.192708][ T5848] get_tree_nodev+0xb7/0x140
[ 69.192724][ T5848] vfs_get_tree+0x90/0x2b0
[ 69.192740][ T5848] do_new_mount+0x2be/0xb40
[ 69.192753][ T5848] __se_sys_mount+0x2d6/0x3c0
[ 69.192766][ T5848] do_syscall_64+0xf3/0x230
[ 69.192780][ T5848] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.192797][ T5848]
[ 69.192804][ T5848] Freed by task 5842:
[ 69.192814][ T5848] kasan_save_track+0x3f/0x80
[ 69.192830][ T5848] kasan_save_free_info+0x40/0x50
[ 69.192845][ T5848] __kasan_slab_free+0x59/0x70
[ 69.192862][ T5848] kfree+0x196/0x430
[ 69.192875][ T5848] evict+0x4e8/0x9a0
[ 69.192891][ T5848] __dentry_kill+0x20d/0x630
[ 69.192905][ T5848] shrink_kill+0xa9/0x2c0
[ 69.192919][ T5848] shrink_dentry_list+0x2c0/0x5b0
[ 69.192934][ T5848] shrink_dcache_parent+0xcb/0x3b0
[ 69.192949][ T5848] do_one_tree+0x23/0xe0
[ 69.192964][ T5848] shrink_dcache_for_umount+0xb4/0x180
[ 69.192979][ T5848] generic_shutdown_super+0x6a/0x2d0
[ 69.192995][ T5848] kill_litter_super+0x76/0xb0
[ 69.193010][ T5848] binderfs_kill_super+0x44/0x90
[ 69.193026][ T5848] deactivate_locked_super+0xc4/0x130
[ 69.193042][ T5848] cleanup_mnt+0x41f/0x4b0
[ 69.193056][ T5848] task_work_run+0x24f/0x310
[ 69.193075][ T5848] do_exit+0xa2a/0x28e0
[ 69.193091][ T5848] do_group_exit+0x207/0x2c0
[ 69.193107][ T5848] get_signal+0x16b2/0x1750
[ 69.193120][ T5848] arch_do_signal_or_restart+0x96/0x860
[ 69.193136][ T5848] syscall_exit_to_user_mode+0xce/0x340
[ 69.193150][ T5848] do_syscall_64+0x100/0x230
[ 69.193164][ T5848] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.193181][ T5848]
[ 69.193188][ T5848] The buggy address belongs to the object at ffff8880310ea400
[ 69.193188][ T5848] which belongs to the cache kmalloc-512 of size 512
[ 69.193202][ T5848] The buggy address is located 8 bytes inside of
[ 69.193202][ T5848] freed 512-byte region [ffff8880310ea400, ffff8880310ea600)
[ 69.193216][ T5848]
[ 69.193224][ T5848] The buggy address belongs to the physical page:
[ 69.193234][ T5848] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x310e8
[ 69.193254][ T5848] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 69.193267][ T5848] anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 69.193285][ T5848] page_type: f5(slab)
[ 69.193299][ T5848] raw: 00fff00000000040 ffff88801ac41c80 0000000000000000 dead000000000001
[ 69.193322][ T5848] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 69.193343][ T5848] head: 00fff00000000040 ffff88801ac41c80 0000000000000000 dead000000000001
[ 69.193362][ T5848] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 69.193383][ T5848] head: 00fff00000000002 ffffea0000c43a01 ffffffffffffffff 0000000000000000
[ 69.193403][ T5848] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 69.193425][ T5848] page dumped because: kasan: bad access detected
[ 69.193447][ T5848] page_owner tracks the page as allocated
[ 69.193458][ T5848] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5210, tgid 5210 (udevadm), ts 19571227077, free_ts 19566777335
[ 69.193481][ T5848] post_alloc_hook+0x1f4/0x240
[ 69.193498][ T5848] get_page_from_freelist+0x365c/0x37a0
[ 69.193515][ T5848] __alloc_frozen_pages_noprof+0x292/0x710
[ 69.193532][ T5848] alloc_pages_mpol+0x311/0x660
[ 69.193545][ T5848] allocate_slab+0x8f/0x3a0
[ 69.193562][ T5848] ___slab_alloc+0xc27/0x14a0
[ 69.193576][ T5848] __slab_alloc+0x58/0xa0
[ 69.193591][ T5848] __kmalloc_cache_noprof+0x27b/0x390
[ 69.193605][ T5848] kernfs_fop_open+0x3e0/0xd10
[ 69.193621][ T5848] do_dentry_open+0xdec/0x1960
[ 69.193635][ T5848] vfs_open+0x3b/0x370
[ 69.193647][ T5848] path_openat+0x2c81/0x3590
[ 69.193663][ T5848] do_filp_open+0x27f/0x4e0
[ 69.193679][ T5848] do_sys_openat2+0x13e/0x1d0
[ 69.193692][ T5848] __x64_sys_openat+0x247/0x2a0
[ 69.193706][ T5848] do_syscall_64+0xf3/0x230
[ 69.193720][ T5848] page last free pid 5210 tgid 5210 stack trace:
[ 69.193731][ T5848] free_frozen_pages+0xe0d/0x10e0
[ 69.193746][ T5848] __put_partials+0x160/0x1c0
[ 69.193762][ T5848] put_cpu_partial+0x17c/0x250
[ 69.193777][ T5848] __slab_free+0x290/0x380
[ 69.193793][ T5848] qlist_free_all+0x9a/0x140
[ 69.193809][ T5848] kasan_quarantine_reduce+0x14f/0x170
[ 69.193826][ T5848] __kasan_slab_alloc+0x23/0x80
[ 69.193843][ T5848] __kmalloc_noprof+0x236/0x4c0
[ 69.193857][ T5848] kernfs_fop_write_iter+0x15a/0x500
[ 69.193872][ T5848] vfs_write+0xacf/0xd10
[ 69.193887][ T5848] ksys_write+0x18f/0x2b0
[ 69.193902][ T5848] do_syscall_64+0xf3/0x230
[ 69.193916][ T5848] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.193933][ T5848]
[ 69.193941][ T5848] Memory state around the buggy address:
[ 69.193951][ T5848] ffff8880310ea300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 69.193963][ T5848] ffff8880310ea380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 69.193974][ T5848] >ffff8880310ea400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 69.193984][ T5848] ^
[ 69.193994][ T5848] ffff8880310ea480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 69.194006][ T5848] ffff8880310ea500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 69.194015][ T5848] ==================================================================
[ 69.194096][ T5848] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 70.041303][ T5848] CPU: 0 UID: 0 PID: 5848 Comm: syz-executor Not tainted 6.13.0-next-20250121-syzkaller-gf066b5a6c7a0-dirty #0
[ 70.053027][ T5848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 70.063077][ T5848] Call Trace:
[ 70.066346][ T5848]
[ 70.069262][ T5848] dump_stack_lvl+0x241/0x360
[ 70.073927][ T5848] ? __pfx_dump_stack_lvl+0x10/0x10
[ 70.079108][ T5848] ? __pfx__printk+0x10/0x10
[ 70.083678][ T5848] ? lock_release+0xbf/0xa30
[ 70.088266][ T5848] ? vscnprintf+0x5d/0x90
[ 70.092587][ T5848] panic+0x349/0x880
[ 70.096464][ T5848] ? check_panic_on_warn+0x21/0xb0
[ 70.101562][ T5848] ? __pfx_panic+0x10/0x10
[ 70.105968][ T5848] ? mark_lock+0x9a/0x360
[ 70.110286][ T5848] ? _raw_spin_unlock_irqrestore+0xd8/0x140
[ 70.116168][ T5848] ? _raw_spin_unlock_irqrestore+0xdd/0x140
[ 70.122047][ T5848] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 70.128383][ T5848] ? print_report+0x502/0x550
[ 70.133050][ T5848] check_panic_on_warn+0x86/0xb0
[ 70.137974][ T5848] ? binder_add_device+0x5f/0xa0
[ 70.142903][ T5848] end_report+0x77/0x160
[ 70.147130][ T5848] kasan_report+0x154/0x180
[ 70.151624][ T5848] ? binder_add_device+0x5f/0xa0
[ 70.156989][ T5848] binder_add_device+0x5f/0xa0
[ 70.161743][ T5848] binderfs_binder_device_create+0x7bf/0x9c0
[ 70.167715][ T5848] binderfs_fill_super+0x944/0xd90
[ 70.172821][ T5848] ? __pfx_binderfs_fill_super+0x10/0x10
[ 70.178449][ T5848] ? shrinker_register+0x160/0x230
[ 70.183555][ T5848] ? sget_fc+0x909/0x9c0
[ 70.187813][ T5848] ? __pfx_set_anon_super_fc+0x10/0x10
[ 70.193278][ T5848] ? __pfx_binderfs_fill_super+0x10/0x10
[ 70.198999][ T5848] get_tree_nodev+0xb7/0x140
[ 70.203589][ T5848] vfs_get_tree+0x90/0x2b0
[ 70.207996][ T5848] do_new_mount+0x2be/0xb40
[ 70.212483][ T5848] ? __pfx_do_new_mount+0x10/0x10
[ 70.217491][ T5848] __se_sys_mount+0x2d6/0x3c0
[ 70.222152][ T5848] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 70.228119][ T5848] ? __pfx___se_sys_mount+0x10/0x10
[ 70.233303][ T5848] ? do_syscall_64+0x100/0x230
[ 70.238059][ T5848] ? __x64_sys_mount+0x20/0xc0
[ 70.242804][ T5848] do_syscall_64+0xf3/0x230
[ 70.247292][ T5848] ? clear_bhb_loop+0x35/0x90
[ 70.252005][ T5848] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 70.257909][ T5848] RIP: 0033:0x7f7e4a781fea
[ 70.262317][ T5848] 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
[ 70.281909][ T5848] RSP: 002b:00007f7e4aa6ff68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 70.290318][ T5848] RAX: ffffffffffffffda RBX: 00007f7e4a7f3d49 RCX: 00007f7e4a781fea
[ 70.298284][ T5848] RDX: 00007f7e4a7ff310 RSI: 00007f7e4a7f3d49 RDI: 00007f7e4a7ff310
[ 70.306328][ T5848] RBP: 00007f7e4a7f3f58 R08: 0000000000000000 R09: 0000000000000100
[ 70.314284][ T5848] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7e4a7de068
[ 70.322241][ T5848] R13: 00007f7e4a7de048 R14: 0000000000000009 R15: 0000000000000000
[ 70.330200][ T5848]
[ 70.333656][ T5848] Kernel Offset: disabled
[ 70.337971][ T5848] 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-build3117936407=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at 689146651c
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=689146651cb695ec7836080377ad32933a0b9bce -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241129-143606'" "-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=\"689146651cb695ec7836080377ad32933a0b9bce\"
/usr/bin/ld: /tmp/ccf8Q9O2.o: in function `test_cover_filter()':
executor.cc:(.text+0x14f8b): warning: the use of `tempnam' is dangerous, better use `mkstemp'
/usr/bin/ld: /tmp/ccf8Q9O2.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