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 ffff888029759408 by task syz-executor/5865
CPU: 1 UID: 0 PID: 5865 Comm: syz-executor Not tainted 6.13.0-next-20250124-syzkaller-10205-g5ffa57f6eece #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: 0033:0x7f6ebc3874ca
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:00007ffc2047db58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f6ebc401ecb RCX: 00007f6ebc3874ca
RDX: 00007f6ebc40ec27 RSI: 00007f6ebc401ecb RDI: 00007f6ebc40ec27
RBP: 00007f6ebc4020c3 R08: 0000000000000000 R09: 00000000000001ff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6ebc3e41c8
R13: 00007f6ebc3e41a8 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5849:
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 5849:
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 ffff888029759400
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff888029759400, ffff888029759600)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x29758
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 ffffea0000cd9e00 dead000000000002
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801ac41c80 ffffea0000cd9e00 dead000000000002
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0000a5d601 ffffffffffffffff 0000000000000000
head: ffff888000000004 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 5218, tgid 5218 (udevd), ts 34320484149, free_ts 33921409842
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 5214 tgid 5214 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]
kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4171
getname_flags+0xb7/0x540 fs/namei.c:139
do_sys_openat2+0xd2/0x1d0 fs/open.c:1421
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
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffff888029759300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888029759380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888029759400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888029759480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888029759500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.1.82' (ED25519) to the list of known hosts.
2025/01/27 20:35:42 ignoring optional flag "sandboxArg"="0"
2025/01/27 20:35:43 parsed 1 programs
[ 67.887255][ T5831] cgroup: Unknown subsys name 'net'
[ 68.021307][ T5831] cgroup: Unknown subsys name 'cpuset'
[ 68.030808][ T5831] cgroup: Unknown subsys name 'rlimit'
[ 69.351166][ T5831] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 71.753569][ T1298] ieee802154 phy0 wpan0: encryption failed: -22
[ 71.760251][ T1298] ieee802154 phy1 wpan1: encryption failed: -22
[ 72.074534][ T5845] 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.
[ 72.284121][ T54] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 72.292751][ T54] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 72.302569][ T54] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 72.312353][ T54] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 72.320814][ T54] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[ 72.328626][ T54] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 72.815951][ T5865] ==================================================================
[ 72.824065][ T5865] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[ 72.831839][ T5865] Write of size 8 at addr ffff888029759408 by task syz-executor/5865
[ 72.839930][ T5865]
[ 72.842286][ T5865] CPU: 1 UID: 0 PID: 5865 Comm: syz-executor Not tainted 6.13.0-next-20250124-syzkaller-10205-g5ffa57f6eece #0
[ 72.842306][ T5865] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 72.842320][ T5865] Call Trace:
[ 72.842327][ T5865]
[ 72.842334][ T5865] dump_stack_lvl+0x241/0x360
[ 72.842356][ T5865] ? __pfx_dump_stack_lvl+0x10/0x10
[ 72.842372][ T5865] ? __pfx__printk+0x10/0x10
[ 72.842388][ T5865] ? _printk+0xd5/0x120
[ 72.842402][ T5865] ? __virt_addr_valid+0x183/0x530
[ 72.842423][ T5865] ? __virt_addr_valid+0x183/0x530
[ 72.842443][ T5865] print_report+0x169/0x550
[ 72.842464][ T5865] ? __virt_addr_valid+0x183/0x530
[ 72.842482][ T5865] ? __virt_addr_valid+0x183/0x530
[ 72.842500][ T5865] ? __virt_addr_valid+0x45f/0x530
[ 72.842519][ T5865] ? __phys_addr+0xba/0x170
[ 72.842539][ T5865] ? binder_add_device+0x5f/0xa0
[ 72.842565][ T5865] kasan_report+0x143/0x180
[ 72.842586][ T5865] ? binder_add_device+0x5f/0xa0
[ 72.842609][ T5865] binder_add_device+0x5f/0xa0
[ 72.842629][ T5865] binderfs_binder_device_create+0x7bf/0x9c0
[ 72.842650][ T5865] binderfs_fill_super+0x944/0xd90
[ 72.842670][ T5865] ? __pfx_binderfs_fill_super+0x10/0x10
[ 72.842694][ T5865] ? shrinker_register+0x160/0x230
[ 72.842711][ T5865] ? sget_fc+0x909/0x9c0
[ 72.842728][ T5865] ? __pfx_set_anon_super_fc+0x10/0x10
[ 72.842745][ T5865] ? __pfx_binderfs_fill_super+0x10/0x10
[ 72.842763][ T5865] get_tree_nodev+0xb7/0x140
[ 72.842780][ T5865] vfs_get_tree+0x90/0x2b0
[ 72.842799][ T5865] do_new_mount+0x2be/0xb40
[ 72.842816][ T5865] ? __pfx_do_new_mount+0x10/0x10
[ 72.842832][ T5865] __se_sys_mount+0x2d6/0x3c0
[ 72.842845][ T5865] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 72.842864][ T5865] ? __pfx___se_sys_mount+0x10/0x10
[ 72.842879][ T5865] ? do_syscall_64+0x100/0x230
[ 72.842896][ T5865] ? __x64_sys_mount+0x20/0xc0
[ 72.842911][ T5865] do_syscall_64+0xf3/0x230
[ 72.842925][ T5865] ? clear_bhb_loop+0x35/0x90
[ 72.842945][ T5865] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 72.842969][ T5865] RIP: 0033:0x7f6ebc3874ca
[ 72.842993][ T5865] 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
[ 72.843005][ T5865] RSP: 002b:00007ffc2047db58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 72.843022][ T5865] RAX: ffffffffffffffda RBX: 00007f6ebc401ecb RCX: 00007f6ebc3874ca
[ 72.843032][ T5865] RDX: 00007f6ebc40ec27 RSI: 00007f6ebc401ecb RDI: 00007f6ebc40ec27
[ 72.843041][ T5865] RBP: 00007f6ebc4020c3 R08: 0000000000000000 R09: 00000000000001ff
[ 72.843050][ T5865] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6ebc3e41c8
[ 72.843058][ T5865] R13: 00007f6ebc3e41a8 R14: 0000000000000009 R15: 0000000000000000
[ 72.843073][ T5865]
[ 72.843078][ T5865]
[ 73.117437][ T5865] Allocated by task 5849:
[ 73.121769][ T5865] kasan_save_track+0x3f/0x80
[ 73.126457][ T5865] __kasan_kmalloc+0x98/0xb0
[ 73.131044][ T5865] __kmalloc_cache_noprof+0x243/0x390
[ 73.136400][ T5865] binderfs_binder_device_create+0x16c/0x9c0
[ 73.142370][ T5865] binderfs_fill_super+0x944/0xd90
[ 73.147471][ T5865] get_tree_nodev+0xb7/0x140
[ 73.152069][ T5865] vfs_get_tree+0x90/0x2b0
[ 73.156595][ T5865] do_new_mount+0x2be/0xb40
[ 73.161117][ T5865] __se_sys_mount+0x2d6/0x3c0
[ 73.165821][ T5865] do_syscall_64+0xf3/0x230
[ 73.170322][ T5865] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 73.176214][ T5865]
[ 73.178612][ T5865] Freed by task 5849:
[ 73.182617][ T5865] kasan_save_track+0x3f/0x80
[ 73.187292][ T5865] kasan_save_free_info+0x40/0x50
[ 73.192306][ T5865] __kasan_slab_free+0x59/0x70
[ 73.197070][ T5865] kfree+0x196/0x430
[ 73.200950][ T5865] evict+0x4e8/0x9a0
[ 73.204847][ T5865] __dentry_kill+0x20d/0x630
[ 73.209428][ T5865] shrink_kill+0xa9/0x2c0
[ 73.213744][ T5865] shrink_dentry_list+0x2c0/0x5b0
[ 73.218755][ T5865] shrink_dcache_parent+0xcb/0x3b0
[ 73.223857][ T5865] do_one_tree+0x23/0xe0
[ 73.228174][ T5865] shrink_dcache_for_umount+0xb4/0x180
[ 73.233620][ T5865] generic_shutdown_super+0x6a/0x2d0
[ 73.238896][ T5865] kill_litter_super+0x76/0xb0
[ 73.243648][ T5865] binderfs_kill_super+0x44/0x90
[ 73.248575][ T5865] deactivate_locked_super+0xc4/0x130
[ 73.253938][ T5865] cleanup_mnt+0x41f/0x4b0
[ 73.258344][ T5865] task_work_run+0x24f/0x310
[ 73.262920][ T5865] do_exit+0xa2a/0x28e0
[ 73.267063][ T5865] do_group_exit+0x207/0x2c0
[ 73.271639][ T5865] get_signal+0x16b2/0x1750
[ 73.276129][ T5865] arch_do_signal_or_restart+0x96/0x860
[ 73.281662][ T5865] syscall_exit_to_user_mode+0xce/0x340
[ 73.287224][ T5865] do_syscall_64+0x100/0x230
[ 73.291799][ T5865] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 73.297682][ T5865]
[ 73.300004][ T5865] The buggy address belongs to the object at ffff888029759400
[ 73.300004][ T5865] which belongs to the cache kmalloc-512 of size 512
[ 73.314047][ T5865] The buggy address is located 8 bytes inside of
[ 73.314047][ T5865] freed 512-byte region [ffff888029759400, ffff888029759600)
[ 73.327742][ T5865]
[ 73.330056][ T5865] The buggy address belongs to the physical page:
[ 73.336457][ T5865] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x29758
[ 73.345210][ T5865] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 73.353869][ T5865] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 73.361571][ T5865] page_type: f5(slab)
[ 73.365549][ T5865] raw: 00fff00000000040 ffff88801ac41c80 ffffea0000cd9e00 dead000000000002
[ 73.374121][ T5865] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 73.382691][ T5865] head: 00fff00000000040 ffff88801ac41c80 ffffea0000cd9e00 dead000000000002
[ 73.391354][ T5865] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 73.400019][ T5865] head: 00fff00000000002 ffffea0000a5d601 ffffffffffffffff 0000000000000000
[ 73.408675][ T5865] head: ffff888000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 73.417338][ T5865] page dumped because: kasan: bad access detected
[ 73.423833][ T5865] page_owner tracks the page as allocated
[ 73.429535][ T5865] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5218, tgid 5218 (udevd), ts 34320484149, free_ts 33921409842
[ 73.450300][ T5865] post_alloc_hook+0x1f4/0x240
[ 73.455068][ T5865] get_page_from_freelist+0x365c/0x37a0
[ 73.460605][ T5865] __alloc_frozen_pages_noprof+0x292/0x710
[ 73.466403][ T5865] alloc_pages_mpol+0x311/0x660
[ 73.471240][ T5865] allocate_slab+0x8f/0x3a0
[ 73.475825][ T5865] ___slab_alloc+0xc27/0x14a0
[ 73.480492][ T5865] __slab_alloc+0x58/0xa0
[ 73.484825][ T5865] __kmalloc_cache_noprof+0x27b/0x390
[ 73.490271][ T5865] kernfs_fop_open+0x3e0/0xd10
[ 73.495084][ T5865] do_dentry_open+0xdec/0x1960
[ 73.499940][ T5865] vfs_open+0x3b/0x370
[ 73.503999][ T5865] path_openat+0x2c81/0x3590
[ 73.508581][ T5865] do_filp_open+0x27f/0x4e0
[ 73.513071][ T5865] do_sys_openat2+0x13e/0x1d0
[ 73.517731][ T5865] __x64_sys_openat+0x247/0x2a0
[ 73.522568][ T5865] do_syscall_64+0xf3/0x230
[ 73.527058][ T5865] page last free pid 5214 tgid 5214 stack trace:
[ 73.533367][ T5865] free_frozen_pages+0xe0d/0x10e0
[ 73.538385][ T5865] __put_partials+0x160/0x1c0
[ 73.543052][ T5865] put_cpu_partial+0x17c/0x250
[ 73.547801][ T5865] __slab_free+0x290/0x380
[ 73.552205][ T5865] qlist_free_all+0x9a/0x140
[ 73.556871][ T5865] kasan_quarantine_reduce+0x14f/0x170
[ 73.562318][ T5865] __kasan_slab_alloc+0x23/0x80
[ 73.567157][ T5865] kmem_cache_alloc_noprof+0x1d9/0x380
[ 73.572602][ T5865] getname_flags+0xb7/0x540
[ 73.577098][ T5865] do_sys_openat2+0xd2/0x1d0
[ 73.581673][ T5865] __x64_sys_openat+0x247/0x2a0
[ 73.586524][ T5865] do_syscall_64+0xf3/0x230
[ 73.591098][ T5865] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 73.596986][ T5865]
[ 73.599295][ T5865] Memory state around the buggy address:
[ 73.604909][ T5865] ffff888029759300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 73.613359][ T5865] ffff888029759380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 73.621409][ T5865] >ffff888029759400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 73.629467][ T5865] ^
[ 73.634038][ T5865] ffff888029759480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 73.642291][ T5865] ffff888029759500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 73.650333][ T5865] ==================================================================
[ 73.678561][ T5865] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 73.685906][ T5865] CPU: 1 UID: 0 PID: 5865 Comm: syz-executor Not tainted 6.13.0-next-20250124-syzkaller-10205-g5ffa57f6eece #0
[ 73.697730][ T5865] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 73.707823][ T5865] Call Trace:
[ 73.711210][ T5865]
[ 73.714155][ T5865] dump_stack_lvl+0x241/0x360
[ 73.719030][ T5865] ? __pfx_dump_stack_lvl+0x10/0x10
[ 73.724255][ T5865] ? __pfx__printk+0x10/0x10
[ 73.728938][ T5865] ? preempt_schedule+0xe1/0xf0
[ 73.733824][ T5865] ? vscnprintf+0x5d/0x90
[ 73.738246][ T5865] panic+0x349/0x880
[ 73.742172][ T5865] ? check_panic_on_warn+0x21/0xb0
[ 73.747313][ T5865] ? __pfx_panic+0x10/0x10
[ 73.751767][ T5865] ? _raw_spin_unlock_irqrestore+0x130/0x140
[ 73.757774][ T5865] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 73.764136][ T5865] ? print_report+0x502/0x550
[ 73.768851][ T5865] check_panic_on_warn+0x86/0xb0
[ 73.773955][ T5865] ? binder_add_device+0x5f/0xa0
[ 73.778912][ T5865] end_report+0x77/0x160
[ 73.783160][ T5865] kasan_report+0x154/0x180
[ 73.787667][ T5865] ? binder_add_device+0x5f/0xa0
[ 73.792613][ T5865] binder_add_device+0x5f/0xa0
[ 73.797377][ T5865] binderfs_binder_device_create+0x7bf/0x9c0
[ 73.803353][ T5865] binderfs_fill_super+0x944/0xd90
[ 73.808461][ T5865] ? __pfx_binderfs_fill_super+0x10/0x10
[ 73.814182][ T5865] ? shrinker_register+0x160/0x230
[ 73.819308][ T5865] ? sget_fc+0x909/0x9c0
[ 73.823668][ T5865] ? __pfx_set_anon_super_fc+0x10/0x10
[ 73.829560][ T5865] ? __pfx_binderfs_fill_super+0x10/0x10
[ 73.835197][ T5865] get_tree_nodev+0xb7/0x140
[ 73.839797][ T5865] vfs_get_tree+0x90/0x2b0
[ 73.844209][ T5865] do_new_mount+0x2be/0xb40
[ 73.848701][ T5865] ? __pfx_do_new_mount+0x10/0x10
[ 73.853718][ T5865] __se_sys_mount+0x2d6/0x3c0
[ 73.858411][ T5865] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 73.864404][ T5865] ? __pfx___se_sys_mount+0x10/0x10
[ 73.869622][ T5865] ? do_syscall_64+0x100/0x230
[ 73.874383][ T5865] ? __x64_sys_mount+0x20/0xc0
[ 73.879137][ T5865] do_syscall_64+0xf3/0x230
[ 73.883637][ T5865] ? clear_bhb_loop+0x35/0x90
[ 73.888350][ T5865] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 73.894247][ T5865] RIP: 0033:0x7f6ebc3874ca
[ 73.898660][ T5865] 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
[ 73.918705][ T5865] RSP: 002b:00007ffc2047db58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 73.927114][ T5865] RAX: ffffffffffffffda RBX: 00007f6ebc401ecb RCX: 00007f6ebc3874ca
[ 73.935161][ T5865] RDX: 00007f6ebc40ec27 RSI: 00007f6ebc401ecb RDI: 00007f6ebc40ec27
[ 73.943213][ T5865] RBP: 00007f6ebc4020c3 R08: 0000000000000000 R09: 00000000000001ff
[ 73.951172][ T5865] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6ebc3e41c8
[ 73.959138][ T5865] R13: 00007f6ebc3e41a8 R14: 0000000000000009 R15: 0000000000000000
[ 73.967188][ T5865]
[ 73.970482][ T5865] Kernel Offset: disabled
[ 73.974791][ T5865] Rebooting in 86400 seconds..
serialport: Connection terminated to allow system upgrade. Please reconnect at your convenience.
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-build818213177=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at 6dbc6a9bc7
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=6dbc6a9bc76e06852841ed5c5bdbb78409b17f53 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250110-142744'" "-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=\"6dbc6a9bc76e06852841ed5c5bdbb78409b17f53\"
/usr/bin/ld: /tmp/ccwWfT7F.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