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 ffff88803075a808 by task syz-executor/5883
CPU: 1 UID: 0 PID: 5883 Comm: syz-executor Not tainted 6.13.0-rc7-next-20250114-syzkaller-gdab2734f8e9e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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: 0033:0x7fa711d874ca
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:00007ffc7e1bd7b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fa711e01ecb RCX: 00007fa711d874ca
RDX: 00007fa711e0ec27 RSI: 00007fa711e01ecb RDI: 00007fa711e0ec27
RBP: 00007fa711e020c3 R08: 0000000000000000 R09: 00000000000001ff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa711de41c8
R13: 00007fa711de41a8 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5858:
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:895 [inline]
kzalloc_noprof include/linux/slab.h:1031 [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 5858:
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:3017
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 ffff88803075a800
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff88803075a800, ffff88803075aa00)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x30758
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 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801ac41c80 dead000000000122 0000000000000000
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0000c1d601 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 0x252800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP|__GFP_THISNODE), pid 5865, tgid 5865 (syz.1.2), ts 67972603765, free_ts 67848004454
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_slab_page mm/slub.c:2425 [inline]
allocate_slab+0x66/0x3a0 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]
__do_kmalloc_node mm/slub.c:4293 [inline]
__kmalloc_node_noprof+0x2ee/0x4d0 mm/slub.c:4300
kmalloc_array_node_noprof include/linux/slab.h:1012 [inline]
alloc_slab_obj_exts+0x3a/0xa0 mm/slub.c:1964
__memcg_slab_post_alloc_hook+0x319/0x7e0 mm/memcontrol.c:2995
memcg_slab_post_alloc_hook mm/slub.c:2152 [inline]
slab_post_alloc_hook mm/slub.c:4125 [inline]
slab_alloc_node mm/slub.c:4164 [inline]
kmem_cache_alloc_noprof+0x287/0x380 mm/slub.c:4171
anon_vma_chain_alloc mm/rmap.c:142 [inline]
__anon_vma_prepare+0xc4/0x4a0 mm/rmap.c:195
__vmf_anon_prepare mm/memory.c:3389 [inline]
vmf_anon_prepare mm/internal.h:372 [inline]
do_anonymous_page mm/memory.c:4875 [inline]
do_pte_missing mm/memory.c:4045 [inline]
handle_pte_fault+0x5188/0x61c0 mm/memory.c:5889
__handle_mm_fault mm/memory.c:6032 [inline]
handle_mm_fault+0x11ec/0x1d50 mm/memory.c:6201
do_user_addr_fault arch/x86/mm/fault.c:1337 [inline]
handle_page_fault arch/x86/mm/fault.c:1480 [inline]
exc_page_fault+0x459/0x920 arch/x86/mm/fault.c:1538
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
page last free pid 5849 tgid 5849 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
__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_sys_pivot_root fs/namespace.c:4404 [inline]
__se_sys_pivot_root+0x1da/0x1650 fs/namespace.c:4388
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:
ffff88803075a700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88803075a780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88803075a800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88803075a880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88803075a900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.1.14' (ED25519) to the list of known hosts.
2025/01/15 02:10:02 ignoring optional flag "sandboxArg"="0"
2025/01/15 02:10:03 parsed 1 programs
[ 63.642347][ T5837] cgroup: Unknown subsys name 'net'
[ 63.750791][ T5837] cgroup: Unknown subsys name 'cpuset'
[ 63.757967][ T5837] cgroup: Unknown subsys name 'rlimit'
[ 65.063237][ T5837] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 67.579426][ T5856] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 67.587642][ T5856] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 67.597907][ T5856] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 67.612546][ T5856] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 67.620935][ T5856] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[ 67.628320][ T5856] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 67.885230][ T5849] 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.
[ 68.074403][ T5850] chnl_net:caif_netlink_parms(): no params data found
[ 68.685736][ T5850] bridge0: port 1(bridge_slave_0) entered blocking state
[ 68.693604][ T5850] bridge0: port 1(bridge_slave_0) entered disabled state
[ 68.701299][ T5850] bridge_slave_0: entered allmulticast mode
[ 68.709861][ T5850] bridge_slave_0: entered promiscuous mode
[ 68.722327][ T5850] bridge0: port 2(bridge_slave_1) entered blocking state
[ 68.722434][ T5850] bridge0: port 2(bridge_slave_1) entered disabled state
[ 68.722567][ T5850] bridge_slave_1: entered allmulticast mode
[ 68.723575][ T5850] bridge_slave_1: entered promiscuous mode
[ 68.784935][ T5850] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 68.815496][ T5850] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 68.830749][ T5883] ==================================================================
[ 68.830782][ T5883] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[ 68.830832][ T5883] Write of size 8 at addr ffff88803075a808 by task syz-executor/5883
[ 68.830854][ T5883]
[ 68.830888][ T5883] CPU: 1 UID: 0 PID: 5883 Comm: syz-executor Not tainted 6.13.0-rc7-next-20250114-syzkaller-gdab2734f8e9e #0
[ 68.830906][ T5883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 68.830920][ T5883] Call Trace:
[ 68.830925][ T5883]
[ 68.830931][ T5883] dump_stack_lvl+0x241/0x360
[ 68.830947][ T5883] ? __pfx_dump_stack_lvl+0x10/0x10
[ 68.830960][ T5883] ? __pfx__printk+0x10/0x10
[ 68.830979][ T5883] ? _printk+0xd5/0x120
[ 68.830996][ T5883] ? __virt_addr_valid+0x183/0x530
[ 68.831014][ T5883] ? __virt_addr_valid+0x183/0x530
[ 68.831032][ T5883] print_report+0x169/0x550
[ 68.831051][ T5883] ? __virt_addr_valid+0x183/0x530
[ 68.831069][ T5883] ? __virt_addr_valid+0x183/0x530
[ 68.831087][ T5883] ? __virt_addr_valid+0x45f/0x530
[ 68.831107][ T5883] ? __phys_addr+0xba/0x170
[ 68.831127][ T5883] ? binder_add_device+0x5f/0xa0
[ 68.831144][ T5883] kasan_report+0x143/0x180
[ 68.831163][ T5883] ? binder_add_device+0x5f/0xa0
[ 68.831178][ T5883] binder_add_device+0x5f/0xa0
[ 68.831192][ T5883] binderfs_binder_device_create+0x7bf/0x9c0
[ 68.831211][ T5883] binderfs_fill_super+0x944/0xd90
[ 68.831227][ T5883] ? __pfx_binderfs_fill_super+0x10/0x10
[ 68.831246][ T5883] ? shrinker_register+0x160/0x230
[ 68.831263][ T5883] ? sget_fc+0x909/0x9c0
[ 68.831281][ T5883] ? __pfx_set_anon_super_fc+0x10/0x10
[ 68.831296][ T5883] ? __pfx_binderfs_fill_super+0x10/0x10
[ 68.831310][ T5883] get_tree_nodev+0xb7/0x140
[ 68.831335][ T5883] vfs_get_tree+0x90/0x2b0
[ 68.831355][ T5883] do_new_mount+0x2be/0xb40
[ 68.831369][ T5883] ? __pfx_do_new_mount+0x10/0x10
[ 68.831387][ T5883] __se_sys_mount+0x2d6/0x3c0
[ 68.831400][ T5883] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 68.831421][ T5883] ? __pfx___se_sys_mount+0x10/0x10
[ 68.831437][ T5883] ? do_syscall_64+0x100/0x230
[ 68.831456][ T5883] ? __x64_sys_mount+0x20/0xc0
[ 68.831471][ T5883] do_syscall_64+0xf3/0x230
[ 68.831488][ T5883] ? clear_bhb_loop+0x35/0x90
[ 68.831509][ T5883] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.831528][ T5883] RIP: 0033:0x7fa711d874ca
[ 68.831547][ T5883] 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
[ 68.831560][ T5883] RSP: 002b:00007ffc7e1bd7b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 68.831582][ T5883] RAX: ffffffffffffffda RBX: 00007fa711e01ecb RCX: 00007fa711d874ca
[ 68.831593][ T5883] RDX: 00007fa711e0ec27 RSI: 00007fa711e01ecb RDI: 00007fa711e0ec27
[ 68.831604][ T5883] RBP: 00007fa711e020c3 R08: 0000000000000000 R09: 00000000000001ff
[ 68.831614][ T5883] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa711de41c8
[ 68.831625][ T5883] R13: 00007fa711de41a8 R14: 0000000000000009 R15: 0000000000000000
[ 68.831640][ T5883]
[ 68.831647][ T5883]
[ 68.831957][ T5883] Allocated by task 5858:
[ 68.831976][ T5883] kasan_save_track+0x3f/0x80
[ 68.832006][ T5883] __kasan_kmalloc+0x98/0xb0
[ 68.832031][ T5883] __kmalloc_cache_noprof+0x243/0x390
[ 68.832057][ T5883] binderfs_binder_device_create+0x16c/0x9c0
[ 68.832081][ T5883] binderfs_fill_super+0x944/0xd90
[ 68.832105][ T5883] get_tree_nodev+0xb7/0x140
[ 68.832132][ T5883] vfs_get_tree+0x90/0x2b0
[ 68.832154][ T5883] do_new_mount+0x2be/0xb40
[ 68.832170][ T5883] __se_sys_mount+0x2d6/0x3c0
[ 68.832187][ T5883] do_syscall_64+0xf3/0x230
[ 68.832206][ T5883] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.832227][ T5883]
[ 68.832238][ T5883] Freed by task 5858:
[ 68.832250][ T5883] kasan_save_track+0x3f/0x80
[ 68.832271][ T5883] kasan_save_free_info+0x40/0x50
[ 68.832294][ T5883] __kasan_slab_free+0x59/0x70
[ 68.832321][ T5883] kfree+0x196/0x430
[ 68.832351][ T5883] evict+0x4e8/0x9a0
[ 68.832377][ T5883] __dentry_kill+0x20d/0x630
[ 68.832402][ T5883] shrink_kill+0xa9/0x2c0
[ 68.832426][ T5883] shrink_dentry_list+0x2c0/0x5b0
[ 68.832452][ T5883] shrink_dcache_parent+0xcb/0x3b0
[ 68.832477][ T5883] do_one_tree+0x23/0xe0
[ 68.832502][ T5883] shrink_dcache_for_umount+0xb4/0x180
[ 68.832529][ T5883] generic_shutdown_super+0x6a/0x2d0
[ 68.832556][ T5883] kill_litter_super+0x76/0xb0
[ 68.832582][ T5883] binderfs_kill_super+0x44/0x90
[ 68.832606][ T5883] deactivate_locked_super+0xc4/0x130
[ 68.832633][ T5883] cleanup_mnt+0x41f/0x4b0
[ 68.832658][ T5883] task_work_run+0x24f/0x310
[ 68.832688][ T5883] do_exit+0xa2a/0x28e0
[ 68.832715][ T5883] do_group_exit+0x207/0x2c0
[ 68.832743][ T5883] get_signal+0x16b2/0x1750
[ 68.832766][ T5883] arch_do_signal_or_restart+0x96/0x860
[ 68.832793][ T5883] syscall_exit_to_user_mode+0xce/0x340
[ 68.832819][ T5883] do_syscall_64+0x100/0x230
[ 68.832845][ T5883] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.832873][ T5883]
[ 68.832888][ T5883] The buggy address belongs to the object at ffff88803075a800
[ 68.832888][ T5883] which belongs to the cache kmalloc-512 of size 512
[ 68.832912][ T5883] The buggy address is located 8 bytes inside of
[ 68.832912][ T5883] freed 512-byte region [ffff88803075a800, ffff88803075aa00)
[ 68.832940][ T5883]
[ 68.832954][ T5883] The buggy address belongs to the physical page:
[ 68.832977][ T5883] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x30758
[ 68.833011][ T5883] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 68.833036][ T5883] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 68.833065][ T5883] page_type: f5(slab)
[ 68.833089][ T5883] raw: 00fff00000000040 ffff88801ac41c80 dead000000000122 0000000000000000
[ 68.833113][ T5883] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 68.833138][ T5883] head: 00fff00000000040 ffff88801ac41c80 dead000000000122 0000000000000000
[ 68.833161][ T5883] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 68.833185][ T5883] head: 00fff00000000002 ffffea0000c1d601 ffffffffffffffff 0000000000000000
[ 68.833208][ T5883] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 68.833226][ T5883] page dumped because: kasan: bad access detected
[ 68.833248][ T5883] page_owner tracks the page as allocated
[ 68.833265][ T5883] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x252800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP|__GFP_THISNODE), pid 5865, tgid 5865 (syz.1.2), ts 67972603765, free_ts 67848004454
[ 68.833307][ T5883] post_alloc_hook+0x1f4/0x240
[ 68.833340][ T5883] get_page_from_freelist+0x365c/0x37a0
[ 68.833369][ T5883] __alloc_frozen_pages_noprof+0x292/0x710
[ 68.833398][ T5883] allocate_slab+0x66/0x3a0
[ 68.833426][ T5883] ___slab_alloc+0xc27/0x14a0
[ 68.833449][ T5883] __slab_alloc+0x58/0xa0
[ 68.833471][ T5883] __kmalloc_node_noprof+0x2ee/0x4d0
[ 68.833495][ T5883] alloc_slab_obj_exts+0x3a/0xa0
[ 68.833516][ T5883] __memcg_slab_post_alloc_hook+0x319/0x7e0
[ 68.833541][ T5883] kmem_cache_alloc_noprof+0x287/0x380
[ 68.833563][ T5883] __anon_vma_prepare+0xc4/0x4a0
[ 68.833589][ T5883] handle_pte_fault+0x5188/0x61c0
[ 68.833616][ T5883] handle_mm_fault+0x11ec/0x1d50
[ 68.833641][ T5883] exc_page_fault+0x459/0x920
[ 68.833664][ T5883] asm_exc_page_fault+0x26/0x30
[ 68.833690][ T5883] page last free pid 5849 tgid 5849 stack trace:
[ 68.833709][ T5883] free_frozen_pages+0xe0d/0x10e0
[ 68.833732][ T5883] __slab_free+0x2c2/0x380
[ 68.833753][ T5883] qlist_free_all+0x9a/0x140
[ 68.833774][ T5883] kasan_quarantine_reduce+0x14f/0x170
[ 68.833795][ T5883] __kasan_slab_alloc+0x23/0x80
[ 68.833817][ T5883] kmem_cache_alloc_noprof+0x1d9/0x380
[ 68.833835][ T5883] getname_flags+0xb7/0x540
[ 68.833854][ T5883] user_path_at+0x24/0x60
[ 68.833878][ T5883] __se_sys_pivot_root+0x1da/0x1650
[ 68.833902][ T5883] do_syscall_64+0xf3/0x230
[ 68.833927][ T5883] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.833955][ T5883]
[ 68.833969][ T5883] Memory state around the buggy address:
[ 68.833988][ T5883] ffff88803075a700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 68.834009][ T5883] ffff88803075a780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 68.834029][ T5883] >ffff88803075a800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.834047][ T5883] ^
[ 68.834065][ T5883] ffff88803075a880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.834083][ T5883] ffff88803075a900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.834099][ T5883] ==================================================================
[ 68.840977][ T1465] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 68.841090][ T1465] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 68.843546][ T5883] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 69.685682][ T5883] CPU: 1 UID: 0 PID: 5883 Comm: syz-executor Not tainted 6.13.0-rc7-next-20250114-syzkaller-gdab2734f8e9e #0
[ 69.697223][ T5883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 69.707293][ T5883] Call Trace:
[ 69.710596][ T5883]
[ 69.713520][ T5883] dump_stack_lvl+0x241/0x360
[ 69.718202][ T5883] ? __pfx_dump_stack_lvl+0x10/0x10
[ 69.723392][ T5883] ? __pfx__printk+0x10/0x10
[ 69.727974][ T5883] ? preempt_schedule+0xe1/0xf0
[ 69.732999][ T5883] ? vscnprintf+0x5d/0x90
[ 69.737329][ T5883] panic+0x349/0x880
[ 69.741215][ T5883] ? check_panic_on_warn+0x21/0xb0
[ 69.746319][ T5883] ? __pfx_panic+0x10/0x10
[ 69.750746][ T5883] ? _raw_spin_unlock_irqrestore+0x130/0x140
[ 69.756729][ T5883] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 69.763517][ T5883] ? print_report+0x502/0x550
[ 69.768185][ T5883] check_panic_on_warn+0x86/0xb0
[ 69.773110][ T5883] ? binder_add_device+0x5f/0xa0
[ 69.778033][ T5883] end_report+0x77/0x160
[ 69.782267][ T5883] kasan_report+0x154/0x180
[ 69.786851][ T5883] ? binder_add_device+0x5f/0xa0
[ 69.791777][ T5883] binder_add_device+0x5f/0xa0
[ 69.796534][ T5883] binderfs_binder_device_create+0x7bf/0x9c0
[ 69.802499][ T5883] binderfs_fill_super+0x944/0xd90
[ 69.807605][ T5883] ? __pfx_binderfs_fill_super+0x10/0x10
[ 69.813232][ T5883] ? shrinker_register+0x160/0x230
[ 69.818416][ T5883] ? sget_fc+0x909/0x9c0
[ 69.822646][ T5883] ? __pfx_set_anon_super_fc+0x10/0x10
[ 69.828099][ T5883] ? __pfx_binderfs_fill_super+0x10/0x10
[ 69.833716][ T5883] get_tree_nodev+0xb7/0x140
[ 69.838298][ T5883] vfs_get_tree+0x90/0x2b0
[ 69.842703][ T5883] do_new_mount+0x2be/0xb40
[ 69.847194][ T5883] ? __pfx_do_new_mount+0x10/0x10
[ 69.852212][ T5883] __se_sys_mount+0x2d6/0x3c0
[ 69.856938][ T5883] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 69.862996][ T5883] ? __pfx___se_sys_mount+0x10/0x10
[ 69.868297][ T5883] ? do_syscall_64+0x100/0x230
[ 69.873052][ T5883] ? __x64_sys_mount+0x20/0xc0
[ 69.877797][ T5883] do_syscall_64+0xf3/0x230
[ 69.882292][ T5883] ? clear_bhb_loop+0x35/0x90
[ 69.886956][ T5883] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.892925][ T5883] RIP: 0033:0x7fa711d874ca
[ 69.897326][ T5883] 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
[ 69.916917][ T5883] RSP: 002b:00007ffc7e1bd7b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 69.925320][ T5883] RAX: ffffffffffffffda RBX: 00007fa711e01ecb RCX: 00007fa711d874ca
[ 69.933277][ T5883] RDX: 00007fa711e0ec27 RSI: 00007fa711e01ecb RDI: 00007fa711e0ec27
[ 69.941838][ T5883] RBP: 00007fa711e020c3 R08: 0000000000000000 R09: 00000000000001ff
[ 69.949795][ T5883] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa711de41c8
[ 69.957873][ T5883] R13: 00007fa711de41a8 R14: 0000000000000009 R15: 0000000000000000
[ 69.965929][ T5883]
[ 69.969378][ T5883] Kernel Offset: disabled
[ 69.973732][ T5883] 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-build4132951495=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at d3ccff637
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=d3ccff6372e07c6aabd02b5da419aa6492b5f0ad -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241226-091248'" "-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=\"d3ccff6372e07c6aabd02b5da419aa6492b5f0ad\"
/usr/bin/ld: /tmp/ccOtbO91.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