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 ffff8880272b9c08 by task syz-executor/5714
CPU: 1 UID: 0 PID: 5714 Comm: syz-executor Not tainted 6.14.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0x169/0x550 mm/kasan/report.c:489
kasan_report+0x143/0x180 mm/kasan/report.c:602
hlist_add_head include/linux/list.h:1026 [inline]
binder_add_device+0x5f/0xa0 drivers/android/binder.c:6932
binderfs_binder_device_create+0x7bf/0x9c0 drivers/android/binderfs.c:210
binderfs_fill_super+0x944/0xd90 drivers/android/binderfs.c:729
vfs_get_super fs/super.c:1280 [inline]
get_tree_nodev+0xb7/0x140 fs/super.c:1299
vfs_get_tree+0x90/0x290 fs/super.c:1814
do_new_mount+0x2be/0xb40 fs/namespace.c:3560
do_mount fs/namespace.c:3900 [inline]
__do_sys_mount fs/namespace.c:4111 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f4d7058e58a
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:00007ffdda81f558 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f4d7060e663 RCX: 00007f4d7058e58a
RDX: 00007f4d7061dda7 RSI: 00007f4d7060e663 RDI: 00007f4d7061dda7
RBP: 00007f4d7060e8ac R08: 0000000000000000 R09: 00000000000001ff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4d705eb1a8
R13: 00007f4d705eb180 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5710:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0x7d/0x90 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__kmalloc_cache_noprof+0x23e/0x360 mm/slub.c:4325
kmalloc_noprof include/linux/slab.h:901 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
binderfs_binder_device_create+0x16c/0x9c0 drivers/android/binderfs.c:147
binderfs_fill_super+0x944/0xd90 drivers/android/binderfs.c:729
vfs_get_super fs/super.c:1280 [inline]
get_tree_nodev+0xb7/0x140 fs/super.c:1299
vfs_get_tree+0x90/0x290 fs/super.c:1814
do_new_mount+0x2be/0xb40 fs/namespace.c:3560
do_mount fs/namespace.c:3900 [inline]
__do_sys_mount fs/namespace.c:4111 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
Freed by task 5710:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x36/0x50 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2353 [inline]
slab_free mm/slub.c:4609 [inline]
kfree+0x181/0x430 mm/slub.c:4757
evict+0x4e8/0x9a0 fs/inode.c:796
__dentry_kill+0x200/0x610 fs/dcache.c:643
shrink_kill+0xa9/0x2c0 fs/dcache.c:1088
shrink_dentry_list+0x2c0/0x5b0 fs/dcache.c:1115
shrink_dcache_parent+0xcb/0x3b0
do_one_tree+0x23/0xe0 fs/dcache.c:1578
shrink_dcache_for_umount+0xb4/0x180 fs/dcache.c:1595
generic_shutdown_super+0x6a/0x2d0 fs/super.c:620
kill_anon_super fs/super.c:1237 [inline]
kill_litter_super+0x76/0xb0 fs/super.c:1247
binderfs_kill_super+0x44/0x90 drivers/android/binderfs.c:791
deactivate_locked_super+0xc4/0x120 fs/super.c:473
cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1413
task_work_run+0x24f/0x310 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2a/0x28d0 kernel/exit.c:938
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
__do_sys_exit_group kernel/exit.c:1098 [inline]
__se_sys_exit_group kernel/exit.c:1096 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1096
x64_sys_call+0x26a8/0x26b0 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
The buggy address belongs to the object at ffff8880272b9c00
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff8880272b9c00, ffff8880272b9e00)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x272b8
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801a041c80 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801a041c80 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea00009cae01 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 1, tgid 1 (swapper/0), ts 14745689073, free_ts 0
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1ec/0x220 mm/page_alloc.c:1551
prep_new_page mm/page_alloc.c:1559 [inline]
get_page_from_freelist+0x3607/0x3750 mm/page_alloc.c:3477
__alloc_frozen_pages_noprof+0x256/0x690 mm/page_alloc.c:4739
alloc_pages_mpol+0x311/0x660 mm/mempolicy.c:2270
alloc_slab_page mm/slub.c:2423 [inline]
allocate_slab+0x8f/0x3a0 mm/slub.c:2587
new_slab mm/slub.c:2640 [inline]
___slab_alloc+0xc35/0x14a0 mm/slub.c:3826
__slab_alloc+0x58/0xa0 mm/slub.c:3916
__slab_alloc_node mm/slub.c:3991 [inline]
slab_alloc_node mm/slub.c:4152 [inline]
__kmalloc_cache_noprof+0x276/0x360 mm/slub.c:4320
kmalloc_noprof include/linux/slab.h:901 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
device_private_init drivers/base/core.c:3510 [inline]
device_add+0xc4/0xd10 drivers/base/core.c:3561
usb_hub_create_port_device+0x3da/0xc10 drivers/usb/core/port.c:769
hub_configure drivers/usb/core/hub.c:1711 [inline]
hub_probe+0x2503/0x3640 drivers/usb/core/hub.c:1966
usb_probe_interface+0x641/0xbb0 drivers/usb/core/driver.c:396
really_probe+0x2b9/0xad0 drivers/base/dd.c:658
__driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800
driver_probe_device+0x50/0x430 drivers/base/dd.c:830
__device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958
page_owner free stack trace missing
Memory state around the buggy address:
ffff8880272b9b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8880272b9b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880272b9c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880272b9c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880272b9d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
DUID 00:04:e2:a4:82:45:0b:50:df:66:17:ab:3d:59:a7:23:da:65
forked to background, child pid 5371
[ 47.217719][ T5372] 8021q: adding VLAN 0 to HW filter on device bond0
[ 47.229860][ T5372] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
Warning: Permanently added '10.128.0.212' (ED25519) to the list of known hosts.
2025/02/15 00:00:04 ignoring optional flag "sandboxArg"="0"
2025/02/15 00:00:06 parsed 1 programs
syzkaller login: [ 80.111984][ T5705] cgroup: Unknown subsys name 'net'
[ 80.204991][ T5705] cgroup: Unknown subsys name 'cpuset'
[ 80.216354][ T5705] cgroup: Unknown subsys name 'rlimit'
[ 80.222599][ T5705] cgroup: Unknown subsys name 'memory'
[ 81.874653][ T5705] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 85.157454][ T5714] ==================================================================
[ 85.166539][ T5714] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[ 85.174440][ T5714] Write of size 8 at addr ffff8880272b9c08 by task syz-executor/5714
[ 85.182975][ T5714]
[ 85.185524][ T5714] CPU: 1 UID: 0 PID: 5714 Comm: syz-executor Not tainted 6.14.0-rc2-syzkaller #0
[ 85.185544][ T5714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 85.185557][ T5714] Call Trace:
[ 85.185565][ T5714]
[ 85.185572][ T5714] dump_stack_lvl+0x241/0x360
[ 85.185595][ T5714] ? __pfx_dump_stack_lvl+0x10/0x10
[ 85.185611][ T5714] ? __pfx__printk+0x10/0x10
[ 85.185627][ T5714] ? _printk+0xd5/0x120
[ 85.185641][ T5714] ? __virt_addr_valid+0x183/0x530
[ 85.185660][ T5714] ? __virt_addr_valid+0x183/0x530
[ 85.185678][ T5714] print_report+0x169/0x550
[ 85.185699][ T5714] ? __virt_addr_valid+0x183/0x530
[ 85.185715][ T5714] ? __virt_addr_valid+0x183/0x530
[ 85.185732][ T5714] ? __virt_addr_valid+0x45f/0x530
[ 85.185749][ T5714] ? __phys_addr+0xba/0x170
[ 85.185768][ T5714] ? binder_add_device+0x5f/0xa0
[ 85.185785][ T5714] kasan_report+0x143/0x180
[ 85.185806][ T5714] ? binder_add_device+0x5f/0xa0
[ 85.185822][ T5714] binder_add_device+0x5f/0xa0
[ 85.185836][ T5714] binderfs_binder_device_create+0x7bf/0x9c0
[ 85.185865][ T5714] binderfs_fill_super+0x944/0xd90
[ 85.185890][ T5714] ? __pfx_binderfs_fill_super+0x10/0x10
[ 85.185921][ T5714] ? shrinker_register+0x160/0x230
[ 85.185940][ T5714] ? sget_fc+0x909/0x9c0
[ 85.185962][ T5714] ? __pfx_set_anon_super_fc+0x10/0x10
[ 85.185976][ T5714] ? __pfx_binderfs_fill_super+0x10/0x10
[ 85.185999][ T5714] get_tree_nodev+0xb7/0x140
[ 85.186013][ T5714] vfs_get_tree+0x90/0x290
[ 85.186030][ T5714] do_new_mount+0x2be/0xb40
[ 85.186051][ T5714] ? __pfx_do_new_mount+0x10/0x10
[ 85.186071][ T5714] __se_sys_mount+0x2d6/0x3c0
[ 85.186089][ T5714] ? lockdep_hardirqs_on_prepare+0x43d/0x7a0
[ 85.186109][ T5714] ? __pfx___se_sys_mount+0x10/0x10
[ 85.186128][ T5714] ? __x64_sys_mount+0x20/0xc0
[ 85.186147][ T5714] do_syscall_64+0x82/0x160
[ 85.186163][ T5714] ? clear_bhb_loop+0x25/0x80
[ 85.186184][ T5714] ? clear_bhb_loop+0x25/0x80
[ 85.186248][ T5714] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 85.186273][ T5714] RIP: 0033:0x7f4d7058e58a
[ 85.186289][ T5714] 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
[ 85.186301][ T5714] RSP: 002b:00007ffdda81f558 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 85.186317][ T5714] RAX: ffffffffffffffda RBX: 00007f4d7060e663 RCX: 00007f4d7058e58a
[ 85.186328][ T5714] RDX: 00007f4d7061dda7 RSI: 00007f4d7060e663 RDI: 00007f4d7061dda7
[ 85.186338][ T5714] RBP: 00007f4d7060e8ac R08: 0000000000000000 R09: 00000000000001ff
[ 85.186347][ T5714] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4d705eb1a8
[ 85.186357][ T5714] R13: 00007f4d705eb180 R14: 0000000000000009 R15: 0000000000000000
[ 85.186371][ T5714]
[ 85.186376][ T5714]
[ 85.482274][ T5714] Allocated by task 5710:
[ 85.487882][ T5714] kasan_save_track+0x3f/0x80
[ 85.494597][ T5714] __kasan_kmalloc+0x7d/0x90
[ 85.501657][ T5714] __kmalloc_cache_noprof+0x23e/0x360
[ 85.511423][ T5714] binderfs_binder_device_create+0x16c/0x9c0
[ 85.519917][ T5714] binderfs_fill_super+0x944/0xd90
[ 85.527845][ T5714] get_tree_nodev+0xb7/0x140
[ 85.533281][ T5714] vfs_get_tree+0x90/0x290
[ 85.539637][ T5714] do_new_mount+0x2be/0xb40
[ 85.547030][ T5714] __se_sys_mount+0x2d6/0x3c0
[ 85.552777][ T5714] do_syscall_64+0x82/0x160
[ 85.559308][ T5714] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 85.566037][ T5714]
[ 85.569370][ T5714] Freed by task 5710:
[ 85.574032][ T5714] kasan_save_track+0x3f/0x80
[ 85.579368][ T5714] kasan_save_free_info+0x40/0x50
[ 85.584876][ T5714] __kasan_slab_free+0x36/0x50
[ 85.589853][ T5714] kfree+0x181/0x430
[ 85.594126][ T5714] evict+0x4e8/0x9a0
[ 85.599011][ T5714] __dentry_kill+0x200/0x610
[ 85.604068][ T5714] shrink_kill+0xa9/0x2c0
[ 85.609823][ T5714] shrink_dentry_list+0x2c0/0x5b0
[ 85.615310][ T5714] shrink_dcache_parent+0xcb/0x3b0
[ 85.621401][ T5714] do_one_tree+0x23/0xe0
[ 85.625770][ T5714] shrink_dcache_for_umount+0xb4/0x180
[ 85.631933][ T5714] generic_shutdown_super+0x6a/0x2d0
[ 85.638151][ T5714] kill_litter_super+0x76/0xb0
[ 85.643031][ T5714] binderfs_kill_super+0x44/0x90
[ 85.648104][ T5714] deactivate_locked_super+0xc4/0x120
[ 85.653686][ T5714] cleanup_mnt+0x41f/0x4b0
[ 85.658725][ T5714] task_work_run+0x24f/0x310
[ 85.663344][ T5714] do_exit+0xa2a/0x28d0
[ 85.667957][ T5714] do_group_exit+0x207/0x2c0
[ 85.674147][ T5714] __x64_sys_exit_group+0x3f/0x40
[ 85.680413][ T5714] x64_sys_call+0x26a8/0x26b0
[ 85.685671][ T5714] do_syscall_64+0x82/0x160
[ 85.690712][ T5714] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 85.697346][ T5714]
[ 85.699671][ T5714] The buggy address belongs to the object at ffff8880272b9c00
[ 85.699671][ T5714] which belongs to the cache kmalloc-512 of size 512
[ 85.717577][ T5714] The buggy address is located 8 bytes inside of
[ 85.717577][ T5714] freed 512-byte region [ffff8880272b9c00, ffff8880272b9e00)
[ 85.733515][ T5714]
[ 85.736349][ T5714] The buggy address belongs to the physical page:
[ 85.744386][ T5714] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x272b8
[ 85.753850][ T5714] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 85.763698][ T5714] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 85.772099][ T5714] page_type: f5(slab)
[ 85.776419][ T5714] raw: 00fff00000000040 ffff88801a041c80 dead000000000100 dead000000000122
[ 85.786101][ T5714] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 85.795085][ T5714] head: 00fff00000000040 ffff88801a041c80 dead000000000100 dead000000000122
[ 85.804342][ T5714] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 85.814257][ T5714] head: 00fff00000000002 ffffea00009cae01 ffffffffffffffff 0000000000000000
[ 85.823720][ T5714] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 85.832760][ T5714] page dumped because: kasan: bad access detected
[ 85.839511][ T5714] page_owner tracks the page as allocated
[ 85.845856][ T5714] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 14745689073, free_ts 0
[ 85.866338][ T5714] post_alloc_hook+0x1ec/0x220
[ 85.871210][ T5714] get_page_from_freelist+0x3607/0x3750
[ 85.876897][ T5714] __alloc_frozen_pages_noprof+0x256/0x690
[ 85.883965][ T5714] alloc_pages_mpol+0x311/0x660
[ 85.888845][ T5714] allocate_slab+0x8f/0x3a0
[ 85.893914][ T5714] ___slab_alloc+0xc35/0x14a0
[ 85.898690][ T5714] __slab_alloc+0x58/0xa0
[ 85.903036][ T5714] __kmalloc_cache_noprof+0x276/0x360
[ 85.909216][ T5714] device_add+0xc4/0xd10
[ 85.913576][ T5714] usb_hub_create_port_device+0x3da/0xc10
[ 85.919449][ T5714] hub_probe+0x2503/0x3640
[ 85.923907][ T5714] usb_probe_interface+0x641/0xbb0
[ 85.929051][ T5714] really_probe+0x2b9/0xad0
[ 85.933586][ T5714] __driver_probe_device+0x1a2/0x390
[ 85.939479][ T5714] driver_probe_device+0x50/0x430
[ 85.944916][ T5714] __device_attach_driver+0x2d6/0x530
[ 85.951102][ T5714] page_owner free stack trace missing
[ 85.957803][ T5714]
[ 85.960236][ T5714] Memory state around the buggy address:
[ 85.966036][ T5714] ffff8880272b9b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 85.974261][ T5714] ffff8880272b9b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 85.982591][ T5714] >ffff8880272b9c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 85.990920][ T5714] ^
[ 85.995905][ T5714] ffff8880272b9c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 86.004505][ T5714] ffff8880272b9d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 86.013760][ T5714] ==================================================================
[ 86.024303][ T5714] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 86.035223][ T5714] CPU: 1 UID: 0 PID: 5714 Comm: syz-executor Not tainted 6.14.0-rc2-syzkaller #0
[ 86.045958][ T5714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 86.056759][ T5714] Call Trace:
[ 86.060346][ T5714]
[ 86.063513][ T5714] dump_stack_lvl+0x241/0x360
[ 86.068415][ T5714] ? __pfx_dump_stack_lvl+0x10/0x10
[ 86.073871][ T5714] ? __pfx__printk+0x10/0x10
[ 86.078676][ T5714] ? preempt_schedule+0xe1/0xf0
[ 86.083853][ T5714] ? vscnprintf+0x5d/0x90
[ 86.088435][ T5714] panic+0x349/0x880
[ 86.092648][ T5714] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 86.099118][ T5714] ? check_panic_on_warn+0x21/0xb0
[ 86.104508][ T5714] ? __pfx_panic+0x10/0x10
[ 86.109154][ T5714] ? _raw_spin_unlock_irqrestore+0x130/0x140
[ 86.115190][ T5714] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 86.122017][ T5714] ? print_report+0x502/0x550
[ 86.126798][ T5714] check_panic_on_warn+0x86/0xb0
[ 86.133512][ T5714] ? binder_add_device+0x5f/0xa0
[ 86.138563][ T5714] end_report+0x77/0x150
[ 86.142923][ T5714] kasan_report+0x154/0x180
[ 86.147452][ T5714] ? binder_add_device+0x5f/0xa0
[ 86.152573][ T5714] binder_add_device+0x5f/0xa0
[ 86.157632][ T5714] binderfs_binder_device_create+0x7bf/0x9c0
[ 86.163727][ T5714] binderfs_fill_super+0x944/0xd90
[ 86.169147][ T5714] ? __pfx_binderfs_fill_super+0x10/0x10
[ 86.174812][ T5714] ? shrinker_register+0x160/0x230
[ 86.180114][ T5714] ? sget_fc+0x909/0x9c0
[ 86.184473][ T5714] ? __pfx_set_anon_super_fc+0x10/0x10
[ 86.189958][ T5714] ? __pfx_binderfs_fill_super+0x10/0x10
[ 86.196012][ T5714] get_tree_nodev+0xb7/0x140
[ 86.200785][ T5714] vfs_get_tree+0x90/0x290
[ 86.205614][ T5714] do_new_mount+0x2be/0xb40
[ 86.210669][ T5714] ? __pfx_do_new_mount+0x10/0x10
[ 86.215878][ T5714] __se_sys_mount+0x2d6/0x3c0
[ 86.220835][ T5714] ? lockdep_hardirqs_on_prepare+0x43d/0x7a0
[ 86.226837][ T5714] ? __pfx___se_sys_mount+0x10/0x10
[ 86.232235][ T5714] ? __x64_sys_mount+0x20/0xc0
[ 86.237376][ T5714] do_syscall_64+0x82/0x160
[ 86.242125][ T5714] ? clear_bhb_loop+0x25/0x80
[ 86.246960][ T5714] ? clear_bhb_loop+0x25/0x80
[ 86.251744][ T5714] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 86.257846][ T5714] RIP: 0033:0x7f4d7058e58a
[ 86.262471][ T5714] 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
[ 86.282988][ T5714] RSP: 002b:00007ffdda81f558 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 86.291702][ T5714] RAX: ffffffffffffffda RBX: 00007f4d7060e663 RCX: 00007f4d7058e58a
[ 86.300061][ T5714] RDX: 00007f4d7061dda7 RSI: 00007f4d7060e663 RDI: 00007f4d7061dda7
[ 86.308127][ T5714] RBP: 00007f4d7060e8ac R08: 0000000000000000 R09: 00000000000001ff
[ 86.317082][ T5714] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4d705eb1a8
[ 86.325425][ T5714] R13: 00007f4d705eb180 R14: 0000000000000009 R15: 0000000000000000
[ 86.333688][ T5714]
[ 86.337421][ T5714] Kernel Offset: disabled
[ 86.342246][ T5714] 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='/syzkaller/jobs-2/linux/gopath/pkg/mod/golang.org/toolchain@v0.0.1-go1.23.6.linux-amd64'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/syzkaller/jobs-2/linux/gopath/pkg/mod/golang.org/toolchain@v0.0.1-go1.23.6.linux-amd64/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.23.6'
GODEBUG=''
GOTELEMETRY='local'
GOTELEMETRYDIR='/syzkaller/.config/go/telemetry'
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-build144714911=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at a98a8417f2
nothing to commit, working tree clean
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=a98a8417f2c0dfdab1e8d3d49e8a7605340ada89 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250213-102851'" -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
mkdir -p ./bin/linux_amd64
g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \
-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"a98a8417f2c0dfdab1e8d3d49e8a7605340ada89\"
/usr/bin/ld: /tmp/ccf92bZq.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