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 ffff88802eb3ec08 by task syz-executor/5716
CPU: 1 UID: 0 PID: 5716 Comm: syz-executor Not tainted 6.13.0-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: 0033:0x7f0fafb8e4ca
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:00007ffd96e070c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f0fafc0e663 RCX: 00007f0fafb8e4ca
RDX: 00007f0fafc1dd57 RSI: 00007f0fafc0e663 RDI: 00007f0fafc1dd57
RBP: 00007f0fafc0e85b R08: 0000000000000000 R09: 00000000000001ff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0fafbeb1c8
R13: 00007f0fafbeb1a8 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: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+0xc4/0x120 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
get_signal+0x16a6/0x1740 kernel/signal.c:3036
arch_do_signal_or_restart+0x96/0x830 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+0xcd/0x330 kernel/entry/common.c:218
do_syscall_64+0x8e/0x160 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x76/0x7e
The buggy address belongs to the object at ffff88802eb3ec00
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff88802eb3ec00, ffff88802eb3ee00)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2eb3c
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 ffffea0000ca7b00 dead000000000002
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801a041c80 ffffea0000ca7b00 dead000000000002
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0000bacf01 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 2, tgid 2 (kthreadd), ts 20418073923, free_ts 20063422199
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]
set_kthread_struct+0xc2/0x330 kernel/kthread.c:126
copy_process+0x11ed/0x3d40 kernel/fork.c:2320
kernel_clone+0x223/0x870 kernel/fork.c:2804
kernel_thread+0x1bc/0x240 kernel/fork.c:2866
create_kthread kernel/kthread.c:487 [inline]
kthreadd+0x60d/0x810 kernel/kthread.c:847
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
page last free pid 1 tgid 1 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
__free_pages_ok+0xbac/0xe10 mm/page_alloc.c:1271
__folio_put+0x2b3/0x360 mm/swap.c:112
folio_put include/linux/mm.h:1489 [inline]
free_large_kmalloc+0xfc/0x170 mm/slub.c:4728
kfree+0x1fb/0x430 mm/slub.c:4751
v4l2_ctrl_handler_free+0x599/0x670 drivers/media/v4l2-core/v4l2-ctrls-core.c:1579
vivid_free_controls+0x6d/0xe0 drivers/media/test-drivers/vivid/vivid-ctrls.c:2062
vivid_dev_release+0x33/0x120 drivers/media/test-drivers/vivid/vivid-core.c:855
v4l2_device_release drivers/media/v4l2-core/v4l2-device.c:51 [inline]
kref_put include/linux/kref.h:65 [inline]
v4l2_device_put+0x7f/0xd0 drivers/media/v4l2-core/v4l2-device.c:56
vivid_create_instance drivers/media/test-drivers/vivid/vivid-core.c:2068 [inline]
vivid_probe+0x5146/0x7cf0 drivers/media/test-drivers/vivid/vivid-core.c:2093
platform_probe+0x13a/0x1c0 drivers/base/platform.c:1404
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
__driver_attach+0x45f/0x710 drivers/base/dd.c:1216
bus_for_each_dev+0x239/0x2b0 drivers/base/bus.c:370
bus_add_driver+0x346/0x670 drivers/base/bus.c:675
Memory state around the buggy address:
ffff88802eb3eb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88802eb3eb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88802eb3ec00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88802eb3ec80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88802eb3ed00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.10.30' (ED25519) to the list of known hosts.
2025/01/28 01:43:41 ignoring optional flag "sandboxArg"="0"
2025/01/28 01:43:42 parsed 1 programs
[ 76.479268][ T5700] cgroup: Unknown subsys name 'net'
[ 76.588125][ T5700] cgroup: Unknown subsys name 'cpuset'
[ 76.596274][ T5700] cgroup: Unknown subsys name 'rlimit'
[ 76.601898][ T5700] cgroup: Unknown subsys name 'memory'
[ 78.054564][ T5700] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 81.030400][ T5716] ==================================================================
[ 81.038611][ T5716] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[ 81.046392][ T5716] Write of size 8 at addr ffff88802eb3ec08 by task syz-executor/5716
[ 81.054480][ T5716]
[ 81.056857][ T5716] CPU: 1 UID: 0 PID: 5716 Comm: syz-executor Not tainted 6.13.0-syzkaller #0
[ 81.056879][ T5716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 81.056896][ T5716] Call Trace:
[ 81.056904][ T5716]
[ 81.056912][ T5716] dump_stack_lvl+0x241/0x360
[ 81.056942][ T5716] ? __pfx_dump_stack_lvl+0x10/0x10
[ 81.056965][ T5716] ? __pfx__printk+0x10/0x10
[ 81.056987][ T5716] ? _printk+0xd5/0x120
[ 81.057007][ T5716] ? __virt_addr_valid+0x183/0x530
[ 81.057032][ T5716] ? __virt_addr_valid+0x183/0x530
[ 81.057058][ T5716] print_report+0x169/0x550
[ 81.057092][ T5716] ? __virt_addr_valid+0x183/0x530
[ 81.057115][ T5716] ? __virt_addr_valid+0x183/0x530
[ 81.057138][ T5716] ? __virt_addr_valid+0x45f/0x530
[ 81.057162][ T5716] ? __phys_addr+0xba/0x170
[ 81.057186][ T5716] ? binder_add_device+0x5f/0xa0
[ 81.057215][ T5716] kasan_report+0x143/0x180
[ 81.057244][ T5716] ? binder_add_device+0x5f/0xa0
[ 81.057275][ T5716] binder_add_device+0x5f/0xa0
[ 81.057303][ T5716] binderfs_binder_device_create+0x7bf/0x9c0
[ 81.057335][ T5716] binderfs_fill_super+0x944/0xd90
[ 81.057364][ T5716] ? __pfx_binderfs_fill_super+0x10/0x10
[ 81.057402][ T5716] ? shrinker_register+0x160/0x230
[ 81.057427][ T5716] ? sget_fc+0x909/0x9c0
[ 81.057456][ T5716] ? __pfx_set_anon_super_fc+0x10/0x10
[ 81.057474][ T5716] ? __pfx_binderfs_fill_super+0x10/0x10
[ 81.057501][ T5716] get_tree_nodev+0xb7/0x140
[ 81.057522][ T5716] vfs_get_tree+0x90/0x290
[ 81.057543][ T5716] do_new_mount+0x2be/0xb40
[ 81.057567][ T5716] ? __pfx_do_new_mount+0x10/0x10
[ 81.057594][ T5716] __se_sys_mount+0x2d6/0x3c0
[ 81.057618][ T5716] ? lockdep_hardirqs_on_prepare+0x43d/0x7a0
[ 81.057645][ T5716] ? __pfx___se_sys_mount+0x10/0x10
[ 81.057672][ T5716] ? __x64_sys_mount+0x20/0xc0
[ 81.057693][ T5716] do_syscall_64+0x82/0x160
[ 81.057716][ T5716] ? clear_bhb_loop+0x25/0x80
[ 81.057743][ T5716] ? clear_bhb_loop+0x25/0x80
[ 81.057768][ T5716] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 81.057796][ T5716] RIP: 0033:0x7f0fafb8e4ca
[ 81.057816][ T5716] 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
[ 81.057830][ T5716] RSP: 002b:00007ffd96e070c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 81.057849][ T5716] RAX: ffffffffffffffda RBX: 00007f0fafc0e663 RCX: 00007f0fafb8e4ca
[ 81.057861][ T5716] RDX: 00007f0fafc1dd57 RSI: 00007f0fafc0e663 RDI: 00007f0fafc1dd57
[ 81.057872][ T5716] RBP: 00007f0fafc0e85b R08: 0000000000000000 R09: 00000000000001ff
[ 81.057882][ T5716] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0fafbeb1c8
[ 81.057893][ T5716] R13: 00007f0fafbeb1a8 R14: 0000000000000009 R15: 0000000000000000
[ 81.057909][ T5716]
[ 81.057916][ T5716]
[ 81.328904][ T5716] Allocated by task 5710:
[ 81.333225][ T5716] kasan_save_track+0x3f/0x80
[ 81.337920][ T5716] __kasan_kmalloc+0x7d/0x90
[ 81.342509][ T5716] __kmalloc_cache_noprof+0x23e/0x360
[ 81.347899][ T5716] binderfs_binder_device_create+0x16c/0x9c0
[ 81.353880][ T5716] binderfs_fill_super+0x944/0xd90
[ 81.359009][ T5716] get_tree_nodev+0xb7/0x140
[ 81.363592][ T5716] vfs_get_tree+0x90/0x290
[ 81.368017][ T5716] do_new_mount+0x2be/0xb40
[ 81.373025][ T5716] __se_sys_mount+0x2d6/0x3c0
[ 81.377726][ T5716] do_syscall_64+0x82/0x160
[ 81.382248][ T5716] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 81.388147][ T5716]
[ 81.390502][ T5716] Freed by task 5710:
[ 81.394501][ T5716] kasan_save_track+0x3f/0x80
[ 81.399178][ T5716] kasan_save_free_info+0x40/0x50
[ 81.404202][ T5716] __kasan_slab_free+0x36/0x50
[ 81.409108][ T5716] kfree+0x181/0x430
[ 81.413004][ T5716] evict+0x4e8/0x9a0
[ 81.416915][ T5716] __dentry_kill+0x200/0x610
[ 81.421543][ T5716] shrink_kill+0xa9/0x2c0
[ 81.425961][ T5716] shrink_dentry_list+0x2c0/0x5b0
[ 81.430984][ T5716] shrink_dcache_parent+0xcb/0x3b0
[ 81.436116][ T5716] do_one_tree+0x23/0xe0
[ 81.440359][ T5716] shrink_dcache_for_umount+0xb4/0x180
[ 81.445828][ T5716] generic_shutdown_super+0x6a/0x2d0
[ 81.451134][ T5716] kill_litter_super+0x76/0xb0
[ 81.455900][ T5716] binderfs_kill_super+0x44/0x90
[ 81.460844][ T5716] deactivate_locked_super+0xc4/0x120
[ 81.466223][ T5716] cleanup_mnt+0x41f/0x4b0
[ 81.470681][ T5716] task_work_run+0x24f/0x310
[ 81.475283][ T5716] do_exit+0xa2a/0x28d0
[ 81.479445][ T5716] do_group_exit+0x207/0x2c0
[ 81.484040][ T5716] get_signal+0x16a6/0x1740
[ 81.488548][ T5716] arch_do_signal_or_restart+0x96/0x830
[ 81.494099][ T5716] syscall_exit_to_user_mode+0xcd/0x330
[ 81.499742][ T5716] do_syscall_64+0x8e/0x160
[ 81.504254][ T5716] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 81.510213][ T5716]
[ 81.512550][ T5716] The buggy address belongs to the object at ffff88802eb3ec00
[ 81.512550][ T5716] which belongs to the cache kmalloc-512 of size 512
[ 81.526636][ T5716] The buggy address is located 8 bytes inside of
[ 81.526636][ T5716] freed 512-byte region [ffff88802eb3ec00, ffff88802eb3ee00)
[ 81.540264][ T5716]
[ 81.542584][ T5716] The buggy address belongs to the physical page:
[ 81.548997][ T5716] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2eb3c
[ 81.557757][ T5716] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 81.566249][ T5716] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 81.573793][ T5716] page_type: f5(slab)
[ 81.577769][ T5716] raw: 00fff00000000040 ffff88801a041c80 ffffea0000ca7b00 dead000000000002
[ 81.586348][ T5716] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 81.594926][ T5716] head: 00fff00000000040 ffff88801a041c80 ffffea0000ca7b00 dead000000000002
[ 81.603598][ T5716] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 81.612272][ T5716] head: 00fff00000000002 ffffea0000bacf01 ffffffffffffffff 0000000000000000
[ 81.621036][ T5716] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 81.629803][ T5716] page dumped because: kasan: bad access detected
[ 81.636224][ T5716] page_owner tracks the page as allocated
[ 81.641939][ T5716] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 2, tgid 2 (kthreadd), ts 20418073923, free_ts 20063422199
[ 81.662443][ T5716] post_alloc_hook+0x1ec/0x220
[ 81.667224][ T5716] get_page_from_freelist+0x3607/0x3750
[ 81.672800][ T5716] __alloc_frozen_pages_noprof+0x256/0x690
[ 81.678631][ T5716] alloc_pages_mpol+0x311/0x660
[ 81.683519][ T5716] allocate_slab+0x8f/0x3a0
[ 81.688026][ T5716] ___slab_alloc+0xc35/0x14a0
[ 81.692717][ T5716] __slab_alloc+0x58/0xa0
[ 81.697047][ T5716] __kmalloc_cache_noprof+0x276/0x360
[ 81.702413][ T5716] set_kthread_struct+0xc2/0x330
[ 81.707390][ T5716] copy_process+0x11ed/0x3d40
[ 81.712092][ T5716] kernel_clone+0x223/0x870
[ 81.716599][ T5716] kernel_thread+0x1bc/0x240
[ 81.721209][ T5716] kthreadd+0x60d/0x810
[ 81.725360][ T5716] ret_from_fork+0x4b/0x80
[ 81.729772][ T5716] ret_from_fork_asm+0x1a/0x30
[ 81.734534][ T5716] page last free pid 1 tgid 1 stack trace:
[ 81.740330][ T5716] __free_pages_ok+0xbac/0xe10
[ 81.745091][ T5716] __folio_put+0x2b3/0x360
[ 81.749511][ T5716] free_large_kmalloc+0xfc/0x170
[ 81.754441][ T5716] kfree+0x1fb/0x430
[ 81.758359][ T5716] v4l2_ctrl_handler_free+0x599/0x670
[ 81.763726][ T5716] vivid_free_controls+0x6d/0xe0
[ 81.768659][ T5716] vivid_dev_release+0x33/0x120
[ 81.773507][ T5716] v4l2_device_put+0x7f/0xd0
[ 81.778115][ T5716] vivid_probe+0x5146/0x7cf0
[ 81.782717][ T5716] platform_probe+0x13a/0x1c0
[ 81.787390][ T5716] really_probe+0x2b9/0xad0
[ 81.791890][ T5716] __driver_probe_device+0x1a2/0x390
[ 81.797176][ T5716] driver_probe_device+0x50/0x430
[ 81.802213][ T5716] __driver_attach+0x45f/0x710
[ 81.806995][ T5716] bus_for_each_dev+0x239/0x2b0
[ 81.811849][ T5716] bus_add_driver+0x346/0x670
[ 81.816524][ T5716]
[ 81.818837][ T5716] Memory state around the buggy address:
[ 81.824543][ T5716] ffff88802eb3eb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 81.832595][ T5716] ffff88802eb3eb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 81.840649][ T5716] >ffff88802eb3ec00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 81.848701][ T5716] ^
[ 81.853016][ T5716] ffff88802eb3ec80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 81.861067][ T5716] ffff88802eb3ed00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 81.869152][ T5716] ==================================================================
[ 81.877513][ T5716] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 81.884736][ T5716] CPU: 1 UID: 0 PID: 5716 Comm: syz-executor Not tainted 6.13.0-syzkaller #0
[ 81.893570][ T5716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 81.903644][ T5716] Call Trace:
[ 81.906930][ T5716]
[ 81.909856][ T5716] dump_stack_lvl+0x241/0x360
[ 81.914565][ T5716] ? __pfx_dump_stack_lvl+0x10/0x10
[ 81.919790][ T5716] ? __pfx__printk+0x10/0x10
[ 81.924386][ T5716] ? preempt_schedule+0xe1/0xf0
[ 81.929255][ T5716] ? vscnprintf+0x5d/0x90
[ 81.933582][ T5716] panic+0x349/0x880
[ 81.937514][ T5716] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 81.943670][ T5716] ? check_panic_on_warn+0x21/0xb0
[ 81.948787][ T5716] ? __pfx_panic+0x10/0x10
[ 81.953204][ T5716] ? _raw_spin_unlock_irqrestore+0x130/0x140
[ 81.959205][ T5716] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 81.965552][ T5716] ? print_report+0x502/0x550
[ 81.970240][ T5716] check_panic_on_warn+0x86/0xb0
[ 81.975188][ T5716] ? binder_add_device+0x5f/0xa0
[ 81.980141][ T5716] end_report+0x77/0x150
[ 81.984387][ T5716] kasan_report+0x154/0x180
[ 81.988891][ T5716] ? binder_add_device+0x5f/0xa0
[ 81.993829][ T5716] binder_add_device+0x5f/0xa0
[ 81.998615][ T5716] binderfs_binder_device_create+0x7bf/0x9c0
[ 82.004625][ T5716] binderfs_fill_super+0x944/0xd90
[ 82.009762][ T5716] ? __pfx_binderfs_fill_super+0x10/0x10
[ 82.015404][ T5716] ? shrinker_register+0x160/0x230
[ 82.020966][ T5716] ? sget_fc+0x909/0x9c0
[ 82.025220][ T5716] ? __pfx_set_anon_super_fc+0x10/0x10
[ 82.030773][ T5716] ? __pfx_binderfs_fill_super+0x10/0x10
[ 82.036416][ T5716] get_tree_nodev+0xb7/0x140
[ 82.041016][ T5716] vfs_get_tree+0x90/0x290
[ 82.045434][ T5716] do_new_mount+0x2be/0xb40
[ 82.049943][ T5716] ? __pfx_do_new_mount+0x10/0x10
[ 82.054980][ T5716] __se_sys_mount+0x2d6/0x3c0
[ 82.059664][ T5716] ? lockdep_hardirqs_on_prepare+0x43d/0x7a0
[ 82.065657][ T5716] ? __pfx___se_sys_mount+0x10/0x10
[ 82.070858][ T5716] ? __x64_sys_mount+0x20/0xc0
[ 82.075625][ T5716] do_syscall_64+0x82/0x160
[ 82.080148][ T5716] ? clear_bhb_loop+0x25/0x80
[ 82.084847][ T5716] ? clear_bhb_loop+0x25/0x80
[ 82.089540][ T5716] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 82.095455][ T5716] RIP: 0033:0x7f0fafb8e4ca
[ 82.099891][ T5716] 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
[ 82.119505][ T5716] RSP: 002b:00007ffd96e070c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 82.127956][ T5716] RAX: ffffffffffffffda RBX: 00007f0fafc0e663 RCX: 00007f0fafb8e4ca
[ 82.135933][ T5716] RDX: 00007f0fafc1dd57 RSI: 00007f0fafc0e663 RDI: 00007f0fafc1dd57
[ 82.143902][ T5716] RBP: 00007f0fafc0e85b R08: 0000000000000000 R09: 00000000000001ff
[ 82.151875][ T5716] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0fafbeb1c8
[ 82.159851][ T5716] R13: 00007f0fafbeb1a8 R14: 0000000000000009 R15: 0000000000000000
[ 82.167864][ T5716]
[ 82.171042][ T5716] Kernel Offset: disabled
[ 82.175368][ T5716] 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-build4064415339=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at 9fbd772e8b
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=9fbd772e8b64ff0c8c90bdfb86237aefa530a06c -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250124-163111'" -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=\"9fbd772e8b64ff0c8c90bdfb86237aefa530a06c\"
go: downloading github.com/klauspost/cpuid/v2 v2.2.8
/usr/bin/ld: /tmp/ccm4qkMH.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