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 ffff888024f0d408 by task syz-executor/5836
CPU: 0 UID: 0 PID: 5836 Comm: syz-executor Not tainted 6.13.0-syzkaller-08997-gf34b580514c9 #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: 0033:0x7f431ff816ba
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:00007fff6b65d348 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f431fff408b RCX: 00007f431ff816ba
RDX: 00007f431ffff70c RSI: 00007f431fff408b RDI: 00007f431ffff70c
RBP: 00007f431fff4283 R08: 0000000000000000 R09: 00007fff6b65d3f0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f431ffde1c8
R13: 00007f431ffde1a8 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5827:
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 5827:
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: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 ffff888024f0d400
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff888024f0d400, ffff888024f0d600)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x24f0c
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801ac41c80 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801ac41c80 0000000000000000 dead000000000001
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea000093c301 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 6942807533, free_ts 0
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+0x3651/0x37a0 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]
drm_atomic_helper_setup_commit+0x1cf/0x1480 drivers/gpu/drm/drm_atomic_helper.c:2288
drm_atomic_helper_commit+0x62/0x9f0 drivers/gpu/drm/drm_atomic_helper.c:2023
drm_atomic_commit+0x294/0x2f0 drivers/gpu/drm/drm_atomic.c:1518
drm_client_modeset_commit_atomic+0x670/0x7d0 drivers/gpu/drm/drm_client_modeset.c:1079
drm_client_modeset_commit_locked+0xe0/0x520 drivers/gpu/drm/drm_client_modeset.c:1182
pan_display_atomic drivers/gpu/drm/drm_fb_helper.c:1379 [inline]
drm_fb_helper_pan_display+0x3e8/0xc20 drivers/gpu/drm/drm_fb_helper.c:1439
fb_pan_display+0x3a3/0x680 drivers/video/fbdev/core/fbmem.c:191
bit_update_start+0x4d/0x1c0 drivers/video/fbdev/core/bitblit.c:381
page_owner free stack trace missing
Memory state around the buggy address:
ffff888024f0d300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888024f0d380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888024f0d400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888024f0d480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888024f0d500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.10.17' (ED25519) to the list of known hosts.
2025/01/28 03:31:27 ignoring optional flag "sandboxArg"="0"
2025/01/28 03:31:27 parsed 1 programs
[ 66.635219][ T5818] cgroup: Unknown subsys name 'net'
[ 66.773453][ T5818] cgroup: Unknown subsys name 'cpuset'
[ 66.781965][ T5818] cgroup: Unknown subsys name 'rlimit'
[ 68.025452][ T5818] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 70.496791][ T54] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 70.506217][ T54] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 70.514371][ T54] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 70.522942][ T54] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 70.530880][ T54] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[ 70.538588][ T54] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 70.624429][ T5827] 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.
[ 70.820035][ T3555] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 70.828011][ T3555] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 70.876896][ T52] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 70.885969][ T52] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 70.902749][ T5836] ==================================================================
[ 70.911015][ T5836] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[ 70.918757][ T5836] Write of size 8 at addr ffff888024f0d408 by task syz-executor/5836
[ 70.926903][ T5836]
[ 70.929233][ T5836] CPU: 0 UID: 0 PID: 5836 Comm: syz-executor Not tainted 6.13.0-syzkaller-08997-gf34b580514c9 #0
[ 70.929245][ T5836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 70.929254][ T5836] Call Trace:
[ 70.929261][ T5836]
[ 70.929266][ T5836] dump_stack_lvl+0x241/0x360
[ 70.929279][ T5836] ? __pfx_dump_stack_lvl+0x10/0x10
[ 70.929288][ T5836] ? __pfx__printk+0x10/0x10
[ 70.929301][ T5836] ? _printk+0xd5/0x120
[ 70.929313][ T5836] ? __virt_addr_valid+0x183/0x530
[ 70.929326][ T5836] ? __virt_addr_valid+0x183/0x530
[ 70.929338][ T5836] print_report+0x169/0x550
[ 70.929349][ T5836] ? __virt_addr_valid+0x183/0x530
[ 70.929360][ T5836] ? __virt_addr_valid+0x183/0x530
[ 70.929372][ T5836] ? __virt_addr_valid+0x45f/0x530
[ 70.929383][ T5836] ? __phys_addr+0xba/0x170
[ 70.929395][ T5836] ? binder_add_device+0x5f/0xa0
[ 70.929406][ T5836] kasan_report+0x143/0x180
[ 70.929417][ T5836] ? binder_add_device+0x5f/0xa0
[ 70.929429][ T5836] binder_add_device+0x5f/0xa0
[ 70.929440][ T5836] binderfs_binder_device_create+0x7bf/0x9c0
[ 70.929453][ T5836] binderfs_fill_super+0x944/0xd90
[ 70.929465][ T5836] ? __pfx_binderfs_fill_super+0x10/0x10
[ 70.929480][ T5836] ? shrinker_register+0x160/0x230
[ 70.929494][ T5836] ? sget_fc+0x909/0x9c0
[ 70.929508][ T5836] ? __pfx_set_anon_super_fc+0x10/0x10
[ 70.929516][ T5836] ? __pfx_binderfs_fill_super+0x10/0x10
[ 70.929527][ T5836] get_tree_nodev+0xb7/0x140
[ 70.929535][ T5836] vfs_get_tree+0x90/0x2b0
[ 70.929545][ T5836] do_new_mount+0x2be/0xb40
[ 70.929557][ T5836] ? __pfx_do_new_mount+0x10/0x10
[ 70.929569][ T5836] __se_sys_mount+0x2d6/0x3c0
[ 70.929580][ T5836] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 70.929593][ T5836] ? __pfx___se_sys_mount+0x10/0x10
[ 70.929604][ T5836] ? do_syscall_64+0x100/0x230
[ 70.929618][ T5836] ? __x64_sys_mount+0x20/0xc0
[ 70.929629][ T5836] do_syscall_64+0xf3/0x230
[ 70.929641][ T5836] ? clear_bhb_loop+0x35/0x90
[ 70.929655][ T5836] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 70.929667][ T5836] RIP: 0033:0x7f431ff816ba
[ 70.929680][ T5836] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 70.929687][ T5836] RSP: 002b:00007fff6b65d348 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 70.929698][ T5836] RAX: ffffffffffffffda RBX: 00007f431fff408b RCX: 00007f431ff816ba
[ 70.929705][ T5836] RDX: 00007f431ffff70c RSI: 00007f431fff408b RDI: 00007f431ffff70c
[ 70.929711][ T5836] RBP: 00007f431fff4283 R08: 0000000000000000 R09: 00007fff6b65d3f0
[ 70.929717][ T5836] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f431ffde1c8
[ 70.929723][ T5836] R13: 00007f431ffde1a8 R14: 0000000000000009 R15: 0000000000000000
[ 70.929731][ T5836]
[ 70.929734][ T5836]
[ 71.203587][ T5836] Allocated by task 5827:
[ 71.207893][ T5836] kasan_save_track+0x3f/0x80
[ 71.212574][ T5836] __kasan_kmalloc+0x98/0xb0
[ 71.217151][ T5836] __kmalloc_cache_noprof+0x243/0x390
[ 71.222516][ T5836] binderfs_binder_device_create+0x16c/0x9c0
[ 71.228594][ T5836] binderfs_fill_super+0x944/0xd90
[ 71.233773][ T5836] get_tree_nodev+0xb7/0x140
[ 71.238349][ T5836] vfs_get_tree+0x90/0x2b0
[ 71.242841][ T5836] do_new_mount+0x2be/0xb40
[ 71.247415][ T5836] __se_sys_mount+0x2d6/0x3c0
[ 71.252179][ T5836] do_syscall_64+0xf3/0x230
[ 71.256664][ T5836] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 71.262547][ T5836]
[ 71.264855][ T5836] Freed by task 5827:
[ 71.268821][ T5836] kasan_save_track+0x3f/0x80
[ 71.273489][ T5836] kasan_save_free_info+0x40/0x50
[ 71.278520][ T5836] __kasan_slab_free+0x59/0x70
[ 71.283509][ T5836] kfree+0x196/0x430
[ 71.287412][ T5836] evict+0x4e8/0x9a0
[ 71.291303][ T5836] __dentry_kill+0x20d/0x630
[ 71.295885][ T5836] shrink_kill+0xa9/0x2c0
[ 71.300210][ T5836] shrink_dentry_list+0x2c0/0x5b0
[ 71.305247][ T5836] shrink_dcache_parent+0xcb/0x3b0
[ 71.310358][ T5836] do_one_tree+0x23/0xe0
[ 71.314587][ T5836] shrink_dcache_for_umount+0xb4/0x180
[ 71.320032][ T5836] generic_shutdown_super+0x6a/0x2d0
[ 71.325306][ T5836] kill_litter_super+0x76/0xb0
[ 71.330050][ T5836] binderfs_kill_super+0x44/0x90
[ 71.334988][ T5836] deactivate_locked_super+0xc4/0x130
[ 71.340408][ T5836] cleanup_mnt+0x41f/0x4b0
[ 71.344841][ T5836] task_work_run+0x24f/0x310
[ 71.349530][ T5836] do_exit+0xa2a/0x28e0
[ 71.353880][ T5836] do_group_exit+0x207/0x2c0
[ 71.358500][ T5836] get_signal+0x16b2/0x1750
[ 71.363005][ T5836] arch_do_signal_or_restart+0x96/0x860
[ 71.368646][ T5836] syscall_exit_to_user_mode+0xce/0x340
[ 71.374181][ T5836] do_syscall_64+0x100/0x230
[ 71.378764][ T5836] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 71.384651][ T5836]
[ 71.386976][ T5836] The buggy address belongs to the object at ffff888024f0d400
[ 71.386976][ T5836] which belongs to the cache kmalloc-512 of size 512
[ 71.401021][ T5836] The buggy address is located 8 bytes inside of
[ 71.401021][ T5836] freed 512-byte region [ffff888024f0d400, ffff888024f0d600)
[ 71.414810][ T5836]
[ 71.417127][ T5836] The buggy address belongs to the physical page:
[ 71.423554][ T5836] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x24f0c
[ 71.432393][ T5836] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 71.440874][ T5836] anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 71.448951][ T5836] page_type: f5(slab)
[ 71.453005][ T5836] raw: 00fff00000000040 ffff88801ac41c80 0000000000000000 dead000000000001
[ 71.461569][ T5836] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 71.470248][ T5836] head: 00fff00000000040 ffff88801ac41c80 0000000000000000 dead000000000001
[ 71.478901][ T5836] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 71.487553][ T5836] head: 00fff00000000002 ffffea000093c301 ffffffffffffffff 0000000000000000
[ 71.496474][ T5836] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 71.505126][ T5836] page dumped because: kasan: bad access detected
[ 71.511536][ T5836] page_owner tracks the page as allocated
[ 71.517348][ T5836] 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 6942807533, free_ts 0
[ 71.537072][ T5836] post_alloc_hook+0x1f4/0x240
[ 71.541928][ T5836] get_page_from_freelist+0x3651/0x37a0
[ 71.547477][ T5836] __alloc_frozen_pages_noprof+0x292/0x710
[ 71.553276][ T5836] alloc_pages_mpol+0x311/0x660
[ 71.558111][ T5836] allocate_slab+0x8f/0x3a0
[ 71.562597][ T5836] ___slab_alloc+0xc27/0x14a0
[ 71.567260][ T5836] __slab_alloc+0x58/0xa0
[ 71.571574][ T5836] __kmalloc_cache_noprof+0x27b/0x390
[ 71.576936][ T5836] drm_atomic_helper_setup_commit+0x1cf/0x1480
[ 71.583087][ T5836] drm_atomic_helper_commit+0x62/0x9f0
[ 71.588643][ T5836] drm_atomic_commit+0x294/0x2f0
[ 71.593573][ T5836] drm_client_modeset_commit_atomic+0x670/0x7d0
[ 71.599827][ T5836] drm_client_modeset_commit_locked+0xe0/0x520
[ 71.605999][ T5836] drm_fb_helper_pan_display+0x3e8/0xc20
[ 71.611624][ T5836] fb_pan_display+0x3a3/0x680
[ 71.616288][ T5836] bit_update_start+0x4d/0x1c0
[ 71.621047][ T5836] page_owner free stack trace missing
[ 71.626853][ T5836]
[ 71.629156][ T5836] Memory state around the buggy address:
[ 71.634787][ T5836] ffff888024f0d300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 71.642851][ T5836] ffff888024f0d380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 71.650894][ T5836] >ffff888024f0d400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 71.658941][ T5836] ^
[ 71.663256][ T5836] ffff888024f0d480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 71.671304][ T5836] ffff888024f0d500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 71.679369][ T5836] ==================================================================
[ 71.690447][ T5836] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 71.697678][ T5836] CPU: 0 UID: 0 PID: 5836 Comm: syz-executor Not tainted 6.13.0-syzkaller-08997-gf34b580514c9 #0
[ 71.708184][ T5836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 71.718235][ T5836] Call Trace:
[ 71.721507][ T5836]
[ 71.724423][ T5836] dump_stack_lvl+0x241/0x360
[ 71.729089][ T5836] ? __pfx_dump_stack_lvl+0x10/0x10
[ 71.734277][ T5836] ? __pfx__printk+0x10/0x10
[ 71.738876][ T5836] ? preempt_schedule+0xe1/0xf0
[ 71.743715][ T5836] ? vscnprintf+0x5d/0x90
[ 71.748038][ T5836] panic+0x349/0x880
[ 71.751961][ T5836] ? check_panic_on_warn+0x21/0xb0
[ 71.757120][ T5836] ? __pfx_panic+0x10/0x10
[ 71.761727][ T5836] ? _raw_spin_unlock_irqrestore+0x130/0x140
[ 71.767716][ T5836] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 71.774038][ T5836] ? print_report+0x502/0x550
[ 71.778707][ T5836] check_panic_on_warn+0x86/0xb0
[ 71.783645][ T5836] ? binder_add_device+0x5f/0xa0
[ 71.788581][ T5836] end_report+0x77/0x160
[ 71.792913][ T5836] kasan_report+0x154/0x180
[ 71.797443][ T5836] ? binder_add_device+0x5f/0xa0
[ 71.802391][ T5836] binder_add_device+0x5f/0xa0
[ 71.807176][ T5836] binderfs_binder_device_create+0x7bf/0x9c0
[ 71.813170][ T5836] binderfs_fill_super+0x944/0xd90
[ 71.818283][ T5836] ? __pfx_binderfs_fill_super+0x10/0x10
[ 71.823918][ T5836] ? shrinker_register+0x160/0x230
[ 71.829042][ T5836] ? sget_fc+0x909/0x9c0
[ 71.833285][ T5836] ? __pfx_set_anon_super_fc+0x10/0x10
[ 71.838740][ T5836] ? __pfx_binderfs_fill_super+0x10/0x10
[ 71.844367][ T5836] get_tree_nodev+0xb7/0x140
[ 71.848988][ T5836] vfs_get_tree+0x90/0x2b0
[ 71.853416][ T5836] do_new_mount+0x2be/0xb40
[ 71.857915][ T5836] ? __pfx_do_new_mount+0x10/0x10
[ 71.863028][ T5836] __se_sys_mount+0x2d6/0x3c0
[ 71.867717][ T5836] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 71.873692][ T5836] ? __pfx___se_sys_mount+0x10/0x10
[ 71.878884][ T5836] ? do_syscall_64+0x100/0x230
[ 71.883672][ T5836] ? __x64_sys_mount+0x20/0xc0
[ 71.888582][ T5836] do_syscall_64+0xf3/0x230
[ 71.893115][ T5836] ? clear_bhb_loop+0x35/0x90
[ 71.897878][ T5836] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 71.903942][ T5836] RIP: 0033:0x7f431ff816ba
[ 71.908353][ T5836] 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
[ 71.928055][ T5836] RSP: 002b:00007fff6b65d348 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 71.936468][ T5836] RAX: ffffffffffffffda RBX: 00007f431fff408b RCX: 00007f431ff816ba
[ 71.944482][ T5836] RDX: 00007f431ffff70c RSI: 00007f431fff408b RDI: 00007f431ffff70c
[ 71.952459][ T5836] RBP: 00007f431fff4283 R08: 0000000000000000 R09: 00007fff6b65d3f0
[ 71.960425][ T5836] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f431ffde1c8
[ 71.968387][ T5836] R13: 00007f431ffde1a8 R14: 0000000000000009 R15: 0000000000000000
[ 71.976474][ T5836]
[ 71.979770][ T5836] Kernel Offset: disabled
[ 71.984127][ T5836] 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-build543335649=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at cfc402b4e6
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=cfc402b4e65a6aab3a2555765bda8dc12c99a348 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241209-234506'" "-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=\"cfc402b4e65a6aab3a2555765bda8dc12c99a348\"
/usr/bin/ld: /tmp/ccRJFQF0.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