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 ffff888031053008 by task syz-executor/5877
CPU: 1 UID: 0 PID: 5877 Comm: syz-executor Not tainted 6.13.0-rc7-next-20250117-syzkaller-09563-g0907e7fb3575 #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: 0033:0x7f51a05874ca
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:00007f51a089ff68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f51a0601ecb RCX: 00007f51a05874ca
RDX: 00007f51a060ec27 RSI: 00007f51a0601ecb RDI: 00007f51a060ec27
RBP: 00007f51a06020c3 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f51a05e41c8
R13: 00007f51a05e41a8 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5861:
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 5861:
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 ffff888031053000
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff888031053000, ffff888031053200)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x31050
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 ffffea0000a8c100 dead000000000002
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801ac41c80 ffffea0000a8c100 dead000000000002
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0000c41401 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 5211, tgid 5211 (udevadm), ts 19957041772, free_ts 19941187367
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
prep_new_page mm/page_alloc.c:1559 [inline]
get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477
__alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4739
alloc_pages_mpol+0x311/0x660 mm/mempolicy.c:2270
alloc_slab_page mm/slub.c:2423 [inline]
allocate_slab+0x8f/0x3a0 mm/slub.c:2587
new_slab mm/slub.c:2640 [inline]
___slab_alloc+0xc27/0x14a0 mm/slub.c:3826
__slab_alloc+0x58/0xa0 mm/slub.c:3916
__slab_alloc_node mm/slub.c:3991 [inline]
slab_alloc_node mm/slub.c:4152 [inline]
__kmalloc_cache_noprof+0x27b/0x390 mm/slub.c:4320
kmalloc_noprof include/linux/slab.h:901 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
kernfs_fop_open+0x3e0/0xd10 fs/kernfs/file.c:623
do_dentry_open+0xdec/0x1960 fs/open.c:955
vfs_open+0x3b/0x370 fs/open.c:1085
do_open fs/namei.c:3828 [inline]
path_openat+0x2c74/0x3580 fs/namei.c:3987
do_filp_open+0x27f/0x4e0 fs/namei.c:4014
do_sys_openat2+0x13e/0x1d0 fs/open.c:1427
do_sys_open fs/open.c:1442 [inline]
__do_sys_openat fs/open.c:1458 [inline]
__se_sys_openat fs/open.c:1453 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1453
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
page last free pid 5212 tgid 5212 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
discard_slab mm/slub.c:2684 [inline]
__put_partials+0x160/0x1c0 mm/slub.c:3153
put_cpu_partial+0x17c/0x250 mm/slub.c:3228
__slab_free+0x290/0x380 mm/slub.c:4479
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4115 [inline]
slab_alloc_node mm/slub.c:4164 [inline]
kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4171
getname_flags+0xb7/0x540 fs/namei.c:139
getname fs/namei.c:223 [inline]
__do_sys_unlink fs/namei.c:4635 [inline]
__se_sys_unlink fs/namei.c:4633 [inline]
__x64_sys_unlink+0x3a/0x50 fs/namei.c:4633
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:
ffff888031052f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888031052f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888031053000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888031053080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888031053100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.10.46' (ED25519) to the list of known hosts.
2025/01/19 02:33:39 ignoring optional flag "sandboxArg"="0"
2025/01/19 02:33:39 parsed 1 programs
[ 63.985687][ T5834] cgroup: Unknown subsys name 'net'
[ 64.092352][ T5834] cgroup: Unknown subsys name 'cpuset'
[ 64.100198][ T5834] cgroup: Unknown subsys name 'rlimit'
[ 65.414368][ T5834] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 67.919802][ T5852] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 67.925901][ T5852] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 67.944118][ T5852] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 67.958005][ T5852] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 67.972152][ T5852] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[ 67.979453][ T5852] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 68.375937][ T5847] 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.
[ 69.395474][ T5877] ==================================================================
[ 69.395512][ T5877] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[ 69.395564][ T5877] Write of size 8 at addr ffff888031053008 by task syz-executor/5877
[ 69.395589][ T5877]
[ 69.395616][ T5877] CPU: 1 UID: 0 PID: 5877 Comm: syz-executor Not tainted 6.13.0-rc7-next-20250117-syzkaller-09563-g0907e7fb3575 #0
[ 69.395632][ T5877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 69.395644][ T5877] Call Trace:
[ 69.395650][ T5877]
[ 69.395656][ T5877] dump_stack_lvl+0x241/0x360
[ 69.395673][ T5877] ? __pfx_dump_stack_lvl+0x10/0x10
[ 69.395687][ T5877] ? __pfx__printk+0x10/0x10
[ 69.395728][ T5877] ? _printk+0xd5/0x120
[ 69.395746][ T5877] ? __virt_addr_valid+0x183/0x530
[ 69.395764][ T5877] ? __virt_addr_valid+0x183/0x530
[ 69.395783][ T5877] print_report+0x169/0x550
[ 69.395803][ T5877] ? __virt_addr_valid+0x183/0x530
[ 69.395821][ T5877] ? __virt_addr_valid+0x183/0x530
[ 69.395838][ T5877] ? __virt_addr_valid+0x45f/0x530
[ 69.395856][ T5877] ? __phys_addr+0xba/0x170
[ 69.395874][ T5877] ? binder_add_device+0x5f/0xa0
[ 69.395888][ T5877] kasan_report+0x143/0x180
[ 69.395908][ T5877] ? binder_add_device+0x5f/0xa0
[ 69.395925][ T5877] binder_add_device+0x5f/0xa0
[ 69.395939][ T5877] binderfs_binder_device_create+0x7bf/0x9c0
[ 69.395957][ T5877] binderfs_fill_super+0x944/0xd90
[ 69.395974][ T5877] ? __pfx_binderfs_fill_super+0x10/0x10
[ 69.395996][ T5877] ? shrinker_register+0x160/0x230
[ 69.396013][ T5877] ? sget_fc+0x909/0x9c0
[ 69.396030][ T5877] ? __pfx_set_anon_super_fc+0x10/0x10
[ 69.396046][ T5877] ? __pfx_binderfs_fill_super+0x10/0x10
[ 69.396060][ T5877] get_tree_nodev+0xb7/0x140
[ 69.396077][ T5877] vfs_get_tree+0x90/0x2b0
[ 69.396096][ T5877] do_new_mount+0x2be/0xb40
[ 69.396117][ T5877] ? __pfx_do_new_mount+0x10/0x10
[ 69.396139][ T5877] __se_sys_mount+0x2d6/0x3c0
[ 69.396153][ T5877] ? lockdep_hardirqs_on_pr
** replaying previous printk message **
[ 69.396153][ T5877] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 69.396179][ T5877] ? __pfx___se_sys_mount+0x10/0x10
[ 69.396193][ T5877] ? do_syscall_64+0x100/0x230
[ 69.396210][ T5877] ? __x64_sys_mount+0x20/0xc0
[ 69.396224][ T5877] do_syscall_64+0xf3/0x230
[ 69.396239][ T5877] ? clear_bhb_loop+0x35/0x90
[ 69.396259][ T5877] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.396282][ T5877] RIP: 0033:0x7f51a05874ca
[ 69.396299][ T5877] 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
[ 69.396311][ T5877] RSP: 002b:00007f51a089ff68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 69.396328][ T5877] RAX: ffffffffffffffda RBX: 00007f51a0601ecb RCX: 00007f51a05874ca
[ 69.396339][ T5877] RDX: 00007f51a060ec27 RSI: 00007f51a0601ecb RDI: 00007f51a060ec27
[ 69.396350][ T5877] RBP: 00007f51a06020c3 R08: 0000000000000000 R09: 0000000000000100
[ 69.396359][ T5877] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f51a05e41c8
[ 69.396369][ T5877] R13: 00007f51a05e41a8 R14: 0000000000000009 R15: 0000000000000000
[ 69.396384][ T5877]
[ 69.396389][ T5877]
[ 69.396664][ T5877] Allocated by task 5861:
[ 69.396681][ T5877] kasan_save_track+0x3f/0x80
[ 69.396718][ T5877] __kasan_kmalloc+0x98/0xb0
[ 69.396743][ T5877] __kmalloc_cache_noprof+0x243/0x390
[ 69.396766][ T5877] binderfs_binder_device_create+0x16c/0x9c0
[ 69.396789][ T5877] binderfs_fill_super+0x944/0xd90
[ 69.396809][ T5877] get_tree_nodev+0xb7/0x140
[ 69.396834][ T5877] vfs_get_tree+0x90/0x2b0
[ 69.396858][ T5877] do_new_mount+0x2be/0xb40
[ 69.396885][ T5877] __se_sys_mount+0x2d6/0x3c0
[ 69.396906][ T5877] do_syscall_64+0xf3/0x230
[ 69.396929][ T5877] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.396955][ T5877]
[ 69.396968][ T5877] Freed by task 5861:
[ 69.396984][ T5877] kasan_save_track+0x3f/0x80
[ 69.397008][ T5877] kasan_save_free_info+0x40/0x50
[ 69.397031][ T5877] __kasan_slab_free+0x59/0x70
[ 69.397056][ T5877] kfree+0x196/0x430
[ 69.397076][ T5877] evict+0x4e8/0x9a0
[ 69.397100][ T5877] __dentry_kill+0x20d/0x630
[ 69.397122][ T5877] shrink_kill+0xa9/0x2c0
[ 69.397143][ T5877] shrink_dentry_list+0x2c0/0x5b0
[ 69.397166][ T5877] shrink_dcache_parent+0xcb/0x3b0
[ 69.397189][ T5877] do_one_tree+0x23/0xe0
[ 69.397211][ T5877] shrink_dcache_for_umount+0xb4/0x180
[ 69.397235][ T5877] generic_shutdown_super+0x6a/0x2d0
[ 69.397259][ T5877] kill_litter_super+0x76/0xb0
[ 69.397283][ T5877] binderfs_kill_super+0x44/0x90
[ 69.397303][ T5877] deactivate_locked_super+0xc4/0x130
[ 69.397327][ T5877] cleanup_mnt+0x41f/0x4b0
[ 69.397350][ T5877] task_work_run+0x24f/0x310
[ 69.397390][ T5877] do_exit+0xa2a/0x28e0
[ 69.397414][ T5877] do_group_exit+0x207/0x2c0
[ 69.397439][ T5877] get_signal+0x16b2/0x1750
[ 69.397460][ T5877] arch_do_signal_or_restart+0x96/0x860
[ 69.397485][ T5877] syscall_exit_to_user_mode+0xce/0x340
[ 69.397509][ T5877] do_syscall_64+0x100/0x230
[ 69.397532][ T5877] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.397557][ T5877]
[ 69.397570][ T5877] The buggy address belongs to the object at ffff888031053000
[ 69.397570][ T5877] which belongs to the cache kmalloc-512 of size 512
[ 69.397592][ T5877] The buggy address is located 8 bytes inside of
[ 69.397592][ T5877] freed 512-byte region [ffff888031053000, ffff888031053200)
[ 69.397616][ T5877]
[ 69.397629][ T5877] The buggy address belongs to the physical page:
[ 69.397645][ T5877] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x31050
[ 69.397680][ T5877] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 69.397710][ T5877] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 69.397737][ T5877] page_type: f5(slab)
[ 69.397760][ T5877] raw: 00fff00000000040 ffff88801ac41c80 ffffea0000a8c100 dead000000000002
[ 69.397782][ T5877] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 69.397804][ T5877] head: 00fff00000000040 ffff88801ac41c80 ffffea0000a8c100 dead000000000002
[ 69.397825][ T5877] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 69.397846][ T5877] head: 00fff00000000002 ffffea0000c41401 ffffffffffffffff 0000000000000000
[ 69.397874][ T5877] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 69.397890][ T5877] page dumped because: kasan: bad access detected
[ 69.397910][ T5877] page_owner tracks the page as allocated
[ 69.397925][ T5877] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5211, tgid 5211 (udevadm), ts 19957041772, free_ts 19941187367
[ 69.397964][ T5877] post_alloc_hook+0x1f4/0x240
[ 69.397990][ T5877] get_page_from_freelist+0x365c/0x37a0
[ 69.398016][ T5877] __alloc_frozen_pages_noprof+0x292/0x710
[ 69.398042][ T5877] alloc_pages_mpol+0x311/0x660
[ 69.398070][ T5877] allocate_slab+0x8f/0x3a0
[ 69.398095][ T5877] ___slab_alloc+0xc27/0x14a0
[ 69.398118][ T5877] __slab_alloc+0x58/0xa0
[ 69.398141][ T5877] __kmalloc_cache_noprof+0x27b/0x390
[ 69.398163][ T5877] kernfs_fop_open+0x3e0/0xd10
[ 69.398187][ T5877] do_dentry_open+0xdec/0x1960
[ 69.398208][ T5877] vfs_open+0x3b/0x370
[ 69.398228][ T5877] path_openat+0x2c74/0x3580
[ 69.398252][ T5877] do_filp_open+0x27f/0x4e0
[ 69.398276][ T5877] do_sys_openat2+0x13e/0x1d0
[ 69.398297][ T5877] __x64_sys_openat+0x247/0x2a0
[ 69.398318][ T5877] do_syscall_64+0xf3/0x230
[ 69.398342][ T5877] page last free pid 5212 tgid 5212 stack trace:
[ 69.398360][ T5877] free_frozen_pages+0xe0d/0x10e0
[ 69.398384][ T5877] __put_partials+0x160/0x1c0
[ 69.398408][ T5877] put_cpu_partial+0x17c/0x250
[ 69.398432][ T5877] __slab_free+0x290/0x380
[ 69.398456][ T5877] qlist_free_all+0x9a/0x140
[ 69.398481][ T5877] kasan_quarantine_reduce+0x14f/0x170
[ 69.398507][ T5877] __kasan_slab_alloc+0x23/0x80
[ 69.398533][ T5877] kmem_cache_alloc_noprof+0x1d9/0x380
[ 69.398555][ T5877] getname_flags+0xb7/0x540
[ 69.398577][ T5877] __x64_sys_unlink+0x3a/0x50
[ 69.398603][ T5877] do_syscall_64+0xf3/0x230
[ 69.398626][ T5877] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.398653][ T5877]
[ 69.398665][ T5877] Memory state around the buggy address:
[ 69.398683][ T5877] ffff888031052f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 69.398716][ T5877] ffff888031052f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 69.398735][ T5877] >ffff888031053000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 69.398751][ T5877] ^
[ 69.398768][ T5877] ffff888031053080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 69.398786][ T5877] ffff888031053100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 69.398803][ T5877] ==================================================================
[ 69.598983][ T5877] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 70.258610][ T5877] CPU: 0 UID: 0 PID: 5877 Comm: syz-executor Not tainted 6.13.0-rc7-next-20250117-syzkaller-09563-g0907e7fb3575 #0
[ 70.270663][ T5877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 70.280708][ T5877] Call Trace:
[ 70.284072][ T5877]
[ 70.286996][ T5877] dump_stack_lvl+0x241/0x360
[ 70.291755][ T5877] ? __pfx_dump_stack_lvl+0x10/0x10
[ 70.297218][ T5877] ? __pfx__printk+0x10/0x10
[ 70.301837][ T5877] ? preempt_schedule+0xe1/0xf0
[ 70.306793][ T5877] ? vscnprintf+0x5d/0x90
[ 70.311125][ T5877] panic+0x349/0x880
[ 70.315205][ T5877] ? check_panic_on_warn+0x21/0xb0
[ 70.320373][ T5877] ? __pfx_panic+0x10/0x10
[ 70.324786][ T5877] ? _raw_spin_unlock_irqrestore+0x130/0x140
[ 70.330770][ T5877] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 70.337100][ T5877] ? print_report+0x502/0x550
[ 70.341783][ T5877] check_panic_on_warn+0x86/0xb0
[ 70.346820][ T5877] ? binder_add_device+0x5f/0xa0
[ 70.351751][ T5877] end_report+0x77/0x160
[ 70.355998][ T5877] kasan_report+0x154/0x180
[ 70.360508][ T5877] ? binder_add_device+0x5f/0xa0
[ 70.365461][ T5877] binder_add_device+0x5f/0xa0
[ 70.370250][ T5877] binderfs_binder_device_create+0x7bf/0x9c0
[ 70.376238][ T5877] binderfs_fill_super+0x944/0xd90
[ 70.381347][ T5877] ? __pfx_binderfs_fill_super+0x10/0x10
[ 70.386980][ T5877] ? shrinker_register+0x160/0x230
[ 70.392085][ T5877] ? sget_fc+0x909/0x9c0
[ 70.396320][ T5877] ? __pfx_set_anon_super_fc+0x10/0x10
[ 70.401771][ T5877] ? __pfx_binderfs_fill_super+0x10/0x10
[ 70.407391][ T5877] get_tree_nodev+0xb7/0x140
[ 70.411973][ T5877] vfs_get_tree+0x90/0x2b0
[ 70.416471][ T5877] do_new_mount+0x2be/0xb40
[ 70.421096][ T5877] ? __pfx_do_new_mount+0x10/0x10
[ 70.426118][ T5877] __se_sys_mount+0x2d6/0x3c0
[ 70.430783][ T5877] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 70.436764][ T5877] ? __pfx___se_sys_mount+0x10/0x10
[ 70.441952][ T5877] ? do_syscall_64+0x100/0x230
[ 70.446970][ T5877] ? __x64_sys_mount+0x20/0xc0
[ 70.451816][ T5877] do_syscall_64+0xf3/0x230
[ 70.456314][ T5877] ? clear_bhb_loop+0x35/0x90
[ 70.460986][ T5877] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 70.466871][ T5877] RIP: 0033:0x7f51a05874ca
[ 70.471380][ T5877] 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
[ 70.491064][ T5877] RSP: 002b:00007f51a089ff68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 70.499472][ T5877] RAX: ffffffffffffffda RBX: 00007f51a0601ecb RCX: 00007f51a05874ca
[ 70.507522][ T5877] RDX: 00007f51a060ec27 RSI: 00007f51a0601ecb RDI: 00007f51a060ec27
[ 70.515482][ T5877] RBP: 00007f51a06020c3 R08: 0000000000000000 R09: 0000000000000100
[ 70.523442][ T5877] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f51a05e41c8
[ 70.531490][ T5877] R13: 00007f51a05e41a8 R14: 0000000000000009 R15: 0000000000000000
[ 70.539544][ T5877]
[ 71.672045][ T5877] Shutting down cpus with NMI
[ 71.677530][ T5877] Kernel Offset: disabled
[ 71.681855][ T5877] 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/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs/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/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-build3120098545=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at d3ccff6372
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/ccTjOn0T.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