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 ffff888034cdbc08 by task syz-exec
Write of size 8 at addr ffff888034cdbc08 by task syz-executor/5848
CPU: 0 UID: 0 PID: 5848 Comm: syz-executor Not tainted 6.13.0-rc7-next-20250120-syzkaller-g1573c8d4cb20-dirty #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: 0033:0x7fa44a1874ca
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:00007ffd0150c508 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fa44a201ecb RCX: 00007fa44a1874ca
RDX: 00007fa44a20ec27 RSI: 00007fa44a201ecb RDI: 00007fa44a20ec27
RBP: 00007fa44a2020c3 R08: 0000000000000000 R09: 00007ffd0150c5b0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa44a1e41c8
R13: 00007fa44a1e41a8 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5850:
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 5850:
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:637
shrink_kill+0xa9/0x2c0 fs/dcache.c:1082
shrink_dentry_list+0x2c0/0x5b0 fs/dcache.c:1109
shrink_dcache_parent+0xcb/0x3b0
do_one_tree+0x23/0xe0 fs/dcache.c:1572
shrink_dcache_for_umount+0xb4/0x180 fs/dcache.c:1589
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 ffff888034cdbc00
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff888034cdbc00, ffff888034cdbe00)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x34cd8
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 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801ac41c80 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0000d33601 ffffffffffffffff 0000000000000000
head: ffff888000000004 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 5215, tgid 5215 (udevd), ts 31837844061, free_ts 31804404977
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:3830 [inline]
path_openat+0x2c81/0x3590 fs/namei.c:3989
do_filp_open+0x27f/0x4e0 fs/namei.c:4016
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 5217 tgid 5217 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_lru_noprof+0x1dd/0x390 mm/slub.c:4183
__d_alloc+0x31/0x670 fs/dcache.c:1658
d_alloc fs/dcache.c:1737 [inline]
d_alloc_parallel+0xdf/0x1630 fs/dcache.c:2501
lookup_open fs/namei.c:3573 [inline]
open_last_lookups fs/namei.c:3750 [inline]
path_openat+0x9e6/0x3590 fs/namei.c:3986
do_filp_open+0x27f/0x4e0 fs/namei.c:4016
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
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffff888034cdbb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888034cdbb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888034cdbc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888034cdbc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888034cdbd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.1.15' (ED25519) to the list of known hosts.
2025/01/20 22:07:46 ignoring optional flag "sandboxArg"="0"
2025/01/20 22:07:47 parsed 1 programs
[ 64.331016][ T5833] cgroup: Unknown subsys name 'net'
[ 64.436347][ T5833] cgroup: Unknown subsys name 'cpuset'
[ 64.444350][ T5833] cgroup: Unknown subsys name 'rlimit'
[ 65.708536][ T5833] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 68.649999][ T1098] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 68.650139][ T1098] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 68.689009][ 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.
[ 68.772309][ T1098] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 68.772373][ T1098] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 68.925941][ T5848] ==================================================================
[ 68.925976][ T5848] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[ 68.926030][ T5848] Write of size 8 at addr ffff888034cdbc08 by task syz-exec
** replaying previous printk message **
[ 68.926030][ T5848] Write of size 8 at addr ffff888034cdbc08 by task syz-executor/5848
[ 68.926054][ T5848]
[ 68.926089][ T5848] CPU: 0 UID: 0 PID: 5848 Comm: syz-executor Not tainted 6.13.0-rc7-next-20250120-syzkaller-g1573c8d4cb20-dirty #0
[ 68.926108][ T5848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 68.926122][ T5848] Call Trace:
[ 68.926128][ T5848]
[ 68.926136][ T5848] dump_stack_lvl+0x241/0x360
[ 68.926165][ T5848] ? __pfx_dump_stack_lvl+0x10/0x10
[ 68.926181][ T5848] ? __pfx__printk+0x10/0x10
[ 68.926204][ T5848] ? _printk+0xd5/0x120
[ 68.926218][ T5848] ? __virt_addr_valid+0x183/0x530
[ 68.926239][ T5848] ? __virt_addr_valid+0x183/0x530
[ 68.926260][ T5848] print_report+0x169/0x550
[ 68.926283][ T5848] ? __virt_addr_valid+0x183/0x530
[ 68.926302][ T5848] ? __virt_addr_valid+0x183/0x530
[ 68.926321][ T5848] ? __virt_addr_valid+0x45f/0x530
[ 68.926342][ T5848] ? __phys_addr+0xba/0x170
[ 68.926363][ T5848] ? binder_add_device+0x5f/0xa0
[ 68.926382][ T5848] kasan_report+0x143/0x180
[ 68.926403][ T5848] ? binder_add_device+0x5f/0xa0
[ 68.926425][ T5848] binder_add_device+0x5f/0xa0
[ 68.926443][ T5848] binderfs_binder_device_create+0x7bf/0x9c0
[ 68.926465][ T5848] binderfs_fill_super+0x944/0xd90
[ 68.926485][ T5848] ? __pfx_binderfs_fill_super+0x10/0x10
[ 68.926512][ T5848] ? shrinker_register+0x160/0x230
[ 68.926531][ T5848] ? sget_fc+0x909/0x9c0
[ 68.926549][ T5848] ? __pfx_set_anon_super_fc+0x10/0x10
[ 68.926568][ T5848] ? __pfx_binderfs_fill_super+0x10/0x10
[ 68.926588][ T5848] get_tree_nodev+0xb7/0x140
[ 68.926607][ T5848] vfs_get_tree+0x90/0x2b0
[ 68.926629][ T5848] do_new_mount+0x2be/0xb40
[ 68.926646][ T5848] ? __pfx_do_new_mount+0x10/0x10
[ 68.926665][ T5848] __se_sys_mount+0x2d6/0x3c0
[ 68.926681][ T5848] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 68.926703][ T5848] ? __pfx___se_sys_mount+0x10/0x10
[ 68.926720][ T5848] ? do_syscall_64+0x100/0x230
[ 68.926742][ T5848] ? __x64_sys_mount+0x20/0xc0
[ 68.926758][ T5848] do_syscall_64+0xf3/0x230
[ 68.926779][ T5848] ? clear_bhb_loop+0x35/0x90
[ 68.926801][ T5848] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.926825][ T5848] RIP: 0033:0x7fa44a1874ca
[ 68.926844][ T5848] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 68.926857][ T5848] RSP: 002b:00007ffd0150c508 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 68.926875][ T5848] RAX: ffffffffffffffda RBX: 00007fa44a201ecb RCX: 00007fa44a1874ca
[ 68.926887][ T5848] RDX: 00007fa44a20ec27 RSI: 00007fa44a201ecb RDI: 00007fa44a20ec27
[ 68.926898][ T5848] RBP: 00007fa44a2020c3 R08: 0000000000000000 R09: 00007ffd0150c5b0
[ 68.926909][ T5848] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa44a1e41c8
[ 68.926919][ T5848] R13: 00007fa44a1e41a8 R14: 0000000000000009 R15: 0000000000000000
[ 68.926935][ T5848]
[ 68.926941][ T5848]
[ 68.927269][ T5848] Allocated by task 5850:
[ 68.927287][ T5848] kasan_save_track+0x3f/0x80
[ 68.927317][ T5848] __kasan_kmalloc+0x98/0xb0
[ 68.927345][ T5848] __kmalloc_cache_noprof+0x243/0x390
[ 68.927371][ T5848] binderfs_binder_device_create+0x16c/0x9c0
[ 68.927398][ T5848] binderfs_fill_super+0x944/0xd90
[ 68.927424][ T5848] get_tree_nodev+0xb7/0x140
[ 68.927452][ T5848] vfs_get_tree+0x90/0x2b0
[ 68.927479][ T5848] do_new_mount+0x2be/0xb40
[ 68.927502][ T5848] __se_sys_mount+0x2d6/0x3c0
[ 68.927526][ T5848] do_syscall_64+0xf3/0x230
[ 68.927554][ T5848] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.927582][ T5848]
[ 68.927595][ T5848] Freed by task 5850:
[ 68.927612][ T5848] kasan_save_track+0x3f/0x80
[ 68.927640][ T5848] kasan_save_free_info+0x40/0x50
[ 68.927666][ T5848] __kasan_slab_free+0x59/0x70
[ 68.927692][ T5848] kfree+0x196/0x430
[ 68.927712][ T5848] evict+0x4e8/0x9a0
[ 68.927736][ T5848] __dentry_kill+0x20d/0x630
[ 68.927761][ T5848] shrink_kill+0xa9/0x2c0
[ 68.927781][ T5848] shrink_dentry_list+0x2c0/0x5b0
[ 68.927804][ T5848] shrink_dcache_parent+0xcb/0x3b0
[ 68.927827][ T5848] do_one_tree+0x23/0xe0
[ 68.927850][ T5848] shrink_dcache_for_umount+0xb4/0x180
[ 68.927872][ T5848] generic_shutdown_super+0x6a/0x2d0
[ 68.927893][ T5848] kill_litter_super+0x76/0xb0
[ 68.927914][ T5848] binderfs_kill_super+0x44/0x90
[ 68.927936][ T5848] deactivate_locked_super+0xc4/0x130
[ 68.927959][ T5848] cleanup_mnt+0x41f/0x4b0
[ 68.927981][ T5848] task_work_run+0x24f/0x310
[ 68.928008][ T5848] do_exit+0xa2a/0x28e0
[ 68.928031][ T5848] do_group_exit+0x207/0x2c0
[ 68.928055][ T5848] get_signal+0x16b2/0x1750
[ 68.928074][ T5848] arch_do_signal_or_restart+0x96/0x860
[ 68.928100][ T5848] syscall_exit_to_user_mode+0xce/0x340
[ 68.928125][ T5848] do_syscall_64+0x100/0x230
[ 68.928161][ T5848] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.928185][ T5848]
[ 68.928196][ T5848] The buggy address belongs to the object at ffff888034cdbc00
[ 68.928196][ T5848] which belongs to the cache kmalloc-512 of size 512
[ 68.928219][ T5848] The buggy address is located 8 bytes inside of
[ 68.928219][ T5848] freed 512-byte region [ffff888034cdbc00, ffff888034cdbe00)
[ 68.928245][ T5848]
[ 68.928259][ T5848] The buggy address belongs to the physical page:
[ 68.928275][ T5848] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x34cd8
[ 68.928307][ T5848] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 68.928327][ T5848] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 68.928354][ T5848] page_type: f5(slab)
[ 68.928377][ T5848] raw: 00fff00000000040 ffff88801ac41c80 dead000000000100 dead000000000122
[ 68.928397][ T5848] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 68.928418][ T5848] head: 00fff00000000040 ffff88801ac41c80 dead000000000100 dead000000000122
[ 68.928438][ T5848] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 68.928460][ T5848] head: 00fff00000000002 ffffea0000d33601 ffffffffffffffff 0000000000000000
[ 68.928481][ T5848] head: ffff888000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 68.928497][ T5848] page dumped because: kasan: bad access detected
[ 68.928517][ T5848] page_owner tracks the page as allocated
[ 68.928533][ T5848] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5215, tgid 5215 (udevd), ts 31837844061, free_ts 31804404977
[ 68.928569][ T5848] post_alloc_hook+0x1f4/0x240
[ 68.928596][ T5848] get_page_from_freelist+0x365c/0x37a0
[ 68.928622][ T5848] __alloc_frozen_pages_noprof+0x292/0x710
[ 68.928649][ T5848] alloc_pages_mpol+0x311/0x660
[ 68.928671][ T5848] allocate_slab+0x8f/0x3a0
[ 68.928696][ T5848] ___slab_alloc+0xc27/0x14a0
[ 68.928719][ T5848] __slab_alloc+0x58/0xa0
[ 68.928743][ T5848] __kmalloc_cache_noprof+0x27b/0x390
[ 68.928767][ T5848] kernfs_fop_open+0x3e0/0xd10
[ 68.928793][ T5848] do_dentry_open+0xdec/0x1960
[ 68.928815][ T5848] vfs_open+0x3b/0x370
[ 68.928834][ T5848] path_openat+0x2c81/0x3590
[ 68.928859][ T5848] do_filp_open+0x27f/0x4e0
[ 68.928884][ T5848] do_sys_openat2+0x13e/0x1d0
[ 68.928905][ T5848] __x64_sys_openat+0x247/0x2a0
[ 68.928926][ T5848] do_syscall_64+0xf3/0x230
[ 68.928950][ T5848] page last free pid 5217 tgid 5217 stack trace:
[ 68.928965][ T5848] free_frozen_pages+0xe0d/0x10e0
[ 68.928986][ T5848] __put_partials+0x160/0x1c0
[ 68.929008][ T5848] put_cpu_partial+0x17c/0x250
[ 68.929030][ T5848] __slab_free+0x290/0x380
[ 68.929054][ T5848] qlist_free_all+0x9a/0x140
[ 68.929077][ T5848] kasan_quarantine_reduce+0x14f/0x170
[ 68.929099][ T5848] __kasan_slab_alloc+0x23/0x80
[ 68.929125][ T5848] kmem_cache_alloc_lru_noprof+0x1dd/0x390
[ 68.929147][ T5848] __d_alloc+0x31/0x670
[ 68.929181][ T5848] d_alloc_parallel+0xdf/0x1630
[ 68.929207][ T5848] path_openat+0x9e6/0x3590
[ 68.929233][ T5848] do_filp_open+0x27f/0x4e0
[ 68.929254][ T5848] do_sys_openat2+0x13e/0x1d0
[ 68.929276][ T5848] __x64_sys_openat+0x247/0x2a0
[ 68.929299][ T5848] do_syscall_64+0xf3/0x230
[ 68.929323][ T5848] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.929350][ T5848]
[ 68.929363][ T5848] Memory state around the buggy address:
[ 68.929380][ T5848] ffff888034cdbb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 68.929399][ T5848] ffff888034cdbb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 68.929417][ T5848] >ffff888034cdbc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.929434][ T5848] ^
[ 68.929451][ T5848] ffff888034cdbc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.929469][ T5848] ffff888034cdbd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.929485][ T5848] ==================================================================
[ 68.954275][ T5848] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 69.810719][ T5848] CPU: 0 UID: 0 PID: 5848 Comm: syz-executor Not tainted 6.13.0-rc7-next-20250120-syzkaller-g1573c8d4cb20-dirty #0
[ 69.823128][ T5848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 69.833504][ T5848] Call Trace:
[ 69.836875][ T5848]
[ 69.840188][ T5848] dump_stack_lvl+0x241/0x360
[ 69.844973][ T5848] ? __pfx_dump_stack_lvl+0x10/0x10
[ 69.850165][ T5848] ? __pfx__printk+0x10/0x10
[ 69.854752][ T5848] ? preempt_schedule+0xe1/0xf0
[ 69.859697][ T5848] ? vscnprintf+0x5d/0x90
[ 69.864053][ T5848] panic+0x349/0x880
[ 69.867955][ T5848] ? check_panic_on_warn+0x21/0xb0
[ 69.873246][ T5848] ? __pfx_panic+0x10/0x10
[ 69.878123][ T5848] ? _raw_spin_unlock_irqrestore+0x130/0x140
[ 69.884096][ T5848] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 69.890507][ T5848] ? print_report+0x502/0x550
[ 69.895190][ T5848] check_panic_on_warn+0x86/0xb0
[ 69.900131][ T5848] ? binder_add_device+0x5f/0xa0
[ 69.905077][ T5848] end_report+0x77/0x160
[ 69.909403][ T5848] kasan_report+0x154/0x180
[ 69.913902][ T5848] ? binder_add_device+0x5f/0xa0
[ 69.918838][ T5848] binder_add_device+0x5f/0xa0
[ 69.923596][ T5848] binderfs_binder_device_create+0x7bf/0x9c0
[ 69.929575][ T5848] binderfs_fill_super+0x944/0xd90
[ 69.934700][ T5848] ? __pfx_binderfs_fill_super+0x10/0x10
[ 69.940357][ T5848] ? shrinker_register+0x160/0x230
[ 69.945473][ T5848] ? sget_fc+0x909/0x9c0
[ 69.949715][ T5848] ? __pfx_set_anon_super_fc+0x10/0x10
[ 69.955218][ T5848] ? __pfx_binderfs_fill_super+0x10/0x10
[ 69.961068][ T5848] get_tree_nodev+0xb7/0x140
[ 69.965836][ T5848] vfs_get_tree+0x90/0x2b0
[ 69.970338][ T5848] do_new_mount+0x2be/0xb40
[ 69.974892][ T5848] ? __pfx_do_new_mount+0x10/0x10
[ 69.979911][ T5848] __se_sys_mount+0x2d6/0x3c0
[ 69.984600][ T5848] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 69.990598][ T5848] ? __pfx___se_sys_mount+0x10/0x10
[ 69.995797][ T5848] ? do_syscall_64+0x100/0x230
[ 70.000654][ T5848] ? __x64_sys_mount+0x20/0xc0
[ 70.005419][ T5848] do_syscall_64+0xf3/0x230
[ 70.010194][ T5848] ? clear_bhb_loop+0x35/0x90
[ 70.014957][ T5848] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 70.020857][ T5848] RIP: 0033:0x7fa44a1874ca
[ 70.025274][ T5848] 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
[ 70.045155][ T5848] RSP: 002b:00007ffd0150c508 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 70.053751][ T5848] RAX: ffffffffffffffda RBX: 00007fa44a201ecb RCX: 00007fa44a1874ca
[ 70.061815][ T5848] RDX: 00007fa44a20ec27 RSI: 00007fa44a201ecb RDI: 00007fa44a20ec27
[ 70.070166][ T5848] RBP: 00007fa44a2020c3 R08: 0000000000000000 R09: 00007ffd0150c5b0
[ 70.078572][ T5848] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa44a1e41c8
[ 70.086709][ T5848] R13: 00007fa44a1e41a8 R14: 0000000000000009 R15: 0000000000000000
[ 70.095034][ T5848]
[ 71.223973][ T5848] Shutting down cpus with NMI
[ 71.229239][ T5848] Kernel Offset: disabled
[ 71.233647][ T5848] 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-build3987244561=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at f3558dbf03
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=f3558dbf032eab2b77c1cb11b9ce2baffe7838d3 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250103-110009'" "-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=\"f3558dbf032eab2b77c1cb11b9ce2baffe7838d3\"
/usr/bin/ld: /tmp/cc9QesS4.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