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 ffff888034f6b408 by task syz-executor/5846
CPU: 1 UID: 0 PID: 5846 Comm: syz-executor Not tainted 6.13.0-next-20250124-syzkaller-10205-g5ffa57f6eece #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: 0033:0x7f8dc13816ba
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:00007ffc9514fac8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8dc13f3d49 RCX: 00007f8dc13816ba
RDX: 00007f8dc13ff2fa RSI: 00007f8dc13f3d49 RDI: 00007f8dc13ff2fa
RBP: 00007f8dc13f3f58 R08: 0000000000000000 R09: 00000000000001ff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8dc13de068
R13: 00007f8dc13de048 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5839:
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 5839:
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 ffff888034f6b400
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff888034f6b400, ffff888034f6b600)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x34f68
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 ffffea0000b27800 0000000000000002
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801ac41c80 ffffea0000b27800 0000000000000002
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0000d3da01 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 5206, tgid 5206 (udevd), ts 34458506319, free_ts 34433767025
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 5206 tgid 5206 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
__slab_free+0x2c2/0x380 mm/slub.c:4520
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]
__do_kmalloc_node mm/slub.c:4293 [inline]
__kmalloc_noprof+0x236/0x4c0 mm/slub.c:4306
kmalloc_noprof include/linux/slab.h:905 [inline]
tomoyo_realpath_from_path+0xcf/0x5e0 security/tomoyo/realpath.c:251
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_perm+0x2b7/0x740 security/tomoyo/file.c:822
security_inode_getattr+0x130/0x330 security/security.c:2377
vfs_getattr+0x2a/0x3a0 fs/stat.c:243
vfs_fstat fs/stat.c:265 [inline]
vfs_fstatat+0xa8/0x130 fs/stat.c:364
__do_sys_newfstatat fs/stat.c:530 [inline]
__se_sys_newfstatat fs/stat.c:524 [inline]
__x64_sys_newfstatat+0x117/0x190 fs/stat.c:524
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:
ffff888034f6b300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888034f6b380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888034f6b400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888034f6b480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888034f6b500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.1.170' (ED25519) to the list of known hosts.
2025/01/26 07:29:25 ignoring optional flag "sandboxArg"="0"
2025/01/26 07:29:25 parsed 1 programs
[ 65.361002][ T5829] cgroup: Unknown subsys name 'net'
[ 65.493895][ T5829] cgroup: Unknown subsys name 'cpuset'
[ 65.504279][ T5829] cgroup: Unknown subsys name 'rlimit'
[ 66.804725][ T5829] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 69.118594][ T5839] 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.
[ 69.373506][ T5846] ==================================================================
[ 69.381649][ T5846] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[ 69.389420][ T5846] Write of size 8 at addr ffff888034f6b408 by task syz-executor/5846
[ 69.397511][ T5846]
[ 69.399955][ T5846] CPU: 1 UID: 0 PID: 5846 Comm: syz-executor Not tainted 6.13.0-next-20250124-syzkaller-10205-g5ffa57f6eece #0
[ 69.399968][ T5846] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 69.399978][ T5846] Call Trace:
[ 69.399984][ T5846]
[ 69.399992][ T5846] dump_stack_lvl+0x241/0x360
[ 69.400012][ T5846] ? __pfx_dump_stack_lvl+0x10/0x10
[ 69.400025][ T5846] ? __pfx__printk+0x10/0x10
[ 69.400037][ T5846] ? _printk+0xd5/0x120
[ 69.400048][ T5846] ? __virt_addr_valid+0x183/0x530
[ 69.400067][ T5846] ? __virt_addr_valid+0x183/0x530
[ 69.400085][ T5846] print_report+0x169/0x550
[ 69.400105][ T5846] ? __virt_addr_valid+0x183/0x530
[ 69.400122][ T5846] ? __virt_addr_valid+0x183/0x530
[ 69.400139][ T5846] ? __virt_addr_valid+0x45f/0x530
[ 69.400157][ T5846] ? __phys_addr+0xba/0x170
[ 69.400175][ T5846] ? binder_add_device+0x5f/0xa0
[ 69.400193][ T5846] kasan_report+0x143/0x180
[ 69.400213][ T5846] ? binder_add_device+0x5f/0xa0
[ 69.400233][ T5846] binder_add_device+0x5f/0xa0
[ 69.400255][ T5846] binderfs_binder_device_create+0x7bf/0x9c0
[ 69.400277][ T5846] binderfs_fill_super+0x944/0xd90
[ 69.400301][ T5846] ? __pfx_binderfs_fill_super+0x10/0x10
[ 69.400326][ T5846] ? shrinker_register+0x160/0x230
[ 69.400343][ T5846] ? sget_fc+0x909/0x9c0
[ 69.400358][ T5846] ? __pfx_set_anon_super_fc+0x10/0x10
[ 69.400373][ T5846] ? __pfx_binderfs_fill_super+0x10/0x10
[ 69.400389][ T5846] get_tree_nodev+0xb7/0x140
[ 69.400405][ T5846] vfs_get_tree+0x90/0x2b0
[ 69.400422][ T5846] do_new_mount+0x2be/0xb40
[ 69.400435][ T5846] ? __pfx_do_new_mount+0x10/0x10
[ 69.400450][ T5846] __se_sys_mount+0x2d6/0x3c0
[ 69.400462][ T5846] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 69.400479][ T5846] ? __pfx___se_sys_mount+0x10/0x10
[ 69.400492][ T5846] ? do_syscall_64+0x100/0x230
[ 69.400505][ T5846] ? __x64_sys_mount+0x20/0xc0
[ 69.400518][ T5846] do_syscall_64+0xf3/0x230
[ 69.400531][ T5846] ? clear_bhb_loop+0x35/0x90
[ 69.400548][ T5846] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.400573][ T5846] RIP: 0033:0x7f8dc13816ba
[ 69.400589][ T5846] 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
[ 69.400599][ T5846] RSP: 002b:00007ffc9514fac8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 69.400614][ T5846] RAX: ffffffffffffffda RBX: 00007f8dc13f3d49 RCX: 00007f8dc13816ba
[ 69.400661][ T5846] RDX: 00007f8dc13ff2fa RSI: 00007f8dc13f3d49 RDI: 00007f8dc13ff2fa
[ 69.400670][ T5846] RBP: 00007f8dc13f3f58 R08: 0000000000000000 R09: 00000000000001ff
[ 69.400678][ T5846] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8dc13de068
[ 69.400686][ T5846] R13: 00007f8dc13de048 R14: 0000000000000009 R15: 0000000000000000
[ 69.400699][ T5846]
[ 69.400703][ T5846]
[ 69.678855][ T5846] Allocated by task 5839:
[ 69.683183][ T5846] kasan_save_track+0x3f/0x80
[ 69.687903][ T5846] __kasan_kmalloc+0x98/0xb0
[ 69.692596][ T5846] __kmalloc_cache_noprof+0x243/0x390
[ 69.697961][ T5846] binderfs_binder_device_create+0x16c/0x9c0
[ 69.703936][ T5846] binderfs_fill_super+0x944/0xd90
[ 69.709081][ T5846] get_tree_nodev+0xb7/0x140
[ 69.713756][ T5846] vfs_get_tree+0x90/0x2b0
[ 69.718259][ T5846] do_new_mount+0x2be/0xb40
[ 69.722748][ T5846] __se_sys_mount+0x2d6/0x3c0
[ 69.727415][ T5846] do_syscall_64+0xf3/0x230
[ 69.731926][ T5846] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.738188][ T5846]
[ 69.740514][ T5846] Freed by task 5839:
[ 69.744499][ T5846] kasan_save_track+0x3f/0x80
[ 69.749179][ T5846] kasan_save_free_info+0x40/0x50
[ 69.754229][ T5846] __kasan_slab_free+0x59/0x70
[ 69.759074][ T5846] kfree+0x196/0x430
[ 69.762958][ T5846] evict+0x4e8/0x9a0
[ 69.767045][ T5846] __dentry_kill+0x20d/0x630
[ 69.771756][ T5846] shrink_kill+0xa9/0x2c0
[ 69.776539][ T5846] shrink_dentry_list+0x2c0/0x5b0
[ 69.781756][ T5846] shrink_dcache_parent+0xcb/0x3b0
[ 69.786859][ T5846] do_one_tree+0x23/0xe0
[ 69.791097][ T5846] shrink_dcache_for_umount+0xb4/0x180
[ 69.796644][ T5846] generic_shutdown_super+0x6a/0x2d0
[ 69.801924][ T5846] kill_litter_super+0x76/0xb0
[ 69.806694][ T5846] binderfs_kill_super+0x44/0x90
[ 69.811653][ T5846] deactivate_locked_super+0xc4/0x130
[ 69.817390][ T5846] cleanup_mnt+0x41f/0x4b0
[ 69.821823][ T5846] task_work_run+0x24f/0x310
[ 69.826417][ T5846] do_exit+0xa2a/0x28e0
[ 69.830684][ T5846] do_group_exit+0x207/0x2c0
[ 69.835358][ T5846] get_signal+0x16b2/0x1750
[ 69.839853][ T5846] arch_do_signal_or_restart+0x96/0x860
[ 69.845580][ T5846] syscall_exit_to_user_mode+0xce/0x340
[ 69.851137][ T5846] do_syscall_64+0x100/0x230
[ 69.855812][ T5846] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.861721][ T5846]
[ 69.864124][ T5846] The buggy address belongs to the object at ffff888034f6b400
[ 69.864124][ T5846] which belongs to the cache kmalloc-512 of size 512
[ 69.878620][ T5846] The buggy address is located 8 bytes inside of
[ 69.878620][ T5846] freed 512-byte region [ffff888034f6b400, ffff888034f6b600)
[ 69.892257][ T5846]
[ 69.894572][ T5846] The buggy address belongs to the physical page:
[ 69.901107][ T5846] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x34f68
[ 69.909871][ T5846] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 69.918360][ T5846] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 69.925914][ T5846] page_type: f5(slab)
[ 69.929885][ T5846] raw: 00fff00000000040 ffff88801ac41c80 ffffea0000b27800 0000000000000002
[ 69.938473][ T5846] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 69.947053][ T5846] head: 00fff00000000040 ffff88801ac41c80 ffffea0000b27800 0000000000000002
[ 69.955718][ T5846] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 69.964415][ T5846] head: 00fff00000000002 ffffea0000d3da01 ffffffffffffffff 0000000000000000
[ 69.973114][ T5846] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 69.981768][ T5846] page dumped because: kasan: bad access detected
[ 69.988227][ T5846] page_owner tracks the page as allocated
[ 69.994307][ T5846] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5206, tgid 5206 (udevd), ts 34458506319, free_ts 34433767025
[ 70.016837][ T5846] post_alloc_hook+0x1f4/0x240
[ 70.021702][ T5846] get_page_from_freelist+0x365c/0x37a0
[ 70.027247][ T5846] __alloc_frozen_pages_noprof+0x292/0x710
[ 70.033047][ T5846] alloc_pages_mpol+0x311/0x660
[ 70.037976][ T5846] allocate_slab+0x8f/0x3a0
[ 70.042557][ T5846] ___slab_alloc+0xc27/0x14a0
[ 70.047251][ T5846] __slab_alloc+0x58/0xa0
[ 70.051675][ T5846] __kmalloc_cache_noprof+0x27b/0x390
[ 70.057198][ T5846] kernfs_fop_open+0x3e0/0xd10
[ 70.062050][ T5846] do_dentry_open+0xdec/0x1960
[ 70.066802][ T5846] vfs_open+0x3b/0x370
[ 70.070884][ T5846] path_openat+0x2c81/0x3590
[ 70.075474][ T5846] do_filp_open+0x27f/0x4e0
[ 70.080152][ T5846] do_sys_openat2+0x13e/0x1d0
[ 70.084821][ T5846] __x64_sys_openat+0x247/0x2a0
[ 70.089785][ T5846] do_syscall_64+0xf3/0x230
[ 70.094302][ T5846] page last free pid 5206 tgid 5206 stack trace:
[ 70.100621][ T5846] free_frozen_pages+0xe0d/0x10e0
[ 70.105726][ T5846] __slab_free+0x2c2/0x380
[ 70.110138][ T5846] qlist_free_all+0x9a/0x140
[ 70.114723][ T5846] kasan_quarantine_reduce+0x14f/0x170
[ 70.120178][ T5846] __kasan_slab_alloc+0x23/0x80
[ 70.125023][ T5846] __kmalloc_noprof+0x236/0x4c0
[ 70.129864][ T5846] tomoyo_realpath_from_path+0xcf/0x5e0
[ 70.135441][ T5846] tomoyo_path_perm+0x2b7/0x740
[ 70.140380][ T5846] security_inode_getattr+0x130/0x330
[ 70.145743][ T5846] vfs_getattr+0x2a/0x3a0
[ 70.150109][ T5846] vfs_fstatat+0xa8/0x130
[ 70.154431][ T5846] __x64_sys_newfstatat+0x117/0x190
[ 70.159617][ T5846] do_syscall_64+0xf3/0x230
[ 70.164109][ T5846] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 70.169999][ T5846]
[ 70.172316][ T5846] Memory state around the buggy address:
[ 70.177934][ T5846] ffff888034f6b300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 70.186079][ T5846] ffff888034f6b380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 70.194143][ T5846] >ffff888034f6b400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 70.202196][ T5846] ^
[ 70.206602][ T5846] ffff888034f6b480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 70.214663][ T5846] ffff888034f6b500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 70.222819][ T5846] ==================================================================
[ 70.231265][ T5846] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 70.238695][ T5846] CPU: 0 UID: 0 PID: 5846 Comm: syz-executor Not tainted 6.13.0-next-20250124-syzkaller-10205-g5ffa57f6eece #0
[ 70.250429][ T5846] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 70.260695][ T5846] Call Trace:
[ 70.263973][ T5846]
[ 70.266899][ T5846] dump_stack_lvl+0x241/0x360
[ 70.271587][ T5846] ? __pfx_dump_stack_lvl+0x10/0x10
[ 70.276866][ T5846] ? __pfx__printk+0x10/0x10
[ 70.281987][ T5846] ? preempt_schedule+0xe1/0xf0
[ 70.286854][ T5846] ? vscnprintf+0x5d/0x90
[ 70.291208][ T5846] panic+0x349/0x880
[ 70.295125][ T5846] ? check_panic_on_warn+0x21/0xb0
[ 70.300243][ T5846] ? __pfx_panic+0x10/0x10
[ 70.304661][ T5846] ? _raw_spin_unlock_irqrestore+0x130/0x140
[ 70.310636][ T5846] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 70.316968][ T5846] ? print_report+0x502/0x550
[ 70.321686][ T5846] check_panic_on_warn+0x86/0xb0
[ 70.326621][ T5846] ? binder_add_device+0x5f/0xa0
[ 70.331559][ T5846] end_report+0x77/0x160
[ 70.335809][ T5846] kasan_report+0x154/0x180
[ 70.340322][ T5846] ? binder_add_device+0x5f/0xa0
[ 70.345257][ T5846] binder_add_device+0x5f/0xa0
[ 70.350090][ T5846] binderfs_binder_device_create+0x7bf/0x9c0
[ 70.356372][ T5846] binderfs_fill_super+0x944/0xd90
[ 70.361555][ T5846] ? __pfx_binderfs_fill_super+0x10/0x10
[ 70.367563][ T5846] ? shrinker_register+0x160/0x230
[ 70.372690][ T5846] ? sget_fc+0x909/0x9c0
[ 70.376960][ T5846] ? __pfx_set_anon_super_fc+0x10/0x10
[ 70.382435][ T5846] ? __pfx_binderfs_fill_super+0x10/0x10
[ 70.388077][ T5846] get_tree_nodev+0xb7/0x140
[ 70.392692][ T5846] vfs_get_tree+0x90/0x2b0
[ 70.397122][ T5846] do_new_mount+0x2be/0xb40
[ 70.401727][ T5846] ? __pfx_do_new_mount+0x10/0x10
[ 70.406778][ T5846] __se_sys_mount+0x2d6/0x3c0
[ 70.411920][ T5846] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 70.418012][ T5846] ? __pfx___se_sys_mount+0x10/0x10
[ 70.423259][ T5846] ? do_syscall_64+0x100/0x230
[ 70.428061][ T5846] ? __x64_sys_mount+0x20/0xc0
[ 70.432910][ T5846] do_syscall_64+0xf3/0x230
[ 70.437569][ T5846] ? clear_bhb_loop+0x35/0x90
[ 70.442261][ T5846] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 70.448296][ T5846] RIP: 0033:0x7f8dc13816ba
[ 70.452820][ T5846] 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
[ 70.472702][ T5846] RSP: 002b:00007ffc9514fac8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 70.481212][ T5846] RAX: ffffffffffffffda RBX: 00007f8dc13f3d49 RCX: 00007f8dc13816ba
[ 70.489182][ T5846] RDX: 00007f8dc13ff2fa RSI: 00007f8dc13f3d49 RDI: 00007f8dc13ff2fa
[ 70.497495][ T5846] RBP: 00007f8dc13f3f58 R08: 0000000000000000 R09: 00000000000001ff
[ 70.505601][ T5846] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8dc13de068
[ 70.513565][ T5846] R13: 00007f8dc13de048 R14: 0000000000000009 R15: 0000000000000000
[ 70.521620][ T5846]
[ 70.524943][ T5846] Kernel Offset: disabled
[ 70.529446][ T5846] 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-build3845687564=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at b50eb251af
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=b50eb251af3b122fb1b2c574dde0c3d16f6a8cfd -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241203-163055'" "-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=\"b50eb251af3b122fb1b2c574dde0c3d16f6a8cfd\"
/usr/bin/ld: /tmp/ccu3u9bf.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