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 ffff88802734c408 by task syz-executor/5847
CPU: 0 UID: 0 PID: 5847 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: 0033:0x7f4d9bd874ca
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:00007ffe16ed7478 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f4d9be01ecb RCX: 00007f4d9bd874ca
RDX: 00007f4d9be0ec27 RSI: 00007f4d9be01ecb RDI: 00007f4d9be0ec27
RBP: 00007f4d9be020c3 R08: 0000000000000000 R09: 00007ffe16ed7520
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4d9bde41c8
R13: 00007f4d9bde41a8 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5841:
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 5841:
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 ffff88802734c400
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff88802734c400, ffff88802734c600)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2734c
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 ffffea00009cd301 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 5208, tgid 5208 (udevd), ts 24890163009, free_ts 24378916593
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 5207 tgid 5207 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]
kmem_cache_alloc_node_noprof+0x1d9/0x380 mm/slub.c:4216
__alloc_skb+0x1c3/0x440 net/core/skbuff.c:668
alloc_skb include/linux/skbuff.h:1331 [inline]
alloc_skb_with_frags+0xc3/0x820 net/core/skbuff.c:6612
sock_alloc_send_pskb+0x91a/0xa60 net/core/sock.c:2897
unix_dgram_sendmsg+0x5f1/0x1df0 net/unix/af_unix.c:2017
sock_sendmsg_nosec net/socket.c:713 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:728
sock_write_iter+0x2d7/0x3f0 net/socket.c:1132
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xacf/0xd10 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
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:
ffff88802734c300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88802734c380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88802734c400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88802734c480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88802734c500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.1.8' (ED25519) to the list of known hosts.
2025/01/27 21:16:37 ignoring optional flag "sandboxArg"="0"
2025/01/27 21:16:38 parsed 1 programs
[ 63.415800][ T5828] cgroup: Unknown subsys name 'net'
[ 63.569213][ T5828] cgroup: Unknown subsys name 'cpuset'
[ 63.577439][ T5828] cgroup: Unknown subsys name 'rlimit'
[ 64.891417][ T5828] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 67.549706][ T5841] 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.
[ 68.010339][ T5847] ==================================================================
[ 68.018448][ T5847] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[ 68.026208][ T5847] Write of size 8 at addr ffff88802734c408 by task syz-executor/5847
[ 68.034696][ T5847]
[ 68.037032][ T5847] CPU: 0 UID: 0 PID: 5847 Comm: syz-executor Not tainted 6.13.0-next-20250124-syzkaller-10205-g5ffa57f6eece #0
[ 68.037048][ T5847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 68.037059][ T5847] Call Trace:
[ 68.037065][ T5847]
[ 68.037070][ T5847] dump_stack_lvl+0x241/0x360
[ 68.037089][ T5847] ? __pfx_dump_stack_lvl+0x10/0x10
[ 68.037101][ T5847] ? __pfx__printk+0x10/0x10
[ 68.037113][ T5847] ? _printk+0xd5/0x120
[ 68.037124][ T5847] ? __virt_addr_valid+0x183/0x530
[ 68.037141][ T5847] ? __virt_addr_valid+0x183/0x530
[ 68.037158][ T5847] print_report+0x169/0x550
[ 68.037176][ T5847] ? __virt_addr_valid+0x183/0x530
[ 68.037192][ T5847] ? __virt_addr_valid+0x183/0x530
[ 68.037208][ T5847] ? __virt_addr_valid+0x45f/0x530
[ 68.037224][ T5847] ? __phys_addr+0xba/0x170
[ 68.037240][ T5847] ? binder_add_device+0x5f/0xa0
[ 68.037257][ T5847] kasan_report+0x143/0x180
[ 68.037275][ T5847] ? binder_add_device+0x5f/0xa0
[ 68.037293][ T5847] binder_add_device+0x5f/0xa0
[ 68.037310][ T5847] binderfs_binder_device_create+0x7bf/0x9c0
[ 68.037330][ T5847] binderfs_fill_super+0x944/0xd90
[ 68.037349][ T5847] ? __pfx_binderfs_fill_super+0x10/0x10
[ 68.037371][ T5847] ? shrinker_register+0x160/0x230
[ 68.037387][ T5847] ? sget_fc+0x909/0x9c0
[ 68.037402][ T5847] ? __pfx_set_anon_super_fc+0x10/0x10
[ 68.037417][ T5847] ? __pfx_binderfs_fill_super+0x10/0x10
[ 68.037433][ T5847] get_tree_nodev+0xb7/0x140
[ 68.037449][ T5847] vfs_get_tree+0x90/0x2b0
[ 68.037465][ T5847] do_new_mount+0x2be/0xb40
[ 68.037479][ T5847] ? __pfx_do_new_mount+0x10/0x10
[ 68.037493][ T5847] __se_sys_mount+0x2d6/0x3c0
[ 68.037506][ T5847] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 68.037524][ T5847] ? __pfx___se_sys_mount+0x10/0x10
[ 68.037536][ T5847] ? do_syscall_64+0x100/0x230
[ 68.037550][ T5847] ? __x64_sys_mount+0x20/0xc0
[ 68.037563][ T5847] do_syscall_64+0xf3/0x230
[ 68.037575][ T5847] ? clear_bhb_loop+0x35/0x90
[ 68.037593][ T5847] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.037612][ T5847] RIP: 0033:0x7f4d9bd874ca
[ 68.037627][ T5847] 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
[ 68.037636][ T5847] RSP: 002b:00007ffe16ed7478 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 68.037651][ T5847] RAX: ffffffffffffffda RBX: 00007f4d9be01ecb RCX: 00007f4d9bd874ca
[ 68.037665][ T5847] RDX: 00007f4d9be0ec27 RSI: 00007f4d9be01ecb RDI: 00007f4d9be0ec27
[ 68.037673][ T5847] RBP: 00007f4d9be020c3 R08: 0000000000000000 R09: 00007ffe16ed7520
[ 68.037682][ T5847] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4d9bde41c8
[ 68.037690][ T5847] R13: 00007f4d9bde41a8 R14: 0000000000000009 R15: 0000000000000000
[ 68.037702][ T5847]
[ 68.037706][ T5847]
[ 68.311957][ T5847] Allocated by task 5841:
[ 68.316273][ T5847] kasan_save_track+0x3f/0x80
[ 68.320949][ T5847] __kasan_kmalloc+0x98/0xb0
[ 68.325533][ T5847] __kmalloc_cache_noprof+0x243/0x390
[ 68.330897][ T5847] binderfs_binder_device_create+0x16c/0x9c0
[ 68.336869][ T5847] binderfs_fill_super+0x944/0xd90
[ 68.342001][ T5847] get_tree_nodev+0xb7/0x140
[ 68.346583][ T5847] vfs_get_tree+0x90/0x2b0
[ 68.350987][ T5847] do_new_mount+0x2be/0xb40
[ 68.355496][ T5847] __se_sys_mount+0x2d6/0x3c0
[ 68.360198][ T5847] do_syscall_64+0xf3/0x230
[ 68.364709][ T5847] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.370690][ T5847]
[ 68.373024][ T5847] Freed by task 5841:
[ 68.377009][ T5847] kasan_save_track+0x3f/0x80
[ 68.381691][ T5847] kasan_save_free_info+0x40/0x50
[ 68.386708][ T5847] __kasan_slab_free+0x59/0x70
[ 68.391507][ T5847] kfree+0x196/0x430
[ 68.395392][ T5847] evict+0x4e8/0x9a0
[ 68.399370][ T5847] __dentry_kill+0x20d/0x630
[ 68.403955][ T5847] shrink_kill+0xa9/0x2c0
[ 68.408272][ T5847] shrink_dentry_list+0x2c0/0x5b0
[ 68.413315][ T5847] shrink_dcache_parent+0xcb/0x3b0
[ 68.418454][ T5847] do_one_tree+0x23/0xe0
[ 68.422699][ T5847] shrink_dcache_for_umount+0xb4/0x180
[ 68.428252][ T5847] generic_shutdown_super+0x6a/0x2d0
[ 68.433538][ T5847] kill_litter_super+0x76/0xb0
[ 68.438295][ T5847] binderfs_kill_super+0x44/0x90
[ 68.443224][ T5847] deactivate_locked_super+0xc4/0x130
[ 68.448586][ T5847] cleanup_mnt+0x41f/0x4b0
[ 68.453029][ T5847] task_work_run+0x24f/0x310
[ 68.457703][ T5847] do_exit+0xa2a/0x28e0
[ 68.461851][ T5847] do_group_exit+0x207/0x2c0
[ 68.466434][ T5847] get_signal+0x16b2/0x1750
[ 68.470962][ T5847] arch_do_signal_or_restart+0x96/0x860
[ 68.476496][ T5847] syscall_exit_to_user_mode+0xce/0x340
[ 68.482036][ T5847] do_syscall_64+0x100/0x230
[ 68.486615][ T5847] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.492502][ T5847]
[ 68.494816][ T5847] The buggy address belongs to the object at ffff88802734c400
[ 68.494816][ T5847] which belongs to the cache kmalloc-512 of size 512
[ 68.508873][ T5847] The buggy address is located 8 bytes inside of
[ 68.508873][ T5847] freed 512-byte region [ffff88802734c400, ffff88802734c600)
[ 68.522577][ T5847]
[ 68.524892][ T5847] The buggy address belongs to the physical page:
[ 68.531295][ T5847] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2734c
[ 68.540144][ T5847] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 68.548657][ T5847] anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 68.556631][ T5847] page_type: f5(slab)
[ 68.560609][ T5847] raw: 00fff00000000040 ffff88801ac41c80 0000000000000000 dead000000000001
[ 68.569179][ T5847] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 68.577749][ T5847] head: 00fff00000000040 ffff88801ac41c80 0000000000000000 dead000000000001
[ 68.586404][ T5847] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 68.595061][ T5847] head: 00fff00000000002 ffffea00009cd301 ffffffffffffffff 0000000000000000
[ 68.603713][ T5847] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 68.612363][ T5847] page dumped because: kasan: bad access detected
[ 68.618774][ T5847] page_owner tracks the page as allocated
[ 68.624498][ T5847] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5208, tgid 5208 (udevd), ts 24890163009, free_ts 24378916593
[ 68.645266][ T5847] post_alloc_hook+0x1f4/0x240
[ 68.650042][ T5847] get_page_from_freelist+0x365c/0x37a0
[ 68.655706][ T5847] __alloc_frozen_pages_noprof+0x292/0x710
[ 68.661528][ T5847] alloc_pages_mpol+0x311/0x660
[ 68.666389][ T5847] allocate_slab+0x8f/0x3a0
[ 68.670988][ T5847] ___slab_alloc+0xc27/0x14a0
[ 68.675759][ T5847] __slab_alloc+0x58/0xa0
[ 68.680093][ T5847] __kmalloc_cache_noprof+0x27b/0x390
[ 68.685460][ T5847] kernfs_fop_open+0x3e0/0xd10
[ 68.690223][ T5847] do_dentry_open+0xdec/0x1960
[ 68.694971][ T5847] vfs_open+0x3b/0x370
[ 68.699024][ T5847] path_openat+0x2c81/0x3590
[ 68.703600][ T5847] do_filp_open+0x27f/0x4e0
[ 68.708180][ T5847] do_sys_openat2+0x13e/0x1d0
[ 68.712847][ T5847] __x64_sys_openat+0x247/0x2a0
[ 68.717681][ T5847] do_syscall_64+0xf3/0x230
[ 68.722173][ T5847] page last free pid 5207 tgid 5207 stack trace:
[ 68.728602][ T5847] free_frozen_pages+0xe0d/0x10e0
[ 68.733615][ T5847] __slab_free+0x2c2/0x380
[ 68.738024][ T5847] qlist_free_all+0x9a/0x140
[ 68.742610][ T5847] kasan_quarantine_reduce+0x14f/0x170
[ 68.748053][ T5847] __kasan_slab_alloc+0x23/0x80
[ 68.753092][ T5847] kmem_cache_alloc_node_noprof+0x1d9/0x380
[ 68.758996][ T5847] __alloc_skb+0x1c3/0x440
[ 68.763409][ T5847] alloc_skb_with_frags+0xc3/0x820
[ 68.768514][ T5847] sock_alloc_send_pskb+0x91a/0xa60
[ 68.773706][ T5847] unix_dgram_sendmsg+0x5f1/0x1df0
[ 68.778806][ T5847] __sock_sendmsg+0x221/0x270
[ 68.783476][ T5847] sock_write_iter+0x2d7/0x3f0
[ 68.790417][ T5847] vfs_write+0xacf/0xd10
[ 68.794938][ T5847] ksys_write+0x18f/0x2b0
[ 68.799797][ T5847] do_syscall_64+0xf3/0x230
[ 68.804683][ T5847] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.810683][ T5847]
[ 68.813000][ T5847] Memory state around the buggy address:
[ 68.818630][ T5847] ffff88802734c300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 68.826699][ T5847] ffff88802734c380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 68.834757][ T5847] >ffff88802734c400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.842829][ T5847] ^
[ 68.847155][ T5847] ffff88802734c480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.855226][ T5847] ffff88802734c500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.863292][ T5847] ==================================================================
[ 68.886221][ T5847] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 68.893648][ T5847] CPU: 1 UID: 0 PID: 5847 Comm: syz-executor Not tainted 6.13.0-next-20250124-syzkaller-10205-g5ffa57f6eece #0
[ 68.905379][ T5847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 68.915446][ T5847] Call Trace:
[ 68.918749][ T5847]
[ 68.921697][ T5847] dump_stack_lvl+0x241/0x360
[ 68.926541][ T5847] ? __pfx_dump_stack_lvl+0x10/0x10
[ 68.931769][ T5847] ? __pfx__printk+0x10/0x10
[ 68.936379][ T5847] ? preempt_schedule+0xe1/0xf0
[ 68.941260][ T5847] ? vscnprintf+0x5d/0x90
[ 68.945620][ T5847] panic+0x349/0x880
[ 68.949534][ T5847] ? check_panic_on_warn+0x21/0xb0
[ 68.954679][ T5847] ? __pfx_panic+0x10/0x10
[ 68.959476][ T5847] ? _raw_spin_unlock_irqrestore+0x130/0x140
[ 68.965487][ T5847] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 68.971851][ T5847] ? print_report+0x502/0x550
[ 68.976657][ T5847] check_panic_on_warn+0x86/0xb0
[ 68.981741][ T5847] ? binder_add_device+0x5f/0xa0
[ 68.986683][ T5847] end_report+0x77/0x160
[ 68.990924][ T5847] kasan_report+0x154/0x180
[ 68.995434][ T5847] ? binder_add_device+0x5f/0xa0
[ 69.000399][ T5847] binder_add_device+0x5f/0xa0
[ 69.005187][ T5847] binderfs_binder_device_create+0x7bf/0x9c0
[ 69.011197][ T5847] binderfs_fill_super+0x944/0xd90
[ 69.016316][ T5847] ? __pfx_binderfs_fill_super+0x10/0x10
[ 69.021952][ T5847] ? shrinker_register+0x160/0x230
[ 69.027492][ T5847] ? sget_fc+0x909/0x9c0
[ 69.031724][ T5847] ? __pfx_set_anon_super_fc+0x10/0x10
[ 69.037170][ T5847] ? __pfx_binderfs_fill_super+0x10/0x10
[ 69.042794][ T5847] get_tree_nodev+0xb7/0x140
[ 69.047375][ T5847] vfs_get_tree+0x90/0x2b0
[ 69.051793][ T5847] do_new_mount+0x2be/0xb40
[ 69.056284][ T5847] ? __pfx_do_new_mount+0x10/0x10
[ 69.061325][ T5847] __se_sys_mount+0x2d6/0x3c0
[ 69.066038][ T5847] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 69.072046][ T5847] ? __pfx___se_sys_mount+0x10/0x10
[ 69.077247][ T5847] ? do_syscall_64+0x100/0x230
[ 69.082089][ T5847] ? __x64_sys_mount+0x20/0xc0
[ 69.086841][ T5847] do_syscall_64+0xf3/0x230
[ 69.091335][ T5847] ? clear_bhb_loop+0x35/0x90
[ 69.096009][ T5847] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 69.101907][ T5847] RIP: 0033:0x7f4d9bd874ca
[ 69.106495][ T5847] 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
[ 69.126098][ T5847] RSP: 002b:00007ffe16ed7478 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 69.134528][ T5847] RAX: ffffffffffffffda RBX: 00007f4d9be01ecb RCX: 00007f4d9bd874ca
[ 69.142495][ T5847] RDX: 00007f4d9be0ec27 RSI: 00007f4d9be01ecb RDI: 00007f4d9be0ec27
[ 69.150501][ T5847] RBP: 00007f4d9be020c3 R08: 0000000000000000 R09: 00007ffe16ed7520
[ 69.158482][ T5847] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4d9bde41c8
[ 69.166452][ T5847] R13: 00007f4d9bde41a8 R14: 0000000000000009 R15: 0000000000000000
[ 69.174432][ T5847]
[ 69.177702][ T5847] Kernel Offset: disabled
[ 69.182030][ T5847] 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-build2296444288=/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/cc9C3Rl7.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