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+0x5b/0xa0 drivers/android/binder.c:6932
Write of size 8 at addr ffff8880243e9408 by task syz-executor/5784
CPU: 1 UID: 0 PID: 5784 Comm: syz-executor Not tainted 6.13.0-syzkaller-10003-ga86bf2283d2c #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+0x23d/0x360 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0x165/0x540 mm/kasan/report.c:489
kasan_report+0x13f/0x180 mm/kasan/report.c:602
hlist_add_head include/linux/list.h:1026 [inline]
binder_add_device+0x5b/0xa0 drivers/android/binder.c:6932
binderfs_binder_device_create+0x7bf/0x9c0 drivers/android/binderfs.c:210
binderfs_fill_super+0x940/0xd90 drivers/android/binderfs.c:729
vfs_get_super fs/super.c:1280 [inline]
get_tree_nodev+0xb3/0x140 fs/super.c:1299
vfs_get_tree+0x8c/0x280 fs/super.c:1814
do_new_mount+0x2ba/0xb40 fs/namespace.c:3560
do_mount fs/namespace.c:3900 [inline]
__do_sys_mount fs/namespace.c:4111 [inline]
__se_sys_mount+0x2d2/0x3c0 fs/namespace.c:4088
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x7e/0x180 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f08e6b8e54a
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:00007fff4ffd9628 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f08e6c0e663 RCX: 00007f08e6b8e54a
RDX: 00007f08e6c1dda7 RSI: 00007f08e6c0e663 RDI: 00007f08e6c1dda7
RBP: 00007f08e6c0e8ac R08: 0000000000000000 R09: 00000000000001ff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f08e6beb1a8
R13: 00007f08e6beb180 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5778:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3b/0x70 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0x94/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__kmalloc_cache_noprof+0x237/0x370 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+0x940/0xd90 drivers/android/binderfs.c:729
vfs_get_super fs/super.c:1280 [inline]
get_tree_nodev+0xb3/0x140 fs/super.c:1299
vfs_get_tree+0x8c/0x280 fs/super.c:1814
do_new_mount+0x2ba/0xb40 fs/namespace.c:3560
do_mount fs/namespace.c:3900 [inline]
__do_sys_mount fs/namespace.c:4111 [inline]
__se_sys_mount+0x2d2/0x3c0 fs/namespace.c:4088
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x7e/0x180 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
Freed by task 5778:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3b/0x70 mm/kasan/common.c:68
kasan_save_free_info+0x3c/0x50 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x55/0x70 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+0x18e/0x410 mm/slub.c:4757
evict+0x4e4/0x990 fs/inode.c:796
__dentry_kill+0x200/0x610 fs/dcache.c:643
shrink_kill+0xa9/0x2c0 fs/dcache.c:1088
shrink_dentry_list+0x2bc/0x5b0 fs/dcache.c:1115
shrink_dcache_parent+0xc7/0x3b0
do_one_tree+0x23/0xe0 fs/dcache.c:1578
shrink_dcache_for_umount+0xb0/0x170 fs/dcache.c:1595
generic_shutdown_super+0x66/0x2d0 fs/super.c:620
kill_anon_super fs/super.c:1237 [inline]
kill_litter_super+0x72/0xa0 fs/super.c:1247
binderfs_kill_super+0x40/0x90 drivers/android/binderfs.c:791
deactivate_locked_super+0xc0/0x120 fs/super.c:473
cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1413
task_work_run+0x24b/0x310 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa26/0x28d0 kernel/exit.c:938
do_group_exit+0x203/0x2b0 kernel/exit.c:1087
get_signal+0x16ae/0x1740 kernel/signal.c:3036
arch_do_signal_or_restart+0x92/0x860 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+0xc9/0x320 kernel/entry/common.c:218
do_syscall_64+0x8a/0x180 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x76/0x7e
The buggy address belongs to the object at ffff8880243e9400
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff8880243e9400, ffff8880243e9600)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x243e8
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 ffff88801a441c80 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801a441c80 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea000090fa01 ffffffffffffffff 0000000000000000
head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 9189955447, free_ts 0
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1e0/0x220 mm/page_alloc.c:1551
prep_new_page mm/page_alloc.c:1559 [inline]
get_page_from_freelist+0x35e2/0x3720 mm/page_alloc.c:3477
__alloc_frozen_pages_noprof+0x252/0x680 mm/page_alloc.c:4739
alloc_pages_mpol+0x30d/0x660 mm/mempolicy.c:2270
alloc_slab_page mm/slub.c:2423 [inline]
allocate_slab+0x8f/0x390 mm/slub.c:2587
new_slab mm/slub.c:2640 [inline]
___slab_alloc+0xc35/0x1490 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+0x26f/0x370 mm/slub.c:4320
kmalloc_noprof include/linux/slab.h:901 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
device_private_init drivers/base/core.c:3510 [inline]
device_add+0xc0/0xd00 drivers/base/core.c:3561
device_create_groups_vargs drivers/base/core.c:4347 [inline]
device_create+0x253/0x2e0 drivers/base/core.c:4386
bdi_register_va+0x87/0x760 mm/backing-dev.c:1094
bdi_register+0xd1/0x120 mm/backing-dev.c:1126
add_disk_fwnode+0x755/0xfc0 block/genhd.c:510
add_disk include/linux/blkdev.h:756 [inline]
brd_alloc+0x543/0x790 drivers/block/brd.c:401
brd_init+0x122/0x1b0 drivers/block/brd.c:481
do_one_initcall+0x244/0x840 init/main.c:1257
page_owner free stack trace missing
Memory state around the buggy address:
ffff8880243e9300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8880243e9380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880243e9400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880243e9480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880243e9500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.10.9' (ED25519) to the list of known hosts.
2025/02/02 00:23:58 ignoring optional flag "sandboxArg"="0"
2025/02/02 00:23:59 parsed 1 programs
[ 81.561608][ T5771] cgroup: Unknown subsys name 'net'
[ 81.693167][ T5771] cgroup: Unknown subsys name 'cpuset'
[ 81.701407][ T5771] cgroup: Unknown subsys name 'rlimit'
[ 81.707048][ T5771] cgroup: Unknown subsys name 'memory'
[ 83.210020][ T5771] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 86.271145][ T5784] ==================================================================
[ 86.279276][ T5784] BUG: KASAN: slab-use-after-free in binder_add_device+0x5b/0xa0
[ 86.287020][ T5784] Write of size 8 at addr ffff8880243e9408 by task syz-executor/5784
[ 86.295098][ T5784]
[ 86.297441][ T5784] CPU: 1 UID: 0 PID: 5784 Comm: syz-executor Not tainted 6.13.0-syzkaller-10003-ga86bf2283d2c #0
[ 86.297463][ T5784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 86.297480][ T5784] Call Trace:
[ 86.297487][ T5784]
[ 86.297494][ T5784] dump_stack_lvl+0x23d/0x360
[ 86.297521][ T5784] ? __pfx_dump_stack_lvl+0x10/0x10
[ 86.297544][ T5784] ? __pfx__printk+0x10/0x10
[ 86.297567][ T5784] ? _printk+0xd1/0x120
[ 86.297587][ T5784] ? __virt_addr_valid+0x17f/0x530
[ 86.297604][ T5784] ? __virt_addr_valid+0x17f/0x530
[ 86.297621][ T5784] print_report+0x165/0x540
[ 86.297646][ T5784] ? __virt_addr_valid+0x17f/0x530
[ 86.297662][ T5784] ? __virt_addr_valid+0x17f/0x530
[ 86.297677][ T5784] ? __virt_addr_valid+0x45b/0x530
[ 86.297692][ T5784] ? __phys_addr+0xb6/0x170
[ 86.297708][ T5784] ? binder_add_device+0x5b/0xa0
[ 86.297723][ T5784] kasan_report+0x13f/0x180
[ 86.297749][ T5784] ? binder_add_device+0x5b/0xa0
[ 86.297766][ T5784] binder_add_device+0x5b/0xa0
[ 86.297781][ T5784] binderfs_binder_device_create+0x7bf/0x9c0
[ 86.297811][ T5784] binderfs_fill_super+0x940/0xd90
[ 86.297838][ T5784] ? __pfx_binderfs_fill_super+0x10/0x10
[ 86.297871][ T5784] ? shrinker_register+0x15c/0x220
[ 86.297894][ T5784] ? sget_fc+0x905/0x9c0
[ 86.297918][ T5784] ? __pfx_set_anon_super_fc+0x10/0x10
[ 86.297933][ T5784] ? __pfx_binderfs_fill_super+0x10/0x10
[ 86.297958][ T5784] get_tree_nodev+0xb3/0x140
[ 86.297974][ T5784] vfs_get_tree+0x8c/0x280
[ 86.297992][ T5784] do_new_mount+0x2ba/0xb40
[ 86.298013][ T5784] ? __pfx_do_new_mount+0x10/0x10
[ 86.298036][ T5784] __se_sys_mount+0x2d2/0x3c0
[ 86.298056][ T5784] ? lockdep_hardirqs_on_prepare+0x439/0x7a0
[ 86.298087][ T5784] ? __pfx___se_sys_mount+0x10/0x10
[ 86.298109][ T5784] ? __x64_sys_mount+0x1c/0xc0
[ 86.298129][ T5784] do_syscall_64+0x7e/0x180
[ 86.298150][ T5784] ? clear_bhb_loop+0x45/0xa0
[ 86.298174][ T5784] ? clear_bhb_loop+0x45/0xa0
[ 86.298197][ T5784] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 86.298224][ T5784] RIP: 0033:0x7f08e6b8e54a
[ 86.298241][ T5784] 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
[ 86.298255][ T5784] RSP: 002b:00007fff4ffd9628 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 86.298273][ T5784] RAX: ffffffffffffffda RBX: 00007f08e6c0e663 RCX: 00007f08e6b8e54a
[ 86.298285][ T5784] RDX: 00007f08e6c1dda7 RSI: 00007f08e6c0e663 RDI: 00007f08e6c1dda7
[ 86.298296][ T5784] RBP: 00007f08e6c0e8ac R08: 0000000000000000 R09: 00000000000001ff
[ 86.298307][ T5784] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f08e6beb1a8
[ 86.298318][ T5784] R13: 00007f08e6beb180 R14: 0000000000000009 R15: 0000000000000000
[ 86.298334][ T5784]
[ 86.298340][ T5784]
[ 86.570887][ T5784] Allocated by task 5778:
[ 86.575224][ T5784] kasan_save_track+0x3b/0x70
[ 86.579915][ T5784] __kasan_kmalloc+0x94/0xb0
[ 86.584515][ T5784] __kmalloc_cache_noprof+0x237/0x370
[ 86.589889][ T5784] binderfs_binder_device_create+0x16c/0x9c0
[ 86.595917][ T5784] binderfs_fill_super+0x940/0xd90
[ 86.601058][ T5784] get_tree_nodev+0xb3/0x140
[ 86.605648][ T5784] vfs_get_tree+0x8c/0x280
[ 86.610066][ T5784] do_new_mount+0x2ba/0xb40
[ 86.614574][ T5784] __se_sys_mount+0x2d2/0x3c0
[ 86.619255][ T5784] do_syscall_64+0x7e/0x180
[ 86.623762][ T5784] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 86.629672][ T5784]
[ 86.632003][ T5784] Freed by task 5778:
[ 86.635987][ T5784] kasan_save_track+0x3b/0x70
[ 86.640690][ T5784] kasan_save_free_info+0x3c/0x50
[ 86.645724][ T5784] __kasan_slab_free+0x55/0x70
[ 86.650506][ T5784] kfree+0x18e/0x410
[ 86.654401][ T5784] evict+0x4e4/0x990
[ 86.658303][ T5784] __dentry_kill+0x200/0x610
[ 86.662924][ T5784] shrink_kill+0xa9/0x2c0
[ 86.667260][ T5784] shrink_dentry_list+0x2bc/0x5b0
[ 86.672377][ T5784] shrink_dcache_parent+0xc7/0x3b0
[ 86.677584][ T5784] do_one_tree+0x23/0xe0
[ 86.681833][ T5784] shrink_dcache_for_umount+0xb0/0x170
[ 86.687300][ T5784] generic_shutdown_super+0x66/0x2d0
[ 86.692597][ T5784] kill_litter_super+0x72/0xa0
[ 86.697470][ T5784] binderfs_kill_super+0x40/0x90
[ 86.702432][ T5784] deactivate_locked_super+0xc0/0x120
[ 86.707822][ T5784] cleanup_mnt+0x41f/0x4b0
[ 86.712255][ T5784] task_work_run+0x24b/0x310
[ 86.716862][ T5784] do_exit+0xa26/0x28d0
[ 86.721030][ T5784] do_group_exit+0x203/0x2b0
[ 86.725632][ T5784] get_signal+0x16ae/0x1740
[ 86.730139][ T5784] arch_do_signal_or_restart+0x92/0x860
[ 86.735708][ T5784] syscall_exit_to_user_mode+0xc9/0x320
[ 86.741258][ T5784] do_syscall_64+0x8a/0x180
[ 86.745766][ T5784] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 86.751666][ T5784]
[ 86.754077][ T5784] The buggy address belongs to the object at ffff8880243e9400
[ 86.754077][ T5784] which belongs to the cache kmalloc-512 of size 512
[ 86.768129][ T5784] The buggy address is located 8 bytes inside of
[ 86.768129][ T5784] freed 512-byte region [ffff8880243e9400, ffff8880243e9600)
[ 86.781756][ T5784]
[ 86.784082][ T5784] The buggy address belongs to the physical page:
[ 86.790500][ T5784] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x243e8
[ 86.799270][ T5784] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 86.807765][ T5784] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 86.815320][ T5784] page_type: f5(slab)
[ 86.819312][ T5784] raw: 00fff00000000040 ffff88801a441c80 dead000000000100 dead000000000122
[ 86.827923][ T5784] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 86.836787][ T5784] head: 00fff00000000040 ffff88801a441c80 dead000000000100 dead000000000122
[ 86.845462][ T5784] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 86.854138][ T5784] head: 00fff00000000002 ffffea000090fa01 ffffffffffffffff 0000000000000000
[ 86.862815][ T5784] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 86.871556][ T5784] page dumped because: kasan: bad access detected
[ 86.877981][ T5784] page_owner tracks the page as allocated
[ 86.883710][ T5784] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 9189955447, free_ts 0
[ 86.903353][ T5784] post_alloc_hook+0x1e0/0x220
[ 86.908132][ T5784] get_page_from_freelist+0x35e2/0x3720
[ 86.913691][ T5784] __alloc_frozen_pages_noprof+0x252/0x680
[ 86.919528][ T5784] alloc_pages_mpol+0x30d/0x660
[ 86.924465][ T5784] allocate_slab+0x8f/0x390
[ 86.929030][ T5784] ___slab_alloc+0xc35/0x1490
[ 86.933722][ T5784] __slab_alloc+0x58/0xa0
[ 86.938060][ T5784] __kmalloc_cache_noprof+0x26f/0x370
[ 86.943437][ T5784] device_add+0xc0/0xd00
[ 86.947693][ T5784] device_create+0x253/0x2e0
[ 86.952299][ T5784] bdi_register_va+0x87/0x760
[ 86.956981][ T5784] bdi_register+0xd1/0x120
[ 86.961423][ T5784] add_disk_fwnode+0x755/0xfc0
[ 86.966360][ T5784] brd_alloc+0x543/0x790
[ 86.971053][ T5784] brd_init+0x122/0x1b0
[ 86.975220][ T5784] do_one_initcall+0x244/0x840
[ 86.980015][ T5784] page_owner free stack trace missing
[ 86.985404][ T5784]
[ 86.987750][ T5784] Memory state around the buggy address:
[ 86.993399][ T5784] ffff8880243e9300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 87.001469][ T5784] ffff8880243e9380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 87.009533][ T5784] >ffff8880243e9400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 87.017595][ T5784] ^
[ 87.022030][ T5784] ffff8880243e9480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 87.030105][ T5784] ffff8880243e9500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 87.038176][ T5784] ==================================================================
[ 87.049238][ T963] cfg80211: failed to load regulatory.db
[ 87.062709][ T5784] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 87.069970][ T5784] CPU: 0 UID: 0 PID: 5784 Comm: syz-executor Not tainted 6.13.0-syzkaller-10003-ga86bf2283d2c #0
[ 87.080497][ T5784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 87.090827][ T5784] Call Trace:
[ 87.094110][ T5784]
[ 87.097051][ T5784] dump_stack_lvl+0x23d/0x360
[ 87.101764][ T5784] ? __pfx_dump_stack_lvl+0x10/0x10
[ 87.106989][ T5784] ? __pfx__printk+0x10/0x10
[ 87.111594][ T5784] ? preempt_schedule+0xdd/0xf0
[ 87.116472][ T5784] ? vscnprintf+0x59/0x80
[ 87.120809][ T5784] panic+0x345/0x880
[ 87.124715][ T5784] ? asm_sysvec_apic_timer_interrupt+0x16/0x20
[ 87.130880][ T5784] ? check_panic_on_warn+0x1d/0xa0
[ 87.136012][ T5784] ? __pfx_panic+0x10/0x10
[ 87.140453][ T5784] ? _raw_spin_unlock_irqrestore+0x12c/0x140
[ 87.146452][ T5784] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 87.152783][ T5784] ? print_report+0x4fe/0x540
[ 87.157474][ T5784] check_panic_on_warn+0x82/0xa0
[ 87.162426][ T5784] ? binder_add_device+0x5b/0xa0
[ 87.167363][ T5784] end_report+0x77/0x150
[ 87.171622][ T5784] kasan_report+0x150/0x180
[ 87.176139][ T5784] ? binder_add_device+0x5b/0xa0
[ 87.181117][ T5784] binder_add_device+0x5b/0xa0
[ 87.185880][ T5784] binderfs_binder_device_create+0x7bf/0x9c0
[ 87.191881][ T5784] binderfs_fill_super+0x940/0xd90
[ 87.197012][ T5784] ? __pfx_binderfs_fill_super+0x10/0x10
[ 87.202666][ T5784] ? shrinker_register+0x15c/0x220
[ 87.207785][ T5784] ? sget_fc+0x905/0x9c0
[ 87.212040][ T5784] ? __pfx_set_anon_super_fc+0x10/0x10
[ 87.217500][ T5784] ? __pfx_binderfs_fill_super+0x10/0x10
[ 87.223154][ T5784] get_tree_nodev+0xb3/0x140
[ 87.227752][ T5784] vfs_get_tree+0x8c/0x280
[ 87.232183][ T5784] do_new_mount+0x2ba/0xb40
[ 87.236696][ T5784] ? __pfx_do_new_mount+0x10/0x10
[ 87.241748][ T5784] __se_sys_mount+0x2d2/0x3c0
[ 87.246431][ T5784] ? lockdep_hardirqs_on_prepare+0x439/0x7a0
[ 87.252424][ T5784] ? __pfx___se_sys_mount+0x10/0x10
[ 87.257650][ T5784] ? __x64_sys_mount+0x1c/0xc0
[ 87.262423][ T5784] do_syscall_64+0x7e/0x180
[ 87.266949][ T5784] ? clear_bhb_loop+0x45/0xa0
[ 87.271634][ T5784] ? clear_bhb_loop+0x45/0xa0
[ 87.276321][ T5784] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 87.282224][ T5784] RIP: 0033:0x7f08e6b8e54a
[ 87.286641][ T5784] 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
[ 87.306253][ T5784] RSP: 002b:00007fff4ffd9628 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 87.314680][ T5784] RAX: ffffffffffffffda RBX: 00007f08e6c0e663 RCX: 00007f08e6b8e54a
[ 87.322654][ T5784] RDX: 00007f08e6c1dda7 RSI: 00007f08e6c0e663 RDI: 00007f08e6c1dda7
[ 87.330624][ T5784] RBP: 00007f08e6c0e8ac R08: 0000000000000000 R09: 00000000000001ff
[ 87.338611][ T5784] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f08e6beb1a8
[ 87.346582][ T5784] R13: 00007f08e6beb180 R14: 0000000000000009 R15: 0000000000000000
[ 87.354561][ T5784]
[ 87.357883][ T5784] Kernel Offset: disabled
[ 87.362213][ T5784] 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-build1740369775=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at aa47157c8e
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
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=aa47157c8ec3df5a6d16e3866b095c8f91026465 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250131-140626'" -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 -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"aa47157c8ec3df5a6d16e3866b095c8f91026465\"
/usr/bin/ld: /tmp/ccqWS4IN.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