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 ffff88803365ec08 by task syz-executor/5789
CPU: 1 UID: 0 PID: 5789 Comm: syz-executor Not tainted 6.13.0-syzkaller-09196-gcd45f362fc1f #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: 0033:0x7f230bf7feba
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:00007ffe3ff60ed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f230bff16f1 RCX: 00007f230bf7feba
RDX: 00007f230bffcaf7 RSI: 00007f230bff16f1 RDI: 00007f230bffcaf7
RBP: 00007f230bff1900 R08: 0000000000000000 R09: 00000000000001ff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f230bfdc068
R13: 00007f230bfdc048 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5782:
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 5782:
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:625
shrink_kill+0xa9/0x2c0 fs/dcache.c:1070
shrink_dentry_list+0x2bc/0x5b0 fs/dcache.c:1097
shrink_dcache_parent+0xc7/0x3b0
do_one_tree+0x23/0xe0 fs/dcache.c:1560
shrink_dcache_for_umount+0xb0/0x170 fs/dcache.c:1577
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 ffff88803365ec00
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff88803365ec00, ffff88803365ee00)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3365c
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 ffff88801a041c80 ffffea00009a5a00 dead000000000002
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801a041c80 ffffea00009a5a00 dead000000000002
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0000cd9701 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 5154, tgid 5154 (udevd), ts 33938088135, free_ts 33934702225
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]
ep_alloc fs/eventpoll.c:1151 [inline]
do_epoll_create+0x79/0x350 fs/eventpoll.c:2222
__do_sys_epoll_create1 fs/eventpoll.c:2253 [inline]
__se_sys_epoll_create1 fs/eventpoll.c:2251 [inline]
__x64_sys_epoll_create1+0x33/0x40 fs/eventpoll.c:2251
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
page last free pid 5161 tgid 5161 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_frozen_pages+0xddf/0x10a0 mm/page_alloc.c:2660
stack_depot_save_flags+0x465/0x950 lib/stackdepot.c:674
kasan_save_stack mm/kasan/common.c:48 [inline]
kasan_save_track+0x4d/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]
kmem_cache_free+0x18d/0x3f0 mm/slub.c:4711
rcu_do_batch kernel/rcu/tree.c:2546 [inline]
rcu_core+0xaa6/0x1790 kernel/rcu/tree.c:2802
handle_softirqs+0x2d0/0x990 kernel/softirq.c:561
do_softirq+0x117/0x1e0 kernel/softirq.c:462
__local_bh_enable_ip+0x1b5/0x1f0 kernel/softirq.c:389
flush_thread+0x32/0xa0 arch/x86/kernel/process.c:280
begin_new_exec+0x140f/0x20e0 fs/exec.c:1294
load_elf_binary+0x96f/0x2820 fs/binfmt_elf.c:1002
search_binary_handler fs/exec.c:1775 [inline]
exec_binprm fs/exec.c:1807 [inline]
bprm_execve+0x975/0x1420 fs/exec.c:1859
do_execveat_common+0x57f/0x710 fs/exec.c:1966
do_execve fs/exec.c:2040 [inline]
__do_sys_execve fs/exec.c:2116 [inline]
__se_sys_execve fs/exec.c:2111 [inline]
__x64_sys_execve+0x8e/0xa0 fs/exec.c:2111
Memory state around the buggy address:
ffff88803365eb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88803365eb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88803365ec00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88803365ec80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88803365ed00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.0.233' (ED25519) to the list of known hosts.
2025/01/28 22:10:30 ignoring optional flag "sandboxArg"="0"
2025/01/28 22:10:30 parsed 1 programs
syzkaller login: [ 81.898372][ T5772] cgroup: Unknown subsys name 'net'
[ 82.033546][ T5772] cgroup: Unknown subsys name 'cpuset'
[ 82.042469][ T5772] cgroup: Unknown subsys name 'rlimit'
[ 82.048123][ T5772] cgroup: Unknown subsys name 'memory'
[ 83.585744][ T5772] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 86.532556][ T5789] ==================================================================
[ 86.540780][ T5789] BUG: KASAN: slab-use-after-free in binder_add_device+0x5b/0xa0
[ 86.548590][ T5789] Write of size 8 at addr ffff88803365ec08 by task syz-executor/5789
[ 86.556673][ T5789]
[ 86.559016][ T5789] CPU: 1 UID: 0 PID: 5789 Comm: syz-executor Not tainted 6.13.0-syzkaller-09196-gcd45f362fc1f #0
[ 86.559033][ T5789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 86.559046][ T5789] Call Trace:
[ 86.559055][ T5789]
[ 86.559062][ T5789] dump_stack_lvl+0x23d/0x360
[ 86.559087][ T5789] ? __pfx_dump_stack_lvl+0x10/0x10
[ 86.559106][ T5789] ? __pfx__printk+0x10/0x10
[ 86.559124][ T5789] ? _printk+0xd1/0x120
[ 86.559141][ T5789] ? __virt_addr_valid+0x17f/0x530
[ 86.559164][ T5789] ? __virt_addr_valid+0x17f/0x530
[ 86.559187][ T5789] print_report+0x165/0x540
[ 86.559208][ T5789] ? __virt_addr_valid+0x17f/0x530
[ 86.559230][ T5789] ? __virt_addr_valid+0x17f/0x530
[ 86.559252][ T5789] ? __virt_addr_valid+0x45b/0x530
[ 86.559274][ T5789] ? __phys_addr+0xb6/0x170
[ 86.559296][ T5789] ? binder_add_device+0x5b/0xa0
[ 86.559311][ T5789] kasan_report+0x13f/0x180
[ 86.559332][ T5789] ? binder_add_device+0x5b/0xa0
[ 86.559349][ T5789] binder_add_device+0x5b/0xa0
[ 86.559364][ T5789] binderfs_binder_device_create+0x7bf/0x9c0
[ 86.559392][ T5789] binderfs_fill_super+0x940/0xd90
[ 86.559418][ T5789] ? __pfx_binderfs_fill_super+0x10/0x10
[ 86.559449][ T5789] ? shrinker_register+0x15c/0x220
[ 86.559468][ T5789] ? sget_fc+0x905/0x9c0
[ 86.559489][ T5789] ? __pfx_set_anon_super_fc+0x10/0x10
[ 86.559517][ T5789] ? __pfx_binderfs_fill_super+0x10/0x10
[ 86.559547][ T5789] get_tree_nodev+0xb3/0x140
[ 86.559578][ T5789] vfs_get_tree+0x8c/0x280
[ 86.559603][ T5789] do_new_mount+0x2ba/0xb40
[ 86.559621][ T5789] ? __pfx_do_new_mount+0x10/0x10
[ 86.559640][ T5789] __se_sys_mount+0x2d2/0x3c0
[ 86.559656][ T5789] ? lockdep_hardirqs_on_prepare+0x439/0x7a0
[ 86.559678][ T5789] ? __pfx___se_sys_mount+0x10/0x10
[ 86.559696][ T5789] ? __x64_sys_mount+0x1c/0xc0
[ 86.559713][ T5789] do_syscall_64+0x7e/0x180
[ 86.559739][ T5789] ? clear_bhb_loop+0x45/0xa0
[ 86.559760][ T5789] ? clear_bhb_loop+0x45/0xa0
[ 86.559782][ T5789] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 86.559806][ T5789] RIP: 0033:0x7f230bf7feba
[ 86.559824][ T5789] 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
[ 86.559836][ T5789] RSP: 002b:00007ffe3ff60ed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 86.559852][ T5789] RAX: ffffffffffffffda RBX: 00007f230bff16f1 RCX: 00007f230bf7feba
[ 86.559863][ T5789] RDX: 00007f230bffcaf7 RSI: 00007f230bff16f1 RDI: 00007f230bffcaf7
[ 86.559874][ T5789] RBP: 00007f230bff1900 R08: 0000000000000000 R09: 00000000000001ff
[ 86.559884][ T5789] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f230bfdc068
[ 86.559893][ T5789] R13: 00007f230bfdc048 R14: 0000000000000009 R15: 0000000000000000
[ 86.559908][ T5789]
[ 86.559913][ T5789]
[ 86.833384][ T5789] Allocated by task 5782:
[ 86.837709][ T5789] kasan_save_track+0x3b/0x70
[ 86.842395][ T5789] __kasan_kmalloc+0x94/0xb0
[ 86.846989][ T5789] __kmalloc_cache_noprof+0x237/0x370
[ 86.852391][ T5789] binderfs_binder_device_create+0x16c/0x9c0
[ 86.858407][ T5789] binderfs_fill_super+0x940/0xd90
[ 86.863547][ T5789] get_tree_nodev+0xb3/0x140
[ 86.868144][ T5789] vfs_get_tree+0x8c/0x280
[ 86.872655][ T5789] do_new_mount+0x2ba/0xb40
[ 86.877189][ T5789] __se_sys_mount+0x2d2/0x3c0
[ 86.881871][ T5789] do_syscall_64+0x7e/0x180
[ 86.886382][ T5789] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 86.892372][ T5789]
[ 86.894694][ T5789] Freed by task 5782:
[ 86.898684][ T5789] kasan_save_track+0x3b/0x70
[ 86.903468][ T5789] kasan_save_free_info+0x3c/0x50
[ 86.908492][ T5789] __kasan_slab_free+0x55/0x70
[ 86.913264][ T5789] kfree+0x18e/0x410
[ 86.917171][ T5789] evict+0x4e4/0x990
[ 86.921073][ T5789] __dentry_kill+0x200/0x610
[ 86.925671][ T5789] shrink_kill+0xa9/0x2c0
[ 86.930005][ T5789] shrink_dentry_list+0x2bc/0x5b0
[ 86.935034][ T5789] shrink_dcache_parent+0xc7/0x3b0
[ 86.940151][ T5789] do_one_tree+0x23/0xe0
[ 86.944398][ T5789] shrink_dcache_for_umount+0xb0/0x170
[ 86.949862][ T5789] generic_shutdown_super+0x66/0x2d0
[ 86.955152][ T5789] kill_litter_super+0x72/0xa0
[ 86.959928][ T5789] binderfs_kill_super+0x40/0x90
[ 86.964881][ T5789] deactivate_locked_super+0xc0/0x120
[ 86.970258][ T5789] cleanup_mnt+0x41f/0x4b0
[ 86.974780][ T5789] task_work_run+0x24b/0x310
[ 86.979478][ T5789] do_exit+0xa26/0x28d0
[ 86.983649][ T5789] do_group_exit+0x203/0x2b0
[ 86.988256][ T5789] get_signal+0x16ae/0x1740
[ 86.992801][ T5789] arch_do_signal_or_restart+0x92/0x860
[ 86.998373][ T5789] syscall_exit_to_user_mode+0xc9/0x320
[ 87.003925][ T5789] do_syscall_64+0x8a/0x180
[ 87.008435][ T5789] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 87.014365][ T5789]
[ 87.016699][ T5789] The buggy address belongs to the object at ffff88803365ec00
[ 87.016699][ T5789] which belongs to the cache kmalloc-512 of size 512
[ 87.030855][ T5789] The buggy address is located 8 bytes inside of
[ 87.030855][ T5789] freed 512-byte region [ffff88803365ec00, ffff88803365ee00)
[ 87.044481][ T5789]
[ 87.046806][ T5789] The buggy address belongs to the physical page:
[ 87.053237][ T5789] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3365c
[ 87.062026][ T5789] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 87.070538][ T5789] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 87.078112][ T5789] page_type: f5(slab)
[ 87.082128][ T5789] raw: 00fff00000000040 ffff88801a041c80 ffffea00009a5a00 dead000000000002
[ 87.090717][ T5789] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 87.099301][ T5789] head: 00fff00000000040 ffff88801a041c80 ffffea00009a5a00 dead000000000002
[ 87.107972][ T5789] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 87.116681][ T5789] head: 00fff00000000002 ffffea0000cd9701 ffffffffffffffff 0000000000000000
[ 87.125470][ T5789] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 87.134264][ T5789] page dumped because: kasan: bad access detected
[ 87.140692][ T5789] page_owner tracks the page as allocated
[ 87.146412][ T5789] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5154, tgid 5154 (udevd), ts 33938088135, free_ts 33934702225
[ 87.167427][ T5789] post_alloc_hook+0x1e0/0x220
[ 87.172302][ T5789] get_page_from_freelist+0x35e2/0x3720
[ 87.177872][ T5789] __alloc_frozen_pages_noprof+0x252/0x680
[ 87.183688][ T5789] alloc_pages_mpol+0x30d/0x660
[ 87.188579][ T5789] allocate_slab+0x8f/0x390
[ 87.193089][ T5789] ___slab_alloc+0xc35/0x1490
[ 87.197771][ T5789] __slab_alloc+0x58/0xa0
[ 87.202100][ T5789] __kmalloc_cache_noprof+0x26f/0x370
[ 87.207471][ T5789] do_epoll_create+0x79/0x350
[ 87.212217][ T5789] __x64_sys_epoll_create1+0x33/0x40
[ 87.217572][ T5789] do_syscall_64+0x7e/0x180
[ 87.222111][ T5789] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 87.228051][ T5789] page last free pid 5161 tgid 5161 stack trace:
[ 87.234397][ T5789] free_frozen_pages+0xddf/0x10a0
[ 87.239461][ T5789] stack_depot_save_flags+0x465/0x950
[ 87.244855][ T5789] kasan_save_track+0x4d/0x70
[ 87.249541][ T5789] kasan_save_free_info+0x3c/0x50
[ 87.254571][ T5789] __kasan_slab_free+0x55/0x70
[ 87.259342][ T5789] kmem_cache_free+0x18d/0x3f0
[ 87.264113][ T5789] rcu_core+0xaa6/0x1790
[ 87.268397][ T5789] handle_softirqs+0x2d0/0x990
[ 87.273273][ T5789] do_softirq+0x117/0x1e0
[ 87.277653][ T5789] __local_bh_enable_ip+0x1b5/0x1f0
[ 87.282873][ T5789] flush_thread+0x32/0xa0
[ 87.287231][ T5789] begin_new_exec+0x140f/0x20e0
[ 87.292094][ T5789] load_elf_binary+0x96f/0x2820
[ 87.296986][ T5789] bprm_execve+0x975/0x1420
[ 87.301627][ T5789] do_execveat_common+0x57f/0x710
[ 87.306669][ T5789] __x64_sys_execve+0x8e/0xa0
[ 87.311357][ T5789]
[ 87.313679][ T5789] Memory state around the buggy address:
[ 87.319307][ T5789] ffff88803365eb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 87.327702][ T5789] ffff88803365eb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 87.335884][ T5789] >ffff88803365ec00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 87.343951][ T5789] ^
[ 87.348296][ T5789] ffff88803365ec80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 87.356472][ T5789] ffff88803365ed00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 87.364580][ T5789] ==================================================================
[ 87.375693][ T9] cfg80211: failed to load regulatory.db
[ 87.380523][ T5789] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 87.380544][ T5789] CPU: 1 UID: 0 PID: 5789 Comm: syz-executor Not tainted 6.13.0-syzkaller-09196-gcd45f362fc1f #0
[ 87.380569][ T5789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 87.380584][ T5789] Call Trace:
[ 87.380593][ T5789]
[ 87.380601][ T5789] dump_stack_lvl+0x23d/0x360
[ 87.380635][ T5789] ? __pfx_dump_stack_lvl+0x10/0x10
[ 87.380663][ T5789] ? __pfx__printk+0x10/0x10
[ 87.380688][ T5789] ? preempt_schedule+0xdd/0xf0
[ 87.380715][ T5789] ? vscnprintf+0x59/0x80
[ 87.380737][ T5789] panic+0x345/0x880
[ 87.380762][ T5789] ? asm_sysvec_apic_timer_interrupt+0x16/0x20
[ 87.380794][ T5789] ? check_panic_on_warn+0x1d/0xa0
[ 87.380825][ T5789] ? __pfx_panic+0x10/0x10
[ 87.380853][ T5789] ? _raw_spin_unlock_irqrestore+0x12c/0x140
[ 87.380886][ T5789] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 87.380911][ T5789] ? print_report+0x4fe/0x540
[ 87.380942][ T5789] check_panic_on_warn+0x82/0xa0
[ 87.380973][ T5789] ? binder_add_device+0x5b/0xa0
[ 87.380995][ T5789] end_report+0x77/0x150
[ 87.381024][ T5789] kasan_report+0x150/0x180
[ 87.381054][ T5789] ? binder_add_device+0x5b/0xa0
[ 87.381080][ T5789] binder_add_device+0x5b/0xa0
[ 87.381101][ T5789] binderfs_binder_device_create+0x7bf/0x9c0
[ 87.381142][ T5789] binderfs_fill_super+0x940/0xd90
[ 87.381179][ T5789] ? __pfx_binderfs_fill_super+0x10/0x10
[ 87.381225][ T5789] ? shrinker_register+0x15c/0x220
[ 87.381252][ T5789] ? sget_fc+0x905/0x9c0
[ 87.381281][ T5789] ? __pfx_set_anon_super_fc+0x10/0x10
[ 87.381311][ T5789] ? __pfx_binderfs_fill_super+0x10/0x10
[ 87.381350][ T5789] get_tree_nodev+0xb3/0x140
[ 87.381379][ T5789] vfs_get_tree+0x8c/0x280
[ 87.381410][ T5789] do_new_mount+0x2ba/0xb40
[ 87.381434][ T5789] ? __pfx_do_new_mount+0x10/0x10
[ 87.560113][ T5789] __se_sys_mount+0x2d2/0x3c0
[ 87.564809][ T5789] ? lockdep_hardirqs_on_prepare+0x439/0x7a0
[ 87.570804][ T5789] ? __pfx___se_sys_mount+0x10/0x10
[ 87.576036][ T5789] ? __x64_sys_mount+0x1c/0xc0
[ 87.580826][ T5789] do_syscall_64+0x7e/0x180
[ 87.585358][ T5789] ? clear_bhb_loop+0x45/0xa0
[ 87.590081][ T5789] ? clear_bhb_loop+0x45/0xa0
[ 87.594820][ T5789] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 87.600759][ T5789] RIP: 0033:0x7f230bf7feba
[ 87.605207][ T5789] 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
[ 87.624837][ T5789] RSP: 002b:00007ffe3ff60ed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 87.633269][ T5789] RAX: ffffffffffffffda RBX: 00007f230bff16f1 RCX: 00007f230bf7feba
[ 87.641249][ T5789] RDX: 00007f230bffcaf7 RSI: 00007f230bff16f1 RDI: 00007f230bffcaf7
[ 87.649311][ T5789] RBP: 00007f230bff1900 R08: 0000000000000000 R09: 00000000000001ff
[ 87.657750][ T5789] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f230bfdc068
[ 87.665729][ T5789] R13: 00007f230bfdc048 R14: 0000000000000009 R15: 0000000000000000
[ 87.673734][ T5789]
[ 87.677114][ T5789] Kernel Offset: disabled
[ 87.681561][ T5789] 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-build1521728780=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at 65e8686b0e
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=65e8686b0e9e909b6ea5629f95a9b14e81927872 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241025-124232'" "-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=\"65e8686b0e9e909b6ea5629f95a9b14e81927872\"
/usr/bin/ld: /tmp/cc12UlkN.o: in function `test_cover_filter()':
executor.cc:(.text+0x1426b): warning: the use of `tempnam' is dangerous, better use `mkstemp'
/usr/bin/ld: /tmp/cc12UlkN.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