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 ffff88802e142c08 by task syz-executor/5110
CPU: 0 UID: 0 PID: 5110 Comm: syz-executor Not tainted 6.14.0-rc1-syzkaller #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+0x90/0x290 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+0x82/0x160 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fb3df77f79a
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:00007ffeab875da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fb3df7f0659 RCX: 00007fb3df77f79a
RDX: 00007fb3df7fba5f RSI: 00007fb3df7f0659 RDI: 00007fb3df7fba5f
RBP: 00007fb3df7f0868 R08: 0000000000000000 R09: 00000000000001ff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb3df7db040
R13: 00007fb3df7db020 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5100:
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+0x7d/0x90 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__kmalloc_cache_noprof+0x23e/0x360 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+0x90/0x290 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+0x82/0x160 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
Freed by task 5100:
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+0x36/0x50 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+0x181/0x430 mm/slub.c:4757
evict+0x4e8/0x9a0 fs/inode.c:796
__dentry_kill+0x200/0x610 fs/dcache.c:643
shrink_kill+0xa9/0x2c0 fs/dcache.c:1088
shrink_dentry_list+0x2c0/0x5b0 fs/dcache.c:1115
shrink_dcache_parent+0xcb/0x3b0
do_one_tree+0x23/0xe0 fs/dcache.c:1578
shrink_dcache_for_umount+0xb4/0x180 fs/dcache.c:1595
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+0xc4/0x120 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/0x28d0 kernel/exit.c:938
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
get_signal+0x16a6/0x1740 kernel/signal.c:3036
arch_do_signal_or_restart+0x96/0x830 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+0xcd/0x330 kernel/entry/common.c:218
do_syscall_64+0x8e/0x160 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x76/0x7e
The buggy address belongs to the object at ffff88802e142c00
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff88802e142c00, ffff88802e142e00)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2e140
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 ffff88801a041c80 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801a041c80 0000000000000000 dead000000000001
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0000b85001 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 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 4594, tgid 4594 (udevd), ts 28759489505, free_ts 26575703032
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1ec/0x220 mm/page_alloc.c:1551
prep_new_page mm/page_alloc.c:1559 [inline]
get_page_from_freelist+0x3607/0x3750 mm/page_alloc.c:3477
__alloc_frozen_pages_noprof+0x256/0x690 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+0xc35/0x14a0 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+0x276/0x360 mm/slub.c:4320
kmalloc_noprof include/linux/slab.h:901 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
tomoyo_find_next_domain+0x11b/0x1dd0 security/tomoyo/domain.c:710
tomoyo_bprm_check_security+0x117/0x180 security/tomoyo/tomoyo.c:102
security_bprm_check+0x86/0x250 security/security.c:1302
search_binary_handler fs/exec.c:1765 [inline]
exec_binprm fs/exec.c:1807 [inline]
bprm_execve+0x8d3/0x1430 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+0x92/0xb0 fs/exec.c:2111
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
page last free pid 4562 tgid 4562 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_frozen_pages+0xdf5/0x10b0 mm/page_alloc.c:2660
discard_slab mm/slub.c:2684 [inline]
__put_partials+0x15e/0x1b0 mm/slub.c:3153
put_cpu_partial+0x17c/0x250 mm/slub.c:3228
__slab_free+0x290/0x380 mm/slub.c:4479
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x23/0x60 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_noprof+0x1d4/0x340 mm/slub.c:4171
getname_flags+0xb7/0x540 fs/namei.c:139
getname_maybe_null include/linux/fs.h:2848 [inline]
vfs_fstatat+0x3f/0x130 fs/stat.c:361
__do_sys_newfstatat fs/stat.c:530 [inline]
__se_sys_newfstatat fs/stat.c:524 [inline]
__x64_sys_newfstatat+0x11d/0x1a0 fs/stat.c:524
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
Memory state around the buggy address:
ffff88802e142b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88802e142b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88802e142c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88802e142c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88802e142d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.1.181' (ED25519) to the list of known hosts.
2025/02/06 06:09:30 ignoring optional flag "sandboxArg"="0"
2025/02/06 06:09:30 parsed 1 programs
[ 68.733970][ T5091] cgroup: Unknown subsys name 'net'
[ 68.917561][ T5091] cgroup: Unknown subsys name 'cpuset'
[ 68.926454][ T5091] cgroup: Unknown subsys name 'rlimit'
[ 68.932062][ T5091] cgroup: Unknown subsys name 'memory'
[ 70.354283][ T5091] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 71.621869][ T1247] ieee802154 phy0 wpan0: encryption failed: -22
[ 71.628464][ T1247] ieee802154 phy1 wpan1: encryption failed: -22
[ 72.919871][ T5102] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 72.928257][ T5102] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 72.936321][ T5102] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 72.945498][ T5102] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 72.953206][ T5102] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[ 72.960895][ T5102] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 73.263977][ T5110] ==================================================================
[ 73.272068][ T5110] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[ 73.279804][ T5110] Write of size 8 at addr ffff88802e142c08 by task syz-executor/5110
[ 73.287862][ T5110]
[ 73.290213][ T5110] CPU: 0 UID: 0 PID: 5110 Comm: syz-executor Not tainted 6.14.0-rc1-syzkaller #0
[ 73.290229][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 73.290245][ T5110] Call Trace:
[ 73.290251][ T5110]
[ 73.290257][ T5110] dump_stack_lvl+0x241/0x360
[ 73.290276][ T5110] ? __pfx_dump_stack_lvl+0x10/0x10
[ 73.290290][ T5110] ? __pfx__printk+0x10/0x10
[ 73.290320][ T5110] ? _printk+0xd5/0x120
[ 73.290341][ T5110] ? __virt_addr_valid+0x183/0x530
[ 73.290358][ T5110] ? __virt_addr_valid+0x183/0x530
[ 73.290379][ T5110] print_report+0x169/0x550
[ 73.290399][ T5110] ? __virt_addr_valid+0x183/0x530
[ 73.290414][ T5110] ? __virt_addr_valid+0x183/0x530
[ 73.290428][ T5110] ? __virt_addr_valid+0x45f/0x530
[ 73.290443][ T5110] ? __phys_addr+0xba/0x170
[ 73.290458][ T5110] ? binder_add_device+0x5f/0xa0
[ 73.290476][ T5110] kasan_report+0x143/0x180
[ 73.290495][ T5110] ? binder_add_device+0x5f/0xa0
[ 73.290514][ T5110] binder_add_device+0x5f/0xa0
[ 73.290531][ T5110] binderfs_binder_device_create+0x7bf/0x9c0
[ 73.290551][ T5110] binderfs_fill_super+0x944/0xd90
[ 73.290569][ T5110] ? __pfx_binderfs_fill_super+0x10/0x10
[ 73.290598][ T5110] ? shrinker_register+0x160/0x230
[ 73.290615][ T5110] ? sget_fc+0x909/0x9c0
[ 73.290635][ T5110] ? __pfx_set_anon_super_fc+0x10/0x10
[ 73.290657][ T5110] ? __pfx_binderfs_fill_super+0x10/0x10
[ 73.290673][ T5110] get_tree_nodev+0xb7/0x140
[ 73.290695][ T5110] vfs_get_tree+0x90/0x290
[ 73.290710][ T5110] do_new_mount+0x2be/0xb40
[ 73.290730][ T5110] ? __pfx_do_new_mount+0x10/0x10
[ 73.290748][ T5110] __se_sys_mount+0x2d6/0x3c0
[ 73.290764][ T5110] ? lockdep_hardirqs_on_prepare+0x43d/0x7a0
[ 73.290782][ T5110] ? __pfx___se_sys_mount+0x10/0x10
[ 73.290799][ T5110] ? __x64_sys_mount+0x20/0xc0
[ 73.290815][ T5110] do_syscall_64+0x82/0x160
[ 73.290831][ T5110] ? clear_bhb_loop+0x25/0x80
[ 73.290852][ T5110] ? clear_bhb_loop+0x25/0x80
[ 73.290873][ T5110] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 73.290896][ T5110] RIP: 0033:0x7fb3df77f79a
[ 73.290914][ T5110] 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
[ 73.290926][ T5110] RSP: 002b:00007ffeab875da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 73.290943][ T5110] RAX: ffffffffffffffda RBX: 00007fb3df7f0659 RCX: 00007fb3df77f79a
[ 73.290954][ T5110] RDX: 00007fb3df7fba5f RSI: 00007fb3df7f0659 RDI: 00007fb3df7fba5f
[ 73.290964][ T5110] RBP: 00007fb3df7f0868 R08: 0000000000000000 R09: 00000000000001ff
[ 73.290973][ T5110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb3df7db040
[ 73.290983][ T5110] R13: 00007fb3df7db020 R14: 0000000000000009 R15: 0000000000000000
[ 73.290997][ T5110]
[ 73.291002][ T5110]
[ 73.561729][ T5110] Allocated by task 5100:
[ 73.566068][ T5110] kasan_save_track+0x3f/0x80
[ 73.570747][ T5110] __kasan_kmalloc+0x7d/0x90
[ 73.575332][ T5110] __kmalloc_cache_noprof+0x23e/0x360
[ 73.580726][ T5110] binderfs_binder_device_create+0x16c/0x9c0
[ 73.586729][ T5110] binderfs_fill_super+0x944/0xd90
[ 73.591856][ T5110] get_tree_nodev+0xb7/0x140
[ 73.596450][ T5110] vfs_get_tree+0x90/0x290
[ 73.600879][ T5110] do_new_mount+0x2be/0xb40
[ 73.605377][ T5110] __se_sys_mount+0x2d6/0x3c0
[ 73.610086][ T5110] do_syscall_64+0x82/0x160
[ 73.614596][ T5110] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 73.620502][ T5110]
[ 73.622851][ T5110] Freed by task 5100:
[ 73.626846][ T5110] kasan_save_track+0x3f/0x80
[ 73.631526][ T5110] kasan_save_free_info+0x40/0x50
[ 73.636573][ T5110] __kasan_slab_free+0x36/0x50
[ 73.641348][ T5110] kfree+0x181/0x430
[ 73.645242][ T5110] evict+0x4e8/0x9a0
[ 73.649137][ T5110] __dentry_kill+0x200/0x610
[ 73.653748][ T5110] shrink_kill+0xa9/0x2c0
[ 73.658110][ T5110] shrink_dentry_list+0x2c0/0x5b0
[ 73.663133][ T5110] shrink_dcache_parent+0xcb/0x3b0
[ 73.668264][ T5110] do_one_tree+0x23/0xe0
[ 73.672518][ T5110] shrink_dcache_for_umount+0xb4/0x180
[ 73.677975][ T5110] generic_shutdown_super+0x6a/0x2d0
[ 73.683265][ T5110] kill_litter_super+0x76/0xb0
[ 73.688029][ T5110] binderfs_kill_super+0x44/0x90
[ 73.692961][ T5110] deactivate_locked_super+0xc4/0x120
[ 73.698336][ T5110] cleanup_mnt+0x41f/0x4b0
[ 73.702747][ T5110] task_work_run+0x24f/0x310
[ 73.707334][ T5110] do_exit+0xa2a/0x28d0
[ 73.711487][ T5110] do_group_exit+0x207/0x2c0
[ 73.716089][ T5110] get_signal+0x16a6/0x1740
[ 73.720608][ T5110] arch_do_signal_or_restart+0x96/0x830
[ 73.726159][ T5110] syscall_exit_to_user_mode+0xcd/0x330
[ 73.731706][ T5110] do_syscall_64+0x8e/0x160
[ 73.736295][ T5110] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 73.742186][ T5110]
[ 73.744523][ T5110] The buggy address belongs to the object at ffff88802e142c00
[ 73.744523][ T5110] which belongs to the cache kmalloc-512 of size 512
[ 73.758570][ T5110] The buggy address is located 8 bytes inside of
[ 73.758570][ T5110] freed 512-byte region [ffff88802e142c00, ffff88802e142e00)
[ 73.772276][ T5110]
[ 73.774597][ T5110] The buggy address belongs to the physical page:
[ 73.781003][ T5110] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2e140
[ 73.789775][ T5110] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 73.798363][ T5110] anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 73.806346][ T5110] page_type: f5(slab)
[ 73.810326][ T5110] raw: 00fff00000000040 ffff88801a041c80 0000000000000000 dead000000000001
[ 73.818911][ T5110] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 73.827503][ T5110] head: 00fff00000000040 ffff88801a041c80 0000000000000000 dead000000000001
[ 73.836175][ T5110] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 73.844839][ T5110] head: 00fff00000000002 ffffea0000b85001 ffffffffffffffff 0000000000000000
[ 73.853524][ T5110] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 73.862182][ T5110] page dumped because: kasan: bad access detected
[ 73.868597][ T5110] page_owner tracks the page as allocated
[ 73.874303][ T5110] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 4594, tgid 4594 (udevd), ts 28759489505, free_ts 26575703032
[ 73.894274][ T5110] post_alloc_hook+0x1ec/0x220
[ 73.899036][ T5110] get_page_from_freelist+0x3607/0x3750
[ 73.904576][ T5110] __alloc_frozen_pages_noprof+0x256/0x690
[ 73.910377][ T5110] alloc_pages_mpol+0x311/0x660
[ 73.915232][ T5110] allocate_slab+0x8f/0x3a0
[ 73.919736][ T5110] ___slab_alloc+0xc35/0x14a0
[ 73.924419][ T5110] __slab_alloc+0x58/0xa0
[ 73.928741][ T5110] __kmalloc_cache_noprof+0x276/0x360
[ 73.934125][ T5110] tomoyo_find_next_domain+0x11b/0x1dd0
[ 73.939666][ T5110] tomoyo_bprm_check_security+0x117/0x180
[ 73.945385][ T5110] security_bprm_check+0x86/0x250
[ 73.950405][ T5110] bprm_execve+0x8d3/0x1430
[ 73.954920][ T5110] do_execveat_common+0x57f/0x710
[ 73.959937][ T5110] __x64_sys_execve+0x92/0xb0
[ 73.964612][ T5110] do_syscall_64+0x82/0x160
[ 73.969109][ T5110] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 73.975103][ T5110] page last free pid 4562 tgid 4562 stack trace:
[ 73.981417][ T5110] free_frozen_pages+0xdf5/0x10b0
[ 73.986456][ T5110] __put_partials+0x15e/0x1b0
[ 73.991129][ T5110] put_cpu_partial+0x17c/0x250
[ 73.995887][ T5110] __slab_free+0x290/0x380
[ 74.000299][ T5110] qlist_free_all+0x9a/0x140
[ 74.004913][ T5110] kasan_quarantine_reduce+0x14f/0x170
[ 74.010373][ T5110] __kasan_slab_alloc+0x23/0x60
[ 74.015220][ T5110] kmem_cache_alloc_noprof+0x1d4/0x340
[ 74.020708][ T5110] getname_flags+0xb7/0x540
[ 74.025212][ T5110] vfs_fstatat+0x3f/0x130
[ 74.029540][ T5110] __x64_sys_newfstatat+0x11d/0x1a0
[ 74.034736][ T5110] do_syscall_64+0x82/0x160
[ 74.039235][ T5110] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 74.045129][ T5110]
[ 74.047443][ T5110] Memory state around the buggy address:
[ 74.053498][ T5110] ffff88802e142b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 74.061551][ T5110] ffff88802e142b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 74.069608][ T5110] >ffff88802e142c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 74.077660][ T5110] ^
[ 74.081978][ T5110] ffff88802e142c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 74.090051][ T5110] ffff88802e142d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 74.098121][ T5110] ==================================================================
[ 74.108067][ T5110] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 74.115297][ T5110] CPU: 0 UID: 0 PID: 5110 Comm: syz-executor Not tainted 6.14.0-rc1-syzkaller #0
[ 74.124527][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 74.134630][ T5110] Call Trace:
[ 74.137915][ T5110]
[ 74.140842][ T5110] dump_stack_lvl+0x241/0x360
[ 74.145517][ T5110] ? __pfx_dump_stack_lvl+0x10/0x10
[ 74.150708][ T5110] ? __pfx__printk+0x10/0x10
[ 74.155302][ T5110] ? preempt_schedule+0xe1/0xf0
[ 74.160160][ T5110] ? vscnprintf+0x5d/0x90
[ 74.164588][ T5110] panic+0x349/0x880
[ 74.168505][ T5110] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 74.174687][ T5110] ? check_panic_on_warn+0x21/0xb0
[ 74.179829][ T5110] ? __pfx_panic+0x10/0x10
[ 74.184257][ T5110] ? _raw_spin_unlock_irqrestore+0x130/0x140
[ 74.190245][ T5110] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 74.196575][ T5110] ? print_report+0x502/0x550
[ 74.201256][ T5110] check_panic_on_warn+0x86/0xb0
[ 74.206208][ T5110] ? binder_add_device+0x5f/0xa0
[ 74.211142][ T5110] end_report+0x77/0x150
[ 74.215409][ T5110] kasan_report+0x154/0x180
[ 74.219934][ T5110] ? binder_add_device+0x5f/0xa0
[ 74.224985][ T5110] binder_add_device+0x5f/0xa0
[ 74.229755][ T5110] binderfs_binder_device_create+0x7bf/0x9c0
[ 74.235739][ T5110] binderfs_fill_super+0x944/0xd90
[ 74.240849][ T5110] ? __pfx_binderfs_fill_super+0x10/0x10
[ 74.246505][ T5110] ? shrinker_register+0x160/0x230
[ 74.251612][ T5110] ? sget_fc+0x909/0x9c0
[ 74.255946][ T5110] ? __pfx_set_anon_super_fc+0x10/0x10
[ 74.261410][ T5110] ? __pfx_binderfs_fill_super+0x10/0x10
[ 74.267045][ T5110] get_tree_nodev+0xb7/0x140
[ 74.271672][ T5110] vfs_get_tree+0x90/0x290
[ 74.276097][ T5110] do_new_mount+0x2be/0xb40
[ 74.280598][ T5110] ? __pfx_do_new_mount+0x10/0x10
[ 74.285620][ T5110] __se_sys_mount+0x2d6/0x3c0
[ 74.290292][ T5110] ? lockdep_hardirqs_on_prepare+0x43d/0x7a0
[ 74.296290][ T5110] ? __pfx___se_sys_mount+0x10/0x10
[ 74.301485][ T5110] ? __x64_sys_mount+0x20/0xc0
[ 74.306247][ T5110] do_syscall_64+0x82/0x160
[ 74.310746][ T5110] ? clear_bhb_loop+0x25/0x80
[ 74.315429][ T5110] ? clear_bhb_loop+0x25/0x80
[ 74.320107][ T5110] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 74.326519][ T5110] RIP: 0033:0x7fb3df77f79a
[ 74.330950][ T5110] 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
[ 74.350740][ T5110] RSP: 002b:00007ffeab875da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 74.359170][ T5110] RAX: ffffffffffffffda RBX: 00007fb3df7f0659 RCX: 00007fb3df77f79a
[ 74.367168][ T5110] RDX: 00007fb3df7fba5f RSI: 00007fb3df7f0659 RDI: 00007fb3df7fba5f
[ 74.375143][ T5110] RBP: 00007fb3df7f0868 R08: 0000000000000000 R09: 00000000000001ff
[ 74.383130][ T5110] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb3df7db040
[ 74.391530][ T5110] R13: 00007fb3df7db020 R14: 0000000000000009 R15: 0000000000000000
[ 74.399516][ T5110]
[ 74.403003][ T5110] Kernel Offset: disabled
[ 74.407352][ T5110] 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-build330527969=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at cd6fc0a301
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=cd6fc0a3018e5d793bdcca6530622493f5e88307 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241018-123137'" "-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=\"cd6fc0a3018e5d793bdcca6530622493f5e88307\"
/usr/bin/ld: /tmp/ccc8nwCV.o: in function `test_cover_filter()':
executor.cc:(.text+0x1424b): warning: the use of `tempnam' is dangerous, better use `mkstemp'
/usr/bin/ld: /tmp/ccc8nwCV.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