KASAN: slab-use-after-free Write in binder_add_device
netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
==================================================================
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 ffff88807db6e408 by task syz-executor/5106
CPU: 0 UID: 0 PID: 5106 Comm: syz-executor Not tainted 6.14.0-rc3-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: 0033:0x7ff2e4d7899a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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:00007fff40425988 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ff2e4de4e88 RCX: 00007ff2e4d7899a
RDX: 00007ff2e4def488 RSI: 00007ff2e4de4e88 RDI: 00007ff2e4def488
RBP: 00007fff404259c0 R08: 0000000000000000 R09: 00007fff404259c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff404259c0
R13: 00007fff404259c8 R14: 0000000000000009 R15: 0000000000000009
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 ffff88807db6e400
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff88807db6e400, ffff88807db6e600)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7db6c
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 ffff888014c41c80 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff888014c41c80 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0001f6db01 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 4607, tgid 4607 (udevd), ts 31942991723, free_ts 31769572786
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 4601 tgid 4601 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
__do_sys_execve fs/exec.c:2116 [inline]
__se_sys_execve fs/exec.c:2111 [inline]
__x64_sys_execve+0x78/0xb0 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
Memory state around the buggy address:
ffff88807db6e300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88807db6e380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88807db6e400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88807db6e480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88807db6e500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.10.56' (ED25519) to the list of known hosts.
2025/02/17 05:32:09 ignoring optional flag "sandboxArg"="0"
2025/02/17 05:32:09 ignoring optional flag "type"="gce"
2025/02/17 05:32:09 parsed 1 programs
syzkaller login: [ 66.669192][ T5090] cgroup: Unknown subsys name 'net'
[ 66.821688][ T5090] cgroup: Unknown subsys name 'cpuset'
[ 66.831605][ T5090] cgroup: Unknown subsys name 'rlimit'
[ 66.837485][ T5090] cgroup: Unknown subsys name 'memory'
[ 68.380571][ T5090] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 71.512992][ T5106] chnl_net:caif_netlink_parms(): no params data found
[ 71.624662][ T5106] bridge0: port 1(bridge_slave_0) entered blocking state
[ 71.636657][ T5106] bridge0: port 1(bridge_slave_0) entered disabled state
[ 71.650228][ T5106] bridge_slave_0: entered allmulticast mode
[ 71.664224][ T5106] bridge_slave_0: entered promiscuous mode
[ 71.680530][ T5106] bridge0: port 2(bridge_slave_1) entered blocking state
[ 71.696230][ T5106] bridge0: port 2(bridge_slave_1) entered disabled state
[ 71.706375][ T5106] bridge_slave_1: entered allmulticast mode
[ 71.717512][ T5106] bridge_slave_1: entered promiscuous mode
[ 71.755617][ T5106] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 71.771666][ T5106] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 71.804002][ T5106] team0: Port device team_slave_0 added
[ 71.812783][ T5106] team0: Port device team_slave_1 added
[ 71.843483][ T5106] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 71.857675][ T5106] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem.
[ 71.901426][ T5106] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 71.901885][ T1248] ieee802154 phy0 wpan0: encryption failed: -22
[ 71.924212][ T5106] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 71.931865][ T1248] ieee802154 phy1 wpan1: encryption failed: -22
[ 71.942050][ T5106] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem.
[ 71.993240][ T5106] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 72.045077][ T5106] hsr_slave_0: entered promiscuous mode
[ 72.054479][ T5106] hsr_slave_1: entered promiscuous mode
[ 72.189391][ T5106] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 72.206316][ T5106] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 72.223378][ T5106] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 72.242235][ T5106] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 72.285509][ T5106] bridge0: port 2(bridge_slave_1) entered blocking state
[ 72.297820][ T5106] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 72.310486][ T5106] bridge0: port 1(bridge_slave_0) entered blocking state
[ 72.322933][ T5106] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 72.406022][ T5106] 8021q: adding VLAN 0 to HW filter on device bond0
[ 72.441811][ T1086] bridge0: port 1(bridge_slave_0) entered disabled state
[ 72.456906][ T1086] bridge0: port 2(bridge_slave_1) entered disabled state
[ 72.486213][ T5106] 8021q: adding VLAN 0 to HW filter on device team0
[ 72.506216][ T79] bridge0: port 1(bridge_slave_0) entered blocking state
[ 72.515230][ T79] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 72.541131][ T79] bridge0: port 2(bridge_slave_1) entered blocking state
[ 72.553429][ T79] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 72.611743][ T5106] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network
[ 72.629366][ T5106] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[ 72.768331][ T5106] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 72.813066][ T5106] veth0_vlan: entered promiscuous mode
[ 72.830292][ T5106] veth1_vlan: entered promiscuous mode
[ 72.871409][ T5106] veth0_macvtap: entered promiscuous mode
[ 72.886466][ T5106] veth1_macvtap: entered promiscuous mode
[ 72.910193][ T5106] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 72.930877][ T5106] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 72.947986][ T5106] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 72.969104][ T5106] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 72.984203][ T5106] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 72.997753][ T5106] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 73.073229][ T5106] ==================================================================
[ 73.086396][ T5106] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[ 73.097917][ T5106] Write of size 8 at addr ffff88807db6e408 by task syz-executor/5106
[ 73.109769][ T5106]
[ 73.112690][ T5106] CPU: 0 UID: 0 PID: 5106 Comm: syz-executor Not tainted 6.14.0-rc3-syzkaller #0
[ 73.112714][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 73.112729][ T5106] Call Trace:
[ 73.112739][ T5106]
[ 73.112748][ T5106] dump_stack_lvl+0x241/0x360
[ 73.112769][ T5106] ? __pfx_dump_stack_lvl+0x10/0x10
[ 73.112786][ T5106] ? __pfx__printk+0x10/0x10
[ 73.112810][ T5106] ? _printk+0xd5/0x120
[ 73.112831][ T5106] ? __virt_addr_valid+0x183/0x530
[ 73.112848][ T5106] ? __virt_addr_valid+0x183/0x530
[ 73.112864][ T5106] print_report+0x169/0x550
[ 73.112884][ T5106] ? __virt_addr_valid+0x183/0x530
[ 73.112899][ T5106] ? __virt_addr_valid+0x183/0x530
[ 73.112914][ T5106] ? __virt_addr_valid+0x45f/0x530
[ 73.112929][ T5106] ? __phys_addr+0xba/0x170
[ 73.112945][ T5106] ? binder_add_device+0x5f/0xa0
[ 73.112964][ T5106] kasan_report+0x143/0x180
[ 73.112983][ T5106] ? binder_add_device+0x5f/0xa0
[ 73.113004][ T5106] binder_add_device+0x5f/0xa0
[ 73.113023][ T5106] binderfs_binder_device_create+0x7bf/0x9c0
[ 73.113045][ T5106] binderfs_fill_super+0x944/0xd90
[ 73.113065][ T5106] ? __pfx_binderfs_fill_super+0x10/0x10
[ 73.113091][ T5106] ? shrinker_register+0x160/0x230
[ 73.113107][ T5106] ? sget_fc+0x909/0x9c0
[ 73.113128][ T5106] ? __pfx_set_anon_super_fc+0x10/0x10
[ 73.113150][ T5106] ? __pfx_binderfs_fill_super+0x10/0x10
[ 73.113169][ T5106] get_tree_nodev+0xb7/0x140
[ 73.113192][ T5106] vfs_get_tree+0x90/0x290
[ 73.113207][ T5106] do_new_mount+0x2be/0xb40
[ 73.113224][ T5106] ? __pfx_do_new_mount+0x10/0x10
[ 73.113245][ T5106] __se_sys_mount+0x2d6/0x3c0
[ 73.113261][ T5106] ? lockdep_hardirqs_on_prepare+0x43d/0x7a0
[ 73.113279][ T5106] ? __pfx___se_sys_mount+0x10/0x10
[ 73.113297][ T5106] ? __x64_sys_mount+0x20/0xc0
[ 73.113313][ T5106] do_syscall_64+0x82/0x160
[ 73.113331][ T5106] ? clear_bhb_loop+0x25/0x80
[ 73.113352][ T5106] ? clear_bhb_loop+0x25/0x80
[ 73.113459][ T5106] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 73.113508][ T5106] RIP: 0033:0x7ff2e4d7899a
[ 73.114050][ T5106] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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
[ 73.114063][ T5106] RSP: 002b:00007fff40425988 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 73.114080][ T5106] RAX: ffffffffffffffda RBX: 00007ff2e4de4e88 RCX: 00007ff2e4d7899a
[ 73.114483][ T5106] RDX: 00007ff2e4def488 RSI: 00007ff2e4de4e88 RDI: 00007ff2e4def488
[ 73.114498][ T5106] RBP: 00007fff404259c0 R08: 0000000000000000 R09: 00007fff404259c0
[ 73.114509][ T5106] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff404259c0
[ 73.114518][ T5106] R13: 00007fff404259c8 R14: 0000000000000009 R15: 0000000000000009
[ 73.114535][ T5106]
[ 73.114540][ T5106]
[ 73.442979][ T5106] Allocated by task 5100:
[ 73.447407][ T5106] kasan_save_track+0x3f/0x80
[ 73.452100][ T5106] __kasan_kmalloc+0x7d/0x90
[ 73.456704][ T5106] __kmalloc_cache_noprof+0x23e/0x360
[ 73.462096][ T5106] binderfs_binder_device_create+0x16c/0x9c0
[ 73.468484][ T5106] binderfs_fill_super+0x944/0xd90
[ 73.473876][ T5106] get_tree_nodev+0xb7/0x140
[ 73.478679][ T5106] vfs_get_tree+0x90/0x290
[ 73.483303][ T5106] do_new_mount+0x2be/0xb40
[ 73.488110][ T5106] __se_sys_mount+0x2d6/0x3c0
[ 73.492895][ T5106] do_syscall_64+0x82/0x160
[ 73.497579][ T5106] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 73.503580][ T5106]
[ 73.506115][ T5106] Freed by task 5100:
[ 73.510475][ T5106] kasan_save_track+0x3f/0x80
[ 73.515323][ T5106] kasan_save_free_info+0x40/0x50
[ 73.520451][ T5106] __kasan_slab_free+0x36/0x50
[ 73.525599][ T5106] kfree+0x181/0x430
[ 73.529727][ T5106] evict+0x4e8/0x9a0
[ 73.533681][ T5106] __dentry_kill+0x200/0x610
[ 73.538330][ T5106] shrink_kill+0xa9/0x2c0
[ 73.542885][ T5106] shrink_dentry_list+0x2c0/0x5b0
[ 73.548039][ T5106] shrink_dcache_parent+0xcb/0x3b0
[ 73.553525][ T5106] do_one_tree+0x23/0xe0
[ 73.557969][ T5106] shrink_dcache_for_umount+0xb4/0x180
[ 73.563460][ T5106] generic_shutdown_super+0x6a/0x2d0
[ 73.568872][ T5106] kill_litter_super+0x76/0xb0
[ 73.573857][ T5106] binderfs_kill_super+0x44/0x90
[ 73.578908][ T5106] deactivate_locked_super+0xc4/0x120
[ 73.584423][ T5106] cleanup_mnt+0x41f/0x4b0
[ 73.589032][ T5106] task_work_run+0x24f/0x310
[ 73.593779][ T5106] do_exit+0xa2a/0x28d0
[ 73.597967][ T5106] do_group_exit+0x207/0x2c0
[ 73.602589][ T5106] get_signal+0x16a6/0x1740
[ 73.607341][ T5106] arch_do_signal_or_restart+0x96/0x830
[ 73.612921][ T5106] syscall_exit_to_user_mode+0xcd/0x330
[ 73.618671][ T5106] do_syscall_64+0x8e/0x160
[ 73.623342][ T5106] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 73.629367][ T5106]
[ 73.631780][ T5106] The buggy address belongs to the object at ffff88807db6e400
[ 73.631780][ T5106] which belongs to the cache kmalloc-512 of size 512
[ 73.646024][ T5106] The buggy address is located 8 bytes inside of
[ 73.646024][ T5106] freed 512-byte region [ffff88807db6e400, ffff88807db6e600)
[ 73.659922][ T5106]
[ 73.662352][ T5106] The buggy address belongs to the physical page:
[ 73.668973][ T5106] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7db6c
[ 73.678013][ T5106] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 73.687068][ T5106] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 73.694709][ T5106] page_type: f5(slab)
[ 73.698787][ T5106] raw: 00fff00000000040 ffff888014c41c80 dead000000000100 dead000000000122
[ 73.707377][ T5106] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 73.716157][ T5106] head: 00fff00000000040 ffff888014c41c80 dead000000000100 dead000000000122
[ 73.725044][ T5106] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 73.733814][ T5106] head: 00fff00000000002 ffffea0001f6db01 ffffffffffffffff 0000000000000000
[ 73.742577][ T5106] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 73.751550][ T5106] page dumped because: kasan: bad access detected
[ 73.757992][ T5106] page_owner tracks the page as allocated
[ 73.763895][ T5106] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 4607, tgid 4607 (udevd), ts 31942991723, free_ts 31769572786
[ 73.783977][ T5106] post_alloc_hook+0x1ec/0x220
[ 73.788764][ T5106] get_page_from_freelist+0x3607/0x3750
[ 73.794511][ T5106] __alloc_frozen_pages_noprof+0x256/0x690
[ 73.800352][ T5106] alloc_pages_mpol+0x311/0x660
[ 73.805423][ T5106] allocate_slab+0x8f/0x3a0
[ 73.810029][ T5106] ___slab_alloc+0xc35/0x14a0
[ 73.815181][ T5106] __slab_alloc+0x58/0xa0
[ 73.821010][ T5106] __kmalloc_cache_noprof+0x276/0x360
[ 73.826681][ T5106] tomoyo_find_next_domain+0x11b/0x1dd0
[ 73.832845][ T5106] tomoyo_bprm_check_security+0x117/0x180
[ 73.838915][ T5106] security_bprm_check+0x86/0x250
[ 73.845202][ T5106] bprm_execve+0x8d3/0x1430
[ 73.850660][ T5106] do_execveat_common+0x57f/0x710
[ 73.856320][ T5106] __x64_sys_execve+0x92/0xb0
[ 73.861273][ T5106] do_syscall_64+0x82/0x160
[ 73.866039][ T5106] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 73.872082][ T5106] page last free pid 4601 tgid 4601 stack trace:
[ 73.878598][ T5106] free_frozen_pages+0xdf5/0x10b0
[ 73.883821][ T5106] __put_partials+0x15e/0x1b0
[ 73.888622][ T5106] put_cpu_partial+0x17c/0x250
[ 73.893578][ T5106] __slab_free+0x290/0x380
[ 73.898116][ T5106] qlist_free_all+0x9a/0x140
[ 73.902828][ T5106] kasan_quarantine_reduce+0x14f/0x170
[ 73.908314][ T5106] __kasan_slab_alloc+0x23/0x60
[ 73.913270][ T5106] kmem_cache_alloc_noprof+0x1d4/0x340
[ 73.918935][ T5106] getname_flags+0xb7/0x540
[ 73.923483][ T5106] __x64_sys_execve+0x78/0xb0
[ 73.928304][ T5106] do_syscall_64+0x82/0x160
[ 73.932924][ T5106] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 73.939089][ T5106]
[ 73.941670][ T5106] Memory state around the buggy address:
[ 73.948470][ T5106] ffff88807db6e300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 73.956809][ T5106] ffff88807db6e380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 73.965247][ T5106] >ffff88807db6e400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 73.973893][ T5106] ^
[ 73.978599][ T5106] ffff88807db6e480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 73.987497][ T5106] ffff88807db6e500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 73.996151][ T5106] ==================================================================
[ 74.011249][ T5106] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 74.018618][ T5106] CPU: 0 UID: 0 PID: 5106 Comm: syz-executor Not tainted 6.14.0-rc3-syzkaller #0
[ 74.027991][ T5106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 74.038418][ T5106] Call Trace:
[ 74.041699][ T5106]
[ 74.044716][ T5106] dump_stack_lvl+0x241/0x360
[ 74.049429][ T5106] ? __pfx_dump_stack_lvl+0x10/0x10
[ 74.054765][ T5106] ? __pfx__printk+0x10/0x10
[ 74.059565][ T5106] ? preempt_schedule+0xe1/0xf0
[ 74.064427][ T5106] ? vscnprintf+0x5d/0x90
[ 74.068781][ T5106] panic+0x349/0x880
[ 74.072723][ T5106] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 74.079371][ T5106] ? check_panic_on_warn+0x21/0xb0
[ 74.084602][ T5106] ? __pfx_panic+0x10/0x10
[ 74.089168][ T5106] ? _raw_spin_unlock_irqrestore+0x130/0x140
[ 74.095170][ T5106] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 74.101595][ T5106] ? print_report+0x502/0x550
[ 74.106316][ T5106] check_panic_on_warn+0x86/0xb0
[ 74.111478][ T5106] ? binder_add_device+0x5f/0xa0
[ 74.116453][ T5106] end_report+0x77/0x150
[ 74.120840][ T5106] kasan_report+0x154/0x180
[ 74.125383][ T5106] ? binder_add_device+0x5f/0xa0
[ 74.130430][ T5106] binder_add_device+0x5f/0xa0
[ 74.135314][ T5106] binderfs_binder_device_create+0x7bf/0x9c0
[ 74.141388][ T5106] binderfs_fill_super+0x944/0xd90
[ 74.146829][ T5106] ? __pfx_binderfs_fill_super+0x10/0x10
[ 74.152605][ T5106] ? shrinker_register+0x160/0x230
[ 74.157909][ T5106] ? sget_fc+0x909/0x9c0
[ 74.162395][ T5106] ? __pfx_set_anon_super_fc+0x10/0x10
[ 74.168339][ T5106] ? __pfx_binderfs_fill_super+0x10/0x10
[ 74.174014][ T5106] get_tree_nodev+0xb7/0x140
[ 74.178715][ T5106] vfs_get_tree+0x90/0x290
[ 74.183233][ T5106] do_new_mount+0x2be/0xb40
[ 74.187931][ T5106] ? __pfx_do_new_mount+0x10/0x10
[ 74.193282][ T5106] __se_sys_mount+0x2d6/0x3c0
[ 74.198139][ T5106] ? lockdep_hardirqs_on_prepare+0x43d/0x7a0
[ 74.204459][ T5106] ? __pfx___se_sys_mount+0x10/0x10
[ 74.209814][ T5106] ? __x64_sys_mount+0x20/0xc0
[ 74.215148][ T5106] do_syscall_64+0x82/0x160
[ 74.220137][ T5106] ? clear_bhb_loop+0x25/0x80
[ 74.224876][ T5106] ? clear_bhb_loop+0x25/0x80
[ 74.229701][ T5106] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 74.235802][ T5106] RIP: 0033:0x7ff2e4d7899a
[ 74.240326][ T5106] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 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
[ 74.260836][ T5106] RSP: 002b:00007fff40425988 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 74.269473][ T5106] RAX: ffffffffffffffda RBX: 00007ff2e4de4e88 RCX: 00007ff2e4d7899a
[ 74.277754][ T5106] RDX: 00007ff2e4def488 RSI: 00007ff2e4de4e88 RDI: 00007ff2e4def488
[ 74.286099][ T5106] RBP: 00007fff404259c0 R08: 0000000000000000 R09: 00007fff404259c0
[ 74.294886][ T5106] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff404259c0
[ 74.304185][ T5106] R13: 00007fff404259c8 R14: 0000000000000009 R15: 0000000000000009
[ 74.312794][ T5106]
[ 74.316280][ T5106] Kernel Offset: disabled
[ 74.320788][ T5106] 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-build565076882=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at 46eb10b79c
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=46eb10b79c61c4032281212d862c913683ab32a0 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240726-134819'" "-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=\"46eb10b79c61c4032281212d862c913683ab32a0\"
/usr/bin/ld: /tmp/ccYmXHtT.o: in function `test_cover_filter()':
executor.cc:(.text+0x13e3b): warning: the use of `tempnam' is dangerous, better use `mkstemp'
/usr/bin/ld: /tmp/ccYmXHtT.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x2e6): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking