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 ffff88803372ec08 by task syz-executor/5782
CPU: 0 UID: 0 PID: 5782 Comm: syz-executor Not tainted 6.14.0-rc2-syzkaller-00253-g78a632a2086c #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: 0033:0x7efe2a58e54a
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:00007ffffa5d98c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007efe2a60e663 RCX: 00007efe2a58e54a
RDX: 00007efe2a61dda7 RSI: 00007efe2a60e663 RDI: 00007efe2a61dda7
RBP: 00007efe2a60e8ac R08: 0000000000000000 R09: 00000000000001ff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007efe2a5eb1a8
R13: 00007efe2a5eb180 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5776:
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 5776:
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 ffff88803372ec00
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff88803372ec00, ffff88803372ee00)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3372c
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 ffffea0000a2b600 dead000000000002
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801a441c80 ffffea0000a2b600 dead000000000002
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000002 ffffea0000cdcb01 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 5143, tgid 5143 (udevd), ts 34062507745, free_ts 34012008209
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]
kernfs_fop_open+0x3dc/0xd00 fs/kernfs/file.c:623
do_dentry_open+0xdea/0x1960 fs/open.c:956
vfs_open+0x37/0x360 fs/open.c:1086
do_open fs/namei.c:3830 [inline]
path_openat+0x2c79/0x3580 fs/namei.c:3989
do_filp_open+0x27b/0x4d0 fs/namei.c:4016
do_sys_openat2+0x13a/0x1d0 fs/open.c:1428
do_sys_open fs/open.c:1443 [inline]
__do_sys_openat fs/open.c:1459 [inline]
__se_sys_openat fs/open.c:1454 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1454
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x7e/0x180 arch/x86/entry/common.c:83
page last free pid 5148 tgid 5148 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
__slab_free+0x2be/0x370 mm/slub.c:4520
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9a/0x130 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x1f/0x70 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_lru_noprof+0x1d5/0x360 mm/slub.c:4183
shmem_alloc_inode+0x24/0x40 mm/shmem.c:5137
alloc_inode+0x65/0x1a0 fs/inode.c:336
new_inode_pseudo fs/inode.c:1174 [inline]
new_inode+0x1e/0x1d0 fs/inode.c:1193
__shmem_get_inode mm/shmem.c:3035 [inline]
shmem_get_inode+0x320/0xda0 mm/shmem.c:3134
shmem_mknod+0x18d/0x3c0 mm/shmem.c:3831
lookup_open fs/namei.c:3651 [inline]
open_last_lookups fs/namei.c:3750 [inline]
path_openat+0x1938/0x3580 fs/namei.c:3986
do_filp_open+0x27b/0x4d0 fs/namei.c:4016
do_sys_openat2+0x13a/0x1d0 fs/open.c:1428
do_sys_open fs/open.c:1443 [inline]
__do_sys_openat fs/open.c:1459 [inline]
__se_sys_openat fs/open.c:1454 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1454
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x7e/0x180 arch/x86/entry/common.c:83
Memory state around the buggy address:
ffff88803372eb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88803372eb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88803372ec00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88803372ec80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88803372ed00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.10.19' (ED25519) to the list of known hosts.
2025/02/15 01:25:23 ignoring optional flag "sandboxArg"="0"
2025/02/15 01:25:24 parsed 1 programs
[ 80.195257][ T5769] cgroup: Unknown subsys name 'net'
[ 80.348491][ T5769] cgroup: Unknown subsys name 'cpuset'
[ 80.356990][ T5769] cgroup: Unknown subsys name 'rlimit'
[ 80.362617][ T5769] cgroup: Unknown subsys name 'memory'
[ 81.843728][ T5769] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 85.139832][ T5782] ==================================================================
[ 85.147940][ T5782] BUG: KASAN: slab-use-after-free in binder_add_device+0x5b/0xa0
[ 85.155706][ T5782] Write of size 8 at addr ffff88803372ec08 by task syz-executor/5782
[ 85.163790][ T5782]
[ 85.166134][ T5782] CPU: 0 UID: 0 PID: 5782 Comm: syz-executor Not tainted 6.14.0-rc2-syzkaller-00253-g78a632a2086c #0
[ 85.166151][ T5782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 85.166164][ T5782] Call Trace:
[ 85.166172][ T5782]
[ 85.166178][ T5782] dump_stack_lvl+0x23d/0x360
[ 85.166205][ T5782] ? __pfx_dump_stack_lvl+0x10/0x10
[ 85.166225][ T5782] ? __pfx__printk+0x10/0x10
[ 85.166246][ T5782] ? _printk+0xd1/0x120
[ 85.166265][ T5782] ? __virt_addr_valid+0x17f/0x530
[ 85.166280][ T5782] ? __virt_addr_valid+0x17f/0x530
[ 85.166296][ T5782] print_report+0x165/0x540
[ 85.166320][ T5782] ? __virt_addr_valid+0x17f/0x530
[ 85.166334][ T5782] ? __virt_addr_valid+0x17f/0x530
[ 85.166348][ T5782] ? __virt_addr_valid+0x45b/0x530
[ 85.166363][ T5782] ? __phys_addr+0xb6/0x170
[ 85.166377][ T5782] ? binder_add_device+0x5b/0xa0
[ 85.166392][ T5782] kasan_report+0x13f/0x180
[ 85.166416][ T5782] ? binder_add_device+0x5b/0xa0
[ 85.166433][ T5782] binder_add_device+0x5b/0xa0
[ 85.166448][ T5782] binderfs_binder_device_create+0x7bf/0x9c0
[ 85.166476][ T5782] binderfs_fill_super+0x940/0xd90
[ 85.166503][ T5782] ? __pfx_binderfs_fill_super+0x10/0x10
[ 85.166534][ T5782] ? shrinker_register+0x15c/0x220
[ 85.166555][ T5782] ? sget_fc+0x905/0x9c0
[ 85.166578][ T5782] ? __pfx_set_anon_super_fc+0x10/0x10
[ 85.166592][ T5782] ? __pfx_binderfs_fill_super+0x10/0x10
[ 85.166616][ T5782] get_tree_nodev+0xb3/0x140
[ 85.166631][ T5782] vfs_get_tree+0x8c/0x280
[ 85.166647][ T5782] do_new_mount+0x2ba/0xb40
[ 85.166667][ T5782] ? __pfx_do_new_mount+0x10/0x10
[ 85.166693][ T5782] __se_sys_mount+0x2d2/0x3c0
[ 85.166712][ T5782] ? lockdep_hardirqs_on_prepare+0x439/0x7a0
[ 85.166736][ T5782] ? __pfx___se_sys_mount+0x10/0x10
[ 85.166757][ T5782] ? __x64_sys_mount+0x1c/0xc0
[ 85.166776][ T5782] do_syscall_64+0x7e/0x180
[ 85.166797][ T5782] ? clear_bhb_loop+0x45/0xa0
[ 85.166819][ T5782] ? clear_bhb_loop+0x45/0xa0
[ 85.166841][ T5782] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 85.166867][ T5782] RIP: 0033:0x7efe2a58e54a
[ 85.166883][ T5782] 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
[ 85.166895][ T5782] RSP: 002b:00007ffffa5d98c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 85.166915][ T5782] RAX: ffffffffffffffda RBX: 00007efe2a60e663 RCX: 00007efe2a58e54a
[ 85.166926][ T5782] RDX: 00007efe2a61dda7 RSI: 00007efe2a60e663 RDI: 00007efe2a61dda7
[ 85.166937][ T5782] RBP: 00007efe2a60e8ac R08: 0000000000000000 R09: 00000000000001ff
[ 85.166946][ T5782] R10: 0000000000000000 R11: 0000000000000246 R12: 00007efe2a5eb1a8
[ 85.166955][ T5782] R13: 00007efe2a5eb180 R14: 0000000000000009 R15: 0000000000000000
[ 85.166969][ T5782]
[ 85.166975][ T5782]
[ 85.440418][ T5782] Allocated by task 5776:
[ 85.444746][ T5782] kasan_save_track+0x3b/0x70
[ 85.449435][ T5782] __kasan_kmalloc+0x94/0xb0
[ 85.454052][ T5782] __kmalloc_cache_noprof+0x237/0x370
[ 85.459428][ T5782] binderfs_binder_device_create+0x16c/0x9c0
[ 85.466288][ T5782] binderfs_fill_super+0x940/0xd90
[ 85.471599][ T5782] get_tree_nodev+0xb3/0x140
[ 85.476302][ T5782] vfs_get_tree+0x8c/0x280
[ 85.480737][ T5782] do_new_mount+0x2ba/0xb40
[ 85.485251][ T5782] __se_sys_mount+0x2d2/0x3c0
[ 85.489960][ T5782] do_syscall_64+0x7e/0x180
[ 85.494477][ T5782] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 85.500378][ T5782]
[ 85.502737][ T5782] Freed by task 5776:
[ 85.506716][ T5782] kasan_save_track+0x3b/0x70
[ 85.511407][ T5782] kasan_save_free_info+0x3c/0x50
[ 85.516438][ T5782] __kasan_slab_free+0x55/0x70
[ 85.521214][ T5782] kfree+0x18e/0x410
[ 85.525131][ T5782] evict+0x4e4/0x990
[ 85.529032][ T5782] __dentry_kill+0x200/0x610
[ 85.533631][ T5782] shrink_kill+0xa9/0x2c0
[ 85.537986][ T5782] shrink_dentry_list+0x2bc/0x5b0
[ 85.543018][ T5782] shrink_dcache_parent+0xc7/0x3b0
[ 85.548142][ T5782] do_one_tree+0x23/0xe0
[ 85.552393][ T5782] shrink_dcache_for_umount+0xb0/0x170
[ 85.557868][ T5782] generic_shutdown_super+0x66/0x2d0
[ 85.563166][ T5782] kill_litter_super+0x72/0xa0
[ 85.567930][ T5782] binderfs_kill_super+0x40/0x90
[ 85.572888][ T5782] deactivate_locked_super+0xc0/0x120
[ 85.578276][ T5782] cleanup_mnt+0x41f/0x4b0
[ 85.582725][ T5782] task_work_run+0x24b/0x310
[ 85.587493][ T5782] do_exit+0xa26/0x28d0
[ 85.591694][ T5782] do_group_exit+0x203/0x2b0
[ 85.596298][ T5782] get_signal+0x16ae/0x1740
[ 85.600810][ T5782] arch_do_signal_or_restart+0x92/0x860
[ 85.606665][ T5782] syscall_exit_to_user_mode+0xc9/0x320
[ 85.612315][ T5782] do_syscall_64+0x8a/0x180
[ 85.616830][ T5782] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 85.622742][ T5782]
[ 85.625067][ T5782] The buggy address belongs to the object at ffff88803372ec00
[ 85.625067][ T5782] which belongs to the cache kmalloc-512 of size 512
[ 85.639385][ T5782] The buggy address is located 8 bytes inside of
[ 85.639385][ T5782] freed 512-byte region [ffff88803372ec00, ffff88803372ee00)
[ 85.653011][ T5782]
[ 85.655513][ T5782] The buggy address belongs to the physical page:
[ 85.662023][ T5782] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3372c
[ 85.670794][ T5782] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 85.679295][ T5782] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 85.686868][ T5782] page_type: f5(slab)
[ 85.690858][ T5782] raw: 00fff00000000040 ffff88801a441c80 ffffea0000a2b600 dead000000000002
[ 85.699568][ T5782] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 85.708167][ T5782] head: 00fff00000000040 ffff88801a441c80 ffffea0000a2b600 dead000000000002
[ 85.716844][ T5782] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 85.725522][ T5782] head: 00fff00000000002 ffffea0000cdcb01 ffffffffffffffff 0000000000000000
[ 85.734203][ T5782] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 85.742875][ T5782] page dumped because: kasan: bad access detected
[ 85.749299][ T5782] page_owner tracks the page as allocated
[ 85.755034][ T5782] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5143, tgid 5143 (udevd), ts 34062507745, free_ts 34012008209
[ 85.775808][ T5782] post_alloc_hook+0x1e0/0x220
[ 85.780605][ T5782] get_page_from_freelist+0x35e2/0x3720
[ 85.786174][ T5782] __alloc_frozen_pages_noprof+0x252/0x680
[ 85.791993][ T5782] alloc_pages_mpol+0x30d/0x660
[ 85.796848][ T5782] allocate_slab+0x8f/0x390
[ 85.801363][ T5782] ___slab_alloc+0xc35/0x1490
[ 85.806049][ T5782] __slab_alloc+0x58/0xa0
[ 85.810558][ T5782] __kmalloc_cache_noprof+0x26f/0x370
[ 85.816131][ T5782] kernfs_fop_open+0x3dc/0xd00
[ 85.820905][ T5782] do_dentry_open+0xdea/0x1960
[ 85.825684][ T5782] vfs_open+0x37/0x360
[ 85.829770][ T5782] path_openat+0x2c79/0x3580
[ 85.834675][ T5782] do_filp_open+0x27b/0x4d0
[ 85.839195][ T5782] do_sys_openat2+0x13a/0x1d0
[ 85.843889][ T5782] __x64_sys_openat+0x243/0x290
[ 85.848751][ T5782] do_syscall_64+0x7e/0x180
[ 85.853281][ T5782] page last free pid 5148 tgid 5148 stack trace:
[ 85.859620][ T5782] free_frozen_pages+0xddf/0x10a0
[ 85.864669][ T5782] __slab_free+0x2be/0x370
[ 85.869119][ T5782] qlist_free_all+0x9a/0x130
[ 85.873821][ T5782] kasan_quarantine_reduce+0x14b/0x160
[ 85.879392][ T5782] __kasan_slab_alloc+0x1f/0x70
[ 85.884264][ T5782] kmem_cache_alloc_lru_noprof+0x1d5/0x360
[ 85.890082][ T5782] shmem_alloc_inode+0x24/0x40
[ 85.894925][ T5782] alloc_inode+0x65/0x1a0
[ 85.899266][ T5782] new_inode+0x1e/0x1d0
[ 85.903432][ T5782] shmem_get_inode+0x320/0xda0
[ 85.908220][ T5782] shmem_mknod+0x18d/0x3c0
[ 85.912651][ T5782] path_openat+0x1938/0x3580
[ 85.917258][ T5782] do_filp_open+0x27b/0x4d0
[ 85.921772][ T5782] do_sys_openat2+0x13a/0x1d0
[ 85.926503][ T5782] __x64_sys_openat+0x243/0x290
[ 85.931366][ T5782] do_syscall_64+0x7e/0x180
[ 85.935881][ T5782]
[ 85.938212][ T5782] Memory state around the buggy address:
[ 85.943847][ T5782] ffff88803372eb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 85.951908][ T5782] ffff88803372eb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 85.959974][ T5782] >ffff88803372ec00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 85.968042][ T5782] ^
[ 85.972369][ T5782] ffff88803372ec80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 85.980478][ T5782] ffff88803372ed00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 85.988734][ T5782] ==================================================================
[ 86.000657][ T5782] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 86.007918][ T5782] CPU: 0 UID: 0 PID: 5782 Comm: syz-executor Not tainted 6.14.0-rc2-syzkaller-00253-g78a632a2086c #0
[ 86.018813][ T5782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 86.029036][ T5782] Call Trace:
[ 86.032343][ T5782]
[ 86.035313][ T5782] dump_stack_lvl+0x23d/0x360
[ 86.040040][ T5782] ? __pfx_dump_stack_lvl+0x10/0x10
[ 86.045364][ T5782] ? __pfx__printk+0x10/0x10
[ 86.049974][ T5782] ? preempt_schedule+0xdd/0xf0
[ 86.054840][ T5782] ? vscnprintf+0x59/0x80
[ 86.059185][ T5782] panic+0x345/0x880
[ 86.063092][ T5782] ? asm_sysvec_apic_timer_interrupt+0x16/0x20
[ 86.069264][ T5782] ? check_panic_on_warn+0x1d/0xa0
[ 86.074405][ T5782] ? __pfx_panic+0x10/0x10
[ 86.078840][ T5782] ? _raw_spin_unlock_irqrestore+0x12c/0x140
[ 86.084828][ T5782] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 86.091162][ T5782] ? print_report+0x4fe/0x540
[ 86.095855][ T5782] check_panic_on_warn+0x82/0xa0
[ 86.100815][ T5782] ? binder_add_device+0x5b/0xa0
[ 86.105761][ T5782] end_report+0x77/0x150
[ 86.110025][ T5782] kasan_report+0x150/0x180
[ 86.114547][ T5782] ? binder_add_device+0x5b/0xa0
[ 86.119492][ T5782] binder_add_device+0x5b/0xa0
[ 86.124260][ T5782] binderfs_binder_device_create+0x7bf/0x9c0
[ 86.130272][ T5782] binderfs_fill_super+0x940/0xd90
[ 86.135500][ T5782] ? __pfx_binderfs_fill_super+0x10/0x10
[ 86.141158][ T5782] ? shrinker_register+0x15c/0x220
[ 86.146286][ T5782] ? sget_fc+0x905/0x9c0
[ 86.150545][ T5782] ? __pfx_set_anon_super_fc+0x10/0x10
[ 86.156040][ T5782] ? __pfx_binderfs_fill_super+0x10/0x10
[ 86.161689][ T5782] get_tree_nodev+0xb3/0x140
[ 86.166295][ T5782] vfs_get_tree+0x8c/0x280
[ 86.170727][ T5782] do_new_mount+0x2ba/0xb40
[ 86.175306][ T5782] ? __pfx_do_new_mount+0x10/0x10
[ 86.180348][ T5782] __se_sys_mount+0x2d2/0x3c0
[ 86.185035][ T5782] ? lockdep_hardirqs_on_prepare+0x439/0x7a0
[ 86.191052][ T5782] ? __pfx___se_sys_mount+0x10/0x10
[ 86.196268][ T5782] ? __x64_sys_mount+0x1c/0xc0
[ 86.201047][ T5782] do_syscall_64+0x7e/0x180
[ 86.205652][ T5782] ? clear_bhb_loop+0x45/0xa0
[ 86.210345][ T5782] ? clear_bhb_loop+0x45/0xa0
[ 86.215035][ T5782] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 86.220937][ T5782] RIP: 0033:0x7efe2a58e54a
[ 86.225357][ T5782] 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
[ 86.245236][ T5782] RSP: 002b:00007ffffa5d98c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 86.253671][ T5782] RAX: ffffffffffffffda RBX: 00007efe2a60e663 RCX: 00007efe2a58e54a
[ 86.261658][ T5782] RDX: 00007efe2a61dda7 RSI: 00007efe2a60e663 RDI: 00007efe2a61dda7
[ 86.269651][ T5782] RBP: 00007efe2a60e8ac R08: 0000000000000000 R09: 00000000000001ff
[ 86.277684][ T5782] R10: 0000000000000000 R11: 0000000000000246 R12: 00007efe2a5eb1a8
[ 86.285675][ T5782] R13: 00007efe2a5eb180 R14: 0000000000000009 R15: 0000000000000000
[ 86.293696][ T5782]
[ 86.297054][ T5782] Kernel Offset: disabled
[ 86.301386][ T5782] 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-build2969146164=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at 4c6ac32f33
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=4c6ac32f33aa00c680c8f4656d1fbf2887f390f1 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250130-130318'" -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=\"4c6ac32f33aa00c680c8f4656d1fbf2887f390f1\"
/usr/bin/ld: /tmp/ccUchSBv.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