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 ffff8880240b5c08 by task syz-executor/5712
CPU: 1 UID: 0 PID: 5712 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: 0033:0x7f58dab8e54a
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:00007ffc12288328 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f58dac0e663 RCX: 00007f58dab8e54a
RDX: 00007f58dac1dda7 RSI: 00007f58dac0e663 RDI: 00007f58dac1dda7
RBP: 00007f58dac0e8ac R08: 0000000000000000 R09: 00000000000001ff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f58dabeb1a8
R13: 00007f58dabeb180 R14: 0000000000000009 R15: 0000000000000000
Allocated by task 5708:
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 5708:
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
__do_sys_exit_group kernel/exit.c:1098 [inline]
__se_sys_exit_group kernel/exit.c:1096 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1096
x64_sys_call+0x26a8/0x26b0 arch/x86/include/generated/asm/syscalls_64.h:232
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
The buggy address belongs to the object at ffff8880240b5c00
which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
freed 512-byte region [ffff8880240b5c00, ffff8880240b5e00)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x240b4
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 ffffea0000902d01 ffffffffffffffff 0000000000000000
head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 9080559312, free_ts 0
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_node_noprof+0x28f/0x370 mm/slub.c:4333
kmalloc_node_noprof include/linux/slab.h:924 [inline]
blkg_alloc+0xd6/0x810 block/blk-cgroup.c:311
blkcg_init_disk+0x55/0x120 block/blk-cgroup.c:1467
__alloc_disk_node+0x2d2/0x580 block/genhd.c:1408
__blk_alloc_disk+0xd3/0x170 block/genhd.c:1450
brd_alloc+0x438/0x790 drivers/block/brd.c:388
brd_init+0x126/0x1b0 drivers/block/brd.c:481
do_one_initcall+0x248/0x850 init/main.c:1257
do_initcall_level+0x157/0x210 init/main.c:1319
page_owner free stack trace missing
Memory state around the buggy address:
ffff8880240b5b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8880240b5b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880240b5c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880240b5c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880240b5d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Warning: Permanently added '10.128.1.178' (ED25519) to the list of known hosts.
2025/02/03 13:00:44 ignoring optional flag "sandboxArg"="0"
2025/02/03 13:00:46 parsed 1 programs
[ 72.818936][ T5701] cgroup: Unknown subsys name 'net'
[ 72.929040][ T5701] cgroup: Unknown subsys name 'cpuset'
[ 72.937605][ T5701] cgroup: Unknown subsys name 'rlimit'
[ 72.943230][ T5701] cgroup: Unknown subsys name 'memory'
[ 74.406865][ T5701] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 76.997461][ T5712] ==================================================================
[ 77.005617][ T5712] BUG: KASAN: slab-use-after-free in binder_add_device+0x5f/0xa0
[ 77.013392][ T5712] Write of size 8 at addr ffff8880240b5c08 by task syz-executor/5712
[ 77.021458][ T5712]
[ 77.023802][ T5712] CPU: 1 UID: 0 PID: 5712 Comm: syz-executor Not tainted 6.14.0-rc1-syzkaller #0
[ 77.023819][ T5712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 77.023834][ T5712] Call Trace:
[ 77.023841][ T5712]
[ 77.023847][ T5712] dump_stack_lvl+0x241/0x360
[ 77.023868][ T5712] ? __pfx_dump_stack_lvl+0x10/0x10
[ 77.023884][ T5712] ? __pfx__printk+0x10/0x10
[ 77.023900][ T5712] ? _printk+0xd5/0x120
[ 77.023914][ T5712] ? __virt_addr_valid+0x183/0x530
[ 77.023932][ T5712] ? __virt_addr_valid+0x183/0x530
[ 77.023951][ T5712] print_report+0x169/0x550
[ 77.023972][ T5712] ? __virt_addr_valid+0x183/0x530
[ 77.023988][ T5712] ? __virt_addr_valid+0x183/0x530
[ 77.024005][ T5712] ? __virt_addr_valid+0x45f/0x530
[ 77.024022][ T5712] ? __phys_addr+0xba/0x170
[ 77.024039][ T5712] ? binder_add_device+0x5f/0xa0
[ 77.024053][ T5712] kasan_report+0x143/0x180
[ 77.024074][ T5712] ? binder_add_device+0x5f/0xa0
[ 77.024089][ T5712] binder_add_device+0x5f/0xa0
[ 77.024103][ T5712] binderfs_binder_device_create+0x7bf/0x9c0
[ 77.024130][ T5712] binderfs_fill_super+0x944/0xd90
[ 77.024155][ T5712] ? __pfx_binderfs_fill_super+0x10/0x10
[ 77.024185][ T5712] ? shrinker_register+0x160/0x230
[ 77.024204][ T5712] ? sget_fc+0x909/0x9c0
[ 77.024227][ T5712] ? __pfx_set_anon_super_fc+0x10/0x10
[ 77.024241][ T5712] ? __pfx_binderfs_fill_super+0x10/0x10
[ 77.024263][ T5712] get_tree_nodev+0xb7/0x140
[ 77.024278][ T5712] vfs_get_tree+0x90/0x290
[ 77.024294][ T5712] do_new_mount+0x2be/0xb40
[ 77.024313][ T5712] ? __pfx_do_new_mount+0x10/0x10
[ 77.024333][ T5712] __se_sys_mount+0x2d6/0x3c0
[ 77.024351][ T5712] ? lockdep_hardirqs_on_prepare+0x43d/0x7a0
[ 77.024371][ T5712] ? __pfx___se_sys_mount+0x10/0x10
[ 77.024397][ T5712] ? __x64_sys_mount+0x20/0xc0
[ 77.024415][ T5712] do_syscall_64+0x82/0x160
[ 77.024437][ T5712] ? clear_bhb_loop+0x25/0x80
[ 77.024458][ T5712] ? clear_bhb_loop+0x25/0x80
[ 77.024479][ T5712] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 77.024502][ T5712] RIP: 0033:0x7f58dab8e54a
[ 77.024519][ T5712] 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
[ 77.024531][ T5712] RSP: 002b:00007ffc12288328 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 77.024547][ T5712] RAX: ffffffffffffffda RBX: 00007f58dac0e663 RCX: 00007f58dab8e54a
[ 77.024558][ T5712] RDX: 00007f58dac1dda7 RSI: 00007f58dac0e663 RDI: 00007f58dac1dda7
[ 77.024568][ T5712] RBP: 00007f58dac0e8ac R08: 0000000000000000 R09: 00000000000001ff
[ 77.024577][ T5712] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f58dabeb1a8
[ 77.024587][ T5712] R13: 00007f58dabeb180 R14: 0000000000000009 R15: 0000000000000000
[ 77.024601][ T5712]
[ 77.024606][ T5712]
[ 77.296026][ T5712] Allocated by task 5708:
[ 77.300349][ T5712] kasan_save_track+0x3f/0x80
[ 77.305027][ T5712] __kasan_kmalloc+0x7d/0x90
[ 77.309633][ T5712] __kmalloc_cache_noprof+0x23e/0x360
[ 77.315007][ T5712] binderfs_binder_device_create+0x16c/0x9c0
[ 77.320995][ T5712] binderfs_fill_super+0x944/0xd90
[ 77.326113][ T5712] get_tree_nodev+0xb7/0x140
[ 77.330719][ T5712] vfs_get_tree+0x90/0x290
[ 77.335140][ T5712] do_new_mount+0x2be/0xb40
[ 77.339650][ T5712] __se_sys_mount+0x2d6/0x3c0
[ 77.344323][ T5712] do_syscall_64+0x82/0x160
[ 77.348866][ T5712] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 77.354768][ T5712]
[ 77.357085][ T5712] Freed by task 5708:
[ 77.361055][ T5712] kasan_save_track+0x3f/0x80
[ 77.365753][ T5712] kasan_save_free_info+0x40/0x50
[ 77.370787][ T5712] __kasan_slab_free+0x36/0x50
[ 77.375549][ T5712] kfree+0x181/0x430
[ 77.379459][ T5712] evict+0x4e8/0x9a0
[ 77.383362][ T5712] __dentry_kill+0x200/0x610
[ 77.387951][ T5712] shrink_kill+0xa9/0x2c0
[ 77.392278][ T5712] shrink_dentry_list+0x2c0/0x5b0
[ 77.397343][ T5712] shrink_dcache_parent+0xcb/0x3b0
[ 77.402494][ T5712] do_one_tree+0x23/0xe0
[ 77.406749][ T5712] shrink_dcache_for_umount+0xb4/0x180
[ 77.412232][ T5712] generic_shutdown_super+0x6a/0x2d0
[ 77.417534][ T5712] kill_litter_super+0x76/0xb0
[ 77.422314][ T5712] binderfs_kill_super+0x44/0x90
[ 77.427259][ T5712] deactivate_locked_super+0xc4/0x120
[ 77.432643][ T5712] cleanup_mnt+0x41f/0x4b0
[ 77.437063][ T5712] task_work_run+0x24f/0x310
[ 77.441664][ T5712] do_exit+0xa2a/0x28d0
[ 77.445828][ T5712] do_group_exit+0x207/0x2c0
[ 77.450421][ T5712] __x64_sys_exit_group+0x3f/0x40
[ 77.455455][ T5712] x64_sys_call+0x26a8/0x26b0
[ 77.460129][ T5712] do_syscall_64+0x82/0x160
[ 77.464635][ T5712] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 77.470548][ T5712]
[ 77.472886][ T5712] The buggy address belongs to the object at ffff8880240b5c00
[ 77.472886][ T5712] which belongs to the cache kmalloc-512 of size 512
[ 77.486932][ T5712] The buggy address is located 8 bytes inside of
[ 77.486932][ T5712] freed 512-byte region [ffff8880240b5c00, ffff8880240b5e00)
[ 77.500548][ T5712]
[ 77.502866][ T5712] The buggy address belongs to the physical page:
[ 77.509275][ T5712] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x240b4
[ 77.518028][ T5712] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 77.526531][ T5712] anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[ 77.534522][ T5712] page_type: f5(slab)
[ 77.538503][ T5712] raw: 00fff00000000040 ffff88801a041c80 0000000000000000 dead000000000001
[ 77.547088][ T5712] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 77.555673][ T5712] head: 00fff00000000040 ffff88801a041c80 0000000000000000 dead000000000001
[ 77.564347][ T5712] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[ 77.573042][ T5712] head: 00fff00000000002 ffffea0000902d01 ffffffffffffffff 0000000000000000
[ 77.581797][ T5712] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 77.590469][ T5712] page dumped because: kasan: bad access detected
[ 77.596891][ T5712] page_owner tracks the page as allocated
[ 77.602624][ T5712] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 9080559312, free_ts 0
[ 77.622270][ T5712] post_alloc_hook+0x1ec/0x220
[ 77.627045][ T5712] get_page_from_freelist+0x3607/0x3750
[ 77.632694][ T5712] __alloc_frozen_pages_noprof+0x256/0x690
[ 77.638521][ T5712] alloc_pages_mpol+0x311/0x660
[ 77.643392][ T5712] allocate_slab+0x8f/0x3a0
[ 77.647896][ T5712] ___slab_alloc+0xc35/0x14a0
[ 77.652585][ T5712] __slab_alloc+0x58/0xa0
[ 77.656948][ T5712] __kmalloc_cache_node_noprof+0x28f/0x370
[ 77.662759][ T5712] blkg_alloc+0xd6/0x810
[ 77.667002][ T5712] blkcg_init_disk+0x55/0x120
[ 77.671881][ T5712] __alloc_disk_node+0x2d2/0x580
[ 77.676823][ T5712] __blk_alloc_disk+0xd3/0x170
[ 77.681589][ T5712] brd_alloc+0x438/0x790
[ 77.685829][ T5712] brd_init+0x126/0x1b0
[ 77.689982][ T5712] do_one_initcall+0x248/0x850
[ 77.694821][ T5712] do_initcall_level+0x157/0x210
[ 77.699875][ T5712] page_owner free stack trace missing
[ 77.705287][ T5712]
[ 77.707624][ T5712] Memory state around the buggy address:
[ 77.713274][ T5712] ffff8880240b5b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 77.721350][ T5712] ffff8880240b5b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 77.729417][ T5712] >ffff8880240b5c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 77.737477][ T5712] ^
[ 77.741828][ T5712] ffff8880240b5c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 77.749996][ T5712] ffff8880240b5d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 77.758051][ T5712] ==================================================================
[ 77.767173][ T5712] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 77.774415][ T5712] CPU: 1 UID: 0 PID: 5712 Comm: syz-executor Not tainted 6.14.0-rc1-syzkaller #0
[ 77.783555][ T5712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[ 77.793806][ T5712] Call Trace:
[ 77.797086][ T5712]
[ 77.800030][ T5712] dump_stack_lvl+0x241/0x360
[ 77.804706][ T5712] ? __pfx_dump_stack_lvl+0x10/0x10
[ 77.809901][ T5712] ? __pfx__printk+0x10/0x10
[ 77.814503][ T5712] ? preempt_schedule+0xe1/0xf0
[ 77.819352][ T5712] ? vscnprintf+0x5d/0x90
[ 77.823692][ T5712] panic+0x349/0x880
[ 77.827587][ T5712] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 77.833745][ T5712] ? check_panic_on_warn+0x21/0xb0
[ 77.838862][ T5712] ? __pfx_panic+0x10/0x10
[ 77.843294][ T5712] ? _raw_spin_unlock_irqrestore+0x130/0x140
[ 77.849304][ T5712] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 77.855645][ T5712] ? print_report+0x502/0x550
[ 77.860340][ T5712] check_panic_on_warn+0x86/0xb0
[ 77.865302][ T5712] ? binder_add_device+0x5f/0xa0
[ 77.870271][ T5712] end_report+0x77/0x150
[ 77.874525][ T5712] kasan_report+0x154/0x180
[ 77.879048][ T5712] ? binder_add_device+0x5f/0xa0
[ 77.884006][ T5712] binder_add_device+0x5f/0xa0
[ 77.888769][ T5712] binderfs_binder_device_create+0x7bf/0x9c0
[ 77.894771][ T5712] binderfs_fill_super+0x944/0xd90
[ 77.899887][ T5712] ? __pfx_binderfs_fill_super+0x10/0x10
[ 77.905532][ T5712] ? shrinker_register+0x160/0x230
[ 77.910658][ T5712] ? sget_fc+0x909/0x9c0
[ 77.914902][ T5712] ? __pfx_set_anon_super_fc+0x10/0x10
[ 77.920383][ T5712] ? __pfx_binderfs_fill_super+0x10/0x10
[ 77.926024][ T5712] get_tree_nodev+0xb7/0x140
[ 77.930651][ T5712] vfs_get_tree+0x90/0x290
[ 77.935066][ T5712] do_new_mount+0x2be/0xb40
[ 77.939584][ T5712] ? __pfx_do_new_mount+0x10/0x10
[ 77.944797][ T5712] __se_sys_mount+0x2d6/0x3c0
[ 77.949489][ T5712] ? lockdep_hardirqs_on_prepare+0x43d/0x7a0
[ 77.955483][ T5712] ? __pfx___se_sys_mount+0x10/0x10
[ 77.960698][ T5712] ? __x64_sys_mount+0x20/0xc0
[ 77.965496][ T5712] do_syscall_64+0x82/0x160
[ 77.970212][ T5712] ? clear_bhb_loop+0x25/0x80
[ 77.975013][ T5712] ? clear_bhb_loop+0x25/0x80
[ 77.979733][ T5712] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 77.985654][ T5712] RIP: 0033:0x7f58dab8e54a
[ 77.990079][ T5712] 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
[ 78.009787][ T5712] RSP: 002b:00007ffc12288328 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 78.018222][ T5712] RAX: ffffffffffffffda RBX: 00007f58dac0e663 RCX: 00007f58dab8e54a
[ 78.026191][ T5712] RDX: 00007f58dac1dda7 RSI: 00007f58dac0e663 RDI: 00007f58dac1dda7
[ 78.034158][ T5712] RBP: 00007f58dac0e8ac R08: 0000000000000000 R09: 00000000000001ff
[ 78.042148][ T5712] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f58dabeb1a8
[ 78.050153][ T5712] R13: 00007f58dabeb180 R14: 0000000000000009 R15: 0000000000000000
[ 78.058229][ T5712]
[ 78.061656][ T5712] Kernel Offset: disabled
[ 78.065988][ T5712] 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-build902051911=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at 568559e4e6
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=568559e4e604140cecd9fc4835eaa0298a1cadcc -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250201-125757'" -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=\"568559e4e604140cecd9fc4835eaa0298a1cadcc\"
/usr/bin/ld: /tmp/cc3K9AOq.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