KASAN: slab-use-after-free Read in hci_cmd_work
Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
==================================================================
BUG: KASAN: slab-use-after-free in hci_cmd_work+0x5d0/0x7b0 net/bluetooth/hci_core.c:4174
Read of size 2 at addr ffff88807640d8f8 by task kworker/u9:1/5147
CPU: 0 UID: 0 PID: 5147 Comm: kworker/u9:1 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: hci0 hci_cmd_work
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xca/0x240 mm/kasan/report.c:482
kasan_report+0x118/0x150 mm/kasan/report.c:595
hci_cmd_work+0x5d0/0x7b0 net/bluetooth/hci_core.c:4174
process_one_work+0x93a/0x15e0 kernel/workqueue.c:3261
process_scheduled_works kernel/workqueue.c:3344 [inline]
worker_thread+0x9b0/0xee0 kernel/workqueue.c:3425
kthread+0x711/0x8a0 kernel/kthread.c:463
ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
Allocated by task 52:
kasan_save_stack mm/kasan/common.c:56 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:77
unpoison_slab_object mm/kasan/common.c:339 [inline]
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:365
kasan_slab_alloc include/linux/kasan.h:252 [inline]
slab_post_alloc_hook mm/slub.c:4948 [inline]
slab_alloc_node mm/slub.c:5258 [inline]
kmem_cache_alloc_node_noprof+0x43c/0x710 mm/slub.c:5310
__alloc_skb+0x112/0x2d0 net/core/skbuff.c:664
alloc_skb include/linux/skbuff.h:1383 [inline]
bt_skb_alloc include/net/bluetooth/bluetooth.h:510 [inline]
hci_cmd_sync_alloc+0x3d/0x3b0 net/bluetooth/hci_sync.c:58
hci_cmd_sync_add net/bluetooth/hci_sync.c:99 [inline]
__hci_cmd_sync_sk+0x1a7/0xc70 net/bluetooth/hci_sync.c:168
__hci_cmd_sync_status_sk net/bluetooth/hci_sync.c:263 [inline]
__hci_cmd_sync_status net/bluetooth/hci_sync.c:287 [inline]
hci_read_current_iac_lap_sync+0x2c/0x120 net/bluetooth/hci_sync.c:3799
hci_init_stage_sync net/bluetooth/hci_sync.c:3623 [inline]
hci_init2_sync net/bluetooth/hci_sync.c:4047 [inline]
hci_init_sync net/bluetooth/hci_sync.c:4881 [inline]
hci_dev_init_sync net/bluetooth/hci_sync.c:5066 [inline]
hci_dev_open_sync+0x24ad/0x2dc0 net/bluetooth/hci_sync.c:5144
hci_dev_do_open net/bluetooth/hci_core.c:430 [inline]
hci_power_on+0x1b4/0x720 net/bluetooth/hci_core.c:959
process_one_work+0x93a/0x15e0 kernel/workqueue.c:3261
process_scheduled_works kernel/workqueue.c:3344 [inline]
worker_thread+0x9b0/0xee0 kernel/workqueue.c:3425
kthread+0x711/0x8a0 kernel/kthread.c:463
ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
Freed by task 5839:
kasan_save_stack mm/kasan/common.c:56 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:77
kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584
poison_slab_object mm/kasan/common.c:252 [inline]
__kasan_slab_free+0x5c/0x80 mm/kasan/common.c:284
kasan_slab_free include/linux/kasan.h:234 [inline]
slab_free_hook mm/slub.c:2540 [inline]
slab_free mm/slub.c:6663 [inline]
kmem_cache_free+0x197/0x640 mm/slub.c:6774
kfree_skb_reason include/linux/skbuff.h:1322 [inline]
kfree_skb include/linux/skbuff.h:1331 [inline]
vhci_read+0x49a/0x5b0 drivers/bluetooth/hci_vhci.c:593
vfs_read+0x200/0xa30 fs/read_write.c:570
ksys_read+0x145/0x250 fs/read_write.c:715
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff88807640d8c0
which belongs to the cache skbuff_head_cache of size 240
The buggy address is located 56 bytes inside of
freed 240-byte region [ffff88807640d8c0, ffff88807640d9b0)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7640d
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801daf98c0 dead000000000122 0000000000000000
raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5147, tgid 5147 (kworker/u9:1), ts 87396138673, free_ts 87368798603
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1851
prep_new_page mm/page_alloc.c:1859 [inline]
get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3920
__alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5215
alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2486
alloc_slab_page mm/slub.c:3075 [inline]
allocate_slab+0x86/0x3b0 mm/slub.c:3248
new_slab mm/slub.c:3302 [inline]
___slab_alloc+0xf56/0x1990 mm/slub.c:4651
__slab_alloc+0x65/0x100 mm/slub.c:4774
__slab_alloc_node mm/slub.c:4850 [inline]
slab_alloc_node mm/slub.c:5246 [inline]
kmem_cache_alloc_noprof+0x40f/0x700 mm/slub.c:5265
skb_clone+0x212/0x3a0 net/core/skbuff.c:2069
hci_send_cmd_sync net/bluetooth/hci_core.c:4132 [inline]
hci_cmd_work+0xe2/0x7b0 net/bluetooth/hci_core.c:4169
process_one_work+0x93a/0x15e0 kernel/workqueue.c:3261
process_scheduled_works kernel/workqueue.c:3344 [inline]
worker_thread+0x9b0/0xee0 kernel/workqueue.c:3425
kthread+0x711/0x8a0 kernel/kthread.c:463
ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
page last free pid 2 tgid 2 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1395 [inline]
__free_frozen_pages+0xbc8/0xd30 mm/page_alloc.c:2948
___free_pages_bulk mm/kasan/shadow.c:333 [inline]
__kasan_populate_vmalloc_do mm/kasan/shadow.c:385 [inline]
__kasan_populate_vmalloc+0x137/0x1d0 mm/kasan/shadow.c:424
kasan_populate_vmalloc include/linux/kasan.h:579 [inline]
alloc_vmap_area+0xdca/0x1500 mm/vmalloc.c:2124
__get_vm_area_node+0x1f8/0x300 mm/vmalloc.c:3220
__vmalloc_node_range_noprof+0x365/0x1640 mm/vmalloc.c:3981
__vmalloc_node_noprof+0xc2/0x110 mm/vmalloc.c:4081
alloc_thread_stack_node kernel/fork.c:311 [inline]
dup_task_struct+0x3d4/0x830 kernel/fork.c:880
copy_process+0x4ea/0x3930 kernel/fork.c:2011
kernel_clone+0x21e/0x850 kernel/fork.c:2609
kernel_thread+0x10d/0x160 kernel/fork.c:2670
create_kthread kernel/kthread.c:486 [inline]
kthreadd+0x575/0x770 kernel/kthread.c:844
ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
Memory state around the buggy address:
ffff88807640d780: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88807640d800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc
>ffff88807640d880: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
^
ffff88807640d900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88807640d980: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc
==================================================================
Warning: Permanently added '10.128.1.96' (ED25519) to the list of known hosts.
2025/11/14 17:32:55 ignoring optional flag "type"="gce"
2025/11/14 17:32:55 parsed 1 programs
[ 85.327993][ T5827] cgroup: Unknown subsys name 'net'
[ 85.460910][ T5827] cgroup: Unknown subsys name 'cpuset'
[ 85.470264][ T5827] cgroup: Unknown subsys name 'rlimit'
2025/11/14 17:32:57 executed programs: 0
[ 87.301760][ T5827] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 87.371938][ T5147] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 87.380094][ T5147] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 87.388172][ T5147] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 87.396357][ T5147] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 87.404525][ T5147] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 87.411966][ T5147] ==================================================================
[ 87.420047][ T5147] BUG: KASAN: slab-use-after-free in hci_cmd_work+0x5d0/0x7b0
[ 87.427511][ T5147] Read of size 2 at addr ffff88807640d8f8 by task kworker/u9:1/5147
[ 87.435576][ T5147]
[ 87.437923][ T5147] CPU: 0 UID: 0 PID: 5147 Comm: kworker/u9:1 Not tainted syzkaller #0 PREEMPT(full)
[ 87.437939][ T5147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 87.437947][ T5147] Workqueue: hci0 hci_cmd_work
[ 87.437968][ T5147] Call Trace:
[ 87.437975][ T5147]
[ 87.437980][ T5147] dump_stack_lvl+0x189/0x250
[ 87.437998][ T5147] ? __virt_addr_valid+0x1c8/0x5c0
[ 87.438010][ T5147] ? rcu_is_watching+0x15/0xb0
[ 87.438020][ T5147] ? __pfx_dump_stack_lvl+0x10/0x10
[ 87.438036][ T5147] ? rcu_is_watching+0x15/0xb0
[ 87.438045][ T5147] ? lock_release+0x4b/0x3d0
[ 87.438059][ T5147] ? _raw_spin_lock_irqsave+0xb3/0xf0
[ 87.438071][ T5147] ? __virt_addr_valid+0x1c8/0x5c0
[ 87.438082][ T5147] ? __virt_addr_valid+0x4a5/0x5c0
[ 87.438093][ T5147] print_report+0xca/0x240
[ 87.438117][ T5147] ? hci_cmd_work+0x5d0/0x7b0
[ 87.438130][ T5147] kasan_report+0x118/0x150
[ 87.438144][ T5147] ? hci_cmd_work+0x5d0/0x7b0
[ 87.438159][ T5147] hci_cmd_work+0x5d0/0x7b0
[ 87.438173][ T5147] ? process_one_work+0x868/0x15e0
[ 87.438187][ T5147] process_one_work+0x93a/0x15e0
[ 87.438200][ T5147] ? __lock_acquire+0xab9/0xd20
[ 87.438218][ T5147] ? __pfx_process_one_work+0x10/0x10
[ 87.438233][ T5147] ? assign_work+0x3a1/0x410
[ 87.438248][ T5147] worker_thread+0x9b0/0xee0
[ 87.438268][ T5147] kthread+0x711/0x8a0
[ 87.438279][ T5147] ? __pfx_worker_thread+0x10/0x10
[ 87.438293][ T5147] ? __pfx_kthread+0x10/0x10
[ 87.438303][ T5147] ? _raw_spin_unlock_irq+0x23/0x50
[ 87.438314][ T5147] ? lockdep_hardirqs_on+0x9c/0x150
[ 87.438326][ T5147] ? __pfx_kthread+0x10/0x10
[ 87.438336][ T5147] ret_from_fork+0x599/0xb30
[ 87.438351][ T5147] ? __pfx_ret_from_fork+0x10/0x10
[ 87.438366][ T5147] ? __switch_to_asm+0x39/0x70
[ 87.438376][ T5147] ? __switch_to_asm+0x33/0x70
[ 87.438386][ T5147] ? __pfx_kthread+0x10/0x10
[ 87.438396][ T5147] ret_from_fork_asm+0x1a/0x30
[ 87.438411][ T5147]
[ 87.438415][ T5147]
[ 87.629491][ T5147] Allocated by task 52:
[ 87.633660][ T5147] kasan_save_track+0x3e/0x80
[ 87.638349][ T5147] __kasan_slab_alloc+0x6c/0x80
[ 87.643245][ T5147] kmem_cache_alloc_node_noprof+0x43c/0x710
[ 87.649234][ T5147] __alloc_skb+0x112/0x2d0
[ 87.653821][ T5147] hci_cmd_sync_alloc+0x3d/0x3b0
[ 87.658748][ T5147] __hci_cmd_sync_sk+0x1a7/0xc70
[ 87.663705][ T5147] hci_read_current_iac_lap_sync+0x2c/0x120
[ 87.669606][ T5147] hci_dev_open_sync+0x24ad/0x2dc0
[ 87.674809][ T5147] hci_power_on+0x1b4/0x720
[ 87.679316][ T5147] process_one_work+0x93a/0x15e0
[ 87.684252][ T5147] worker_thread+0x9b0/0xee0
[ 87.688883][ T5147] kthread+0x711/0x8a0
[ 87.693026][ T5147] ret_from_fork+0x599/0xb30
[ 87.697691][ T5147] ret_from_fork_asm+0x1a/0x30
[ 87.702443][ T5147]
[ 87.704789][ T5147] Freed by task 5839:
[ 87.708765][ T5147] kasan_save_track+0x3e/0x80
[ 87.713554][ T5147] kasan_save_free_info+0x46/0x50
[ 87.718583][ T5147] __kasan_slab_free+0x5c/0x80
[ 87.723342][ T5147] kmem_cache_free+0x197/0x640
[ 87.728092][ T5147] vhci_read+0x49a/0x5b0
[ 87.732343][ T5147] vfs_read+0x200/0xa30
[ 87.736656][ T5147] ksys_read+0x145/0x250
[ 87.740978][ T5147] do_syscall_64+0xfa/0xfa0
[ 87.745469][ T5147] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 87.751433][ T5147]
[ 87.753769][ T5147] The buggy address belongs to the object at ffff88807640d8c0
[ 87.753769][ T5147] which belongs to the cache skbuff_head_cache of size 240
[ 87.768515][ T5147] The buggy address is located 56 bytes inside of
[ 87.768515][ T5147] freed 240-byte region [ffff88807640d8c0, ffff88807640d9b0)
[ 87.782307][ T5147]
[ 87.784621][ T5147] The buggy address belongs to the physical page:
[ 87.791026][ T5147] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7640d
[ 87.799921][ T5147] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
[ 87.807079][ T5147] page_type: f5(slab)
[ 87.811057][ T5147] raw: 00fff00000000000 ffff88801daf98c0 dead000000000122 0000000000000000
[ 87.819626][ T5147] raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000
[ 87.828217][ T5147] page dumped because: kasan: bad access detected
[ 87.834715][ T5147] page_owner tracks the page as allocated
[ 87.840513][ T5147] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5147, tgid 5147 (kworker/u9:1), ts 87396138673, free_ts 87368798603
[ 87.860555][ T5147] post_alloc_hook+0x240/0x2a0
[ 87.865311][ T5147] get_page_from_freelist+0x2365/0x2440
[ 87.870944][ T5147] __alloc_frozen_pages_noprof+0x181/0x370
[ 87.876789][ T5147] alloc_pages_mpol+0x232/0x4a0
[ 87.881650][ T5147] allocate_slab+0x86/0x3b0
[ 87.886158][ T5147] ___slab_alloc+0xf56/0x1990
[ 87.890829][ T5147] __slab_alloc+0x65/0x100
[ 87.895235][ T5147] kmem_cache_alloc_noprof+0x40f/0x700
[ 87.900694][ T5147] skb_clone+0x212/0x3a0
[ 87.904921][ T5147] hci_cmd_work+0xe2/0x7b0
[ 87.909339][ T5147] process_one_work+0x93a/0x15e0
[ 87.914299][ T5147] worker_thread+0x9b0/0xee0
[ 87.918951][ T5147] kthread+0x711/0x8a0
[ 87.923128][ T5147] ret_from_fork+0x599/0xb30
[ 87.927994][ T5147] ret_from_fork_asm+0x1a/0x30
[ 87.932781][ T5147] page last free pid 2 tgid 2 stack trace:
[ 87.938602][ T5147] __free_frozen_pages+0xbc8/0xd30
[ 87.943722][ T5147] __kasan_populate_vmalloc+0x137/0x1d0
[ 87.949353][ T5147] alloc_vmap_area+0xdca/0x1500
[ 87.954726][ T5147] __get_vm_area_node+0x1f8/0x300
[ 87.959755][ T5147] __vmalloc_node_range_noprof+0x365/0x1640
[ 87.965641][ T5147] __vmalloc_node_noprof+0xc2/0x110
[ 87.970966][ T5147] dup_task_struct+0x3d4/0x830
[ 87.975749][ T5147] copy_process+0x4ea/0x3930
[ 87.980436][ T5147] kernel_clone+0x21e/0x850
[ 87.985056][ T5147] kernel_thread+0x10d/0x160
[ 87.989676][ T5147] kthreadd+0x575/0x770
[ 87.993916][ T5147] ret_from_fork+0x599/0xb30
[ 87.998594][ T5147] ret_from_fork_asm+0x1a/0x30
[ 88.003346][ T5147]
[ 88.005754][ T5147] Memory state around the buggy address:
[ 88.011410][ T5147] ffff88807640d780: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 88.019654][ T5147] ffff88807640d800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc
[ 88.027887][ T5147] >ffff88807640d880: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
[ 88.035933][ T5147] ^
[ 88.043894][ T5147] ffff88807640d900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 88.052044][ T5147] ffff88807640d980: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc
[ 88.060094][ T5147] ==================================================================
[ 88.068563][ T5147] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 88.075793][ T5147] CPU: 0 UID: 0 PID: 5147 Comm: kworker/u9:1 Not tainted syzkaller #0 PREEMPT(full)
[ 88.085526][ T5147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 88.095681][ T5147] Workqueue: hci0 hci_cmd_work
[ 88.100459][ T5147] Call Trace:
[ 88.103747][ T5147]
[ 88.106677][ T5147] dump_stack_lvl+0x99/0x250
[ 88.111278][ T5147] ? __asan_memcpy+0x40/0x70
[ 88.115868][ T5147] ? __pfx_dump_stack_lvl+0x10/0x10
[ 88.121075][ T5147] ? __pfx__printk+0x10/0x10
[ 88.125759][ T5147] vpanic+0x237/0x6d0
[ 88.129772][ T5147] ? __pfx_vpanic+0x10/0x10
[ 88.134283][ T5147] ? preempt_schedule+0xae/0xc0
[ 88.139223][ T5147] ? __pfx_preempt_schedule+0x10/0x10
[ 88.144599][ T5147] panic+0xb9/0xc0
[ 88.148315][ T5147] ? __pfx_panic+0x10/0x10
[ 88.152731][ T5147] ? _raw_spin_unlock_irqrestore+0xfd/0x110
[ 88.158627][ T5147] ? is_module_address+0x17/0xf0
[ 88.163575][ T5147] ? hci_cmd_work+0x5d0/0x7b0
[ 88.168435][ T5147] check_panic_on_warn+0x89/0xb0
[ 88.173559][ T5147] ? hci_cmd_work+0x5d0/0x7b0
[ 88.178275][ T5147] end_report+0x6f/0x160
[ 88.182786][ T5147] kasan_report+0x129/0x150
[ 88.187295][ T5147] ? hci_cmd_work+0x5d0/0x7b0
[ 88.191976][ T5147] hci_cmd_work+0x5d0/0x7b0
[ 88.196488][ T5147] ? process_one_work+0x868/0x15e0
[ 88.201602][ T5147] process_one_work+0x93a/0x15e0
[ 88.206715][ T5147] ? __lock_acquire+0xab9/0xd20
[ 88.211628][ T5147] ? __pfx_process_one_work+0x10/0x10
[ 88.217016][ T5147] ? assign_work+0x3a1/0x410
[ 88.221701][ T5147] worker_thread+0x9b0/0xee0
[ 88.226395][ T5147] kthread+0x711/0x8a0
[ 88.230492][ T5147] ? __pfx_worker_thread+0x10/0x10
[ 88.235609][ T5147] ? __pfx_kthread+0x10/0x10
[ 88.240459][ T5147] ? _raw_spin_unlock_irq+0x23/0x50
[ 88.245658][ T5147] ? lockdep_hardirqs_on+0x9c/0x150
[ 88.251030][ T5147] ? __pfx_kthread+0x10/0x10
[ 88.255716][ T5147] ret_from_fork+0x599/0xb30
[ 88.260321][ T5147] ? __pfx_ret_from_fork+0x10/0x10
[ 88.265458][ T5147] ? __switch_to_asm+0x39/0x70
[ 88.270233][ T5147] ? __switch_to_asm+0x33/0x70
[ 88.275012][ T5147] ? __pfx_kthread+0x10/0x10
[ 88.279600][ T5147] ret_from_fork_asm+0x1a/0x30
[ 88.284371][ T5147]
[ 88.287713][ T5147] Kernel Offset: disabled
[ 88.292115][ T5147] Rebooting in 86400 seconds..
syzkaller build log:
go env (err=)
AR='ar'
CC='gcc'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='g++'
GCCGO='gccgo'
GO111MODULE='auto'
GOAMD64='v1'
GOARCH='amd64'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build3521217688=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod'
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'
GOTELEMETRY='local'
GOTELEMETRYDIR='/syzkaller/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.24.4'
GOWORK=''
PKG_CONFIG='pkg-config'
git status (err=)
HEAD detached at 6756545c280
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:32: run command via tools/syz-env for best compatibility, see:
Makefile:33: 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
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=6756545c28028f343346a8f93b5ca6d0664a598c -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230725-140330'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=6756545c28028f343346a8f93b5ca6d0664a598c -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230725-140330'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=6756545c28028f343346a8f93b5ca6d0664a598c -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230725-140330'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress
mkdir -p ./bin/linux_amd64
gcc -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 -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"6756545c28028f343346a8f93b5ca6d0664a598c\"