==================================================================
BUG: KASAN: stack-out-of-bounds in profile_pc+0xd2/0x170 arch/x86/kernel/time.c:42
Read of size 8 at addr ffffc900041f7b80 by task syz.2.14/5223
CPU: 1 UID: 0 PID: 5223 Comm: syz.2.14 Not tainted 6.10.0-rc5-next-20240627-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
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:377 [inline]
print_report+0x169/0x550 mm/kasan/report.c:488
kasan_report+0x143/0x180 mm/kasan/report.c:601
profile_pc+0xd2/0x170 arch/x86/kernel/time.c:42
profile_tick+0xd7/0x150 kernel/profile.c:337
tick_sched_handle kernel/time/tick-sched.c:277 [inline]
tick_nohz_handler+0x386/0x500 kernel/time/tick-sched.c:297
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x551/0xd50 kernel/time/hrtimer.c:1753
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 4e 92 5f f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 33 de c7 f5 65 8b 05 74 21 69 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc900041f7b80 EFLAGS: 00000206
RAX: 2698c5037ea7e800 RBX: 1ffff9200083ef74 RCX: ffffffff816fd85a
RDX: dffffc0000000000 RSI: ffffffff8bcac900 RDI: 0000000000000001
RBP: ffffc900041f7c20 R08: ffffffff93007887 R09: 1ffffffff2600f10
R10: dffffc0000000000 R11: fffffbfff2600f11 R12: dffffc0000000000
R13: 1ffff9200083ef70 R14: ffffc900041f7ba0 R15: 0000000000000246
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
dummy_pullup+0x18b/0x200 drivers/usb/gadget/udc/dummy_hcd.c:924
usb_gadget_disconnect_locked+0x13c/0x4b0 drivers/usb/gadget/udc/core.c:779
gadget_unbind_driver+0xca/0x460 drivers/usb/gadget/udc/core.c:1668
device_remove drivers/base/dd.c:566 [inline]
__device_release_driver drivers/base/dd.c:1272 [inline]
device_release_driver_internal+0x4a9/0x7c0 drivers/base/dd.c:1295
driver_detach+0x1fb/0x2d0 drivers/base/dd.c:1358
bus_remove_driver+0x1f3/0x320 drivers/base/bus.c:742
usb_gadget_unregister_driver+0x4e/0x70 drivers/usb/gadget/udc/core.c:1733
raw_release+0xf9/0x1e0 drivers/usb/gadget/legacy/raw_gadget.c:462
__fput+0x24a/0x8a0 fs/file_table.c:422
__do_sys_close fs/open.c:1566 [inline]
__se_sys_close fs/open.c:1551 [inline]
__x64_sys_close+0x7f/0x110 fs/open.c:1551
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6ae117488a
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 43 8a 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 a3 8a 02 00 8b 44 24
RSP: 002b:00007f6ae1ec0000 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007f6ae1303fa0 RCX: 00007f6ae117488a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f6ae11f6756 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000293 R12: 0000000000000000
R13: 000000000000000b R14: 00007f6ae1303fa0 R15: 00007ffc9d38ea18
The buggy address belongs to stack of task syz.2.14/5223
and is located at offset 0 in frame:
_raw_spin_unlock_irqrestore+0x0/0x140 kernel/locking/spinlock.c:187
This frame has 1 object:
[32, 40) 'flags.i.i.i.i'
The buggy address belongs to the virtual mapping at
[ffffc900041f0000, ffffc900041f9000) created by:
copy_process+0x5d1/0x3d70 kernel/fork.c:2205
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802b872e58 pfn:0x2b872
memcg:ffff8880251bb402
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: ffff88802b872e58 0000000000000000 00000001ffffffff ffff8880251bb402
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102dc2(GFP_HIGHUSER|__GFP_NOWARN|__GFP_ZERO), pid 11, tgid 11 (kworker/u8:0), ts 76561757399, free_ts 76503538291
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1502
prep_new_page mm/page_alloc.c:1510 [inline]
get_page_from_freelist+0x2ccb/0x2d80 mm/page_alloc.c:3489
__alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4747
alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2263
vm_area_alloc_pages mm/vmalloc.c:3584 [inline]
__vmalloc_area_node mm/vmalloc.c:3660 [inline]
__vmalloc_node_range_noprof+0x971/0x1460 mm/vmalloc.c:3841
alloc_thread_stack_node kernel/fork.c:313 [inline]
dup_task_struct+0x444/0x8c0 kernel/fork.c:1114
copy_process+0x5d1/0x3d70 kernel/fork.c:2205
kernel_clone+0x226/0x8f0 kernel/fork.c:2788
user_mode_thread+0x132/0x1a0 kernel/fork.c:2866
call_usermodehelper_exec_sync kernel/umh.c:133 [inline]
call_usermodehelper_exec_work+0x9b/0x230 kernel/umh.c:164
process_one_work kernel/workqueue.c:3224 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3305
worker_thread+0x86d/0xd40 kernel/workqueue.c:3383
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:144
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
page last free pid 5151 tgid 5151 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1094 [inline]
free_unref_page+0xd22/0xea0 mm/page_alloc.c:2653
discard_slab mm/slub.c:2562 [inline]
__put_partials+0xeb/0x130 mm/slub.c:3030
put_cpu_partial+0x17c/0x250 mm/slub.c:3105
__slab_free+0x2ea/0x3d0 mm/slub.c:4343
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9e/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slub.c:3975 [inline]
slab_alloc_node mm/slub.c:4037 [inline]
kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4080
__alloc_skb+0x1c3/0x440 net/core/skbuff.c:664
netlink_sendmsg+0x638/0xcb0 net/netlink/af_netlink.c:1876
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
____sys_sendmsg+0x525/0x7d0 net/socket.c:2597
___sys_sendmsg net/socket.c:2651 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffffc900041f7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc900041f7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc900041f7b80: f1 f1 f1 f1 00 f3 f3 f3 00 00 00 00 00 00 00 00
^
ffffc900041f7c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc900041f7c80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
----------------
Code disassembly (best guess):
0: 9c pushf
1: 8f 44 24 20 pop 0x20(%rsp)
5: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1)
a: 74 08 je 0x14
c: 4c 89 f7 mov %r14,%rdi
f: e8 4e 92 5f f6 call 0xf65f9262
14: f6 44 24 21 02 testb $0x2,0x21(%rsp)
19: 75 52 jne 0x6d
1b: 41 f7 c7 00 02 00 00 test $0x200,%r15d
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 33 de c7 f5 call 0xf5c7de62 <-- trapping instruction
2f: 65 8b 05 74 21 69 74 mov %gs:0x74692174(%rip),%eax # 0x746921aa
36: 85 c0 test %eax,%eax
38: 74 43 je 0x7d
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: 04 24 add $0x24,%al
3e: 0e (bad)
3f: 36 ss