==================================================================
BUG: KASAN: stack-out-of-bounds in profile_pc+0xa8/0xe0 arch/x86/kernel/time.c:42
Read of size 8 at addr ffffc90003c2f100 by task syz-executor376/5072
CPU: 1 PID: 5072 Comm: syz-executor376 Not tainted 6.3.0-rc3-syzkaller-00026-gfff5a5e7f528 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:319 [inline]
print_report+0x163/0x540 mm/kasan/report.c:430
kasan_report+0x176/0x1b0 mm/kasan/report.c:536
profile_pc+0xa8/0xe0 arch/x86/kernel/time.c:42
profile_tick+0xd8/0x130 kernel/profile.c:339
tick_sched_handle kernel/time/tick-sched.c:244 [inline]
tick_sched_timer+0x394/0x550 kernel/time/tick-sched.c:1480
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x562/0xd10 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
__sysvec_apic_timer_interrupt+0x13f/0x480 arch/x86/kernel/apic/apic.c:1113
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
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 6e fb 35 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 d3 29 b4 f6 65 8b 05 24 91 59 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc90003c2f100 EFLAGS: 00000206
RAX: 9a04483aef095100 RBX: 1ffff92000785e24 RCX: ffffffff816a859a
RDX: dffffc0000000000 RSI: ffffffff8aea7d60 RDI: 0000000000000001
RBP: ffffc90003c2f190 R08: dffffc0000000000 R09: fffffbfff205be39
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff92000785e20 R14: ffffc90003c2f120 R15: 0000000000000246
spin_unlock_irqrestore include/linux/spinlock.h:405 [inline]
rmqueue_bulk mm/page_alloc.c:3175 [inline]
__rmqueue_pcplist+0x1e71/0x2190 mm/page_alloc.c:3781
rmqueue_pcplist mm/page_alloc.c:3823 [inline]
rmqueue mm/page_alloc.c:3866 [inline]
get_page_from_freelist+0x791/0x33c0 mm/page_alloc.c:4322
__alloc_pages+0x255/0x670 mm/page_alloc.c:5591
__get_free_pages+0xc/0x30 mm/page_alloc.c:5641
kasan_populate_vmalloc_pte+0x2e/0xd0 mm/kasan/shadow.c:323
apply_to_pte_range mm/memory.c:2578 [inline]
apply_to_pmd_range mm/memory.c:2622 [inline]
apply_to_pud_range mm/memory.c:2658 [inline]
apply_to_p4d_range mm/memory.c:2694 [inline]
__apply_to_page_range+0x9c5/0xcc0 mm/memory.c:2728
alloc_vmap_area+0x1acc/0x1c00 mm/vmalloc.c:1638
__get_vm_area_node+0x16e/0x370 mm/vmalloc.c:2495
__vmalloc_node_range+0x3a2/0x12f0 mm/vmalloc.c:3141
__vmalloc_node mm/vmalloc.c:3246 [inline]
vzalloc+0x79/0x90 mm/vmalloc.c:3319
profile_init+0xee/0x130 kernel/profile.c:131
profiling_store+0x5e/0xc0 kernel/ksysfs.c:104
kernfs_fop_write_iter+0x3a6/0x4f0 fs/kernfs/file.c:334
call_write_iter include/linux/fs.h:1851 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x7b2/0xbb0 fs/read_write.c:584
ksys_write+0x1a0/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2c63ea0da9
Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc81a20b58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2c63ea0da9
RDX: 0000000000000012 RSI: 00000000200001c0 RDI: 0000000000000003
RBP: 00007f2c63e64cc0 R08: 0000000000000012 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2c63e64d50
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
The buggy address belongs to stack of task syz-executor376/5072
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
[ffffc90003c28000, ffffc90003c31000) created by:
copy_process+0x5bd/0x3fc0 kernel/fork.c:2100
The buggy address belongs to the physical page:
page:ffffea0001ccab40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x732ad
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 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 0x2dc2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_ZERO), pid 5069, tgid 5069 (strace-static-x), ts 59701233039, free_ts 59636928543
prep_new_page mm/page_alloc.c:2552 [inline]
get_page_from_freelist+0x3246/0x33c0 mm/page_alloc.c:4325
__alloc_pages+0x255/0x670 mm/page_alloc.c:5591
vm_area_alloc_pages mm/vmalloc.c:2943 [inline]
__vmalloc_area_node mm/vmalloc.c:3011 [inline]
__vmalloc_node_range+0x959/0x12f0 mm/vmalloc.c:3181
alloc_thread_stack_node kernel/fork.c:311 [inline]
dup_task_struct+0x3e5/0x750 kernel/fork.c:984
copy_process+0x5bd/0x3fc0 kernel/fork.c:2100
kernel_clone+0x222/0x800 kernel/fork.c:2684
__do_sys_clone kernel/fork.c:2825 [inline]
__se_sys_clone kernel/fork.c:2809 [inline]
__x64_sys_clone+0x235/0x280 kernel/fork.c:2809
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1453 [inline]
free_pcp_prepare mm/page_alloc.c:1503 [inline]
free_unref_page_prepare+0xe2f/0xe70 mm/page_alloc.c:3387
free_unref_page_list+0x596/0x830 mm/page_alloc.c:3528
release_pages+0x219e/0x2470 mm/swap.c:1042
tlb_batch_pages_flush mm/mmu_gather.c:97 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:292 [inline]
tlb_flush_mmu+0x100/0x210 mm/mmu_gather.c:299
tlb_finish_mmu+0xd4/0x1f0 mm/mmu_gather.c:391
exit_mmap+0x2c9/0x850 mm/mmap.c:3047
__mmput+0x115/0x3c0 kernel/fork.c:1209
exec_mmap+0x4eb/0x580 fs/exec.c:1034
begin_new_exec+0x665/0xf10 fs/exec.c:1293
load_elf_binary+0x95d/0x2820 fs/binfmt_elf.c:1001
search_binary_handler fs/exec.c:1736 [inline]
exec_binprm fs/exec.c:1778 [inline]
bprm_execve+0x90e/0x1740 fs/exec.c:1853
do_execveat_common+0x580/0x720 fs/exec.c:1960
do_execve fs/exec.c:2034 [inline]
__do_sys_execve fs/exec.c:2110 [inline]
__se_sys_execve fs/exec.c:2105 [inline]
__x64_sys_execve+0x92/0xa0 fs/exec.c:2105
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Memory state around the buggy address:
ffffc90003c2f000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc90003c2f080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90003c2f100: f1 f1 f1 f1 00 f3 f3 f3 00 00 00 00 00 00 00 00
^
ffffc90003c2f180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc90003c2f200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
----------------
Code disassembly (best guess):
0: 9c pushfq
1: 8f 44 24 20 popq 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 6e fb 35 f7 callq 0xf735fb82
14: f6 44 24 21 02 testb $0x2,0x21(%rsp)
19: 75 4e jne 0x69
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 d3 29 b4 f6 callq 0xf6b42a02 <-- trapping instruction
2f: 65 8b 05 24 91 59 75 mov %gs:0x75599124(%rip),%eax # 0x7559915a
36: 85 c0 test %eax,%eax
38: 74 3f je 0x79
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: 04 24 add $0x24,%al
3e: 0e (bad)
3f: 36 ss