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Message-ID: <675eab87.050a0220.37aaf.00f6.GAE@google.com>
Date: Sun, 15 Dec 2024 02:12:23 -0800
From: syzbot <syzbot+39f85d612b7c20d8db48@...kaller.appspotmail.com>
To: 42.hyeyoo@...il.com, akpm@...ux-foundation.org, andreyknvl@...il.com,
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Subject: Re: [syzbot] [mm?] WARNING: locking bug in __rmqueue_pcplist
syzbot has found a reproducer for the following issue on:
HEAD commit: a0e3919a2df2 Merge tag 'usb-6.13-rc3' of git://git.kernel...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=15a4c344580000
kernel config: https://syzkaller.appspot.com/x/.config?x=b874549ac3d0b012
dashboard link: https://syzkaller.appspot.com/bug?extid=39f85d612b7c20d8db48
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=139407e8580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=179407e8580000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/694eb7d9bffc/disk-a0e3919a.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1350ab6a6022/vmlinux-a0e3919a.xz
kernel image: https://storage.googleapis.com/syzbot-assets/f64266879922/bzImage-a0e3919a.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+39f85d612b7c20d8db48@...kaller.appspotmail.com
=============================
[ BUG: Invalid wait context ]
6.13.0-rc2-syzkaller-00333-ga0e3919a2df2 #0 Not tainted
-----------------------------
syz-executor300/5884 is trying to lock:
ffff88813fffc298 (&zone->lock){-.-.}-{3:3}, at: rmqueue_bulk mm/page_alloc.c:2307 [inline]
ffff88813fffc298 (&zone->lock){-.-.}-{3:3}, at: __rmqueue_pcplist+0x6bb/0x1600 mm/page_alloc.c:3001
other info that might help us debug this:
context-{2:2}
5 locks held by syz-executor300/5884:
#0: ffff888036701f20 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:144 [inline]
#0: ffff888036701f20 (&mm->mmap_lock){++++}-{4:4}, at: __mm_populate+0x21d/0x380 mm/gup.c:2014
#1: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#1: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#1: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: count_memcg_events_mm.constprop.0+0x3a/0x340 include/linux/memcontrol.h:994
#2: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#2: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#2: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: ieee80211_rx_napi+0xa6/0x400 net/mac80211/rx.c:5491
#3: ffff888067a68168 (&rdev->bss_lock){+.-.}-{3:3}, at: spin_lock_bh include/linux/spinlock.h:356 [inline]
#3: ffff888067a68168 (&rdev->bss_lock){+.-.}-{3:3}, at: cfg80211_inform_single_bss_data+0x791/0x1de0 net/wireless/scan.c:2329
#4: ffff8880b8644c58 (&pcp->lock){+.+.}-{3:3}, at: spin_trylock include/linux/spinlock.h:361 [inline]
#4: ffff8880b8644c58 (&pcp->lock){+.+.}-{3:3}, at: rmqueue_pcplist mm/page_alloc.c:3030 [inline]
#4: ffff8880b8644c58 (&pcp->lock){+.+.}-{3:3}, at: rmqueue mm/page_alloc.c:3074 [inline]
#4: ffff8880b8644c58 (&pcp->lock){+.+.}-{3:3}, at: get_page_from_freelist+0x350/0x2f80 mm/page_alloc.c:3471
stack backtrace:
CPU: 0 UID: 0 PID: 5884 Comm: syz-executor300 Not tainted 6.13.0-rc2-syzkaller-00333-ga0e3919a2df2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_lock_invalid_wait_context kernel/locking/lockdep.c:4826 [inline]
check_wait_context kernel/locking/lockdep.c:4898 [inline]
__lock_acquire+0x878/0x3c40 kernel/locking/lockdep.c:5176
lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
rmqueue_bulk mm/page_alloc.c:2307 [inline]
__rmqueue_pcplist+0x6bb/0x1600 mm/page_alloc.c:3001
rmqueue_pcplist mm/page_alloc.c:3043 [inline]
rmqueue mm/page_alloc.c:3074 [inline]
get_page_from_freelist+0x3d2/0x2f80 mm/page_alloc.c:3471
__alloc_pages_noprof+0x223/0x25b0 mm/page_alloc.c:4751
alloc_pages_mpol_noprof+0x2c9/0x610 mm/mempolicy.c:2269
stack_depot_save_flags+0x8e0/0x9e0 lib/stackdepot.c:627
kasan_save_stack+0x42/0x60 mm/kasan/common.c:48
__kasan_record_aux_stack+0xba/0xd0 mm/kasan/generic.c:544
task_work_add+0xc0/0x3b0 kernel/task_work.c:77
__run_posix_cpu_timers kernel/time/posix-cpu-timers.c:1223 [inline]
run_posix_cpu_timers+0x69f/0x7d0 kernel/time/posix-cpu-timers.c:1422
update_process_times+0x1a1/0x2d0 kernel/time/timer.c:2526
tick_sched_handle kernel/time/tick-sched.c:276 [inline]
tick_nohz_handler+0x376/0x530 kernel/time/tick-sched.c:297
__run_hrtimer kernel/time/hrtimer.c:1739 [inline]
__hrtimer_run_queues+0x5fb/0xae0 kernel/time/hrtimer.c:1803
hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1865
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x400 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__sanitizer_cov_trace_switch+0x4f/0x90 kernel/kcov.c:351
Code: 83 f8 10 75 2f 41 bd 03 00 00 00 4c 8b 75 00 31 db 4d 85 f6 74 1e 48 8b 74 dd 10 4c 89 e2 4c 89 ef 48 83 c3 01 48 8b 4c 24 28 <e8> 8c fd ff ff 49 39 de 75 e2 5b 5d 41 5c 41 5d 41 5e c3 cc cc cc
RSP: 0018:ffffc90000007098 EFLAGS: 00000212
RAX: 0000000000000000 RBX: 0000000000000020 RCX: ffffffff8aaf7a17
RDX: 0000000000000000 RSI: 00000000000000f4 RDI: 0000000000000001
RBP: ffffffff8cc04980 R08: 0000000000000001 R09: 00000000000000e8
R10: 0000000000000000 R11: 0000000000000004 R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000020 R15: dffffc0000000000
_ieee802_11_parse_elems_full+0x297/0x4340 net/mac80211/parse.c:293
ieee802_11_parse_elems_full+0x9ca/0x1680 net/mac80211/parse.c:984
ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2384 [inline]
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2391 [inline]
ieee80211_inform_bss+0xfd/0x1100 net/mac80211/scan.c:79
rdev_inform_bss net/wireless/rdev-ops.h:418 [inline]
cfg80211_inform_single_bss_data+0x8f6/0x1de0 net/wireless/scan.c:2334
cfg80211_inform_bss_data+0x205/0x3ba0 net/wireless/scan.c:3189
cfg80211_inform_bss_frame_data+0x272/0x7a0 net/wireless/scan.c:3284
ieee80211_bss_info_update+0x311/0xab0 net/mac80211/scan.c:226
ieee80211_scan_rx+0x474/0xac0 net/mac80211/scan.c:340
__ieee80211_rx_handle_packet net/mac80211/rx.c:5232 [inline]
ieee80211_rx_list+0x1bd7/0x2970 net/mac80211/rx.c:5469
ieee80211_rx_napi+0xdd/0x400 net/mac80211/rx.c:5492
ieee80211_rx include/net/mac80211.h:5166 [inline]
ieee80211_handle_queued_frames+0xd5/0x130 net/mac80211/main.c:441
tasklet_action_common+0x251/0x3f0 kernel/softirq.c:811
handle_softirqs+0x213/0x8f0 kernel/softirq.c:561
__do_softirq kernel/softirq.c:595 [inline]
invoke_softirq kernel/softirq.c:435 [inline]
__irq_exit_rcu+0x109/0x170 kernel/softirq.c:662
irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:878 [inline]
RIP: 0010:count_memcg_events_mm.constprop.0+0x108/0x340 include/linux/memcontrol.h:998
Code: ba 01 00 00 00 89 de 48 89 ef e8 c3 13 22 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 91 2d b7 ff 48 85 db 0f 85 06 02 00 00 <e8> 13 2b b7 ff e8 9e 50 46 09 31 ff 89 c3 89 c6 e8 43 2d b7 ff 85
RSP: 0018:ffffc90002ee7a90 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81e2da5e
RDX: ffff88803650a440 RSI: ffffffff81e2da68 RDI: 0000000000000007
RBP: ffff888035a04000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000200
R13: ffff8880223138d8 R14: 0000000000000000 R15: ffff88803650a440
count_memcg_event_mm include/linux/memcontrol.h:1004 [inline]
mm_account_fault mm/memory.c:5978 [inline]
handle_mm_fault+0x5cc/0xaa0 mm/memory.c:6138
faultin_page mm/gup.c:1196 [inline]
__get_user_pages+0x8d9/0x3b50 mm/gup.c:1494
populate_vma_page_range+0x27f/0x3a0 mm/gup.c:1932
__mm_populate+0x1d6/0x380 mm/gup.c:2035
mm_populate include/linux/mm.h:3386 [inline]
vm_mmap_pgoff+0x293/0x360 mm/util.c:585
ksys_mmap_pgoff+0x7d/0x5c0 mm/mmap.c:542
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline]
__x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9a0d37bde9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 1f 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9a0cb00148 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f9a0d4031f8 RCX: 00007f9a0d37bde9
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007f9a0d4031f0 R08: 00000000ffffffff R09: 0000000002000000
R10: 0000000000008031 R11: 0000000000000246 R12: 00007f9a0d4031fc
R13: 000000000000006e R14: 00007ffd73f9daf0 R15: 00007ffd73f9dbd8
</TASK>
----------------
Code disassembly (best guess):
0: 83 f8 10 cmp $0x10,%eax
3: 75 2f jne 0x34
5: 41 bd 03 00 00 00 mov $0x3,%r13d
b: 4c 8b 75 00 mov 0x0(%rbp),%r14
f: 31 db xor %ebx,%ebx
11: 4d 85 f6 test %r14,%r14
14: 74 1e je 0x34
16: 48 8b 74 dd 10 mov 0x10(%rbp,%rbx,8),%rsi
1b: 4c 89 e2 mov %r12,%rdx
1e: 4c 89 ef mov %r13,%rdi
21: 48 83 c3 01 add $0x1,%rbx
25: 48 8b 4c 24 28 mov 0x28(%rsp),%rcx
* 2a: e8 8c fd ff ff call 0xfffffdbb <-- trapping instruction
2f: 49 39 de cmp %rbx,%r14
32: 75 e2 jne 0x16
34: 5b pop %rbx
35: 5d pop %rbp
36: 41 5c pop %r12
38: 41 5d pop %r13
3a: 41 5e pop %r14
3c: c3 ret
3d: cc int3
3e: cc int3
3f: cc int3
---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
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