linux-kernel - [syzbot] [net?] WARNING in max_vclocks

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Message-ID: <677c7b81.050a0220.3b3668.00f3.GAE@google.com>
Date: Mon, 06 Jan 2025 16:55:29 -0800
From: syzbot <syzbot+94d20db923b9f51be0df@...kaller.appspotmail.com>
To: andrew+netdev@...n.ch, davem@...emloft.net, edumazet@...gle.com, 
	kuba@...nel.org, linux-kernel@...r.kernel.org, netdev@...r.kernel.org, 
	pabeni@...hat.com, richardcochran@...il.com, syzkaller-bugs@...glegroups.com
Subject: [syzbot] [net?] WARNING in max_vclocks_store

Hello,

syzbot found the following issue on:

HEAD commit:    0bc21e701a6f MAINTAINERS: Remove Olof from SoC maintainers
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=162d16c4580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=86dd15278dbfe19f
dashboard link: https://syzkaller.appspot.com/bug?extid=94d20db923b9f51be0df
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=133f76df980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16d198b0580000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/0ddf8c394b52/disk-0bc21e70.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/e1f9219449bc/vmlinux-0bc21e70.xz
kernel image: https://storage.googleapis.com/syzbot-assets/bd6fd63b12da/bzImage-0bc21e70.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+94d20db923b9f51be0df@...kaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 0 PID: 5824 at mm/page_alloc.c:4729 __alloc_pages_noprof+0xeff/0x25b0 mm/page_alloc.c:4729
Modules linked in:
CPU: 0 UID: 0 PID: 5824 Comm: syz-executor276 Not tainted 6.13.0-rc5-syzkaller-00012-g0bc21e701a6f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__alloc_pages_noprof+0xeff/0x25b0 mm/page_alloc.c:4729
Code: 24 2c 00 00 00 00 89 cd 0f 84 8b f9 ff ff 8b 34 24 48 89 da 8b 7c 24 08 e8 de b2 fe ff e9 69 f9 ff ff c6 05 c4 6c 16 0e 01 90 <0f> 0b 90 31 db e9 9f f3 ff ff 89 14 24 e8 6f a4 0c 00 8b 14 24 e9
RSP: 0018:ffffc900038778d8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000016 RDI: 0000000000040dc0
RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: 0000000000000016
R13: 0000000000040dc0 R14: 1ffff9200070ef2f R15: ffff88802f8ae7f0
FS:  0000555559c97480(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f29b5b130d0 CR3: 00000000751b4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __alloc_pages_node_noprof include/linux/gfp.h:269 [inline]
 alloc_pages_node_noprof include/linux/gfp.h:296 [inline]
 ___kmalloc_large_node+0x84/0x1b0 mm/slub.c:4243
 __kmalloc_large_node_noprof+0x1c/0x70 mm/slub.c:4270
 __do_kmalloc_node mm/slub.c:4286 [inline]
 __kmalloc_noprof.cold+0xc/0x63 mm/slub.c:4310
 kmalloc_noprof include/linux/slab.h:905 [inline]
 kmalloc_array_noprof include/linux/slab.h:946 [inline]
 max_vclocks_store+0x212/0x390 drivers/ptp/ptp_sysfs.c:299
 dev_attr_store+0x55/0x80 drivers/base/core.c:2439
 sysfs_kf_write+0x117/0x170 fs/sysfs/file.c:139
 kernfs_fop_write_iter+0x33d/0x500 fs/kernfs/file.c:334
 new_sync_write fs/read_write.c:586 [inline]
 vfs_write+0x5ae/0x1150 fs/read_write.c:679
 ksys_write+0x12b/0x250 fs/read_write.c:731
 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: 0033:0x7f29b5a9c179
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff7b40a938 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f29b5a9c179
RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 431bde82d7b634db R14: 00007fff7b40a970 R15: 0000000000000001
 </TASK>


---
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