cleanup_net+0x5a0/0xbf0 net/core/net_namespace.c:648
 process_one_work+0x958/0x1b30 kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3317 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398
 kthread+0x3af/0x750 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
------------[ cut here ]------------
kernel BUG at ./include/linux/mm.h:1222!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 16532 Comm: syz.6.2145 Tainted: G     U             6.13.0-syzkaller-07048-gae8b53aac327 #0
Tainted: [U]=USER
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:folio_entire_mapcount include/linux/mm.h:1222 [inline]
RIP: 0010:folio_precise_page_mapcount fs/proc/internal.h:172 [inline]
RIP: 0010:kpagecount_read+0x477/0x570 fs/proc/page.c:71
Code: 31 ff 49 29 c4 48 8b 44 24 08 4c 01 20 e8 b1 c4 60 ff eb 92 e8 7a c9 60 ff 48 8b 3c 24 48 c7 c6 c0 14 82 8b e8 3a e5 a7 ff 90 <0f> 0b 4c 89 ff e8 cf 98 c3 ff e9 5a ff ff ff e8 55 c9 60 ff 48 8b
RSP: 0018:ffffc9000509fc98 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88803ea95a00 RSI: ffffffff82582926 RDI: ffff88803ea95e44
RBP: 0000000000e1afa8 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff905fdfd7 R11: ffffffff818b480e R12: 00000000203e5098
R13: 000000000007ca0b R14: dffffc0000000000 R15: 0000000000000000
FS:  00007fc40fb876c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1cd8512000 CR3: 000000003b0cc000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 pde_read fs/proc/inode.c:308 [inline]
 proc_reg_read+0x11d/0x330 fs/proc/inode.c:318
 vfs_read+0x1df/0xbf0 fs/read_write.c:563
 ksys_pread64 fs/read_write.c:756 [inline]
 __do_sys_pread64 fs/read_write.c:764 [inline]
 __se_sys_pread64 fs/read_write.c:761 [inline]
 __x64_sys_pread64+0x1f6/0x250 fs/read_write.c:761
 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: 0033:0x7fc40ed8cd29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc40fb87038 EFLAGS: 00000246 ORIG_RAX: 0000000000000011
RAX: ffffffffffffffda RBX: 00007fc40efa5fa0 RCX: 00007fc40ed8cd29
RDX: 000000007fffffff RSI: 0000000020000040 RDI: 000000000000000b
RBP: 00007fc40ee0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc40efa5fa0 R15: 00007ffd471310d8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:folio_entire_mapcount include/linux/mm.h:1222 [inline]
RIP: 0010:folio_precise_page_mapcount fs/proc/internal.h:172 [inline]
RIP: 0010:kpagecount_read+0x477/0x570 fs/proc/page.c:71
Code: 31 ff 49 29 c4 48 8b 44 24 08 4c 01 20 e8 b1 c4 60 ff eb 92 e8 7a c9 60 ff 48 8b 3c 24 48 c7 c6 c0 14 82 8b e8 3a e5 a7 ff 90 <0f> 0b 4c 89 ff e8 cf 98 c3 ff e9 5a ff ff ff e8 55 c9 60 ff 48 8b
RSP: 0018:ffffc9000509fc98 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88803ea95a00 RSI: ffffffff82582926 RDI: ffff88803ea95e44
RBP: 0000000000e1afa8 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff905fdfd7 R11: ffffffff818b480e R12: 00000000203e5098
R13: 000000000007ca0b R14: dffffc0000000000 R15: 0000000000000000
FS:  00007fc40fb876c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f792321b440 CR3: 000000003b0cc000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400