syzbot

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WARNING: CPU: 0 PID: 5225 at include/linux/rwsem.h:195 rwsem_assert_held include/linux/rwsem.h:195 [inline]
WARNING: CPU: 0 PID: 5225 at include/linux/rwsem.h:195 mmap_assert_locked include/linux/mmap_lock.h:65 [inline]
WARNING: CPU: 0 PID: 5225 at include/linux/rwsem.h:195 follow_pte+0x414/0x4c0 mm/memory.c:6133
Modules linked in:
CPU: 0 UID: 0 PID: 5225 Comm: syz-executor419 Not tainted 6.11.0-rc6-syzkaller-00026-g88fac17500f4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:rwsem_assert_held include/linux/rwsem.h:195 [inline]
RIP: 0010:mmap_assert_locked include/linux/mmap_lock.h:65 [inline]
RIP: 0010:follow_pte+0x414/0x4c0 mm/memory.c:6133
Code: bf 98 01 00 00 be ff ff ff ff e8 a7 d8 44 09 31 ff 41 89 c4 89 c6 e8 9b cd b9 ff 45 85 e4 0f 85 80 fc ff ff e8 4d cb b9 ff 90 <0f> 0b 90 e9 72 fc ff ff e8 3f cb b9 ff 90 0f 0b 48 c7 c7 58 76 14
RSP: 0018:ffffc900034ef4d0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 00007f937d09a000 RCX: ffffffff81d1f4f5
RDX: ffff88802bdb8000 RSI: ffffffff81d1f503 RDI: 0000000000000005
RBP: ffff88807e671c98 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 00000000000000ef R12: 0000000000000000
R13: ffffc900034ef530 R14: ffffc900034ef550 R15: ffff88807ae29300
FS:  000055557a7aa380(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000080 CR3: 00000000787da000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 follow_phys arch/x86/mm/pat/memtype.c:957 [inline]
 get_pat_info+0xf2/0x510 arch/x86/mm/pat/memtype.c:991
 untrack_pfn+0xf7/0x4d0 arch/x86/mm/pat/memtype.c:1104
 unmap_single_vma+0x1bd/0x2b0 mm/memory.c:1831
 zap_page_range_single+0x326/0x560 mm/memory.c:1932
 unmap_mapping_range_vma mm/memory.c:3734 [inline]
 unmap_mapping_range_tree mm/memory.c:3751 [inline]
 unmap_mapping_pages mm/memory.c:3817 [inline]
 unmap_mapping_range+0x1ee/0x280 mm/memory.c:3854
 truncate_pagecache+0x53/0x90 mm/truncate.c:726
 simple_setattr+0xf2/0x120 fs/libfs.c:899
 notify_change+0xf41/0x1230 fs/attr.c:505
 do_truncate+0x15c/0x220 fs/open.c:65
 handle_truncate fs/namei.c:3381 [inline]
 do_open fs/namei.c:3731 [inline]
 path_openat+0x27a8/0x2d20 fs/namei.c:3886
 do_filp_open+0x1dc/0x430 fs/namei.c:3913
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1416
 do_sys_open fs/open.c:1431 [inline]
 __do_sys_openat fs/open.c:1447 [inline]
 __se_sys_openat fs/open.c:1442 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1442
 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: 0033:0x7fb93ec2d859
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc0da98878 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fb93ec76105 RCX: 00007fb93ec2d859
RDX: 0000000000000300 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007fb93ec760e3 R08: 0000000000000006 R09: 0000000000000006
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb93ec7b09c
R13: 00007fb93ec760a3 R14: 0000000000000001 R15: 0000000000000001
 </TASK>