mm_populate include/linux/mm.h:2624 [inline]
 vm_mmap_pgoff+0x241/0x2f0 mm/util.c:524
 ksys_mmap_pgoff+0x4a4/0x740 mm/mmap.c:1624
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
------------[ cut here ]------------
kernel BUG at mm/filemap.c:2096!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 27996 Comm: syz-executor.4 Not tainted 5.15.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:find_lock_entries+0x10e5/0x1120 mm/filemap.c:2096
Code: e8 50 a5 d6 ff 4c 89 e7 48 c7 c6 40 c4 59 8a e8 b1 0d 0e 00 0f 0b e8 3a a5 d6 ff 4c 89 e7 48 c7 c6 60 b6 59 8a e8 9b 0d 0e 00 <0f> 0b e8 24 a5 d6 ff 4c 89 e7 48 c7 c6 a0 be 59 8a e8 85 0d 0e 00
RSP: 0018:ffffc90003a1f8e0 EFLAGS: 00010246
RAX: 0759b44ac6021800 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc9000efda000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc90003a1fa30 R08: ffffffff81d645b7 R09: ffffed1017383f2c
R10: ffffed1017383f2c R11: 0000000000000000 R12: ffffea0002a18000
R13: 0000000000000200 R14: fffffffffffffffe R15: 0000000000000300
FS:  00007f601910e700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ece321e160 CR3: 000000007a26f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 shmem_undo_range+0x2bd/0x1c30 mm/shmem.c:938
 shmem_truncate_range mm/shmem.c:1058 [inline]
 shmem_setattr+0x4cf/0x6d0 mm/shmem.c:1117
 notify_change+0xbb8/0x10c0 fs/attr.c:410
 do_truncate fs/open.c:64 [inline]
 do_sys_ftruncate+0x489/0x590 fs/open.c:192
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f601bb98ae9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f601910e188 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f601bcabf60 RCX: 00007f601bb98ae9
RDX: 0000000000000000 RSI: 0000000000000516 RDI: 0000000000000006
RBP: 00007f601bbf2f25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffec8443f3f R14: 00007f601910e300 R15: 0000000000022000
Modules linked in:
---[ end trace 1a56c7869a3f5b08 ]---
RIP: 0010:find_lock_entries+0x10e5/0x1120 mm/filemap.c:2096
Code: e8 50 a5 d6 ff 4c 89 e7 48 c7 c6 40 c4 59 8a e8 b1 0d 0e 00 0f 0b e8 3a a5 d6 ff 4c 89 e7 48 c7 c6 60 b6 59 8a e8 9b 0d 0e 00 <0f> 0b e8 24 a5 d6 ff 4c 89 e7 48 c7 c6 a0 be 59 8a e8 85 0d 0e 00
RSP: 0018:ffffc90003a1f8e0 EFLAGS: 00010246
RAX: 0759b44ac6021800 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc9000efda000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc90003a1fa30 R08: ffffffff81d645b7 R09: ffffed1017383f2c
R10: ffffed1017383f2c R11: 0000000000000000 R12: ffffea0002a18000
R13: 0000000000000200 R14: fffffffffffffffe R15: 0000000000000300
FS:  00007f601910e700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f86ee0fe000 CR3: 000000007a26f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600