arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218 __do_fast_syscall_32+0x80/0x120 arch/x86/entry/common.c:389 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411 ------------[ cut here ]------------ kernel BUG at mm/filemap.c:154! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 3 UID: 0 PID: 9458 Comm: syz.2.1034 Not tainted 6.14.0-rc3-syzkaller-00060-g6537cfb395f3 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:filemap_unaccount_folio+0xef/0x860 mm/filemap.c:154 Code: 57 0e cb ff 4c 8d 6b 30 31 ff 89 ee e8 4a 09 cb ff 85 ed 7e 17 e8 41 0e cb ff 48 c7 c6 00 85 78 8b 48 89 df e8 42 94 11 00 90 <0f> 0b e8 2a 0e cb ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 RSP: 0018:ffffc900035bf548 EFLAGS: 00010093 RAX: 0000000000000000 RBX: ffffea0001df6f00 RCX: ffffc900035bf3f0 RDX: ffff8880230c0000 RSI: ffffffff81eed00e RDI: ffff8880230c0444 RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff20c4e22 R10: ffffffff90627117 R11: 0000000000000004 R12: ffff888045991f78 R13: ffffea0001df6f30 R14: ffffea0001df6f00 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88802b700000(0000) knlGS:0000000000000000 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffffffffdfa50000 CR3: 000000000df80000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> delete_from_page_cache_batch+0x1d5/0x990 mm/filemap.c:333 truncate_inode_pages_range+0x27a/0xea0 mm/truncate.c:327 kill_bdev block/bdev.c:91 [inline] blkdev_flush_mapping+0xfb/0x290 block/bdev.c:670 blkdev_put_whole+0xc4/0xf0 block/bdev.c:677 bdev_release+0x47e/0x6d0 block/bdev.c:1102 blkdev_release+0x15/0x20 block/fops.c:660 __fput+0x3ff/0xb70 fs/file_table.c:464 task_work_run+0x14e/0x250 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0xad8/0x2d70 kernel/exit.c:938 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087 get_signal+0x24ed/0x26c0 kernel/signal.c:3036 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218 __do_fast_syscall_32+0x80/0x120 arch/x86/entry/common.c:389 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf748e579 Code: Unable to access opcode bytes at 0xf748e54f. RSP: 002b:00000000f511655c EFLAGS: 00000296 ORIG_RAX: 0000000000000004 RAX: 0000000000fc1000 RBX: 0000000000000009 RCX: 0000000080000000 RDX: 00000000fffffd2c RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:filemap_unaccount_folio+0xef/0x860 mm/filemap.c:154 Code: 57 0e cb ff 4c 8d 6b 30 31 ff 89 ee e8 4a 09 cb ff 85 ed 7e 17 e8 41 0e cb ff 48 c7 c6 00 85 78 8b 48 89 df e8 42 94 11 00 90 <0f> 0b e8 2a 0e cb ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 RSP: 0018:ffffc900035bf548 EFLAGS: 00010093 RAX: 0000000000000000 RBX: ffffea0001df6f00 RCX: ffffc900035bf3f0 RDX: ffff8880230c0000 RSI: ffffffff81eed00e RDI: ffff8880230c0444 RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff20c4e22 R10: ffffffff90627117 R11: 0000000000000004 R12: ffff888045991f78 R13: ffffea0001df6f30 R14: ffffea0001df6f00 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88802b700000(0000) knlGS:0000000000000000 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffffffffdfa50000 CR3: 000000000df80000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400