release_pages+0x20d1/0x2340 mm/swap.c:1035 __pagevec_release+0x6d/0xe0 mm/swap.c:1055 pagevec_release include/linux/pagevec.h:71 [inline] folio_batch_release include/linux/pagevec.h:135 [inline] shmem_undo_range+0x808/0x21d0 mm/shmem.c:955 shmem_truncate_range mm/shmem.c:1071 [inline] shmem_evict_inode+0x225/0x9f0 mm/shmem.c:1180 evict+0x4b2/0x9d0 fs/inode.c:703 __dentry_kill+0x412/0x630 fs/dcache.c:611 dentry_kill+0xb8/0x290 fs/dcache.c:-1 dput+0xfa/0x1d0 fs/dcache.c:918 __fput+0x597/0x8b0 fs/file_table.c:328 task_work_run+0x1d0/0x260 kernel/task_work.c:203 exit_task_work include/linux/task_work.h:39 [inline] do_exit+0x9d5/0x2570 kernel/exit.c:887 do_group_exit+0x229/0x2e0 kernel/exit.c:1030 __do_sys_exit_group kernel/exit.c:1041 [inline] __se_sys_exit_group kernel/exit.c:1039 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1039 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 ------------[ cut here ]------------ kernel BUG at mm/filemap.c:153! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 9394 Comm: syz.6.1342 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026 RIP: 0010:filemap_unaccount_folio+0x559/0xa00 mm/filemap.c:153 Code: 07 38 c1 0f 8c 35 fe ff ff 4c 89 e7 e8 40 2a 28 00 e9 28 fe ff ff e8 96 c6 d6 ff 48 89 df 48 c7 c6 20 07 b5 8a e8 f7 11 12 00 <0f> 0b e8 80 c6 d6 ff 48 89 df 48 c7 c6 80 0c b5 8a e8 e1 11 12 00 RSP: 0018:ffffc90003397660 EFLAGS: 00010046 RAX: 6fb59e5531f0bd00 RBX: ffffea0000e81280 RCX: 6fb59e5531f0bd00 RDX: 0000000000000002 RSI: ffffffff8aac2e40 RDI: ffffffff8afe72a0 RBP: ffffc900033977b8 R08: ffffffff8f22416f R09: 1ffffffff1e4482d R10: dffffc0000000000 R11: fffffbfff1e4482e R12: ffff888031a948d8 R13: ffffc90003397700 R14: dffffc0000000000 R15: ffff888031a948d8 FS: 0000555586cb8500(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e609ff8 CR3: 00000000653d6000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __filemap_remove_folio+0xc1/0x900 mm/filemap.c:222 filemap_remove_folio+0xed/0x2c0 mm/filemap.c:255 truncate_inode_folio+0x59/0x70 mm/truncate.c:195 shmem_undo_range+0x554/0x21d0 mm/shmem.c:951 shmem_truncate_range mm/shmem.c:1071 [inline] shmem_evict_inode+0x225/0x9f0 mm/shmem.c:1180 evict+0x4b2/0x9d0 fs/inode.c:703 __dentry_kill+0x412/0x630 fs/dcache.c:611 dentry_kill+0xb8/0x290 fs/dcache.c:-1 dput+0xfa/0x1d0 fs/dcache.c:918 __fput+0x597/0x8b0 fs/file_table.c:328 task_work_run+0x1d0/0x260 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:180 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:213 __syscall_exit_to_user_mode_work kernel/entry/common.c:295 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:306 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7eff23b9fb19 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd6a3f4158 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007ffd6a3f4240 RCX: 00007eff23b9fb19 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 000000000008f7a7 R08: 0000000000000001 R09: 0000000000000000 R10: 0000001b30c20000 R11: 0000000000000246 R12: 00007ffd6a3f4280 R13: 00007eff23e25fac R14: 000000000008f86e R15: 00007eff23e25fa0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:filemap_unaccount_folio+0x559/0xa00 mm/filemap.c:153 Code: 07 38 c1 0f 8c 35 fe ff ff 4c 89 e7 e8 40 2a 28 00 e9 28 fe ff ff e8 96 c6 d6 ff 48 89 df 48 c7 c6 20 07 b5 8a e8 f7 11 12 00 <0f> 0b e8 80 c6 d6 ff 48 89 df 48 c7 c6 80 0c b5 8a e8 e1 11 12 00 RSP: 0018:ffffc90003397660 EFLAGS: 00010046 RAX: 6fb59e5531f0bd00 RBX: ffffea0000e81280 RCX: 6fb59e5531f0bd00 RDX: 0000000000000002 RSI: ffffffff8aac2e40 RDI: ffffffff8afe72a0 RBP: ffffc900033977b8 R08: ffffffff8f22416f R09: 1ffffffff1e4482d R10: dffffc0000000000 R11: fffffbfff1e4482e R12: ffff888031a948d8 R13: ffffc90003397700 R14: dffffc0000000000 R15: ffff888031a948d8 FS: 0000555586cb8500(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e609ff8 CR3: 00000000653d6000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400