__do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xef/0x150 kernel/softirq.c:723 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline] sysvec_apic_timer_interrupt+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1056 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 ------------[ cut here ]------------ kernel BUG at mm/filemap.c:858! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 17176 Comm: syz.3.3250 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:__filemap_add_folio+0xfcf/0x1280 mm/filemap.c:858 Code: 58 c5 ff 48 c7 c6 00 30 bd 8b 4c 89 ef e8 d9 3f 12 00 90 0f 0b e8 f1 57 c5 ff 48 c7 c6 60 30 bd 8b 4c 89 ef e8 c2 3f 12 00 90 <0f> 0b e8 da 57 c5 ff 90 0f 0b 90 e9 4b fe ff ff e8 cc 57 c5 ff 90 RSP: 0018:ffffc9000573f820 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000112c00 RCX: 0000000000000000 RDX: ffff8880304da480 RSI: ffffffff82558328 RDI: ffff8880304da904 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000002 R13: ffffea000073f080 R14: 0000000000000000 R15: 1ffff92000ae7f2e FS: 00005555625f6500(0000) GS:ffff8880d644a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f7ce1e3300 CR3: 000000002d29a000 CR4: 0000000000352ef0 Call Trace: filemap_add_folio+0x1d8/0x690 mm/filemap.c:966 ra_alloc_folio mm/readahead.c:456 [inline] page_cache_ra_order+0x614/0xf30 mm/readahead.c:515 do_sync_mmap_readahead mm/filemap.c:3400 [inline] filemap_fault+0x191a/0x2eb0 mm/filemap.c:3549 __do_fault+0x10d/0x550 mm/memory.c:5355 do_shared_fault mm/memory.c:5854 [inline] do_fault+0x2db/0x1a00 mm/memory.c:5928 do_pte_missing mm/memory.c:4469 [inline] handle_pte_fault mm/memory.c:6308 [inline] __handle_mm_fault+0x180f/0x2b60 mm/memory.c:6446 handle_mm_fault+0x36d/0xa20 mm/memory.c:6615 do_user_addr_fault+0x5a3/0x12f0 arch/x86/mm/fault.c:1334 handle_page_fault arch/x86/mm/fault.c:1474 [inline] exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1527 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0033:0x7f2fe2b6ccc8 Code: 66 89 74 17 02 88 0f c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 c5 fa 7f 07 c5 fa 7f 4c 17 f0 c3 0f 1f 44 00 00 48 8b 4c 16 f8 48 8b 36 <48> 89 37 48 89 4c 17 f8 c3 62 e1 fe 28 6f 54 16 ff 62 e1 fe 28 6f RSP: 002b:00007ffeb2d51578 EFLAGS: 00010246 RAX: 00002000000003c0 RBX: 0000000000000004 RCX: 0031313230386c6e RDX: 0000000000000008 RSI: 0031313230386c6e RDI: 00002000000003c0 RBP: fffffffffffffffe R08: 0000001b30320000 R09: 0000000000000001 R10: 7ffffffffffffff7 R11: 0000000000000009 R12: 00007ffeb2d516a0 R13: 00007f2fe2e1609c R14: 00000000000520d9 R15: 00007f2fe2e16090 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0xfcf/0x1280 mm/filemap.c:858 Code: 58 c5 ff 48 c7 c6 00 30 bd 8b 4c 89 ef e8 d9 3f 12 00 90 0f 0b e8 f1 57 c5 ff 48 c7 c6 60 30 bd 8b 4c 89 ef e8 c2 3f 12 00 90 <0f> 0b e8 da 57 c5 ff 90 0f 0b 90 e9 4b fe ff ff e8 cc 57 c5 ff 90 RSP: 0018:ffffc9000573f820 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000112c00 RCX: 0000000000000000 RDX: ffff8880304da480 RSI: ffffffff82558328 RDI: ffff8880304da904 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000002 R13: ffffea000073f080 R14: 0000000000000000 R15: 1ffff92000ae7f2e FS: 00005555625f6500(0000) GS:ffff8880d634a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055cf0114f000 CR3: 000000002d29a000 CR4: 0000000000352ef0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400