blkdev_ioctl+0x513/0x6f0 block/ioctl.c:779 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x10b/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f ------------[ cut here ]------------ kernel BUG at mm/filemap.c:859! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 24409 Comm: syz.0.4967 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+0xf81/0x1350 mm/filemap.c:859 Code: 15 a5 c3 ff 48 8d 3d 4e d1 96 0e 67 48 0f b9 3a e9 07 fd ff ff e8 ff a4 c3 ff 48 c7 c6 a0 55 bd 8b 4c 89 ef e8 10 bc 12 00 90 <0f> 0b 4c 8b 6c 24 60 e8 e3 a4 c3 ff 48 c7 84 24 a0 00 00 00 03 00 RSP: 0018:ffffc9000ccdf820 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88804a00a500 RSI: ffffffff8257a6c8 RDI: ffff88804a00a9c4 RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000002 R13: ffffea0000ee24c0 R14: 0000000000000000 R15: 1ffff9200199bf2f FS: 0000555582455500(0000) GS:ffff8880d6379000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fac17fa6286 CR3: 000000004139e000 CR4: 0000000000352ef0 Call Trace: filemap_add_folio+0x1d8/0x690 mm/filemap.c:967 ra_alloc_folio mm/readahead.c:456 [inline] page_cache_ra_order+0x614/0xf10 mm/readahead.c:515 do_sync_mmap_readahead mm/filemap.c:3406 [inline] filemap_fault+0x1900/0x2e90 mm/filemap.c:3555 __do_fault+0x10b/0x440 mm/memory.c:5458 do_shared_fault mm/memory.c:5957 [inline] do_fault+0x2db/0x1750 mm/memory.c:6031 do_pte_missing mm/memory.c:4550 [inline] handle_pte_fault mm/memory.c:6411 [inline] __handle_mm_fault+0x187d/0x2a00 mm/memory.c:6549 handle_mm_fault+0x36d/0xa20 mm/memory.c:6718 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: 0033:0x7f54b326a2f8 Code: 25 00 00 00 00 48 8d b8 d8 fe ff ff 4c 89 74 24 50 e8 5c 3b 0d 00 85 c0 75 13 48 8b 84 24 80 00 00 00 48 8b b4 24 c0 00 00 00 <48> 89 30 64 f0 83 2c 25 a0 ff ff ff 01 4c 8b 74 24 50 e9 91 f5 ff RSP: 002b:00007fff60c48050 EFLAGS: 00010246 RAX: 0000200000000000 RBX: 0000000000000002 RCX: 000000000000002a RDX: 248f5a93702243b8 RSI: 0000000000000000 RDI: 00005555824553d8 RBP: fffffffffffffffe R08: 0000001b2c220000 R09: 000000000000000f R10: 00001fffffffffff R11: 0000000000000006 R12: 00007fff60c48170 R13: 00007f54b361609c R14: 0000000000064ed7 R15: 00007f54b3616090 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0xf81/0x1350 mm/filemap.c:859 Code: 15 a5 c3 ff 48 8d 3d 4e d1 96 0e 67 48 0f b9 3a e9 07 fd ff ff e8 ff a4 c3 ff 48 c7 c6 a0 55 bd 8b 4c 89 ef e8 10 bc 12 00 90 <0f> 0b 4c 8b 6c 24 60 e8 e3 a4 c3 ff 48 c7 84 24 a0 00 00 00 03 00 RSP: 0018:ffffc9000ccdf820 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88804a00a500 RSI: ffffffff8257a6c8 RDI: ffff88804a00a9c4 RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000002 R13: ffffea0000ee24c0 R14: 0000000000000000 R15: 1ffff9200199bf2f FS: 0000555582455500(0000) GS:ffff8880d6379000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fac17fa6286 CR3: 000000004139e000 CR4: 0000000000352ef0