blkdev_ioctl+0x44e/0x6d0 block/ioctl.c:688 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+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f ------------[ cut here ]------------ kernel BUG at mm/filemap.c:870! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 17291 Comm: syz.2.3221 Not tainted syzkaller #0 PREEMPT(full) 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_add_folio+0xf5b/0x11e0 mm/filemap.c:870 Code: 52 c7 ff 48 c7 c6 60 70 99 8b 4c 89 ef e8 bd 6b 11 00 90 0f 0b e8 e5 52 c7 ff 48 c7 c6 c0 70 99 8b 4c 89 ef e8 a6 6b 11 00 90 <0f> 0b e8 ce 52 c7 ff 90 0f 0b 90 e9 f2 fb ff ff e8 c0 52 c7 ff 48 RSP: 0018:ffffc900050275c8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88803e4d4900 RSI: ffffffff81f5baca RDI: ffff88803e4d4d84 RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff908204d7 R11: 0000000000000000 R12: 0000000000000002 R13: ffffea0000ebe5c0 R14: 0000000000000000 R15: 1ffff92000a04ee3 FS: 00007f4b38a2c6c0(0000) GS:ffff8880d6a08000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3c50a3 CR3: 0000000048b3a000 CR4: 0000000000352ef0 Call Trace: filemap_add_folio+0x19a/0x610 mm/filemap.c:978 ra_alloc_folio mm/readahead.c:453 [inline] page_cache_ra_order+0x635/0xf20 mm/readahead.c:512 do_sync_mmap_readahead mm/filemap.c:3340 [inline] filemap_fault+0x1583/0x29a0 mm/filemap.c:3489 __do_fault+0x10d/0x490 mm/memory.c:5280 do_shared_fault mm/memory.c:5762 [inline] do_fault mm/memory.c:5836 [inline] do_pte_missing+0x1a6/0x3ba0 mm/memory.c:4361 handle_pte_fault mm/memory.c:6177 [inline] __handle_mm_fault+0x1556/0x2aa0 mm/memory.c:6318 handle_mm_fault+0x589/0xd10 mm/memory.c:6487 do_user_addr_fault+0x7a6/0x1370 arch/x86/mm/fault.c:1387 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x64/0xc0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0010:copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] RIP: 0010:raw_copy_to_user arch/x86/include/asm/uaccess_64.h:147 [inline] RIP: 0010:_inline_copy_to_user include/linux/uaccess.h:197 [inline] RIP: 0010:_copy_to_user+0xb6/0xd0 lib/usercopy.c:26 Code: 89 ee 48 89 ef e8 9a 3a 18 fd 4d 85 ff 75 a8 e8 e0 3f 18 fd 89 de 4c 89 e7 e8 36 d4 80 fd 0f 01 cb 48 89 d9 48 89 ef 4c 89 e6 a4 0f 1f 00 0f 01 ca 48 89 cb eb 80 66 2e 0f 1f 84 00 00 00 00 RSP: 0018:ffffc90005027dd8 EFLAGS: 00050246 RAX: 0000000000000001 RBX: 0000000000000010 RCX: 0000000000000010 RDX: fffff52000a04fc8 RSI: ffffc90005027e30 RDI: 00002000000000c0 RBP: 00002000000000c0 R08: 0000000000000000 R09: fffff52000a04fc7 R10: ffffc90005027e3f R11: 0000000000000001 R12: ffffc90005027e30 R13: 00002000000000d0 R14: 00007ffffffff000 R15: 0000000000000000 copy_to_user include/linux/uaccess.h:225 [inline] put_timespec64+0xb5/0x120 kernel/time/time.c:911 __do_sys_sched_rr_get_interval kernel/sched/syscalls.c:1572 [inline] __se_sys_sched_rr_get_interval kernel/sched/syscalls.c:1565 [inline] __x64_sys_sched_rr_get_interval+0xf0/0x110 kernel/sched/syscalls.c:1565 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4b37b8f6c9 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4b38a2c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000094 RAX: ffffffffffffffda RBX: 00007f4b37de5fa0 RCX: 00007f4b37b8f6c9 RDX: 0000000000000000 RSI: 00002000000000c0 RDI: 0000000000000000 RBP: 00007f4b37c11f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4b37de6038 R14: 00007f4b37de5fa0 R15: 00007ffdccdc1128 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0xf5b/0x11e0 mm/filemap.c:870 Code: 52 c7 ff 48 c7 c6 60 70 99 8b 4c 89 ef e8 bd 6b 11 00 90 0f 0b e8 e5 52 c7 ff 48 c7 c6 c0 70 99 8b 4c 89 ef e8 a6 6b 11 00 90 <0f> 0b e8 ce 52 c7 ff 90 0f 0b 90 e9 f2 fb ff ff e8 c0 52 c7 ff 48 RSP: 0018:ffffc900050275c8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88803e4d4900 RSI: ffffffff81f5baca RDI: ffff88803e4d4d84 RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff908204d7 R11: 0000000000000000 R12: 0000000000000002 R13: ffffea0000ebe5c0 R14: 0000000000000000 R15: 1ffff92000a04ee3 FS: 00007f4b38a2c6c0(0000) GS:ffff8880d6a08000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3c50a3 CR3: 0000000048b3a000 CR4: 0000000000352ef0 ---------------- Code disassembly (best guess): 0: 89 ee mov %ebp,%esi 2: 48 89 ef mov %rbp,%rdi 5: e8 9a 3a 18 fd call 0xfd183aa4 a: 4d 85 ff test %r15,%r15 d: 75 a8 jne 0xffffffb7 f: e8 e0 3f 18 fd call 0xfd183ff4 14: 89 de mov %ebx,%esi 16: 4c 89 e7 mov %r12,%rdi 19: e8 36 d4 80 fd call 0xfd80d454 1e: 0f 01 cb stac 21: 48 89 d9 mov %rbx,%rcx 24: 48 89 ef mov %rbp,%rdi 27: 4c 89 e6 mov %r12,%rsi * 2a: f3 a4 rep movsb %ds:(%rsi),%es:(%rdi) <-- trapping instruction 2c: 0f 1f 00 nopl (%rax) 2f: 0f 01 ca clac 32: 48 89 cb mov %rcx,%rbx 35: eb 80 jmp 0xffffffb7 37: 66 data16 38: 2e cs 39: 0f .byte 0xf 3a: 1f (bad) 3b: 84 00 test %al,(%rax) 3d: 00 00 add %al,(%rax)