BUG: unable to handle page fault for address: fffffffd8928478d #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD cf7b067 P4D cf7b067 PUD 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 3 PID: 9441 Comm: syz-executor.2 Not tainted 6.8.0-rc1-syzkaller-00026-g7ed2632ec7d7 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:alloc_pages_mpol+0x257/0x5f0 mm/mempolicy.c:2133 Code: 00 44 89 fe e8 da d4 aa ff 45 85 ff 75 05 45 31 ff eb 5f e8 5b d9 aa ff 8b 54 24 58 44 89 e6 44 89 ef 48 8b 0c 24 e8 58 8f f7 4c 89 f2 48 c1 ea 03 49 89 c7 48 b8 00 00 00 00 00 fc ff df 0f RSP: 0018:ffffc900200c7880 EFLAGS: 00010286 RAX: ffffea0001510dc0 RBX: 1ffff92004018f13 RCX: ffffffff81d4db1f RDX: 0000000000000000 RSI: ffffffff8b2fd300 RDI: ffffffff8ca98a78 RBP: ffffffff92a50800 R08: 0000000000000000 R09: fffffbfff1e75d62 R10: ffffffff8f3aeb17 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000140cca R14: ffffffff92a50804 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88802c900000(0063) knlGS:00000000f7f5ab40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: fffffffd8928478d CR3: 000000001c82c000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: folio_alloc+0x1e/0xe0 mm/mempolicy.c:2211 filemap_alloc_folio+0x3bb/0x490 mm/filemap.c:975 do_read_cache_folio+0x1b8/0x540 mm/filemap.c:3667 do_read_cache_page mm/filemap.c:3769 [inline] read_cache_page+0x5b/0x160 mm/filemap.c:3778 read_mapping_page include/linux/pagemap.h:888 [inline] ntfs_map_page fs/ntfs3/ntfs_fs.h:915 [inline] ntfs_fill_super+0x39ba/0x4490 fs/ntfs3/super.c:1485 get_tree_bdev+0x36b/0x600 fs/super.c:1619 vfs_get_tree+0x8c/0x370 fs/super.c:1784 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __ia32_sys_mount+0x291/0x310 fs/namespace.c:3875 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x79/0x110 arch/x86/entry/common.c:321 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:346 entry_SYSENTER_compat_after_hwframe+0x70/0x7a RIP: 0023:0xf7f5f579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f7f5a400 EFLAGS: 00000292 ORIG_RAX: 0000000000000015 RAX: ffffffffffffffda RBX: 00000000f7f5a460 RCX: 0000000020000200 RDX: 0000000020000040 RSI: 000000000000c040 RDI: 00000000f7f5a4a0 RBP: 00000000f7f5a460 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: CR2: fffffffd8928478d ---[ end trace 0000000000000000 ]--- RIP: 0010:alloc_pages_mpol+0x257/0x5f0 mm/mempolicy.c:2133 Code: 00 44 89 fe e8 da d4 aa ff 45 85 ff 75 05 45 31 ff eb 5f e8 5b d9 aa ff 8b 54 24 58 44 89 e6 44 89 ef 48 8b 0c 24 e8 58 8f f7 4c 89 f2 48 c1 ea 03 49 89 c7 48 b8 00 00 00 00 00 fc ff df 0f RSP: 0018:ffffc900200c7880 EFLAGS: 00010286 RAX: ffffea0001510dc0 RBX: 1ffff92004018f13 RCX: ffffffff81d4db1f RDX: 0000000000000000 RSI: ffffffff8b2fd300 RDI: ffffffff8ca98a78 RBP: ffffffff92a50800 R08: 0000000000000000 R09: fffffbfff1e75d62 R10: ffffffff8f3aeb17 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000140cca R14: ffffffff92a50804 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88802c900000(0063) knlGS:00000000f7f5ab40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: fffffffd8928478d CR3: 000000001c82c000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi