loop7: detected capacity change from 0 to 4096 BUG: unable to handle page fault for address: ffffed1104a2176f #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 23ffee067 P4D 23ffee067 PUD 0 Oops: Oops: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 8386 Comm: syz.7.373 Tainted: G W 6.16.0-syzkaller-11699-g7e161a991ea7 #0 PREEMPT_{RT,(full)} Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:206 [inline] RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:238 [inline] RIP: 0010:tif_test_bit include/linux/thread_info.h:192 [inline] RIP: 0010:tif_need_resched include/linux/thread_info.h:208 [inline] RIP: 0010:need_resched include/linux/sched.h:2206 [inline] RIP: 0010:preempt_schedule_irq+0xee/0x150 kernel/sched/core.c:7291 Code: 44 24 40 fa a9 00 02 00 00 74 05 e8 ec a8 cf f6 bf 01 00 00 00 e8 f2 62 99 f6 65 48 8b 1c 25 08 30 f5 91 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 9d 48 89 df e8 f3 2b 27 f7 eb 93 48 c7 04 24 0e RSP: 0018:ffffc9000621f640 EFLAGS: 00010802 RAX: 1ffff11004a21770 RBX: ffff88802510bb80 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8b61f7e0 RDI: 00000000ffffffff RBP: ffffc9000621f6e0 R08: ffffffff8f1cf737 R09: 1ffffffff1e39ee6 R10: dffffc0000000000 R11: fffffbfff1e39ee7 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc00ffffffff R15: 1ffff92000c43ec8 FS: 00007f6e3ce666c0(0000) GS:ffff8881268cd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1104a2176f CR3: 0000000053478000 CR4: 00000000003526f0 Call Trace: irqentry_exit+0x6f/0x90 kernel/entry/common.c:197 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:folio_add_lru+0xe/0x220 mm/swap.c:500 Code: 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 41 57 41 56 41 55 41 54 53 <48> 89 fb 49 bf 00 00 00 00 00 fc ff df e8 00 45 c5 ff 4c 8d 73 08 RSP: 0018:ffffc9000621f7a8 EFLAGS: 00000283 RAX: ffffffff81f51047 RBX: ffffea0001854340 RCX: 0000000000080000 RDX: ffffc9000deb3000 RSI: 0000000000005861 RDI: ffffea0001854340 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff9400030a869 R12: 0000000000000000 R13: 1ffffd400030a869 R14: 0000000000000000 R15: dffffc0000000000 filemap_add_folio+0x1af/0x270 mm/filemap.c:985 do_read_cache_folio+0x1de/0x560 mm/filemap.c:3924 do_read_cache_page mm/filemap.c:4023 [inline] read_cache_page+0x5d/0x170 mm/filemap.c:4032 read_mapping_page include/linux/pagemap.h:985 [inline] inode_read_data+0xa7/0x480 fs/ntfs3/inode.c:1054 ntfs_fill_super+0x39c8/0x40b0 fs/ntfs3/super.c:1533 get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1692 vfs_get_tree+0x92/0x2b0 fs/super.c:1815 do_new_mount+0x2a2/0x9e0 fs/namespace.c:3805 do_mount fs/namespace.c:4133 [inline] __do_sys_mount fs/namespace.c:4344 [inline] __se_sys_mount+0x317/0x410 fs/namespace.c:4321 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6e3f00030a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007f6e3ce65e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f6e3ce65ef0 RCX: 00007f6e3f00030a RDX: 0000200000000080 RSI: 000020000001f740 RDI: 00007f6e3ce65eb0 RBP: 0000200000000080 R08: 00007f6e3ce65ef0 R09: 0000000000810002 R10: 0000000000810002 R11: 0000000000000246 R12: 000020000001f740 R13: 00007f6e3ce65eb0 R14: 000000000001f73a R15: 0000200000000480 Modules linked in: CR2: ffffed1104a2176f ---[ end trace 0000000000000000 ]--- RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:206 [inline] RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:238 [inline] RIP: 0010:tif_test_bit include/linux/thread_info.h:192 [inline] RIP: 0010:tif_need_resched include/linux/thread_info.h:208 [inline] RIP: 0010:need_resched include/linux/sched.h:2206 [inline] RIP: 0010:preempt_schedule_irq+0xee/0x150 kernel/sched/core.c:7291 Code: 44 24 40 fa a9 00 02 00 00 74 05 e8 ec a8 cf f6 bf 01 00 00 00 e8 f2 62 99 f6 65 48 8b 1c 25 08 30 f5 91 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 9d 48 89 df e8 f3 2b 27 f7 eb 93 48 c7 04 24 0e RSP: 0018:ffffc9000621f640 EFLAGS: 00010802 RAX: 1ffff11004a21770 RBX: ffff88802510bb80 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8b61f7e0 RDI: 00000000ffffffff RBP: ffffc9000621f6e0 R08: ffffffff8f1cf737 R09: 1ffffffff1e39ee6 R10: dffffc0000000000 R11: fffffbfff1e39ee7 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc00ffffffff R15: 1ffff92000c43ec8 FS: 00007f6e3ce666c0(0000) GS:ffff8881268cd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1104a2176f CR3: 0000000053478000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 44 24 40 rex.R and $0x40,%al 3: fa cli 4: a9 00 02 00 00 test $0x200,%eax 9: 74 05 je 0x10 b: e8 ec a8 cf f6 call 0xf6cfa8fc 10: bf 01 00 00 00 mov $0x1,%edi 15: e8 f2 62 99 f6 call 0xf699630c 1a: 65 48 8b 1c 25 08 30 mov %gs:0xffffffff91f53008,%rbx 21: f5 91 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) <-- trapping instruction 2f: 74 9d je 0xffffffce 31: 48 89 df mov %rbx,%rdi 34: e8 f3 2b 27 f7 call 0xf7272c2c 39: eb 93 jmp 0xffffffce 3b: 48 rex.W 3c: c7 .byte 0xc7 3d: 04 24 add $0x24,%al 3f: 0e (bad)