loop0: detected capacity change from 0 to 40427 F2FS-fs (loop0): Found nat_bits in checkpoint F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5 ------------[ cut here ]------------ kernel BUG at fs/f2fs/file.c:100! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 3499 Comm: syz-executor137 Not tainted 5.15.160-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:f2fs_vm_page_mkwrite+0xdd6/0xe20 fs/f2fs/file.c:100 Code: fe e9 db f5 ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 44 fb ff ff e8 b9 20 34 fe e9 3a fb ff ff e8 8f e3 87 06 e8 aa 52 ea fd <0f> 0b 48 85 db 75 0b e8 9e 52 ea fd 4c 8b 2c 24 eb 08 e8 93 52 ea RSP: 0018:ffffc90002df77a0 EFLAGS: 00010293 RAX: ffffffff83960a16 RBX: 0000000000000400 RCX: ffff888015fd0000 RDX: 0000000000000000 RSI: 0000000000000400 RDI: 0000000000000000 RBP: ffffc90002df78e0 R08: ffffffff839600ba R09: ffffed100e70c1c7 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea00007749c0 R13: 0000000200100601 R14: 1ffff920005bef00 R15: 0000000200100602 FS: 00005555564e3380(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055acb960d160 CR3: 0000000073270000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_page_mkwrite+0x1a9/0x440 mm/memory.c:2892 wp_page_shared+0x179/0x690 mm/memory.c:3229 handle_pte_fault mm/memory.c:4639 [inline] __handle_mm_fault mm/memory.c:4756 [inline] handle_mm_fault+0x2a3d/0x5950 mm/memory.c:4854 do_user_addr_fault arch/x86/mm/fault.c:1388 [inline] handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x271/0x740 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568 RIP: 0010:copy_user_generic_unrolled+0x89/0xc0 arch/x86/lib/copy_user_64.S:92 Code: 38 4c 89 47 20 4c 89 4f 28 4c 89 57 30 4c 89 5f 38 48 8d 76 40 48 8d 7f 40 ff c9 75 b6 89 d1 83 e2 07 c1 e9 03 74 12 4c 8b 06 <4c> 89 07 48 8d 76 08 48 8d 7f 08 ff c9 75 ee 21 d2 74 10 89 d1 8a RSP: 0018:ffffc90002df7d68 EFLAGS: 00050202 RAX: ffffffff8408dc01 RBX: 0000000020000290 RCX: 0000000000000002 RDX: 0000000000000000 RSI: ffffc90002df7de0 RDI: 0000000020000280 RBP: ffffc90002df7e50 R08: 00000000665cf471 R09: fffff520005befbe R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000010 R13: 00007ffffffff000 R14: ffffc90002df7de0 R15: 0000000020000280 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline] raw_copy_to_user arch/x86/include/asm/uaccess_64.h:58 [inline] _copy_to_user+0xef/0x130 lib/usercopy.c:40 copy_to_user include/linux/uaccess.h:200 [inline] put_timespec64+0xf6/0x150 kernel/time/time.c:812 __do_sys_clock_gettime kernel/time/posix-timers.c:1139 [inline] __se_sys_clock_gettime kernel/time/posix-timers.c:1127 [inline] __x64_sys_clock_gettime+0x1cd/0x220 kernel/time/posix-timers.c:1127 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fa78bd1c7b9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff9e2828f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e4 RAX: ffffffffffffffda RBX: 00007fff9e282ad8 RCX: 00007fa78bd1c7b9 RDX: 00007fa78bd1c7b9 RSI: 0000000020000280 RDI: 0000000000000000 RBP: 00007fa78bd94610 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff9e282ac8 R14: 0000000000000001 R15: 0000000000000001 Modules linked in: ---[ end trace 63d32fbbf63079ba ]--- RIP: 0010:f2fs_vm_page_mkwrite+0xdd6/0xe20 fs/f2fs/file.c:100 Code: fe e9 db f5 ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 44 fb ff ff e8 b9 20 34 fe e9 3a fb ff ff e8 8f e3 87 06 e8 aa 52 ea fd <0f> 0b 48 85 db 75 0b e8 9e 52 ea fd 4c 8b 2c 24 eb 08 e8 93 52 ea RSP: 0018:ffffc90002df77a0 EFLAGS: 00010293 RAX: ffffffff83960a16 RBX: 0000000000000400 RCX: ffff888015fd0000 RDX: 0000000000000000 RSI: 0000000000000400 RDI: 0000000000000000 RBP: ffffc90002df78e0 R08: ffffffff839600ba R09: ffffed100e70c1c7 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea00007749c0 R13: 0000000200100601 R14: 1ffff920005bef00 R15: 0000000200100602 FS: 00005555564e3380(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055acb960d160 CR3: 0000000073270000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 38 4c 89 47 cmp %cl,0x47(%rcx,%rcx,4) 4: 20 4c 89 4f and %cl,0x4f(%rcx,%rcx,4) 8: 28 4c 89 57 sub %cl,0x57(%rcx,%rcx,4) c: 30 4c 89 5f xor %cl,0x5f(%rcx,%rcx,4) 10: 38 48 8d cmp %cl,-0x73(%rax) 13: 76 40 jbe 0x55 15: 48 8d 7f 40 lea 0x40(%rdi),%rdi 19: ff c9 dec %ecx 1b: 75 b6 jne 0xffffffd3 1d: 89 d1 mov %edx,%ecx 1f: 83 e2 07 and $0x7,%edx 22: c1 e9 03 shr $0x3,%ecx 25: 74 12 je 0x39 27: 4c 8b 06 mov (%rsi),%r8 * 2a: 4c 89 07 mov %r8,(%rdi) <-- trapping instruction 2d: 48 8d 76 08 lea 0x8(%rsi),%rsi 31: 48 8d 7f 08 lea 0x8(%rdi),%rdi 35: ff c9 dec %ecx 37: 75 ee jne 0x27 39: 21 d2 and %edx,%edx 3b: 74 10 je 0x4d 3d: 89 d1 mov %edx,%ecx 3f: 8a .byte 0x8a