loop0: detected capacity change from 0 to 32768 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. (syz.0.0,5324,0):__ocfs2_journal_access:705 ERROR: Error -30 getting 1 access to buffer! (syz.0.0,5324,0):ocfs2_write_end_nolock:1942 ERROR: status = -30 (syz.0.0,5324,0):ocfs2_commit_trans:382 ERROR: status = -5 ------------[ cut here ]------------ kernel BUG at fs/ocfs2/mmap.c:107! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted 6.15.0-rc2-syzkaller-00471-g119009db2674 #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:__ocfs2_page_mkwrite fs/ocfs2/mmap.c:107 [inline] RIP: 0010:ocfs2_page_mkwrite+0xda1/0xdb0 fs/ocfs2/mmap.c:144 Code: ff df 4d 89 fc e9 85 f3 ff ff 48 ff cb e8 c7 2e f9 fd 49 89 dc 49 be 00 00 00 00 00 fc ff df e9 6b f3 ff ff e8 b0 2e f9 fd 90 <0f> 0b cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 RSP: 0018:ffffc9000d53ee00 EFLAGS: 00010287 RAX: ffffffff83c98e70 RBX: 00000000ffffffe2 RCX: 0000000000100000 RDX: ffffc9000de5a000 RSI: 0000000000003ca2 RDI: 0000000000003ca3 RBP: ffffc9000d53efc0 R08: ffffffff83c98c62 R09: 1ffffffff20bfc8e R10: dffffc0000000000 R11: fffffbfff20bfc8f R12: 0000000000001000 R13: 0000000000002000 R14: ffffea0001359800 R15: 0000000000000000 FS: 00007fa9b8c176c0(0000) GS:ffff88808c59a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000002000 CR3: 0000000040bc8000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_page_mkwrite+0x159/0x340 mm/memory.c:3287 do_shared_fault mm/memory.c:5594 [inline] do_fault mm/memory.c:5656 [inline] do_pte_missing mm/memory.c:4160 [inline] handle_pte_fault+0x10c6/0x61c0 mm/memory.c:5997 __handle_mm_fault mm/memory.c:6140 [inline] handle_mm_fault+0x1129/0x1bf0 mm/memory.c:6309 do_user_addr_fault arch/x86/mm/fault.c:1388 [inline] handle_page_fault arch/x86/mm/fault.c:1480 [inline] exc_page_fault+0x2bb/0x920 arch/x86/mm/fault.c:1538 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:rep_movs_alternative+0x4a/0x90 arch/x86/lib/copy_user_64.S:74 Code: cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 db 83 f9 08 73 e8 eb c5 a4 c3 cc cc cc cc 48 8b 06 48 89 07 48 8d 47 08 48 83 e0 f8 48 RSP: 0018:ffffc9000d53f6d8 EFLAGS: 00050206 RAX: ffffffff85018101 RBX: 0000200000001400 RCX: 0000000000000400 RDX: 0000000000000000 RSI: ffff88804d661c00 RDI: 0000200000002000 RBP: ffffc9000d53f858 R08: ffff88804d661fff R09: 1ffff11009acc3ff R10: dffffc0000000000 R11: ffffed1009acc400 R12: 1ffff92001aa7fb3 R13: ffffc9000d53fd98 R14: 0000000000001000 R15: ffff88804d661000 copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] raw_copy_to_user arch/x86/include/asm/uaccess_64.h:147 [inline] copy_to_user_iter lib/iov_iter.c:25 [inline] iterate_ubuf include/linux/iov_iter.h:30 [inline] iterate_and_advance2 include/linux/iov_iter.h:300 [inline] iterate_and_advance include/linux/iov_iter.h:328 [inline] _copy_to_iter+0x268/0x1c90 lib/iov_iter.c:185 copy_page_to_iter+0xb1/0x160 lib/iov_iter.c:362 copy_folio_to_iter include/linux/uio.h:198 [inline] filemap_read+0x88f/0x1260 mm/filemap.c:2753 ocfs2_file_read_iter+0x42d/0xb80 fs/ocfs2/file.c:2589 new_sync_read fs/read_write.c:489 [inline] vfs_read+0x9a0/0xb90 fs/read_write.c:570 ksys_read+0x19d/0x2d0 fs/read_write.c:713 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa9b7d8e169 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:00007fa9b8c17038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007fa9b7fb5fa0 RCX: 00007fa9b7d8e169 RDX: 0000000000002020 RSI: 0000200000000400 RDI: 0000000000000004 RBP: 00007fa9b7e10a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fa9b7fb5fa0 R15: 00007ffd1954f8d8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__ocfs2_page_mkwrite fs/ocfs2/mmap.c:107 [inline] RIP: 0010:ocfs2_page_mkwrite+0xda1/0xdb0 fs/ocfs2/mmap.c:144 Code: ff df 4d 89 fc e9 85 f3 ff ff 48 ff cb e8 c7 2e f9 fd 49 89 dc 49 be 00 00 00 00 00 fc ff df e9 6b f3 ff ff e8 b0 2e f9 fd 90 <0f> 0b cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 RSP: 0018:ffffc9000d53ee00 EFLAGS: 00010287 RAX: ffffffff83c98e70 RBX: 00000000ffffffe2 RCX: 0000000000100000 RDX: ffffc9000de5a000 RSI: 0000000000003ca2 RDI: 0000000000003ca3 RBP: ffffc9000d53efc0 R08: ffffffff83c98c62 R09: 1ffffffff20bfc8e R10: dffffc0000000000 R11: fffffbfff20bfc8f R12: 0000000000001000 R13: 0000000000002000 R14: ffffea0001359800 R15: 0000000000000000 FS: 00007fa9b8c176c0(0000) GS:ffff88808c59a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa9b8bf5fd8 CR3: 0000000040bc8000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: cc int3 1: cc int3 2: cc int3 3: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) a: 00 00 00 d: 0f 1f 00 nopl (%rax) 10: 48 8b 06 mov (%rsi),%rax 13: 48 89 07 mov %rax,(%rdi) 16: 48 83 c6 08 add $0x8,%rsi 1a: 48 83 c7 08 add $0x8,%rdi 1e: 83 e9 08 sub $0x8,%ecx 21: 74 db je 0xfffffffe 23: 83 f9 08 cmp $0x8,%ecx 26: 73 e8 jae 0x10 28: eb c5 jmp 0xffffffef * 2a: f3 a4 rep movsb %ds:(%rsi),%es:(%rdi) <-- trapping instruction 2c: c3 ret 2d: cc int3 2e: cc int3 2f: cc int3 30: cc int3 31: 48 8b 06 mov (%rsi),%rax 34: 48 89 07 mov %rax,(%rdi) 37: 48 8d 47 08 lea 0x8(%rdi),%rax 3b: 48 83 e0 f8 and $0xfffffffffffffff8,%rax 3f: 48 rex.W