(syz.0.0,5329,0):__ocfs2_journal_access:728 ERROR: Error -30 getting 1 access to buffer! (syz.0.0,5329,0):ocfs2_write_end_nolock:1945 ERROR: status = -30 (syz.0.0,5329,0):ocfs2_commit_trans:401 ERROR: status = -5 ------------[ cut here ]------------ kernel BUG at fs/ocfs2/mmap.c:106! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5329 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:__ocfs2_page_mkwrite fs/ocfs2/mmap.c:106 [inline] RIP: 0010:ocfs2_page_mkwrite+0xb58/0xb60 fs/ocfs2/mmap.c:143 Code: 18 4d fe e9 2a fd ff ff e8 b5 3e e9 07 e8 90 ec dd fd 4c 89 e7 48 c7 c6 60 c5 34 8c e8 71 89 3f fd 90 0f 0b e8 79 ec dd fd 90 <0f> 0b cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000f97f960 EFLAGS: 00010293 RAX: ffffffff83e89557 RBX: 00000000ffffffe2 RCX: ffff8880340fca80 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 00000000ffffffe2 RBP: ffffc9000f97faf0 R08: ffffffff9057abf7 R09: 1ffffffff20af57e R10: dffffc0000000000 R11: fffffbfff20af57f R12: dffffc0000000000 R13: 000000000001c000 R14: 0000000000000000 R15: 0000000000001000 FS: 0000555566a9f540(0000) GS:ffff88808c549000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb0dcab22b0 CR3: 000000003ee5a000 CR4: 0000000000352ef0 Call Trace: do_page_mkwrite+0x147/0x310 mm/memory.c:3684 do_shared_fault mm/memory.c:5936 [inline] do_fault mm/memory.c:5998 [inline] do_pte_missing+0x757/0x34b0 mm/memory.c:4566 handle_pte_fault mm/memory.c:6379 [inline] __handle_mm_fault mm/memory.c:6517 [inline] handle_mm_fault+0x1b36/0x3080 mm/memory.c:6686 do_user_addr_fault+0x744/0x1340 arch/x86/mm/fault.c:1394 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0033:0x7fb09c96e789 Code: de 00 01 74 a3 83 f9 c0 0f 87 59 fe ff ff 62 e1 fe 28 6f 4e 01 48 29 fe 48 83 c7 3f 49 8d 0c 10 48 83 e7 c0 48 01 fe 48 29 f9 a4 62 c1 fe 28 7f 00 62 c1 fe 28 7f 48 01 c3 0f 1f 80 00 00 00 RSP: 002b:00007ffc7da3b528 EFLAGS: 00010206 RAX: 000020000001c300 RBX: 0000000000000004 RCX: 000000000000968d RDX: 000000000000968d RSI: 00007fb09c408ba6 RDI: 000020000001c300 RBP: fffffffffffffffe R08: 000020000001c300 R09: 0000000000000004 R10: 000000000000968d R11: 0000000000000002 R12: 00007ffc7da3b650 R13: 00007fb09cc25fac R14: 0000000000016bc0 R15: 00007fb09cc25fa0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__ocfs2_page_mkwrite fs/ocfs2/mmap.c:106 [inline] RIP: 0010:ocfs2_page_mkwrite+0xb58/0xb60 fs/ocfs2/mmap.c:143 Code: 18 4d fe e9 2a fd ff ff e8 b5 3e e9 07 e8 90 ec dd fd 4c 89 e7 48 c7 c6 60 c5 34 8c e8 71 89 3f fd 90 0f 0b e8 79 ec dd fd 90 <0f> 0b cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000f97f960 EFLAGS: 00010293 RAX: ffffffff83e89557 RBX: 00000000ffffffe2 RCX: ffff8880340fca80 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 00000000ffffffe2 RBP: ffffc9000f97faf0 R08: ffffffff9057abf7 R09: 1ffffffff20af57e R10: dffffc0000000000 R11: fffffbfff20af57f R12: dffffc0000000000 R13: 000000000001c000 R14: 0000000000000000 R15: 0000000000001000 FS: 0000555566a9f540(0000) GS:ffff88808c549000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb0dcab22b0 CR3: 000000003ee5a000 CR4: 0000000000352ef0