(syz.0.0,5323,0):__ocfs2_journal_access:724 ERROR: Error -30 getting 1 access to buffer! (syz.0.0,5323,0):ocfs2_write_end_nolock:1945 ERROR: status = -30 (syz.0.0,5323,0):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: 5323 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+0xb53/0xb60 fs/ocfs2/mmap.c:143 Code: 87 6a fe e9 bc fd ff ff e8 9a 0b e3 07 e8 d5 bb fd fd 4c 89 f7 48 c7 c6 e0 1c 13 8c e8 26 f6 5f fd 90 0f 0b e8 be bb fd fd 90 <0f> 0b cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000f937940 EFLAGS: 00010293 RAX: ffffffff83c81872 RBX: 00000000ffffffe2 RCX: ffff88801cf4a500 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 00000000ffffffe2 RBP: ffffc9000f937ae0 R08: ffffffff9030f0f7 R09: 1ffffffff2061e1e R10: dffffc0000000000 R11: fffffbfff2061e1f R12: 000000000000c000 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000001000 FS: 0000555567afd540(0000) GS:ffff88808c87e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000000c000 CR3: 0000000041fff000 CR4: 0000000000352ef0 Call Trace: do_page_mkwrite+0x14d/0x310 mm/memory.c:3684 do_shared_fault mm/memory.c:5985 [inline] do_fault mm/memory.c:6047 [inline] do_pte_missing+0x6dc/0x33f0 mm/memory.c:4566 handle_pte_fault mm/memory.c:6427 [inline] __handle_mm_fault mm/memory.c:6565 [inline] handle_mm_fault+0x1bd9/0x3170 mm/memory.c:6734 do_user_addr_fault+0x75b/0x1340 arch/x86/mm/fault.c:1385 handle_page_fault arch/x86/mm/fault.c:1474 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1527 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0033:0x7f762596d749 Code: dd 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:00007ffda9016b28 EFLAGS: 00010202 RAX: 00002000000079c0 RBX: 0000000000000004 RCX: 0000000000000ecb RDX: 000000000000550b RSI: 00007f762540c53f RDI: 000020000000c000 RBP: fffffffffffffffe R08: 00002000000079c0 R09: 0000000000000002 R10: 000000000000550b R11: 0000000000000002 R12: 00007ffda9016c50 R13: 00007f7625c15fac R14: 0000000000014e7a R15: 00007f7625c15fa0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__ocfs2_page_mkwrite fs/ocfs2/mmap.c:106 [inline] RIP: 0010:ocfs2_page_mkwrite+0xb53/0xb60 fs/ocfs2/mmap.c:143 Code: 87 6a fe e9 bc fd ff ff e8 9a 0b e3 07 e8 d5 bb fd fd 4c 89 f7 48 c7 c6 e0 1c 13 8c e8 26 f6 5f fd 90 0f 0b e8 be bb fd fd 90 <0f> 0b cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000f937940 EFLAGS: 00010293 RAX: ffffffff83c81872 RBX: 00000000ffffffe2 RCX: ffff88801cf4a500 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 00000000ffffffe2 RBP: ffffc9000f937ae0 R08: ffffffff9030f0f7 R09: 1ffffffff2061e1e R10: dffffc0000000000 R11: fffffbfff2061e1f R12: 000000000000c000 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000001000 FS: 0000555567afd540(0000) GS:ffff88808c87e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000000c000 CR3: 0000000041fff000 CR4: 0000000000352ef0