(syz.0.0,5315,0):__ocfs2_journal_access:727 ERROR: Error -30 getting 1 access to buffer! (syz.0.0,5315,0):ocfs2_write_end_nolock:1942 ERROR: status = -30 (syz.0.0,5315,0):ocfs2_commit_trans:404 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: 5315 Comm: syz.0.0 Not tainted 6.15.0-rc7-syzkaller #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+0xc32/0xc40 fs/ocfs2/mmap.c:144 Code: 07 e8 d2 a4 23 fe eb 0d 48 ff cb e8 c8 a4 23 fe 48 89 5c 24 08 49 be 00 00 00 00 00 fc ff df e9 d0 f4 ff ff e8 af a4 23 fe 90 <0f> 0b cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000fe379e0 EFLAGS: 00010293 RAX: ffffffff839c4d21 RBX: 00000000ffffffe2 RCX: ffff88801f6ac880 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 00000000ffffffe2 RBP: ffffc9000fe37b80 R08: ffffffff8f7f3377 R09: 1ffffffff1efe66e R10: dffffc0000000000 R11: fffffbfff1efe66f R12: ffffea00014f0480 R13: 0000000000000100 R14: 0000000000000000 R15: 0000000000001000 FS: 000055556fd27500(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000000c000 CR3: 000000003fa8d000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_page_mkwrite+0x14a/0x310 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 mm/memory.c:5997 [inline] __handle_mm_fault+0x18d2/0x5380 mm/memory.c:6140 handle_mm_fault+0x3f6/0x8c0 mm/memory.c:6309 do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1388 handle_page_fault arch/x86/mm/fault.c:1480 [inline] exc_page_fault+0x68/0x110 arch/x86/mm/fault.c:1538 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7f92eef5810c Code: 00 00 00 74 a0 83 f9 c0 0f 87 56 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 40 00 4c 8b RSP: 002b:00007ffc17c51f38 EFLAGS: 00010206 RAX: 000020000000a2c0 RBX: 0000000000000004 RCX: 00000000000033b3 RDX: 00000000000050f3 RSI: 00007f92eea0a937 RDI: 000020000000c000 RBP: 00007ffc17c52008 R08: 000020000000a2c0 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000002 R12: 00007f92ef1b5fac R13: 00007f92ef1b5fa0 R14: fffffffffffffffe R15: 00007ffc17c52050 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__ocfs2_page_mkwrite fs/ocfs2/mmap.c:107 [inline] RIP: 0010:ocfs2_page_mkwrite+0xc32/0xc40 fs/ocfs2/mmap.c:144 Code: 07 e8 d2 a4 23 fe eb 0d 48 ff cb e8 c8 a4 23 fe 48 89 5c 24 08 49 be 00 00 00 00 00 fc ff df e9 d0 f4 ff ff e8 af a4 23 fe 90 <0f> 0b cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000fe379e0 EFLAGS: 00010293 RAX: ffffffff839c4d21 RBX: 00000000ffffffe2 RCX: ffff88801f6ac880 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 00000000ffffffe2 RBP: ffffc9000fe37b80 R08: ffffffff8f7f3377 R09: 1ffffffff1efe66e R10: dffffc0000000000 R11: fffffbfff1efe66f R12: ffffea00014f0480 R13: 0000000000000100 R14: 0000000000000000 R15: 0000000000001000 FS: 000055556fd27500(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000000c000 CR3: 000000003fa8d000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400