(syz.0.0,5317,0):__ocfs2_journal_access:727 ERROR: Error -30 getting 1 access to buffer! (syz.0.0,5317,0):ocfs2_write_end_nolock:1942 ERROR: status = -30 (syz.0.0,5317,0):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: 5317 Comm: syz.0.0 Not tainted 6.15.0-syzkaller-03478-gc89756bcf406 #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+0xc37/0xc40 fs/ocfs2/mmap.c:144 Code: 07 e8 1d 59 21 fe eb 0d 48 ff cb e8 13 59 21 fe 48 89 5c 24 08 49 be 00 00 00 00 00 fc ff df e9 cb f4 ff ff e8 fa 58 21 fe 90 <0f> 0b cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000e55f9e0 EFLAGS: 00010293 RAX: ffffffff839e9956 RBX: 00000000ffffffe2 RCX: ffff8880007d2440 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 00000000ffffffe2 RBP: ffffc9000e55fb80 R08: ffffffff8f9fddb7 R09: 1ffffffff1f3fbb6 R10: dffffc0000000000 R11: fffffbfff1f3fbb7 R12: ffffea00014c0280 R13: 0000000000000100 R14: 0000000000000000 R15: 0000000000001000 FS: 0000555585650500(0000) GS:ffff88808d28f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f8b725f168 CR3: 0000000042da1000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_page_mkwrite+0x14d/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+0x1a3e/0x55e0 mm/memory.c:6140 handle_mm_fault+0x3f6/0x8c0 mm/memory.c:6309 do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1387 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7f6929357e48 Code: 66 89 74 17 02 88 0f c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 c5 fa 7f 07 c5 fa 7f 4c 17 f0 c3 0f 1f 44 00 00 48 8b 4c 16 f8 48 8b 36 <48> 89 37 48 89 4c 17 f8 c3 62 e1 fe 28 6f 54 16 ff 62 e1 fe 28 6f RSP: 002b:00007fff7c591968 EFLAGS: 00010206 RAX: 0000200000002440 RBX: 0000000000000004 RCX: 0030706f6f6c2f76 RDX: 000000000000000b RSI: 6f6f6c2f7665642f RDI: 0000200000002440 RBP: 00007f69295b7ba0 R08: 00007f69291ff040 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000009 R12: 00007f69295b5fac R13: 00007f69295b5fa0 R14: fffffffffffffffe R15: 00007fff7c591a80 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__ocfs2_page_mkwrite fs/ocfs2/mmap.c:107 [inline] RIP: 0010:ocfs2_page_mkwrite+0xc37/0xc40 fs/ocfs2/mmap.c:144 Code: 07 e8 1d 59 21 fe eb 0d 48 ff cb e8 13 59 21 fe 48 89 5c 24 08 49 be 00 00 00 00 00 fc ff df e9 cb f4 ff ff e8 fa 58 21 fe 90 <0f> 0b cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000e55f9e0 EFLAGS: 00010293 RAX: ffffffff839e9956 RBX: 00000000ffffffe2 RCX: ffff8880007d2440 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 00000000ffffffe2 RBP: ffffc9000e55fb80 R08: ffffffff8f9fddb7 R09: 1ffffffff1f3fbb6 R10: dffffc0000000000 R11: fffffbfff1f3fbb7 R12: ffffea00014c0280 R13: 0000000000000100 R14: 0000000000000000 R15: 0000000000001000 FS: 0000555585650500(0000) GS:ffff88808d28f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f8b725f168 CR3: 0000000042da1000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400