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. ======================================================= JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. loop0: detected capacity change from 32768 to 32767 (syz.0.0,5341,0):ocfs2_extend_trans:457 ERROR: status = -30 (syz.0.0,5341,0):ocfs2_truncate_rec:5454 ERROR: status = -30 (syz.0.0,5341,0):ocfs2_remove_extent:5601 ERROR: status = -30 (syz.0.0,5341,0):__ocfs2_remove_xattr_range:786 ERROR: status = -30 (syz.0.0,5341,0):ocfs2_xattr_shrink_size:840 ERROR: status = -30 (syz.0.0,5341,0):__ocfs2_journal_access:724 ERROR: Error -30 getting 1 access to buffer! (syz.0.0,5341,0):ocfs2_xa_prepare_entry:2182 ERROR: status = -30 (syz.0.0,5341,0):ocfs2_xa_set:2285 ERROR: status = -30 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 UID: 0 PID: 5341 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:jbd2_journal_dirty_metadata+0x4a/0xd30 fs/jbd2/transaction.c:1520 Code: 00 fc ff df e8 67 7e 27 ff 4c 89 fd 48 c1 ed 03 42 80 7c 35 00 00 74 08 4c 89 ff e8 50 62 94 ff 49 8b 1f 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 37 62 94 ff 48 89 1c 24 4c 8b 2b RSP: 0018:ffffc9000dc4ebc0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88801fd10000 RDX: 0000000000000000 RSI: ffff8880472a2910 RDI: ffff88801ccb8b58 RBP: 1ffff1100399716b R08: ffffffff90304df7 R09: 1ffffffff20609be R10: dffffc0000000000 R11: fffffbfff20609bf R12: dffffc0000000000 R13: 1ffff92001b89d94 R14: dffffc0000000000 R15: ffff88801ccb8b58 FS: 00007fc99b1dc6c0(0000) GS:ffff88808c891000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c619677c90 CR3: 00000000127e1000 CR4: 0000000000352ef0 Call Trace: ocfs2_journal_dirty+0x130/0x700 fs/ocfs2/journal.c:831 ocfs2_xa_journal_dirty fs/ocfs2/xattr.c:1483 [inline] ocfs2_xa_set+0x15e3/0x2ec0 fs/ocfs2/xattr.c:2294 ocfs2_xattr_block_set+0x3e0/0x33c0 fs/ocfs2/xattr.c:3016 __ocfs2_xattr_set_handle+0x6b3/0xf50 fs/ocfs2/xattr.c:3418 ocfs2_xattr_set+0xf3f/0x13e0 fs/ocfs2/xattr.c:3681 __vfs_setxattr+0x43c/0x480 fs/xattr.c:218 __vfs_setxattr_noperm+0x12d/0x660 fs/xattr.c:252 vfs_setxattr+0x163/0x360 fs/xattr.c:339 do_setxattr fs/xattr.c:654 [inline] filename_setxattr+0x296/0x630 fs/xattr.c:682 path_setxattrat+0x3eb/0x440 fs/xattr.c:726 __do_sys_setxattr fs/xattr.c:760 [inline] __se_sys_setxattr fs/xattr.c:756 [inline] __x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:756 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc99a39ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc99b1dbfe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007fc99a616090 RCX: 00007fc99a39ce59 RDX: 0000200000000280 RSI: 0000200000000140 RDI: 0000200000000100 RBP: 00007fc99a432d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc99a616128 R14: 00007fc99a616090 R15: 00007ffd0d7b0728 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:jbd2_journal_dirty_metadata+0x4a/0xd30 fs/jbd2/transaction.c:1520 Code: 00 fc ff df e8 67 7e 27 ff 4c 89 fd 48 c1 ed 03 42 80 7c 35 00 00 74 08 4c 89 ff e8 50 62 94 ff 49 8b 1f 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 37 62 94 ff 48 89 1c 24 4c 8b 2b RSP: 0018:ffffc9000dc4ebc0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88801fd10000 RDX: 0000000000000000 RSI: ffff8880472a2910 RDI: ffff88801ccb8b58 RBP: 1ffff1100399716b R08: ffffffff90304df7 R09: 1ffffffff20609be R10: dffffc0000000000 R11: fffffbfff20609bf R12: dffffc0000000000 R13: 1ffff92001b89d94 R14: dffffc0000000000 R15: ffff88801ccb8b58 FS: 00007fc99b1dc6c0(0000) GS:ffff88808c891000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000127e1000 CR4: 0000000000352ef0 ---------------- Code disassembly (best guess): 0: 00 fc add %bh,%ah 2: ff lcall (bad) 3: df e8 fucomip %st(0),%st 5: 67 7e 27 addr32 jle 0x2f 8: ff 4c 89 fd decl -0x3(%rcx,%rcx,4) c: 48 c1 ed 03 shr $0x3,%rbp 10: 42 80 7c 35 00 00 cmpb $0x0,0x0(%rbp,%r14,1) 16: 74 08 je 0x20 18: 4c 89 ff mov %r15,%rdi 1b: e8 50 62 94 ff call 0xff946270 20: 49 8b 1f mov (%r15),%rbx 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 df mov %rbx,%rdi 34: e8 37 62 94 ff call 0xff946270 39: 48 89 1c 24 mov %rbx,(%rsp) 3d: 4c 8b 2b mov (%rbx),%r13