read_mapping_page failed! diRead: diIAGRead returned -5 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] CPU: 1 UID: 0 PID: 7672 Comm: syz.2.151 Not tainted 6.16.0-rc6-syzkaller-00002-g155a3c003e55 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:write_special_inodes fs/jfs/jfs_logmgr.c:208 [inline] RIP: 0010:jfs_flush_journal+0x7f8/0xed0 fs/jfs/jfs_logmgr.c:1573 Code: 80 b8 fe 4d 8d 77 f0 4c 89 f0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 f7 e8 26 17 e3 fe 4d 8b 26 49 83 c4 30 4c 89 e0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 e7 e8 0a 17 e3 fe 49 8b 3c 24 e8 81 80 b8 RSP: 0018:ffffc9000365fa60 EFLAGS: 00010206 RAX: 0000000000000006 RBX: dffffc0000000000 RCX: 0000000000080000 RDX: ffffc9000c8dd000 RSI: 000000000000523d RDI: 000000000000523e RBP: ffffc9000365fba0 R08: ffffc9000365f9bf R09: 0000000000000000 R10: ffffc9000365f848 R11: fffff520006cbf38 R12: 0000000000000030 R13: ffff88807e0ce9a8 R14: ffff8880786e8628 R15: ffff8880786e8638 FS: 00007f75517ba6c0(0000) GS:ffff888125d4f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0fbd94e000 CR3: 000000007607c000 CR4: 00000000003526f0 Call Trace: jfs_umount+0x178/0x3c0 fs/jfs/jfs_umount.c:58 jfs_fill_super+0x9da/0xd90 fs/jfs/super.c:567 get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1681 vfs_get_tree+0x92/0x2b0 fs/super.c:1804 do_new_mount+0x24a/0xa40 fs/namespace.c:3902 do_mount fs/namespace.c:4239 [inline] __do_sys_mount fs/namespace.c:4450 [inline] __se_sys_mount+0x317/0x410 fs/namespace.c:4427 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f75509900ca Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f75517b9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f75517b9ef0 RCX: 00007f75509900ca RDX: 0000200000000080 RSI: 0000200000000000 RDI: 00007f75517b9eb0 RBP: 0000200000000080 R08: 00007f75517b9ef0 R09: 0000000002010880 R10: 0000000002010880 R11: 0000000000000246 R12: 0000200000000000 R13: 00007f75517b9eb0 R14: 0000000000006174 R15: 0000200000007400 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:write_special_inodes fs/jfs/jfs_logmgr.c:208 [inline] RIP: 0010:jfs_flush_journal+0x7f8/0xed0 fs/jfs/jfs_logmgr.c:1573 Code: 80 b8 fe 4d 8d 77 f0 4c 89 f0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 f7 e8 26 17 e3 fe 4d 8b 26 49 83 c4 30 4c 89 e0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 e7 e8 0a 17 e3 fe 49 8b 3c 24 e8 81 80 b8 RSP: 0018:ffffc9000365fa60 EFLAGS: 00010206 RAX: 0000000000000006 RBX: dffffc0000000000 RCX: 0000000000080000 RDX: ffffc9000c8dd000 RSI: 000000000000523d RDI: 000000000000523e RBP: ffffc9000365fba0 R08: ffffc9000365f9bf R09: 0000000000000000 R10: ffffc9000365f848 R11: fffff520006cbf38 R12: 0000000000000030 R13: ffff88807e0ce9a8 R14: ffff8880786e8628 R15: ffff8880786e8638 FS: 00007f75517ba6c0(0000) GS:ffff888125c4f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0fbd96c000 CR3: 000000007607c000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 80 b8 fe 4d 8d 77 f0 cmpb $0xf0,0x778d4dfe(%rax) 7: 4c 89 f0 mov %r14,%rax a: 48 c1 e8 03 shr $0x3,%rax e: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) 12: 74 08 je 0x1c 14: 4c 89 f7 mov %r14,%rdi 17: e8 26 17 e3 fe call 0xfee31742 1c: 4d 8b 26 mov (%r14),%r12 1f: 49 83 c4 30 add $0x30,%r12 23: 4c 89 e0 mov %r12,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 e7 mov %r12,%rdi 33: e8 0a 17 e3 fe call 0xfee31742 38: 49 8b 3c 24 mov (%r12),%rdi 3c: e8 .byte 0xe8 3d: 81 .byte 0x81 3e: 80 .byte 0x80 3f: b8 .byte 0xb8