read_mapping_page failed! diRead: diIAGRead returned -5 general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] CPU: 0 PID: 8723 Comm: syz-executor.0 Not tainted 6.9.0-rc4-syzkaller-00266-g977b1ef51866 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:write_special_inodes fs/jfs/jfs_logmgr.c:208 [inline] RIP: 0010:jfs_flush_journal+0x813/0xec0 fs/jfs/jfs_logmgr.c:1573 Code: a5 fe 49 8d 5f f0 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 db da d1 fe 48 8b 1b 48 83 c3 30 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 be da d1 fe 48 8b 3b e8 b6 e9 a5 RSP: 0018:ffffc9000d47f920 EFLAGS: 00010206 RAX: 0000000000000006 RBX: 0000000000000030 RCX: 286e231a923dc400 RDX: ffffc90012c02000 RSI: 0000000000028041 RDI: 0000000000028042 RBP: ffffc9000d47fa60 R08: ffffffff81cb1e4a R09: 0000000000000000 R10: ffffc9000d47f708 R11: fffff52001a8ff0f R12: 1ffff92001a8ff30 R13: dffffc0000000000 R14: ffff888069def000 R15: ffff888026610e38 FS: 00007fdeda5546c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555594ec9938 CR3: 000000005ed56000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: jfs_umount+0x170/0x3a0 fs/jfs/jfs_umount.c:58 jfs_fill_super+0x91a/0xc50 fs/jfs/super.c:600 mount_bdev+0x20a/0x2d0 fs/super.c:1658 legacy_get_tree+0xee/0x190 fs/fs_context.c:662 vfs_get_tree+0x90/0x2a0 fs/super.c:1779 do_new_mount+0x2be/0xb40 fs/namespace.c:3352 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fded987f5aa Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fdeda553ef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fdeda553f80 RCX: 00007fded987f5aa RDX: 00000000200001c0 RSI: 0000000020000200 RDI: 00007fdeda553f40 RBP: 00000000200001c0 R08: 00007fdeda553f80 R09: 0000000000008000 R10: 0000000000008000 R11: 0000000000000202 R12: 0000000020000200 R13: 00007fdeda553f40 R14: 00000000000061ac R15: 0000000020000240 Modules linked in: ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: a5 movsl %ds:(%rsi),%es:(%rdi) 1: fe 49 8d decb -0x73(%rcx) 4: 5f pop %rdi 5: f0 48 89 d8 lock mov %rbx,%rax 9: 48 c1 e8 03 shr $0x3,%rax d: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) 12: 74 08 je 0x1c 14: 48 89 df mov %rbx,%rdi 17: e8 db da d1 fe call 0xfed1daf7 1c: 48 8b 1b mov (%rbx),%rbx 1f: 48 83 c3 30 add $0x30,%rbx 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 df mov %rbx,%rdi 34: e8 be da d1 fe call 0xfed1daf7 39: 48 8b 3b mov (%rbx),%rdi 3c: e8 .byte 0xe8 3d: b6 e9 mov $0xe9,%dh 3f: a5 movsl %ds:(%rsi),%es:(%rdi)