loop4: detected capacity change from 0 to 14901 read_mapping_page failed! jfs_mount: diMount failed w/rc = -5 general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 1 PID: 20948 Comm: syz-executor.4 Not tainted 6.1.55-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 RIP: 0010:diFree+0x265/0x2fb0 fs/jfs/jfs_imap.c:872 Code: 31 f6 e8 5e 06 de fe 4c 8b 7c 24 08 49 c1 ef 0c 48 89 5c 24 18 4c 8d 73 04 4d 89 f4 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 04 84 c0 0f 85 2c 1d 00 00 41 8b 1e 89 df 44 89 fe e8 RSP: 0018:ffffc90004e67800 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000007 RCX: 0000000000000000 RDX: 0000000000000018 RSI: 0000000000000000 RDI: ffffc90004e679f8 RBP: ffffc90004e67a70 R08: dffffc0000000000 R09: ffffc90004e679e0 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 R13: ffff8880366e1200 R14: 000000000000000b R15: 0000000000000000 FS: 00007fce207196c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c017c91000 CR3: 0000000080944000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: jfs_evict_inode+0x329/0x440 fs/jfs/inode.c:156 evict+0x2a4/0x620 fs/inode.c:664 jfs_mount+0x532/0x830 fs/jfs/jfs_mount.c:203 jfs_fill_super+0x598/0xc40 fs/jfs/super.c:556 mount_bdev+0x2c9/0x3f0 fs/super.c:1432 legacy_get_tree+0xeb/0x180 fs/fs_context.c:632 vfs_get_tree+0x88/0x270 fs/super.c:1562 do_new_mount+0x28b/0xae0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fce1fa7e1ea 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:00007fce20718ee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fce20718f80 RCX: 00007fce1fa7e1ea RDX: 0000000020005d00 RSI: 0000000020000080 RDI: 00007fce20718f40 RBP: 0000000020005d00 R08: 00007fce20718f80 R09: 0000000000000010 R10: 0000000000000010 R11: 0000000000000202 R12: 0000000020000080 R13: 00007fce20718f40 R14: 0000000000002388 R15: 0000000020000140 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:diFree+0x265/0x2fb0 fs/jfs/jfs_imap.c:872 Code: 31 f6 e8 5e 06 de fe 4c 8b 7c 24 08 49 c1 ef 0c 48 89 5c 24 18 4c 8d 73 04 4d 89 f4 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 04 84 c0 0f 85 2c 1d 00 00 41 8b 1e 89 df 44 89 fe e8 RSP: 0018:ffffc90004e67800 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000007 RCX: 0000000000000000 RDX: 0000000000000018 RSI: 0000000000000000 RDI: ffffc90004e679f8 RBP: ffffc90004e67a70 R08: dffffc0000000000 R09: ffffc90004e679e0 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 R13: ffff8880366e1200 R14: 000000000000000b R15: 0000000000000000 FS: 00007fce207196c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f69d4ec56be CR3: 0000000080944000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 31 f6 xor %esi,%esi 2: e8 5e 06 de fe call 0xfede0665 7: 4c 8b 7c 24 08 mov 0x8(%rsp),%r15 c: 49 c1 ef 0c shr $0xc,%r15 10: 48 89 5c 24 18 mov %rbx,0x18(%rsp) 15: 4c 8d 73 04 lea 0x4(%rbx),%r14 19: 4d 89 f4 mov %r14,%r12 1c: 49 c1 ec 03 shr $0x3,%r12 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 41 0f b6 04 04 movzbl (%r12,%rax,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 2c 1d 00 00 jne 0x1d63 37: 41 8b 1e mov (%r14),%ebx 3a: 89 df mov %ebx,%edi 3c: 44 89 fe mov %r15d,%esi 3f: e8 .byte 0xe8