loop0: detected capacity change from 0 to 32768 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID: 5080 Comm: syz-executor307 Not tainted 6.10.0-rc4-syzkaller-00217-g35bb670d65fc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:dtInsertEntry+0xd0c/0x1780 fs/jfs/jfs_dtree.c:3713 Code: 83 e6 02 31 ff e8 f4 32 73 fe 83 e3 02 75 3a e8 ea 2f 73 fe 48 8b 9c 24 a8 00 00 00 48 83 c3 08 48 89 d8 48 c1 e8 03 4c 89 f2 <42> 0f b6 04 30 84 c0 74 3e 89 d9 80 e1 07 38 c1 7c 35 48 89 df e8 RSP: 0018:ffffc900033bf060 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff888023c79e00 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900033bf210 R08: ffffffff8322f4ac R09: 1ffff1100fdd700b R10: dffffc0000000000 R11: ffffed100fdd700c R12: ffff88807eeb82f0 R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000007 FS: 0000555557f07380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000066c7e0 CR3: 000000001975a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dtInsert+0xbf1/0x6b00 fs/jfs/jfs_dtree.c:891 jfs_create+0x7ba/0xb90 fs/jfs/namei.c:137 lookup_open fs/namei.c:3505 [inline] open_last_lookups fs/namei.c:3574 [inline] path_openat+0x1425/0x3280 fs/namei.c:3804 do_filp_open+0x235/0x490 fs/namei.c:3834 do_sys_openat2+0x13e/0x1d0 fs/open.c:1405 do_sys_open fs/open.c:1420 [inline] __do_sys_openat fs/open.c:1436 [inline] __se_sys_openat fs/open.c:1431 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1431 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff95b609639 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff49ac04a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fff49ac0688 RCX: 00007ff95b609639 RDX: 000000000000275a RSI: 0000000020000080 RDI: 00000000ffffff9c RBP: 00007ff95b682610 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff49ac0678 R14: 0000000000000001 R15: 0000000000000001 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:dtInsertEntry+0xd0c/0x1780 fs/jfs/jfs_dtree.c:3713 Code: 83 e6 02 31 ff e8 f4 32 73 fe 83 e3 02 75 3a e8 ea 2f 73 fe 48 8b 9c 24 a8 00 00 00 48 83 c3 08 48 89 d8 48 c1 e8 03 4c 89 f2 <42> 0f b6 04 30 84 c0 74 3e 89 d9 80 e1 07 38 c1 7c 35 48 89 df e8 RSP: 0018:ffffc900033bf060 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff888023c79e00 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900033bf210 R08: ffffffff8322f4ac R09: 1ffff1100fdd700b R10: dffffc0000000000 R11: ffffed100fdd700c R12: ffff88807eeb82f0 R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000007 FS: 0000555557f07380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000066c7e0 CR3: 000000001975a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 83 e6 02 and $0x2,%esi 3: 31 ff xor %edi,%edi 5: e8 f4 32 73 fe call 0xfe7332fe a: 83 e3 02 and $0x2,%ebx d: 75 3a jne 0x49 f: e8 ea 2f 73 fe call 0xfe732ffe 14: 48 8b 9c 24 a8 00 00 mov 0xa8(%rsp),%rbx 1b: 00 1c: 48 83 c3 08 add $0x8,%rbx 20: 48 89 d8 mov %rbx,%rax 23: 48 c1 e8 03 shr $0x3,%rax 27: 4c 89 f2 mov %r14,%rdx * 2a: 42 0f b6 04 30 movzbl (%rax,%r14,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 74 3e je 0x71 33: 89 d9 mov %ebx,%ecx 35: 80 e1 07 and $0x7,%cl 38: 38 c1 cmp %al,%cl 3a: 7c 35 jl 0x71 3c: 48 89 df mov %rbx,%rdi 3f: e8 .byte 0xe8