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: 1 UID: 0 PID: 6284 Comm: syz.2.104 Not tainted 6.10.0-syzkaller-12084-g28bbe4ea686a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:dtInsertEntry+0xd0c/0x1780 fs/jfs/jfs_dtree.c:3713 Code: 83 e6 02 31 ff e8 c4 2a 71 fe 83 e3 02 75 3a e8 ba 27 71 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:ffffc90004937060 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000000000040000 RDX: dffffc0000000000 RSI: 0000000000003570 RDI: 0000000000003571 RBP: ffffc90004937210 R08: ffffffff83225b1c R09: 1ffff1100e1f3a6a R10: dffffc0000000000 R11: ffffed100e1f3a6b R12: ffff888070f9d5e8 R13: dffffc0000000000 R14: dffffc0000000000 R15: 000000000000000a FS: 00007f3c3c2256c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc12e144440 CR3: 0000000063242000 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/0xbb0 fs/jfs/namei.c:137 lookup_open fs/namei.c:3578 [inline] open_last_lookups fs/namei.c:3647 [inline] path_openat+0x1a9a/0x3470 fs/namei.c:3883 do_filp_open+0x235/0x490 fs/namei.c:3913 do_sys_openat2+0x13e/0x1d0 fs/open.c:1416 do_sys_open fs/open.c:1431 [inline] __do_sys_openat fs/open.c:1447 [inline] __se_sys_openat fs/open.c:1442 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1442 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: 0033:0x7f3c3b375f19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3c3c225048 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f3c3b505f60 RCX: 00007f3c3b375f19 RDX: 000000000000275a RSI: 00000000200002c0 RDI: ffffffffffffff9c RBP: 00007f3c3b3e4e68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f3c3b505f60 R15: 00007fffac4d2138 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:dtInsertEntry+0xd0c/0x1780 fs/jfs/jfs_dtree.c:3713 Code: 83 e6 02 31 ff e8 c4 2a 71 fe 83 e3 02 75 3a e8 ba 27 71 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:ffffc90004937060 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000000000040000 RDX: dffffc0000000000 RSI: 0000000000003570 RDI: 0000000000003571 RBP: ffffc90004937210 R08: ffffffff83225b1c R09: 1ffff1100e1f3a6a R10: dffffc0000000000 R11: ffffed100e1f3a6b R12: ffff888070f9d5e8 R13: dffffc0000000000 R14: dffffc0000000000 R15: 000000000000000a FS: 00007f3c3c2256c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3c3c1c1fa8 CR3: 0000000063242000 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 c4 2a 71 fe call 0xfe712ace a: 83 e3 02 and $0x2,%ebx d: 75 3a jne 0x49 f: e8 ba 27 71 fe call 0xfe7127ce 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