RSP: 002b:00007fba91f06028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fba93f35fa0 RCX: 00007fba93cae019 RDX: 0000000000000014 RSI: 0000200000000200 RDI: 0000000000000004 RBP: 00007fba91f06090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fba93f36038 R14: 00007fba93f35fa0 R15: 00007ffeab0b2678 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] CPU: 1 UID: 0 PID: 12643 Comm: syz.4.2204 Tainted: G L syzkaller #0 PREEMPT_{RT,(full)} Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:path_put+0x24/0x60 fs/namei.c:722 Code: 90 90 90 90 90 90 f3 0f 1e fa 41 56 53 48 89 fb 49 be 00 00 00 00 00 fc ff df e8 17 ea 81 ff 48 8d 7b 08 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 05 e8 e0 40 ee ff 48 8b 7b 08 e8 37 8a 03 00 48 RSP: 0018:ffffc90004cbf9c8 EFLAGS: 00010203 RAX: 0000000000000008 RBX: 000000000000003c RCX: ffff888027c5ddc0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000044 RBP: ffffc90004cbfb50 R08: ffffffff99d12fd7 R09: 0000000000000000 R10: ffffffff99d12fc0 R11: fffffbfff33a25fb R12: fffffffffffffff4 R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007fba91f066c0(0000) GS:ffff888125af2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33f63fff CR3: 0000000033888000 CR4: 00000000003526f0 DR0: 0000000000000002 DR1: 00000000000012ad DR2: 0000000000007611 DR3: 000000000000000a DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: free_trace_uprobe kernel/trace/trace_uprobe.c:374 [inline] __free_free_trace_uprobe kernel/trace/trace_uprobe.c:536 [inline] __trace_uprobe_create+0x53c/0xe40 kernel/trace/trace_uprobe.c:725 trace_probe_create+0xce/0x130 kernel/trace/trace_probe.c:2644 dyn_event_create+0x4f/0x70 kernel/trace/trace_dynevent.c:128 create_or_delete_trace_uprobe+0x65/0xa0 kernel/trace/trace_uprobe.c:739 trace_parse_run_command+0x1f3/0x380 kernel/trace/trace.c:9567 vfs_write+0x29f/0xbb0 fs/read_write.c:685 ksys_write+0x156/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x17b/0x530 arch/x86/entry/syscall_64.c:85 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fba93cae019 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fba91f06028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fba93f35fa0 RCX: 00007fba93cae019 RDX: 0000000000000014 RSI: 0000200000000200 RDI: 0000000000000004 RBP: 00007fba91f06090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fba93f36038 R14: 00007fba93f35fa0 R15: 00007ffeab0b2678 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:path_put+0x24/0x60 fs/namei.c:722 Code: 90 90 90 90 90 90 f3 0f 1e fa 41 56 53 48 89 fb 49 be 00 00 00 00 00 fc ff df e8 17 ea 81 ff 48 8d 7b 08 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 05 e8 e0 40 ee ff 48 8b 7b 08 e8 37 8a 03 00 48 RSP: 0018:ffffc90004cbf9c8 EFLAGS: 00010203 RAX: 0000000000000008 RBX: 000000000000003c RCX: ffff888027c5ddc0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000044 RBP: ffffc90004cbfb50 R08: ffffffff99d12fd7 R09: 0000000000000000 R10: ffffffff99d12fc0 R11: fffffbfff33a25fb R12: fffffffffffffff4 R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007fba91f066c0(0000) GS:ffff888125af2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33f63fff CR3: 0000000033888000 CR4: 00000000003526f0 DR0: 0000000000000002 DR1: 00000000000012ad DR2: 0000000000007611 DR3: 000000000000000a DR6: 00000000ffff0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: f3 0f 1e fa endbr64 a: 41 56 push %r14 c: 53 push %rbx d: 48 89 fb mov %rdi,%rbx 10: 49 be 00 00 00 00 00 movabs $0xdffffc0000000000,%r14 17: fc ff df 1a: e8 17 ea 81 ff call 0xff81ea36 1f: 48 8d 7b 08 lea 0x8(%rbx),%rdi 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) <-- trapping instruction 2f: 74 05 je 0x36 31: e8 e0 40 ee ff call 0xffee4116 36: 48 8b 7b 08 mov 0x8(%rbx),%rdi 3a: e8 37 8a 03 00 call 0x38a76 3f: 48 rex.W