------------[ cut here ]------------ WARNING: CPU: 1 PID: 4266 at kernel/trace/bpf_trace.c:1800 get_bpf_raw_tp_regs kernel/trace/bpf_trace.c:1800 [inline] WARNING: CPU: 1 PID: 4266 at kernel/trace/bpf_trace.c:1800 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1873 [inline] WARNING: CPU: 1 PID: 4266 at kernel/trace/bpf_trace.c:1800 bpf_get_stack_raw_tp+0x196/0x1d0 kernel/trace/bpf_trace.c:1870 Modules linked in: CPU: 1 PID: 4266 Comm: syz-executor274 Not tainted 6.1.141-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:get_bpf_raw_tp_regs kernel/trace/bpf_trace.c:1800 [inline] RIP: 0010:____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1873 [inline] RIP: 0010:bpf_get_stack_raw_tp+0x196/0x1d0 kernel/trace/bpf_trace.c:1870 Code: c8 45 31 c0 e8 8b 90 16 00 65 ff 0d 54 90 78 7e 4c 63 e0 4c 89 e0 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 fa 25 f6 ff <0f> 0b 65 ff 0d 31 90 78 7e 49 c7 c4 f0 ff ff ff eb d7 e8 e3 25 f6 RSP: 0018:ffffc90003d565f8 EFLAGS: 00010293 RAX: ffffffff818ab076 RBX: ffff8880b8f00000 RCX: ffff88802fb2bb80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000fffffffc RBP: ffffc90003d56630 R08: dffffc0000000000 R09: fffffbfff2117049 R10: fffffbfff2117049 R11: 1ffffffff2117048 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000003 R15: 0000000000000000 FS: 00007f199edb56c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000007d40d000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_prog_ec3b2eefa702d8d3+0x3a/0x3e bpf_dispatcher_nop_func include/linux/bpf.h:1001 [inline] __bpf_prog_run include/linux/filter.h:603 [inline] bpf_prog_run include/linux/filter.h:610 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2285 [inline] bpf_trace_run4+0x1f5/0x420 kernel/trace/bpf_trace.c:2326 __traceiter_mmap_lock_acquire_returned+0x8b/0xe0 include/trace/events/mmap_lock.h:52 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:52 [inline] __mmap_lock_do_trace_acquire_returned+0x29d/0x330 mm/mmap_lock.c:102 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline] mmap_read_trylock include/linux/mmap_lock.h:137 [inline] stack_map_get_build_id_offset+0x68d/0x9c0 kernel/bpf/stackmap.c:144 __bpf_get_stack+0x44d/0x4f0 kernel/bpf/stackmap.c:452 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1880 [inline] bpf_get_stack_raw_tp+0x175/0x1d0 kernel/trace/bpf_trace.c:1870 bpf_prog_ec3b2eefa702d8d3+0x3a/0x3e bpf_dispatcher_nop_func include/linux/bpf.h:1001 [inline] __bpf_prog_run include/linux/filter.h:603 [inline] bpf_prog_run include/linux/filter.h:610 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2285 [inline] bpf_trace_run4+0x1f5/0x420 kernel/trace/bpf_trace.c:2326 __traceiter_mmap_lock_acquire_returned+0x8b/0xe0 include/trace/events/mmap_lock.h:52 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:52 [inline] __mmap_lock_do_trace_acquire_returned+0x29d/0x330 mm/mmap_lock.c:102 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline] mmap_read_trylock include/linux/mmap_lock.h:137 [inline] stack_map_get_build_id_offset+0x68d/0x9c0 kernel/bpf/stackmap.c:144 __bpf_get_stack+0x44d/0x4f0 kernel/bpf/stackmap.c:452 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1880 [inline] bpf_get_stack_raw_tp+0x175/0x1d0 kernel/trace/bpf_trace.c:1870 bpf_prog_ec3b2eefa702d8d3+0x3a/0x3e bpf_dispatcher_nop_func include/linux/bpf.h:1001 [inline] __bpf_prog_run include/linux/filter.h:603 [inline] bpf_prog_run include/linux/filter.h:610 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2285 [inline] bpf_trace_run4+0x1f5/0x420 kernel/trace/bpf_trace.c:2326 __traceiter_mmap_lock_acquire_returned+0x8b/0xe0 include/trace/events/mmap_lock.h:52 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:52 [inline] __mmap_lock_do_trace_acquire_returned+0x29d/0x330 mm/mmap_lock.c:102 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline] mmap_read_trylock include/linux/mmap_lock.h:137 [inline] stack_map_get_build_id_offset+0x68d/0x9c0 kernel/bpf/stackmap.c:144 __bpf_get_stack+0x44d/0x4f0 kernel/bpf/stackmap.c:452 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1880 [inline] bpf_get_stack_raw_tp+0x175/0x1d0 kernel/trace/bpf_trace.c:1870 bpf_prog_ec3b2eefa702d8d3+0x3a/0x3e bpf_dispatcher_nop_func include/linux/bpf.h:1001 [inline] __bpf_prog_run include/linux/filter.h:603 [inline] bpf_prog_run include/linux/filter.h:610 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2285 [inline] bpf_trace_run4+0x1f5/0x420 kernel/trace/bpf_trace.c:2326 __traceiter_mmap_lock_acquire_returned+0x8b/0xe0 include/trace/events/mmap_lock.h:52 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:52 [inline] __mmap_lock_do_trace_acquire_returned+0x29d/0x330 mm/mmap_lock.c:102 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline] mmap_read_trylock include/linux/mmap_lock.h:137 [inline] get_mmap_lock_carefully mm/memory.c:5322 [inline] lock_mm_and_find_vma+0x21f/0x2f0 mm/memory.c:5384 do_user_addr_fault+0x2db/0xb10 arch/x86/mm/fault.c:1312 handle_page_fault arch/x86/mm/fault.c:1431 [inline] exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1487 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:608 RIP: 0010:do_strncpy_from_user lib/strncpy_from_user.c:41 [inline] RIP: 0010:strncpy_from_user+0x14b/0x350 lib/strncpy_from_user.c:139 Code: 4c 89 e6 e8 e7 07 52 fd 49 83 fc 07 0f 86 a1 00 00 00 4c 89 74 24 08 48 c7 44 24 10 f8 ff ff ff 45 31 ed 4c 89 3c 24 48 89 dd <4f> 8b 3c 2f 48 b8 ff fe fe fe fe fe fe fe 49 8d 1c 07 4d 89 fe 49 RSP: 0018:ffffc90003d57b50 EFLAGS: 00050246 RAX: ffffffff842ed269 RBX: ffffc90003d57c70 RCX: ffff88802fb2bb80 RDX: 0000000000000000 RSI: 000000000000007f RDI: 0000000000000007 RBP: ffffc90003d57c70 R08: ffff88802fb2bb80 R09: 0000000000000003 R10: 0000000000000002 R11: 0000000000000000 R12: 000000000000007f R13: 0000000000000000 R14: 000000000000007f R15: 0000000000000000 strncpy_from_bpfptr include/linux/bpfptr.h:85 [inline] bpf_prog_load+0x1ab/0x15a0 kernel/bpf/syscall.c:2525 __sys_bpf+0x520/0x6d0 kernel/bpf/syscall.c:5020 __do_sys_bpf kernel/bpf/syscall.c:5124 [inline] __se_sys_bpf kernel/bpf/syscall.c:5122 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5122 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f199ee159d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f199edb5218 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f199eea03f8 RCX: 00007f199ee159d9 RDX: 0000000000000090 RSI: 00002000000000c0 RDI: 0000000000000005 RBP: 00007f199eea03f0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f199ee6d07c R13: 0000200000000d40 R14: 0000200000000d80 R15: 0000200000000000 ---------------- Code disassembly (best guess): 0: 4c 89 e6 mov %r12,%rsi 3: e8 e7 07 52 fd call 0xfd5207ef 8: 49 83 fc 07 cmp $0x7,%r12 c: 0f 86 a1 00 00 00 jbe 0xb3 12: 4c 89 74 24 08 mov %r14,0x8(%rsp) 17: 48 c7 44 24 10 f8 ff movq $0xfffffffffffffff8,0x10(%rsp) 1e: ff ff 20: 45 31 ed xor %r13d,%r13d 23: 4c 89 3c 24 mov %r15,(%rsp) 27: 48 89 dd mov %rbx,%rbp * 2a: 4f 8b 3c 2f mov (%r15,%r13,1),%r15 <-- trapping instruction 2e: 48 b8 ff fe fe fe fe movabs $0xfefefefefefefeff,%rax 35: fe fe fe 38: 49 8d 1c 07 lea (%r15,%rax,1),%rbx 3c: 4d 89 fe mov %r15,%r14 3f: 49 rex.WB