------------[ cut here ]------------ WARNING: CPU: 0 PID: 20409 at kernel/trace/bpf_trace.c:1411 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1483 [inline] WARNING: CPU: 0 PID: 20409 at kernel/trace/bpf_trace.c:1411 bpf_get_stack_raw_tp+0x1d3/0x220 kernel/trace/bpf_trace.c:1480 Modules linked in: CPU: 0 PID: 20409 Comm: syz.3.5666 Not tainted 5.15.176-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:get_bpf_raw_tp_regs kernel/trace/bpf_trace.c:1411 [inline] RIP: 0010:____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1483 [inline] RIP: 0010:bpf_get_stack_raw_tp+0x1d3/0x220 kernel/trace/bpf_trace.c:1480 Code: f1 45 31 c0 e8 ae 99 14 00 65 ff 0d 3f b3 78 7e 4c 63 e8 4c 89 e8 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 dd fa f5 ff <0f> 0b 65 ff 0d 1c b3 78 7e 49 c7 c5 f0 ff ff ff eb d7 e8 c6 fa f5 RSP: 0018:ffffc90002f0e790 EFLAGS: 00010283 RAX: ffffffff818a8a03 RBX: 0000000000000003 RCX: 0000000000080000 RDX: ffffc9000f34f000 RSI: 0000000000000a48 RDI: 0000000000000a49 RBP: ffffc90002f0e7d0 R08: ffffffff818a88c3 R09: fffffbfff2131421 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90002f0e7e8 R13: 0000000000000000 R14: 0000000000000900 R15: ffff8880b8e33b30 FS: 00007f5ff096b6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000051f38000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: bpf_prog_ec3b2eefa702d8d3+0x3a/0xc38 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline] bpf_trace_run4+0x1ea/0x390 kernel/trace/bpf_trace.c:1917 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:44 [inline] __mmap_lock_do_trace_acquire_returned+0x24d/0x2c0 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+0x612/0x930 kernel/bpf/stackmap.c:185 __bpf_get_stack+0x495/0x570 kernel/bpf/stackmap.c:496 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1490 [inline] bpf_get_stack_raw_tp+0x1b2/0x220 kernel/trace/bpf_trace.c:1480 bpf_prog_ec3b2eefa702d8d3+0x3a/0xc38 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline] bpf_trace_run4+0x1ea/0x390 kernel/trace/bpf_trace.c:1917 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:44 [inline] __mmap_lock_do_trace_acquire_returned+0x24d/0x2c0 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+0x612/0x930 kernel/bpf/stackmap.c:185 __bpf_get_stack+0x495/0x570 kernel/bpf/stackmap.c:496 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1490 [inline] bpf_get_stack_raw_tp+0x1b2/0x220 kernel/trace/bpf_trace.c:1480 bpf_prog_ec3b2eefa702d8d3+0x3a/0xc38 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline] bpf_trace_run4+0x1ea/0x390 kernel/trace/bpf_trace.c:1917 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:44 [inline] __mmap_lock_do_trace_acquire_returned+0x24d/0x2c0 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+0x612/0x930 kernel/bpf/stackmap.c:185 __bpf_get_stack+0x495/0x570 kernel/bpf/stackmap.c:496 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1490 [inline] bpf_get_stack_raw_tp+0x1b2/0x220 kernel/trace/bpf_trace.c:1480 bpf_prog_ec3b2eefa702d8d3+0x3a/0xc38 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline] bpf_trace_run4+0x1ea/0x390 kernel/trace/bpf_trace.c:1917 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:44 [inline] __mmap_lock_do_trace_acquire_returned+0x24d/0x2c0 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] do_user_addr_fault arch/x86/mm/fault.c:1298 [inline] handle_page_fault arch/x86/mm/fault.c:1445 [inline] exc_page_fault+0x564/0x700 arch/x86/mm/fault.c:1501 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606 RIP: 0010:do_strncpy_from_user lib/strncpy_from_user.c:41 [inline] RIP: 0010:strncpy_from_user+0x170/0x370 lib/strncpy_from_user.c:139 Code: 4c 89 ee e8 02 71 4b fd 49 83 fd 07 0f 86 a2 00 00 00 4c 89 7c 24 08 48 c7 44 24 10 f8 ff ff ff 45 31 e4 4c 89 f5 48 8b 04 24 <4e> 8b 3c 20 48 b8 ff fe fe fe fe fe fe fe 49 8d 1c 07 4d 89 fe 49 RSP: 0018:ffffc90002f0fb90 EFLAGS: 00050246 RAX: 0000000000000000 RBX: 00007ffffffff000 RCX: ffff888029741dc0 RDX: ffffc9000f34f000 RSI: 000000000000007f RDI: 0000000000000007 RBP: ffffc90002f0fcb0 R08: ffffffff843517be R09: ffffffff81d396b3 R10: 0000000000000003 R11: ffff888029741dc0 R12: 0000000000000000 R13: 000000000000007f R14: ffffc90002f0fcb0 R15: 000000000000007f strncpy_from_bpfptr include/linux/bpfptr.h:84 [inline] bpf_prog_load+0x185/0x1b60 kernel/bpf/syscall.c:2238 __sys_bpf+0x343/0x670 kernel/bpf/syscall.c:4656 __do_sys_bpf kernel/bpf/syscall.c:4760 [inline] __se_sys_bpf kernel/bpf/syscall.c:4758 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4758 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f5ff2afad29 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:00007f5ff096b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f5ff2ceafa0 RCX: 00007f5ff2afad29 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007f5ff2b76b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f5ff2ceafa0 R15: 00007fff8c37d758 ---------------- Code disassembly (best guess): 0: 4c 89 ee mov %r13,%rsi 3: e8 02 71 4b fd call 0xfd4b710a 8: 49 83 fd 07 cmp $0x7,%r13 c: 0f 86 a2 00 00 00 jbe 0xb4 12: 4c 89 7c 24 08 mov %r15,0x8(%rsp) 17: 48 c7 44 24 10 f8 ff movq $0xfffffffffffffff8,0x10(%rsp) 1e: ff ff 20: 45 31 e4 xor %r12d,%r12d 23: 4c 89 f5 mov %r14,%rbp 26: 48 8b 04 24 mov (%rsp),%rax * 2a: 4e 8b 3c 20 mov (%rax,%r12,1),%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