------------[ cut here ]------------ WARNING: CPU: 1 PID: 6966 at kernel/trace/bpf_trace.c:1861 get_bpf_raw_tp_regs kernel/trace/bpf_trace.c:1861 [inline] WARNING: CPU: 1 PID: 6966 at kernel/trace/bpf_trace.c:1861 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1934 [inline] WARNING: CPU: 1 PID: 6966 at kernel/trace/bpf_trace.c:1861 bpf_get_stack_raw_tp+0x1bc/0x220 kernel/trace/bpf_trace.c:1931 Modules linked in: CPU: 1 UID: 0 PID: 6966 Comm: syz.1.37 Not tainted 6.15.0-rc4-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025 RIP: 0010:get_bpf_raw_tp_regs kernel/trace/bpf_trace.c:1861 [inline] RIP: 0010:____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1934 [inline] RIP: 0010:bpf_get_stack_raw_tp+0x1bc/0x220 kernel/trace/bpf_trace.c:1931 Code: 14 1f 00 65 ff 0d 64 24 ab 10 4c 63 e0 4c 89 e0 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 95 92 f4 ff 90 <0f> 0b 90 65 ff 0d 3a 24 ab 10 49 c7 c4 f0 ff ff ff eb d0 e8 7c 92 RSP: 0018:ffffc90003f965b8 EFLAGS: 00010293 RAX: ffffffff81cb2c3b RBX: 0000000000000000 RCX: ffff8880333ebc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000fffffffc RBP: ffffc90003f965f0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffffa0003c08 R12: ffff8880b8930e88 R13: 0000000000000003 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f09689b36c0(0000) GS:ffff8881261cc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002000000f6000 CR3: 0000000029092000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_prog_ec3b2eefa702d8d3+0x43/0x47 bpf_dispatcher_nop_func include/linux/bpf.h:1316 [inline] __bpf_prog_run include/linux/filter.h:718 [inline] bpf_prog_run include/linux/filter.h:725 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2363 [inline] bpf_trace_run3+0x295/0x4e0 kernel/trace/bpf_trace.c:2405 __bpf_trace_mmap_lock_acquire_returned+0x13b/0x190 include/trace/events/mmap_lock.h:47 __traceiter_mmap_lock_acquire_returned+0x84/0xe0 include/trace/events/mmap_lock.h:47 __do_trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:47 [inline] trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:47 [inline] __mmap_lock_do_trace_acquire_returned+0x185/0x1e0 mm/mmap_lock.c:35 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline] mmap_read_trylock include/linux/mmap_lock.h:204 [inline] stack_map_get_build_id_offset+0x5ca/0x6c0 kernel/bpf/stackmap.c:157 __bpf_get_stack+0x9b0/0xa60 kernel/bpf/stackmap.c:483 ____bpf_get_stack kernel/bpf/stackmap.c:499 [inline] bpf_get_stack+0x33/0x50 kernel/bpf/stackmap.c:496 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1941 [inline] bpf_get_stack_raw_tp+0x195/0x220 kernel/trace/bpf_trace.c:1931 bpf_prog_ec3b2eefa702d8d3+0x43/0x47 bpf_dispatcher_nop_func include/linux/bpf.h:1316 [inline] __bpf_prog_run include/linux/filter.h:718 [inline] bpf_prog_run include/linux/filter.h:725 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2363 [inline] bpf_trace_run3+0x295/0x4e0 kernel/trace/bpf_trace.c:2405 __bpf_trace_mmap_lock_acquire_returned+0x13b/0x190 include/trace/events/mmap_lock.h:47 __traceiter_mmap_lock_acquire_returned+0x84/0xe0 include/trace/events/mmap_lock.h:47 __do_trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:47 [inline] trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:47 [inline] __mmap_lock_do_trace_acquire_returned+0x185/0x1e0 mm/mmap_lock.c:35 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline] mmap_read_trylock include/linux/mmap_lock.h:204 [inline] stack_map_get_build_id_offset+0x5ca/0x6c0 kernel/bpf/stackmap.c:157 __bpf_get_stack+0x9b0/0xa60 kernel/bpf/stackmap.c:483 ____bpf_get_stack kernel/bpf/stackmap.c:499 [inline] bpf_get_stack+0x33/0x50 kernel/bpf/stackmap.c:496 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1941 [inline] bpf_get_stack_raw_tp+0x195/0x220 kernel/trace/bpf_trace.c:1931 bpf_prog_ec3b2eefa702d8d3+0x43/0x47 bpf_dispatcher_nop_func include/linux/bpf.h:1316 [inline] __bpf_prog_run include/linux/filter.h:718 [inline] bpf_prog_run include/linux/filter.h:725 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2363 [inline] bpf_trace_run3+0x295/0x4e0 kernel/trace/bpf_trace.c:2405 __bpf_trace_mmap_lock_acquire_returned+0x13b/0x190 include/trace/events/mmap_lock.h:47 __traceiter_mmap_lock_acquire_returned+0x84/0xe0 include/trace/events/mmap_lock.h:47 __do_trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:47 [inline] trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:47 [inline] __mmap_lock_do_trace_acquire_returned+0x185/0x1e0 mm/mmap_lock.c:35 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline] mmap_read_trylock include/linux/mmap_lock.h:204 [inline] stack_map_get_build_id_offset+0x5ca/0x6c0 kernel/bpf/stackmap.c:157 __bpf_get_stack+0x9b0/0xa60 kernel/bpf/stackmap.c:483 ____bpf_get_stack kernel/bpf/stackmap.c:499 [inline] bpf_get_stack+0x33/0x50 kernel/bpf/stackmap.c:496 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1941 [inline] bpf_get_stack_raw_tp+0x195/0x220 kernel/trace/bpf_trace.c:1931 bpf_prog_ec3b2eefa702d8d3+0x43/0x47 bpf_dispatcher_nop_func include/linux/bpf.h:1316 [inline] __bpf_prog_run include/linux/filter.h:718 [inline] bpf_prog_run include/linux/filter.h:725 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2363 [inline] bpf_trace_run3+0x295/0x4e0 kernel/trace/bpf_trace.c:2405 __bpf_trace_mmap_lock_acquire_returned+0x13b/0x190 include/trace/events/mmap_lock.h:47 __traceiter_mmap_lock_acquire_returned+0x84/0xe0 include/trace/events/mmap_lock.h:47 __do_trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:47 [inline] trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:47 [inline] __mmap_lock_do_trace_acquire_returned+0x185/0x1e0 mm/mmap_lock.c:35 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline] mmap_read_trylock include/linux/mmap_lock.h:204 [inline] get_mmap_lock_carefully mm/memory.c:6346 [inline] lock_mm_and_find_vma+0x21a/0x300 mm/memory.c:6406 do_user_addr_fault+0x331/0x1390 arch/x86/mm/fault.c:1360 handle_page_fault arch/x86/mm/fault.c:1480 [inline] exc_page_fault+0x68/0x110 arch/x86/mm/fault.c:1538 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:fault_in_readable+0xd3/0x160 mm/gup.c:2241 Code: e3 62 b8 ff 4d 89 f4 49 81 cc ff 0f 00 00 4d 89 f7 49 01 dc 49 81 e4 00 f0 ff ff 4d 39 e6 77 44 e8 c2 62 b8 ff 4d 39 e7 74 47 <41> 8a 07 88 44 24 07 49 81 c7 00 10 00 00 4d 39 e7 74 07 e8 a5 62 RSP: 0018:ffffc90003f97ad0 EFLAGS: 00050287 RAX: ffffffff82075c0e RBX: 0000000000001000 RCX: ffff8880333ebc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffff8880333ebc00 R09: 0000000000000002 R10: 0000000000000001 R11: 0000000000000000 R12: 00002000000f7000 R13: 00000000000f6000 R14: 00002000000f6000 R15: 00002000000f6000 fault_in_iov_iter_readable+0x1b4/0x2f0 lib/iov_iter.c:94 generic_perform_write+0x7cc/0x910 mm/filemap.c:4152 shmem_file_write_iter+0xf8/0x120 mm/shmem.c:3464 new_sync_write fs/read_write.c:591 [inline] vfs_write+0x548/0xa90 fs/read_write.c:684 ksys_write+0x145/0x250 fs/read_write.c:736 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0967b8e169 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:00007f09689b3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f0967db5fa0 RCX: 00007f0967b8e169 RDX: 00000000002a979d RSI: 0000200000000000 RDI: 0000000000000003 RBP: 00007f0967c10a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0967db5fa0 R15: 00007ffc6df5c1c8 ---------------- Code disassembly (best guess): 0: e3 62 jrcxz 0x64 2: b8 ff 4d 89 f4 mov $0xf4894dff,%eax 7: 49 81 cc ff 0f 00 00 or $0xfff,%r12 e: 4d 89 f7 mov %r14,%r15 11: 49 01 dc add %rbx,%r12 14: 49 81 e4 00 f0 ff ff and $0xfffffffffffff000,%r12 1b: 4d 39 e6 cmp %r12,%r14 1e: 77 44 ja 0x64 20: e8 c2 62 b8 ff call 0xffb862e7 25: 4d 39 e7 cmp %r12,%r15 28: 74 47 je 0x71 * 2a: 41 8a 07 mov (%r15),%al <-- trapping instruction 2d: 88 44 24 07 mov %al,0x7(%rsp) 31: 49 81 c7 00 10 00 00 add $0x1000,%r15 38: 4d 39 e7 cmp %r12,%r15 3b: 74 07 je 0x44 3d: e8 .byte 0xe8 3e: a5 movsl %ds:(%rsi),%es:(%rdi) 3f: 62 .byte 0x62