netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4317 at kernel/events/core.c:1978 perf_group_attach+0x396/0x450 kernel/events/core.c:1978 Modules linked in: CPU: 1 PID: 4317 Comm: syz-executor.0 Not tainted 5.10.69 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:perf_group_attach+0x396/0x450 kernel/events/core.c:1978 Code: 48 c1 e8 03 42 80 3c 20 00 75 5f 48 8b 5b 10 48 83 eb 10 48 39 dd 75 d4 5b 5d 41 5c 41 5d 41 5e e9 4f f2 f2 ff e8 4a f2 f2 ff <0f> 0b e9 b1 fd ff ff 48 c7 c7 7c 26 47 85 e8 07 2d 1e 00 e9 b9 fc RSP: 0018:ffff88806cf09ef0 EFLAGS: 00010046 RAX: 0000000080010003 RBX: ffff8880436e4000 RCX: ffffffff814c9fcf RDX: ffff88804285e500 RSI: ffffffff814ca296 RDI: ffff8880436e4220 RBP: ffff888016a7c000 R08: 0000000000000001 R09: 0000000000000003 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880414fd000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88806cf37748 FS: 0000000002f69400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001d80 CR3: 0000000016a4a000 CR4: 0000000000350ee0 Call Trace: add_event_to_ctx kernel/events/core.c:2673 [inline] __perf_install_in_context+0x246/0x2d0 kernel/events/core.c:2824 remote_function kernel/events/core.c:88 [inline] remote_function+0x11d/0x1a0 kernel/events/core.c:68 flush_smp_call_function_queue+0x1b4/0x5d0 kernel/smp.c:395 __sysvec_call_function_single+0x92/0x370 arch/x86/kernel/smp.c:248 asm_call_irq_on_stack+0x12/0x20 __run_sysvec_on_irqstack arch/x86/include/asm/irq_stack.h:37 [inline] run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:89 [inline] sysvec_call_function_single+0x7f/0xa0 arch/x86/kernel/smp.c:243 asm_sysvec_call_function_single+0x12/0x20 arch/x86/include/asm/idtentry.h:643 RIP: 0010:pte_flags arch/x86/include/asm/pgtable_types.h:474 [inline] RIP: 0010:pte_present arch/x86/include/asm/pgtable.h:767 [inline] RIP: 0010:change_pte_range mm/mprotect.c:76 [inline] RIP: 0010:change_pmd_range mm/mprotect.c:269 [inline] RIP: 0010:change_pud_range mm/mprotect.c:297 [inline] RIP: 0010:change_p4d_range mm/mprotect.c:317 [inline] RIP: 0010:change_protection_range mm/mprotect.c:342 [inline] RIP: 0010:change_protection+0xdec/0x1b10 mm/mprotect.c:365 Code: de ff 48 8b 44 24 08 48 c1 e8 03 42 80 3c 30 00 0f 85 5b 08 00 00 48 8b 44 24 08 31 ff 49 bd ff 0f 00 00 00 00 f0 ff 4c 8b 20 <4d> 21 e5 44 89 eb 81 e3 01 01 00 00 89 de e8 d1 0b de ff 85 db 0f RSP: 0018:ffff888041dbfb60 EFLAGS: 00000246 RAX: ffff8880412dad00 RBX: 00007f633b1a0000 RCX: ffffffff81618236 RDX: ffff88804285e500 RSI: ffffffff81618244 RDI: 0000000000000000 RBP: ffff888042340700 R08: 0000000000000001 R09: 0000000000000003 R10: 00007f633b1b7000 R11: 0000000000000001 R12: 0000000000000000 R13: fff0000000000fff R14: dffffc0000000000 R15: 00007f633b1b7000 mprotect_fixup+0x43b/0x8e0 mm/mprotect.c:487 do_mprotect_pkey+0x52e/0x960 mm/mprotect.c:619 __do_sys_mprotect mm/mprotect.c:644 [inline] __se_sys_mprotect mm/mprotect.c:641 [inline] __x64_sys_mprotect+0x74/0xb0 mm/mprotect.c:641 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466717 Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0a 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffb3c38b68 EFLAGS: 00000206 ORIG_RAX: 000000000000000a RAX: ffffffffffffffda RBX: 0000000000021000 RCX: 0000000000466717 RDX: 0000000000000003 RSI: 0000000000020000 RDI: 00007f633b197000 RBP: 00007fffb3c38c40 R08: 00000000ffffffff R09: 00007f633b1b6700 R10: 0000000000020022 R11: 0000000000000206 R12: 00007fffb3c38d50 R13: 00007f633b1b6700 R14: 0000000000000000 R15: 0000000000022000 irq event stamp: 3706 hardirqs last enabled at (3705): [] mod_memcg_lruvec_state include/linux/memcontrol.h:820 [inline] hardirqs last enabled at (3705): [] mod_objcg_state mm/slab.h:313 [inline] hardirqs last enabled at (3705): [] memcg_slab_post_alloc_hook+0x318/0x3f0 mm/slab.h:342 hardirqs last disabled at (3706): [] sysvec_call_function_single+0xb/0xa0 arch/x86/kernel/smp.c:243 softirqs last enabled at (3488): [] memcpy include/linux/string.h:399 [inline] softirqs last enabled at (3488): [] fpu__copy+0x173/0x550 arch/x86/kernel/fpu/core.c:241 softirqs last disabled at (3486): [] fpu__copy+0xa1/0x550 arch/x86/kernel/fpu/core.c:229 ---[ end trace b7d3d21086ba1faf ]--- ======================================================