memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=9942 'syz-executor.0' Process accounting resumed watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.6:9948] Modules linked in: irq event stamp: 4864943 hardirqs last enabled at (4864942): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4864943): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4846466): [] irq_exit_rcu+0x11f/0x190 softirqs last disabled at (4846469): [] irq_exit_rcu+0x11f/0x190 CPU: 1 PID: 9948 Comm: syz-executor.6 Not tainted 6.2.0-rc4-next-20230118 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__orc_find+0x6f/0xf0 Code: 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 50 48 63 03 48 01 RSP: 0018:ffff88806cf095b0 EFLAGS: 00000216 RAX: 1ffffffff0c038d8 RBX: ffffffff8601c6c0 RCX: ffffffff846000ad RDX: 0000000000000000 RSI: ffffffff864795ae RDI: ffffffff8601c6c0 RBP: ffffffff8601c6c0 R08: ffffffff864795ae R09: ffffffff8646f8c8 R10: ffff88806cf09ff8 R11: 0000000000038001 R12: ffffffff8601c6c4 R13: ffffffff8601c6c0 R14: ffffffff8601c6c0 R15: dffffc0000000000 FS: 00007f278cb6d700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f278cb4c718 CR3: 0000000042f9c000 CR4: 0000000000350ee0 Call Trace: unwind_next_frame+0x2b1/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc+0x172/0x300 __create_object+0x3d/0xc40 kmem_cache_alloc_node+0x215/0x310 __alloc_skb+0x21a/0x310 skb_copy+0x13d/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x274/0x8ff irq_exit_rcu+0x11f/0x190 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:lock_acquire.part.0+0x14f/0x340 Code: 87 84 48 83 c4 28 e8 70 4a 16 03 b8 ff ff ff ff 65 0f c1 05 c3 5c d6 7e 83 f8 01 0f 85 9f 01 00 00 48 85 ed 0f 85 90 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7 RSP: 0018:ffff8880437a6f38 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff110086f4de9 RCX: 00000000000000ae RDX: 1ffff11001bed7db RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000200 R08: 0000000000000000 R09: ffffffff87659957 R10: fffffbfff0ecb32a R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffffffff856bdd00 fs_reclaim_acquire+0x121/0x170 __kmem_cache_alloc_node+0x41/0x2f0 __kmalloc_node_track_caller+0x43/0xb0 kvasprintf+0xbe/0x160 kvasprintf_const+0x64/0x1a0 kobject_set_name_vargs+0x5a/0x160 dev_set_name+0xbf/0x100 wiphy_new_nm+0x810/0x1fb0 ieee80211_alloc_hw_nm+0x468/0x22a0 mac80211_hwsim_new_radio+0x1ec/0x48b0 hwsim_new_radio_nl+0x9ad/0x1070 genl_family_rcv_msg_doit.isra.0+0x1ee/0x2e0 genl_rcv_msg+0x503/0x7e0 netlink_rcv_skb+0x15d/0x450 genl_rcv+0x28/0x40 netlink_unicast+0x552/0x800 netlink_sendmsg+0x923/0xe20 sock_sendmsg+0x1b6/0x200 ____sys_sendmsg+0x74e/0x980 ___sys_sendmsg+0x110/0x1b0 __sys_sendmsg+0xf7/0x1d0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f278f5f7b19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f278cb6d188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f278f70af60 RCX: 00007f278f5f7b19 RDX: 0000000000000000 RSI: 0000000020007ec0 RDI: 0000000000000003 RBP: 00007f278f651f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffceb72d93f R14: 00007f278cb6d300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.2.0-rc4-next-20230118 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc90 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 e6 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 ce 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e4 00 00 RSP: 0018:ffff88806ce09a30 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff844484fb RDX: fffffbfff0b49135 RSI: 0000000000000004 RDI: ffffffff85a489a0 RBP: ffffffff85a489a0 R08: 0000000000000000 R09: ffffffff85a489a3 R10: fffffbfff0b49134 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b49134 R14: 0000000000000001 R15: 1ffff1100d9c1347 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000560709df1648 CR3: 000000000e11a000 CR4: 0000000000350ef0 Call Trace: do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x274/0x8ff irq_exit_rcu+0x11f/0x190 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0xf/0x20 Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d e3 ff 3f 00 fb f4 e9 bf 23 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffffffff85407e38 EFLAGS: 00000206 RAX: 00000000000d4b21 RBX: 0000000000000000 RCX: ffffffff84426e82 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffffff8542a800 R08: 0000000000000001 R09: ffff88806ce34f83 R10: ffffed100d9c69f0 R11: 0000000000000001 R12: fffffbfff0a85500 R13: ffffffff85d10e10 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x30d/0x3e0 cpu_startup_entry+0x18/0x20 rest_init+0x164/0x290 arch_call_rest_init+0x13/0x2c start_kernel+0x4a2/0x4c7 secondary_startup_64_no_verify+0xe0/0xeb ---------------- Code disassembly (best guess): 0: 72 4d jb 0x4f 2: 4c 89 e0 mov %r12,%rax 5: 48 29 e8 sub %rbp,%rax 8: 48 89 c2 mov %rax,%rdx b: 48 c1 e8 3f shr $0x3f,%rax f: 48 c1 fa 02 sar $0x2,%rdx 13: 48 01 d0 add %rdx,%rax 16: 48 d1 f8 sar %rax 19: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx 1e: 48 89 d8 mov %rbx,%rax 21: 48 c1 e8 03 shr $0x3,%rax 25: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx * 2a: 48 89 d8 mov %rbx,%rax <-- trapping instruction 2d: 83 e0 07 and $0x7,%eax 30: 83 c0 03 add $0x3,%eax 33: 38 d0 cmp %dl,%al 35: 7c 04 jl 0x3b 37: 84 d2 test %dl,%dl 39: 75 50 jne 0x8b 3b: 48 63 03 movslq (%rbx),%rax 3e: 48 rex.W 3f: 01 .byte 0x1