netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 16 bytes leftover after parsing attributes in process `syz-executor.2'. watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.3:6957] Modules linked in: irq event stamp: 3494965 hardirqs last enabled at (3494964): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (3494965): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (3485064): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (3485067): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (3485067): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 6957 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 RIP: 0010:unwind_next_frame+0x15/0x1400 arch/x86/kernel/unwind_orc.c:397 Code: 4b ff ff ff e8 1c 25 0e 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 48 ba 00 00 00 00 00 fc ff df 41 57 41 56 49 89 fe 41 55 41 54 <55> 53 48 81 ec e8 00 00 00 48 c7 44 24 48 b3 8a b5 41 48 8d 5c 24 RSP: 0018:ffff8880ba107828 EFLAGS: 00000287 ORIG_RAX: ffffffffffffff13 RAX: 000000000000001d RBX: ffffffff8820008d RCX: 000000000000001e RDX: dffffc0000000000 RSI: ffff8880ba1076c0 RDI: ffff8880ba107860 RBP: ffff8880ba1078e0 R08: 0000000000000001 R09: 0000000000000001 R10: ffff8880ba1078bf R11: 0000000000074071 R12: ffff8880ba1078f8 R13: 0000000000000000 R14: ffff8880ba107860 R15: 0000000000000200 FS: 00007fd6900db700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f931c514ffc CR3: 0000000009e6d000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 kmem_cache_alloc_node_trace+0x151/0x3b0 mm/slab.c:3668 __do_kmalloc_node mm/slab.c:3688 [inline] __kmalloc_node_track_caller+0x38/0x70 mm/slab.c:3703 __kmalloc_reserve net/core/skbuff.c:137 [inline] __alloc_skb+0xae/0x560 net/core/skbuff.c:205 skb_copy+0x139/0x2f0 net/core/skbuff.c:1358 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb8a/0x1330 drivers/net/wireless/mac80211_hwsim.c:1353 mac80211_hwsim_tx_frame+0x12b/0x210 drivers/net/wireless/mac80211_hwsim.c:1556 mac80211_hwsim_beacon_tx+0x3f8/0x680 drivers/net/wireless/mac80211_hwsim.c:1595 __iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650 mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615 __tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601 tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:677 [inline] RIP: 0010:__unlock_page_memcg+0x4d/0x100 mm/memcontrol.c:1955 Code: 02 00 0f 85 b8 00 00 00 65 48 8b 04 25 c0 df 01 00 48 39 83 88 06 00 00 74 5a e8 9e d8 b1 ff 85 c0 74 09 80 3d b6 c7 6f 09 00 <74> 1e e8 ac a3 b2 ff 5b 48 c7 c2 5f c5 9e 81 be 01 00 00 00 48 c7 RSP: 0018:ffff888234c87730 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff88800ff84944 RBP: ffffea0000a344c0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: dead000000000100 R15: 00007fd690995000 page_remove_rmap+0xe5/0x120 mm/rmap.c:1297 zap_pte_range mm/memory.c:1350 [inline] zap_pmd_range mm/memory.c:1463 [inline] zap_pud_range mm/memory.c:1492 [inline] zap_p4d_range mm/memory.c:1513 [inline] unmap_page_range+0x147d/0x2c50 mm/memory.c:1534 unmap_single_vma+0x198/0x300 mm/memory.c:1579 unmap_vmas+0xa9/0x180 mm/memory.c:1609 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1016 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1037 exit_mm kernel/exit.c:549 [inline] do_exit+0xaec/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fd691b685a9 Code: Bad RIP value. RSP: 002b:00007fd6900db168 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: 0000000000000000 RBX: 00007fd691c88f80 RCX: 00007fd691b685a9 RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000005 RBP: 00007fd691bc37b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff8fed33df R14: 00007fd6900db300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60