netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.6'. watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.4:16961] Modules linked in: irq event stamp: 7209571 hardirqs last enabled at (7209570): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (7209571): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (7207192): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (7207195): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 16961 Comm: syz-executor.4 Not tainted 6.1.0-rc8-next-20221206 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__rcu_read_unlock+0xc8/0x520 Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 9f 01 00 00 8b 85 f8 03 00 00 85 c0 75 58 <65> 48 8b 1c 25 00 89 03 00 48 8d bb f4 03 00 00 48 b8 00 00 00 00 RSP: 0018:ffff88806ce09e18 EFLAGS: 00000206 RAX: 00000000006e0242 RBX: ffff8880466fb580 RCX: ffffffff812b8edf RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8762e8c7 R10: fffffbfff0ec5d18 R11: 0000000000000001 R12: ffff88806ce3a040 R13: ffff88806ce09e00 R14: 0000000000000200 R15: 1ffff1100d9c13ca FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555557e8c58 CR3: 000000000fe5e000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000602 Call Trace: ieee80211_rx_napi+0x101/0x380 ieee80211_tasklet_handler+0xd8/0x140 tasklet_action_common.constprop.0+0x208/0x2f0 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:percpu_counter_add_batch+0x5e/0x180 Code: 1f 02 48 8d 45 58 48 89 c2 48 89 44 24 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 f7 00 00 00 4c 8b 7d 58 <48> 89 df 65 45 8b 37 4d 63 e6 4d 01 ec 4c 89 e2 48 c1 fa 3f 48 89 RSP: 0018:ffff8880465c76b8 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000020 RCX: 1ffffffff0f376f8 RDX: 1ffff11002cb22af RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffff888016591520 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000fffffef1 R11: 0000000000000001 R12: ffffffff85d08c50 R13: fffffffffffffef1 R14: ffff888016591520 R15: 0000607f92e1669c unmap_page_range+0xdff/0x2c10 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x680 mmput+0xd5/0x390 do_exit+0x99b/0x2720 do_group_exit+0xd4/0x2a0 get_signal+0x21b7/0x22f0 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f47d72dbb19 Code: Unable to access opcode bytes at 0x7f47d72dbaef. RSP: 002b:00007f47d4851218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f47d73eef68 RCX: 00007f47d72dbb19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f47d73eef68 RBP: 00007f47d73eef60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f47d73eef6c R13: 00007fffa2d5448f R14: 00007f47d4851300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess): 0: b8 00 00 00 00 mov $0x0,%eax 5: 00 fc add %bh,%ah 7: ff (bad) 8: df 48 89 fisttps -0x77(%rax) b: fa cli c: 48 c1 ea 03 shr $0x3,%rdx 10: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 14: 84 c0 test %al,%al 16: 74 08 je 0x20 18: 3c 03 cmp $0x3,%al 1a: 0f 8e 9f 01 00 00 jle 0x1bf 20: 8b 85 f8 03 00 00 mov 0x3f8(%rbp),%eax 26: 85 c0 test %eax,%eax 28: 75 58 jne 0x82 * 2a: 65 48 8b 1c 25 00 89 mov %gs:0x38900,%rbx <-- trapping instruction 31: 03 00 33: 48 8d bb f4 03 00 00 lea 0x3f4(%rbx),%rdi 3a: 48 rex.W 3b: b8 00 00 00 00 mov $0x0,%eax