------------[ cut here ]------------ WARNING: CPU: 1 PID: 6697 at kernel/workqueue.c:1441 __queue_work+0xddc/0xf90 Modules linked in: CPU: 1 PID: 6697 Comm: syz-executor Not tainted 6.1.110-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:__queue_work+0xddc/0xf90 kernel/workqueue.c:1441 Code: 8b 3c 24 e8 46 a0 88 00 e9 d9 fc ff ff e8 6c 1e 31 00 89 ee 48 c7 c7 80 99 1d 8d e8 5e 20 0b 03 e9 1e fc ff ff e8 54 1e 31 00 <0f> 0b 48 83 c4 50 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 3e 1e 31 00 RSP: 0018:ffffc900001e0af8 EFLAGS: 00010046 RAX: ffffffff815990ec RBX: 00000000000b0012 RCX: ffff888076e08000 RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000 RBP: 0000000000010000 R08: ffffffff815a7e95 R09: fffffbfff1d33c96 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: dffffc0000000000 R14: 0000000000000008 R15: ffff888074f43000 FS: 0000555570655500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f10a9e656c0 CR3: 000000007e5c3000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504 expire_timers kernel/time/timer.c:1544 [inline] __run_timers+0x6a8/0x890 kernel/time/timer.c:1820 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571 __do_softirq kernel/softirq.c:605 [inline] invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:debug_lockdep_rcu_enabled+0x0/0x30 kernel/rcu/update.c:279 Code: 6d 38 f3 03 00 75 e7 48 c7 c7 e0 01 0c 8b 48 c7 c6 00 26 0c 8b e8 f0 c0 ab f6 0f 0b eb d0 cc cc cc cc cc cc cc cc cc cc cc cc <31> c0 83 3d a7 04 f3 03 00 74 1d 83 3d 32 38 f3 03 00 74 14 65 48 RSP: 0018:ffffc900030ff4a8 EFLAGS: 00000282 RAX: ffffffff81ecd799 RBX: ffff88801c21b310 RCX: ffff888076e08000 RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff88801c21b310 RBP: ffffc900030ff870 R08: ffffffff81eceb90 R09: ffffed1003843662 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802d7e34e0 R13: 0000000000000000 R14: ffff88801ef31680 R15: 80000000677d1007 rcu_read_unlock include/linux/rcupdate.h:820 [inline] page_ext_put+0x17/0xb0 mm/page_ext.c:182 page_table_check_pte_set include/linux/page_table_check.h:83 [inline] set_pte_at arch/x86/include/asm/pgtable.h:1009 [inline] copy_present_pte mm/memory.c:1000 [inline] copy_pte_range mm/memory.c:1091 [inline] copy_pmd_range mm/memory.c:1177 [inline] copy_pud_range mm/memory.c:1214 [inline] copy_p4d_range mm/memory.c:1238 [inline] copy_page_range+0x2d50/0x4660 mm/memory.c:1336 dup_mmap kernel/fork.c:696 [inline] dup_mm kernel/fork.c:1540 [inline] copy_mm+0xf42/0x1990 kernel/fork.c:1589 copy_process+0x19d5/0x4060 kernel/fork.c:2267 kernel_clone+0x222/0x920 kernel/fork.c:2682 __do_sys_clone kernel/fork.c:2823 [inline] __se_sys_clone kernel/fork.c:2807 [inline] __x64_sys_clone+0x231/0x280 kernel/fork.c:2807 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f10a9174753 Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007ffea68aef58 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f10a9174753 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 00005555706557d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000000449ae R14: 00000000000448c8 R15: 00007ffea68af0e0 ---------------- Code disassembly (best guess): 0: 6d insl (%dx),%es:(%rdi) 1: 38 f3 cmp %dh,%bl 3: 03 00 add (%rax),%eax 5: 75 e7 jne 0xffffffee 7: 48 c7 c7 e0 01 0c 8b mov $0xffffffff8b0c01e0,%rdi e: 48 c7 c6 00 26 0c 8b mov $0xffffffff8b0c2600,%rsi 15: e8 f0 c0 ab f6 call 0xf6abc10a 1a: 0f 0b ud2 1c: eb d0 jmp 0xffffffee 1e: cc int3 1f: cc int3 20: cc int3 21: cc int3 22: cc int3 23: cc int3 24: cc int3 25: cc int3 26: cc int3 27: cc int3 28: cc int3 29: cc int3 * 2a: 31 c0 xor %eax,%eax <-- trapping instruction 2c: 83 3d a7 04 f3 03 00 cmpl $0x0,0x3f304a7(%rip) # 0x3f304da 33: 74 1d je 0x52 35: 83 3d 32 38 f3 03 00 cmpl $0x0,0x3f33832(%rip) # 0x3f3386e 3c: 74 14 je 0x52 3e: 65 gs 3f: 48 rex.W