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BUG: KMSAN: uninit-value in irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 include/linux/irq-entry-common.h:464
 irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 include/linux/irq-entry-common.h:464
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x82/0xa00 kernel/entry/common.c:164
 sysvec_call_function_single+0x4f/0x90 arch/x86/kernel/smp.c:267
 asm_sysvec_call_function_single+0x1f/0x30 arch/x86/include/asm/idtentry.h:704
 poll_get_entry fs/select.c:162 [inline]
 __pollwait+0x68/0x6a0 fs/select.c:223
 poll_wait include/linux/poll.h:45 [inline]
 pipe_poll+0x12a/0x710 fs/pipe.c:676
 vfs_poll include/linux/poll.h:82 [inline]
 select_poll_one fs/select.c:480 [inline]
 do_select+0x154f/0x2aa0 fs/select.c:536
 compat_core_sys_select+0x89d/0xe50 fs/select.c:1234
 do_compat_pselect+0x501/0x5b0 fs/select.c:1335
 __do_compat_sys_pselect6_time32 fs/select.c:1381 [inline]
 __se_compat_sys_pselect6_time32 fs/select.c:1372 [inline]
 __ia32_compat_sys_pselect6_time32+0x2ab/0x3d0 fs/select.c:1372
 ia32_sys_call+0x2258/0x4360 arch/x86/include/generated/asm/syscalls_32.h:309
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0x195/0x470 arch/x86/entry/syscall_32.c:307
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/syscall_32.c:332
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:370
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was created at:
 __alloc_frozen_pages_noprof+0x6fa/0x1000 mm/page_alloc.c:5244
 alloc_slab_page mm/slub.c:3278 [inline]
 allocate_slab+0x1b9/0x2090 mm/slub.c:3467
 new_slab mm/slub.c:3525 [inline]
 refill_objects+0xa74/0xce0 mm/slub.c:7272
 refill_sheaf mm/slub.c:2816 [inline]
 __pcs_replace_empty_main+0x91a/0x17e0 mm/slub.c:4652
 alloc_from_pcs mm/slub.c:4750 [inline]
 slab_alloc_node mm/slub.c:4884 [inline]
 kmem_cache_alloc_noprof+0x907/0x1250 mm/slub.c:4906
 alloc_empty_file+0x102/0x8e0 fs/file_table.c:262
 path_openat+0x9d/0x64c0 fs/namei.c:4844
 do_file_open+0x2aa/0x680 fs/namei.c:4887
 do_sys_openat2+0x163/0x370 fs/open.c:1364
 do_sys_open fs/open.c:1370 [inline]
 __do_sys_openat fs/open.c:1386 [inline]
 __se_sys_openat fs/open.c:1381 [inline]
 __x64_sys_openat+0x240/0x300 fs/open.c:1381
 x64_sys_call+0x2445/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15d/0x3c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 1 UID: 0 PID: 5566 Comm: syz-executor Tainted: G        W    L      syzkaller #0 PREEMPT(lazy) 
Tainted: [W]=WARN, [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
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