=====================================================
BUG: KMSAN: uninit-value in irqtime_account_irq+0x387/0x520 kernel/sched/cputime.c:71
 irqtime_account_irq+0x387/0x520 kernel/sched/cputime.c:71
 account_softirq_exit include/linux/vtime.h:147 [inline]
 __do_softirq+0x707/0x7c5 kernel/softirq.c:585
 invoke_softirq+0xa4/0x130 kernel/softirq.c:432
 __irq_exit_rcu kernel/softirq.c:637 [inline]
 irq_exit_rcu+0x76/0x130 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0xa2/0xc0 arch/x86/kernel/apic/apic.c:1097
 asm_sysvec_apic_timer_interrupt+0x12/0x20
 kmsan_metadata_is_contiguous+0x117/0x1e0
 kmsan_get_shadow_origin_ptr+0x78/0xf0 mm/kmsan/shadow.c:134
 get_shadow_origin_ptr mm/kmsan/instrumentation.c:30 [inline]
 __msan_metadata_ptr_for_load_4+0x20/0x30 mm/kmsan/instrumentation.c:65
 crc32_body lib/crc32.c:110 [inline]
 crc32_le_generic lib/crc32.c:179 [inline]
 __crc32c_le_base+0x2ac/0x1390 lib/crc32.c:202
 chksum_update+0xb2/0x130 crypto/crct10dif_generic.c:56
 crypto_shash_update+0x485/0x5d0 crypto/shash.c:131
 ext4_chksum fs/ext4/ext4.h:2452 [inline]
 ext4_inode_bitmap_csum_set+0x31c/0x730 fs/ext4/bitmap.c:51
 ext4_free_inode+0x1246/0x1b10 fs/ext4/ialloc.c:330
 ext4_evict_inode+0x28c6/0x2d20 fs/ext4/inode.c:333
 evict+0x4f4/0xdd0 fs/inode.c:664
 iput_final fs/inode.c:1744 [inline]
 iput+0xc53/0x1100 fs/inode.c:1770
 do_unlinkat+0x841/0x10a0 fs/namei.c:4225
 __do_sys_unlink fs/namei.c:4266 [inline]
 __se_sys_unlink fs/namei.c:4264 [inline]
 __ia32_sys_unlink+0xa4/0xd0 fs/namei.c:4264
 do_syscall_32_irqs_on arch/x86/entry/common.c:114 [inline]
 __do_fast_syscall_32+0x96/0xf0 arch/x86/entry/common.c:180
 do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c

Local variable regs created at:
 __bpf_prog_run32+0x84/0x180 kernel/bpf/core.c:1796
 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline]
 __bpf_prog_run include/linux/filter.h:626 [inline]
 bpf_prog_run include/linux/filter.h:633 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1988 [inline]
 bpf_trace_run1+0xda/0x310 kernel/trace/bpf_trace.c:2024

CPU: 1 PID: 3497 Comm: syz-executor.0 Not tainted 5.17.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
=====================================================