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BUG: KMSAN: uninit-value in arch_atomic_try_cmpxchg arch/x86/include/asm/atomic.h:115 [inline]
BUG: KMSAN: uninit-value in arch_atomic_fetch_xor arch/x86/include/asm/atomic.h:173 [inline]
BUG: KMSAN: uninit-value in raw_atomic_fetch_xor include/linux/atomic/atomic-arch-fallback.h:1810 [inline]
BUG: KMSAN: uninit-value in atomic_fetch_xor include/linux/atomic/atomic-instrumented.h:1046 [inline]
BUG: KMSAN: uninit-value in ___bpf_prog_run+0xd874/0xe0f0 kernel/bpf/core.c:2158
 arch_atomic_try_cmpxchg arch/x86/include/asm/atomic.h:115 [inline]
 arch_atomic_fetch_xor arch/x86/include/asm/atomic.h:173 [inline]
 raw_atomic_fetch_xor include/linux/atomic/atomic-arch-fallback.h:1810 [inline]
 atomic_fetch_xor include/linux/atomic/atomic-instrumented.h:1046 [inline]
 ___bpf_prog_run+0xd874/0xe0f0 kernel/bpf/core.c:2158
 __bpf_prog_run512+0xb5/0xe0 kernel/bpf/core.c:2238
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 bpf_prog_run_pin_on_cpu include/linux/filter.h:681 [inline]
 bpf_flow_dissect+0x12a/0x4c0 net/core/flow_dissector.c:991
 bpf_prog_test_run_flow_dissector+0x6f8/0xa30 net/bpf/test_run.c:1361
 bpf_prog_test_run+0x6b7/0xad0 kernel/bpf/syscall.c:4240
 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5649
 __do_sys_bpf kernel/bpf/syscall.c:5738 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5736 [inline]
 __x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5736
 do_syscall_64+0xd5/0x1f0
 entry_SYSCALL_64_after_hwframe+0x72/0x7a

Local variable stack created at:
 __bpf_prog_run512+0x45/0xe0 kernel/bpf/core.c:2238
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 bpf_prog_run_pin_on_cpu include/linux/filter.h:681 [inline]
 bpf_flow_dissect+0x12a/0x4c0 net/core/flow_dissector.c:991

CPU: 0 PID: 12267 Comm: syz-executor.4 Tainted: G        W          6.9.0-rc2-syzkaller-00080-gc85af715cac0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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