=====================================================
BUG: KMSAN: uninit-value in poly1305_blocks+0x1a9/0x5f0 lib/crypto/x86/poly1305.h:110
 poly1305_blocks+0x1a9/0x5f0 lib/crypto/x86/poly1305.h:110
 poly1305_update+0x169/0x400 lib/crypto/poly1305.c:50
 poly_hash+0x9f3/0x1a00 crypto/chacha20poly1305.c:168
 poly_genkey+0x3b6/0x450 crypto/chacha20poly1305.c:233
 chacha_encrypt crypto/chacha20poly1305.c:269 [inline]
 chachapoly_encrypt+0x48a/0x5c0 crypto/chacha20poly1305.c:284
 crypto_aead_encrypt+0xe2/0x160 crypto/aead.c:91
 tls_do_encryption net/tls/tls_sw.c:582 [inline]
 tls_push_record+0x38c7/0x5810 net/tls/tls_sw.c:819
 bpf_exec_tx_verdict+0x1a0c/0x26a0 net/tls/tls_sw.c:859
 tls_sw_sendmsg_locked net/tls/tls_sw.c:1138 [inline]
 tls_sw_sendmsg+0x3401/0x4560 net/tls/tls_sw.c:1281
 inet6_sendmsg+0x26c/0x2a0 net/ipv6/af_inet6.c:659
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg+0x145/0x3d0 net/socket.c:742
 sock_write_iter+0x3a6/0x420 net/socket.c:1195
 do_iter_readv_writev+0x9e1/0xc20 fs/read_write.c:-1
 vfs_writev+0x52a/0x1500 fs/read_write.c:1057
 do_writev+0x1b5/0x580 fs/read_write.c:1103
 __do_sys_writev fs/read_write.c:1171 [inline]
 __se_sys_writev fs/read_write.c:1168 [inline]
 __ia32_sys_writev+0x9c/0xf0 fs/read_write.c:1168
 ia32_sys_call+0x2f6a/0x4310 arch/x86/include/generated/asm/syscalls_32.h:147
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xb0/0x150 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/syscall_32.c:331
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:369
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Local variable walk created at:
 chacha_stream_xor+0x4d/0x710 crypto/chacha.c:52
 crypto_chacha_crypt+0x79/0xc0 crypto/chacha.c:79

CPU: 1 UID: 0 PID: 19289 Comm: syz.8.4005 Tainted: G        W           syzkaller #0 PREEMPT(none) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
=====================================================