===================================================== BUG: KMSAN: uninit-value in subshift lib/crypto/aes.c:149 [inline] BUG: KMSAN: uninit-value in aes_encrypt+0x12d5/0x1bd0 lib/crypto/aes.c:282 CPU: 0 PID: 17968 Comm: syz-executor.3 Not tainted 5.4.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x191/0x1f0 lib/dump_stack.c:113 kmsan_report+0x128/0x220 mm/kmsan/kmsan_report.c:108 __msan_warning+0x73/0xe0 mm/kmsan/kmsan_instr.c:245 subshift lib/crypto/aes.c:149 [inline] aes_encrypt+0x12d5/0x1bd0 lib/crypto/aes.c:282 aesti_encrypt+0xe8/0x130 crypto/aes_ti.c:31 crypto_cipher_encrypt_one include/linux/crypto.h:1763 [inline] crypto_cbcmac_digest_update+0x3cf/0x550 crypto/ccm.c:871 crypto_shash_update crypto/shash.c:107 [inline] shash_ahash_finup+0x659/0xb20 crypto/shash.c:276 shash_async_finup+0xbb/0x110 crypto/shash.c:291 crypto_ahash_op+0x1cd/0x6e0 crypto/ahash.c:368 crypto_ahash_finup+0x8c/0xb0 crypto/ahash.c:393 crypto_ccm_auth+0x14b2/0x1570 crypto/ccm.c:230 crypto_ccm_encrypt+0x283/0x840 crypto/ccm.c:309 crypto_aead_encrypt+0xf2/0x180 crypto/aead.c:99 tls_do_encryption net/tls/tls_sw.c:521 [inline] tls_push_record+0x341e/0x4e50 net/tls/tls_sw.c:730 bpf_exec_tx_verdict+0x1454/0x1c80 net/tls/tls_sw.c:770 tls_sw_sendmsg+0x158d/0x2710 net/tls/tls_sw.c:1033 inet6_sendmsg+0x2d8/0x2e0 net/ipv6/af_inet6.c:576 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] sock_write_iter+0x422/0x650 net/socket.c:989 call_write_iter include/linux/fs.h:1895 [inline] new_sync_write fs/read_write.c:483 [inline] __vfs_write+0xa2c/0xcb0 fs/read_write.c:496 vfs_write+0x481/0x920 fs/read_write.c:558 ksys_write+0x265/0x430 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write+0x92/0xb0 fs/read_write.c:620 __x64_sys_write+0x4a/0x70 fs/read_write.c:620 do_syscall_64+0xb6/0x160 arch/x86/entry/common.c:291 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x45a639 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f6bdbbc5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a639 RDX: 000000000000ff0e RSI: 0000000020000340 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6bdbbc66d4 R13: 00000000004caf0b R14: 00000000004e33b0 R15: 00000000ffffffff Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:151 [inline] kmsan_internal_chain_origin+0xbd/0x180 mm/kmsan/kmsan.c:319 __msan_chain_origin+0x6b/0xd0 mm/kmsan/kmsan_instr.c:179 __crypto_xor+0x1e8/0x1470 crypto/algapi.c:992 crypto_xor include/crypto/algapi.h:213 [inline] crypto_cbcmac_digest_update+0x2ba/0x550 crypto/ccm.c:865 crypto_shash_update crypto/shash.c:107 [inline] shash_ahash_finup+0x659/0xb20 crypto/shash.c:276 shash_async_finup+0xbb/0x110 crypto/shash.c:291 crypto_ahash_op+0x1cd/0x6e0 crypto/ahash.c:368 crypto_ahash_finup+0x8c/0xb0 crypto/ahash.c:393 crypto_ccm_auth+0x14b2/0x1570 crypto/ccm.c:230 crypto_ccm_encrypt+0x283/0x840 crypto/ccm.c:309 crypto_aead_encrypt+0xf2/0x180 crypto/aead.c:99 tls_do_encryption net/tls/tls_sw.c:521 [inline] tls_push_record+0x341e/0x4e50 net/tls/tls_sw.c:730 bpf_exec_tx_verdict+0x1454/0x1c80 net/tls/tls_sw.c:770 tls_sw_sendmsg+0x158d/0x2710 net/tls/tls_sw.c:1033 inet6_sendmsg+0x2d8/0x2e0 net/ipv6/af_inet6.c:576 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] sock_write_iter+0x422/0x650 net/socket.c:989 call_write_iter include/linux/fs.h:1895 [inline] new_sync_write fs/read_write.c:483 [inline] __vfs_write+0xa2c/0xcb0 fs/read_write.c:496 vfs_write+0x481/0x920 fs/read_write.c:558 ksys_write+0x265/0x430 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write+0x92/0xb0 fs/read_write.c:620 __x64_sys_write+0x4a/0x70 fs/read_write.c:620 do_syscall_64+0xb6/0x160 arch/x86/entry/common.c:291 entry_SYSCALL_64_after_hwframe+0x63/0xe7 Uninit was created at: kmsan_save_stack_with_flags+0x3f/0x90 mm/kmsan/kmsan.c:151 kmsan_internal_alloc_meta_for_pages mm/kmsan/kmsan_shadow.c:362 [inline] kmsan_alloc_page+0x153/0x360 mm/kmsan/kmsan_shadow.c:391 __alloc_pages_nodemask+0x149d/0x60c0 mm/page_alloc.c:4796 alloc_pages_current+0x68d/0x9a0 mm/mempolicy.c:2188 alloc_pages include/linux/gfp.h:511 [inline] skb_page_frag_refill+0x2b0/0x580 net/core/sock.c:2376 sk_page_frag_refill+0xa4/0x330 net/core/sock.c:2396 sk_msg_alloc+0x203/0x1050 net/core/skmsg.c:37 tls_alloc_encrypted_msg net/tls/tls_sw.c:284 [inline] tls_sw_do_sendpage net/tls/tls_sw.c:1157 [inline] tls_sw_sendpage+0xb42/0x1be0 net/tls/tls_sw.c:1229 inet_sendpage+0x1ab/0x2c0 net/ipv4/af_inet.c:821 kernel_sendpage net/socket.c:3682 [inline] sock_sendpage+0x1f1/0x2e0 net/socket.c:935 pipe_to_sendpage+0x342/0x470 fs/splice.c:449 splice_from_pipe_feed fs/splice.c:500 [inline] __splice_from_pipe+0x484/0xe80 fs/splice.c:624 splice_from_pipe fs/splice.c:659 [inline] generic_splice_sendpage+0x1d5/0x2d0 fs/splice.c:829 do_splice_from fs/splice.c:848 [inline] do_splice fs/splice.c:1155 [inline] __do_sys_splice fs/splice.c:1425 [inline] __se_sys_splice+0x2141/0x3320 fs/splice.c:1405 __x64_sys_splice+0x6e/0x90 fs/splice.c:1405 do_syscall_64+0xb6/0x160 arch/x86/entry/common.c:291 entry_SYSCALL_64_after_hwframe+0x63/0xe7 =====================================================