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CVE-2025-37750: Linux

9.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: smb: client: fix UAF in decryption with multichannel After commit f7025d861694 ("smb: client: allocate crypto only for primary server") and commit b0abcd65ec54 ("smb: client: fix UAF in async decryption"), the channels started reusing AEAD TFM from primary channel to perform synchronous decryption, but that can't done as there could be multiple cifsd threads (one per channel) simultaneously accessing it to perform decryption. This fixes the following KASAN splat when running fstest generic/249 with 'vers=3.1.1,multichannel,max_channels=4,seal' against Windows Server 2022: BUG: KASAN: slab-use-after-free in gf128mul_4k_lle+0xba/0x110 Read of size 8 at addr ffff8881046c18a0 by task cifsd/986 CPU: 3 UID: 0 PID: 986 Comm: cifsd Not tainted 6.15.0-rc1 #1 PREEMPT(voluntary) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-3.fc41 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x5d/0x80 print_report+0x156/0x528 ? gf128mul_4k_lle+0xba/0x110 ? __virt_addr_valid+0x145/0x300 ? __phys_addr+0x46/0x90 ? gf128mul_4k_lle+0xba/0x110 kasan_report+0xdf/0x1a0 ? gf128mul_4k_lle+0xba/0x110 gf128mul_4k_lle+0xba/0x110 ghash_update+0x189/0x210 shash_ahash_update+0x295/0x370 ? __pfx_shash_ahash_update+0x10/0x10 ? __pfx_shash_ahash_update+0x10/0x10 ? __pfx_extract_iter_to_sg+0x10/0x10 ? ___kmalloc_large_node+0x10e/0x180 ? __asan_memset+0x23/0x50 crypto_ahash_update+0x3c/0xc0 gcm_hash_assoc_remain_continue+0x93/0xc0 crypt_message+0xe09/0xec0 [cifs] ? __pfx_crypt_message+0x10/0x10 [cifs] ? _raw_spin_unlock+0x23/0x40 ? __pfx_cifs_readv_from_socket+0x10/0x10 [cifs] decrypt_raw_data+0x229/0x380 [cifs] ? __pfx_decrypt_raw_data+0x10/0x10 [cifs] ? __pfx_cifs_read_iter_from_socket+0x10/0x10 [cifs] smb3_receive_transform+0x837/0xc80 [cifs] ? __pfx_smb3_receive_transform+0x10/0x10 [cifs] ? __pfx___might_resched+0x10/0x10 ? __pfx_smb3_is_transform_hdr+0x10/0x10 [cifs] cifs_demultiplex_thread

    Засегнати продукти

    • Linux Linux: bce966530fd5542bbb422cb45ecb775f7a1a6bc3 преди 4e94c8cc7fa220ac50d6a3ce9a63d227696c95b8; c8c6af46286a513769650935ff858fc67cf51a6d преди 08160de2a65227e5b64fcb6765cd936ec384ee93; b0abcd65ec545701b8793e12bc27dc98042b151a преди aa5a1e4b882964eb79d5b5d1d1e8a1a5efbb1d15; b0abcd65ec545701b8793e12bc27dc98042b151a преди e859b216d94668bc66330e61be201234f4413d1a; b0abcd65ec545701b8793e12bc27dc98042b151a преди 950557922c1298464749c216d8763e97faf5d0a6; b0abcd65ec545701b8793e12bc27dc98042b151a преди 9502dd5c7029902f4a425bf959917a5a9e7c0e50; 8f14a476abba13144df5434871a7225fd29af633; ef51c0d544b1518b35364480317ab6d3468f205d; 0809fb86ad13b29e1d6d491364fc7ea4fb545995; 538c26d9bf70c90edc460d18c81008a4e555925a; 6.1.128 преди 6.1.191; 5.10.237 преди 5.11; 5.15.181 преди 5.16; 6.11.4 преди 6.12
    • Linux Linux: 6.12; преди 6.12; 6.1.191 до 6.1.*; 6.12.24 до 6.12.*; 6.13.12 до 6.13.*; 6.14.3 до 6.14.*; от 6.15 нататък

    История

    • 1 май 2025 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2025-37750: Linux | freedomonline.bg