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CVE-2024-26584— net: tls: handle backlogging of crypto requests

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 net 模块在某些情况下会将异步回调调用两次。

CVSS 9.8 · Critical EPSS 0.74% · P53

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux a54667f6728c2714a400f3c884727da74b6d1717< 3ade391adc584f17b5570fd205de3ad029090368 affected
a54667f6728c2714a400f3c884727da74b6d1717< cd1bbca03f3c1d845ce274c0d0a66de8e5929f72 affected
a54667f6728c2714a400f3c884727da74b6d1717< 13eca403876bbea3716e82cdfe6f1e6febb38754 affected
a54667f6728c2714a400f3c884727da74b6d1717< ab6397f072e5097f267abf5cb08a8004e6b17694 affected
a54667f6728c2714a400f3c884727da74b6d1717< 8590541473188741055d27b955db0777569438e3 affected
4.16 affected
< 4.16 unaffected
5.15.160≤ 5.15.* unaffected
… +4 more rows
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I. Basic Information for CVE-2024-26584

Vulnerability Information
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Vulnerability Title
net: tls: handle backlogging of crypto requests
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: tls: handle backlogging of crypto requests Since we're setting the CRYPTO_TFM_REQ_MAY_BACKLOG flag on our requests to the crypto API, crypto_aead_{encrypt,decrypt} can return -EBUSY instead of -EINPROGRESS in valid situations. For example, when the cryptd queue for AESNI is full (easy to trigger with an artificially low cryptd.cryptd_max_cpu_qlen), requests will be enqueued to the backlog but still processed. In that case, the async callback will also be called twice: first with err == -EINPROGRESS, which it seems we can just ignore, then with err == 0. Compared to Sabrina's original patch this version uses the new tls_*crypt_async_wait() helpers and converts the EBUSY to EINPROGRESS to avoid having to modify all the error handling paths. The handling is identical.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 net 模块在某些情况下会将异步回调调用两次。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux a54667f6728c2714a400f3c884727da74b6d1717 ~ 3ade391adc584f17b5570fd205de3ad029090368 -
Linux Linux 4.16 -

II. Public POCs for CVE-2024-26584

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III. Intelligence Information for CVE-2024-26584

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Mailing List Discussions for CVE-2024-26584 (2)

Other References for CVE-2024-26584 (5)

Same Patch Batch · Linux · 2024-02-21 · 7 CVEs total

CVE-2024-26585 9.8 CRITICAL tls: fix race between tx work scheduling and socket close
CVE-2024-26583 9.8 CRITICAL tls: fix race between async notify and socket close
CVE-2024-26582 9.8 CRITICAL net: tls: fix use-after-free with partial reads and async decrypt
CVE-2023-52440 9.8 CRITICAL ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob()
CVE-2023-52442 9.1 CRITICAL ksmbd: validate session id and tree id in compound request
CVE-2023-52441 9.1 CRITICAL ksmbd: fix out of bounds in init_smb2_rsp_hdr()

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26584

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