CVE-2021-46960 (GCVE-0-2021-46960)

Vulnerability from cvelistv5 – Published: 2024-02-27 18:46 – Updated: 2026-05-11 13:45
VLAI
Title
cifs: Return correct error code from smb2_get_enc_key
Summary
In the Linux kernel, the following vulnerability has been resolved: cifs: Return correct error code from smb2_get_enc_key Avoid a warning if the error percolates back up: [440700.376476] CIFS VFS: \\otters.example.com crypt_message: Could not get encryption key [440700.386947] ------------[ cut here ]------------ [440700.386948] err = 1 [440700.386977] WARNING: CPU: 11 PID: 2733 at /build/linux-hwe-5.4-p6lk6L/linux-hwe-5.4-5.4.0/lib/errseq.c:74 errseq_set+0x5c/0x70 ... [440700.397304] CPU: 11 PID: 2733 Comm: tar Tainted: G OE 5.4.0-70-generic #78~18.04.1-Ubuntu ... [440700.397334] Call Trace: [440700.397346] __filemap_set_wb_err+0x1a/0x70 [440700.397419] cifs_writepages+0x9c7/0xb30 [cifs] [440700.397426] do_writepages+0x4b/0xe0 [440700.397444] __filemap_fdatawrite_range+0xcb/0x100 [440700.397455] filemap_write_and_wait+0x42/0xa0 [440700.397486] cifs_setattr+0x68b/0xf30 [cifs] [440700.397493] notify_change+0x358/0x4a0 [440700.397500] utimes_common+0xe9/0x1c0 [440700.397510] do_utimes+0xc5/0x150 [440700.397520] __x64_sys_utimensat+0x88/0xd0
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 61cfac6f267dabcf2740a7ec8a0295833b28b5f5 , < e94851629c49c65b4fbb29a5725ddfd7988f8f20 (git)
Affected: 61cfac6f267dabcf2740a7ec8a0295833b28b5f5 , < e486f8397f3f14a7cadc166138141fdb14379a54 (git)
Affected: 61cfac6f267dabcf2740a7ec8a0295833b28b5f5 , < 93f3339b22ba17e66f0808737467b70ba087eaec (git)
Affected: 61cfac6f267dabcf2740a7ec8a0295833b28b5f5 , < aaa0faa5c28a91c362352d6b35dc3ed10df56fb0 (git)
Affected: 61cfac6f267dabcf2740a7ec8a0295833b28b5f5 , < f59a9242942fef0de7b926e438ba4eae65d4b4dd (git)
Affected: 61cfac6f267dabcf2740a7ec8a0295833b28b5f5 , < b399c1a3ea0b9d10047ff266d65533df7f15532f (git)
Affected: 61cfac6f267dabcf2740a7ec8a0295833b28b5f5 , < 83728cbf366e334301091d5b808add468ab46b27 (git)
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Linux Linux Affected: 4.11
Unaffected: 0 , < 4.11 (semver)
Unaffected: 4.14.233 , ≤ 4.14.* (semver)
Unaffected: 4.19.191 , ≤ 4.19.* (semver)
Unaffected: 5.4.118 , ≤ 5.4.* (semver)
Unaffected: 5.10.36 , ≤ 5.10.* (semver)
Unaffected: 5.11.20 , ≤ 5.11.* (semver)
Unaffected: 5.12.3 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-46960\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-02-27T19:04:06.860\",\"lastModified\":\"2024-12-11T14:47:28.957\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncifs: Return correct error code from smb2_get_enc_key\\n\\nAvoid a warning if the error percolates back up:\\n\\n[440700.376476] CIFS VFS: \\\\\\\\otters.example.com crypt_message: Could not get encryption key\\n[440700.386947] ------------[ cut here ]------------\\n[440700.386948] err = 1\\n[440700.386977] WARNING: CPU: 11 PID: 2733 at /build/linux-hwe-5.4-p6lk6L/linux-hwe-5.4-5.4.0/lib/errseq.c:74 errseq_set+0x5c/0x70\\n...\\n[440700.397304] CPU: 11 PID: 2733 Comm: tar Tainted: G           OE     5.4.0-70-generic #78~18.04.1-Ubuntu\\n...\\n[440700.397334] Call Trace:\\n[440700.397346]  __filemap_set_wb_err+0x1a/0x70\\n[440700.397419]  cifs_writepages+0x9c7/0xb30 [cifs]\\n[440700.397426]  do_writepages+0x4b/0xe0\\n[440700.397444]  __filemap_fdatawrite_range+0xcb/0x100\\n[440700.397455]  filemap_write_and_wait+0x42/0xa0\\n[440700.397486]  cifs_setattr+0x68b/0xf30 [cifs]\\n[440700.397493]  notify_change+0x358/0x4a0\\n[440700.397500]  utimes_common+0xe9/0x1c0\\n[440700.397510]  do_utimes+0xc5/0x150\\n[440700.397520]  __x64_sys_utimensat+0x88/0xd0\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: cifs: devuelve el c\u00f3digo de error correcto de smb2_get_enc_key Evite una advertencia si el error se repite: [440700.376476] CIFS VFS: \\\\\\\\otters.example.com crypt_message: no se pudo obtener la clave de cifrado [440700.386947] ------------[ cortar aqu\u00ed ]------------ [440700.386948] err = 1 [440700.386977] ADVERTENCIA: CPU: 11 PID: 2733 en / build/linux-hwe-5.4-p6lk6L/linux-hwe-5.4-5.4.0/lib/errseq.c:74 errseq_set+0x5c/0x70 ... [440700.397304] CPU: 11 PID: 2733 Comm: tar Contaminado: G OE 5.4.0-70-generic #78~18.04.1-Ubuntu... [440700.397334] Seguimiento de llamadas: [440700.397346] __filemap_set_wb_err+0x1a/0x70 [440700.397419] cifs_writepages+0x9c7/0xb30 [cifs ] [440700.397426] do_writepages+0x4b /0xe0 [440700.397444] __filemap_fdatawrite_range+0xcb/0x100 [440700.397455] filemap_write_and_wait+0x42/0xa0 [440700.397486] cifs_setattr+0x68b/0xf30 [cifs] [440700.39749 3] notify_change+0x358/0x4a0 [440700.397500] utimes_common+0xe9/0x1c0 [440700.397510] do_utimes+ 0xc5/0x150 [440700.397520] __x64_sys_utimensat+0x88/0xd0\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.11\",\"versionEndExcluding\":\"4.14.233\",\"matchCriteriaId\":\"3CEB4F43-643B-4BF2-BC3B-FB797EC75463\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.191\",\"matchCriteriaId\":\"5B6E6817-19A8-4C0A-8807-71DA48CF9191\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.118\",\"matchCriteriaId\":\"C83F5505-AF9D-4F2A-8D37-A8EB73ED772D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.36\",\"matchCriteriaId\":\"003E22D0-CA29-4338-8B35-0754C740074F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.11.20\",\"matchCriteriaId\":\"EEC03413-9760-46D4-AC1D-EB084A1D4111\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.12\",\"versionEndExcluding\":\"5.12.3\",\"matchCriteriaId\":\"F9D6B2DE-7E4A-4B3B-9AEE-3A2C5F23DA32\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/83728cbf366e334301091d5b808add468ab46b27\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/93f3339b22ba17e66f0808737467b70ba087eaec\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/aaa0faa5c28a91c362352d6b35dc3ed10df56fb0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b399c1a3ea0b9d10047ff266d65533df7f15532f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e486f8397f3f14a7cadc166138141fdb14379a54\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e94851629c49c65b4fbb29a5725ddfd7988f8f20\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f59a9242942fef0de7b926e438ba4eae65d4b4dd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/83728cbf366e334301091d5b808add468ab46b27\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/93f3339b22ba17e66f0808737467b70ba087eaec\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/aaa0faa5c28a91c362352d6b35dc3ed10df56fb0\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b399c1a3ea0b9d10047ff266d65533df7f15532f\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e486f8397f3f14a7cadc166138141fdb14379a54\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e94851629c49c65b4fbb29a5725ddfd7988f8f20\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f59a9242942fef0de7b926e438ba4eae65d4b4dd\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
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      "cveMetadata": "{\"cveId\": \"CVE-2021-46960\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T13:45:15.598Z\", \"dateReserved\": \"2024-02-27T18:42:55.941Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-27T18:46:59.919Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.