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CVE-2022-49259 (GCVE-0-2022-49259)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:56 – Updated: 2026-05-11 18:56
VLAI
Title
block: don't delete queue kobject before its children
Summary
In the Linux kernel, the following vulnerability has been resolved: block: don't delete queue kobject before its children kobjects aren't supposed to be deleted before their child kobjects are deleted. Apparently this is usually benign; however, a WARN will be triggered if one of the child kobjects has a named attribute group: sysfs group 'modes' not found for kobject 'crypto' WARNING: CPU: 0 PID: 1 at fs/sysfs/group.c:278 sysfs_remove_group+0x72/0x80 ... Call Trace: sysfs_remove_groups+0x29/0x40 fs/sysfs/group.c:312 __kobject_del+0x20/0x80 lib/kobject.c:611 kobject_cleanup+0xa4/0x140 lib/kobject.c:696 kobject_release lib/kobject.c:736 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x53/0x70 lib/kobject.c:753 blk_crypto_sysfs_unregister+0x10/0x20 block/blk-crypto-sysfs.c:159 blk_unregister_queue+0xb0/0x110 block/blk-sysfs.c:962 del_gendisk+0x117/0x250 block/genhd.c:610 Fix this by moving the kobject_del() and the corresponding kobject_uevent() to the correct place.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2c2086afc2b8b974fac32cb028e73dc27bfae442 , < b2001eb10f59363da930cdd6e086a2861986fa18 (git)
Affected: 2c2086afc2b8b974fac32cb028e73dc27bfae442 , < 84fe3ca6e7910beb47ec13509d484f84fa2a41ad (git)
Affected: 2c2086afc2b8b974fac32cb028e73dc27bfae442 , < 0b5924a14d64487ebd51127b0358d06066ef5384 (git)
Affected: 2c2086afc2b8b974fac32cb028e73dc27bfae442 , < efaa0e969261e97c1fdd8e0338e5dd3ba5b9219c (git)
Affected: 2c2086afc2b8b974fac32cb028e73dc27bfae442 , < cf0cb8686e55d9c022944bc6ba9e19e832889e83 (git)
Affected: 2c2086afc2b8b974fac32cb028e73dc27bfae442 , < 3d7e32c8da45957326f56937e0471c686d1a7711 (git)
Affected: 2c2086afc2b8b974fac32cb028e73dc27bfae442 , < 0f69288253e9fc7c495047720e523b9f1aba5712 (git)
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Linux Linux Affected: 4.16
Unaffected: 0 , < 4.16 (semver)
Unaffected: 4.19.238 , ≤ 4.19.* (semver)
Unaffected: 5.4.189 , ≤ 5.4.* (semver)
Unaffected: 5.10.110 , ≤ 5.10.* (semver)
Unaffected: 5.15.33 , ≤ 5.15.* (semver)
Unaffected: 5.16.19 , ≤ 5.16.* (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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Apparently this is usually benign; however, a WARN will be\\ntriggered if one of the child kobjects has a named attribute group:\\n\\n    sysfs group \u0027modes\u0027 not found for kobject \u0027crypto\u0027\\n    WARNING: CPU: 0 PID: 1 at fs/sysfs/group.c:278 sysfs_remove_group+0x72/0x80\\n    ...\\n    Call Trace:\\n      sysfs_remove_groups+0x29/0x40 fs/sysfs/group.c:312\\n      __kobject_del+0x20/0x80 lib/kobject.c:611\\n      kobject_cleanup+0xa4/0x140 lib/kobject.c:696\\n      kobject_release lib/kobject.c:736 [inline]\\n      kref_put include/linux/kref.h:65 [inline]\\n      kobject_put+0x53/0x70 lib/kobject.c:753\\n      blk_crypto_sysfs_unregister+0x10/0x20 block/blk-crypto-sysfs.c:159\\n      blk_unregister_queue+0xb0/0x110 block/blk-sysfs.c:962\\n      del_gendisk+0x117/0x250 block/genhd.c:610\\n\\nFix this by moving the kobject_del() and the corresponding\\nkobject_uevent() to the correct place.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bloquo: no eliminar la cola kobject antes de que sus kobjects hijos no se eliminen antes de que se eliminen sus kobjects hijos. Aparentemente, esto suele ser benigno; Sin embargo, se activar\u00e1 una ADVERTENCIA si uno de los kobjects secundarios tiene un grupo de atributos con nombre: sysfs group \u0027modes\u0027 not found for kobject \u0027crypto\u0027 ADVERTENCIA: CPU: 0 PID: 1 en fs/sysfs/group.c:278 sysfs_remove_group+0x72/0x80 ... Seguimiento de llamadas: sysfs_remove_groups+0x29/0x40 fs/sysfs/group.c:312 __kobject_del+0x20/0x80 lib/kobject.c:611 kobject_cleanup+0xa4/0x140 lib/kobject.c:696 kobject_release lib/kobject.c:736 [en l\u00ednea] kref_put include/linux/kref.h:65 [en l\u00ednea] kobject_put+0x53/0x70 lib/kobject.c:753 blk_crypto_sysfs_unregister+0x10/0x20 block/blk-crypto-sysfs.c:159 blk_unregister_queue+0xb0/0x110 block/blk-sysfs.c:962 del_gendisk+0x117/0x250 block/genhd.c:610 Solucione esto moviendo kobject_del() y el kobject_uevent() correspondiente al lugar 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    "redhat_vex": {
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      "current_release_date": "2026-06-30T10:39:25+00:00",
      "cve": "CVE-2022-49259",
      "id": "CVE-2022-49259",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "286",
      "product_status:known_affected": "66",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: block: don\u0027t delete queue kobject before its children",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49259.json",
      "version": "3"
    },
    "suse_vex": {
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      "current_release_date": "2026-09-02T02:05:20Z",
      "cve": "CVE-2022-49259",
      "id": "CVE-2022-49259",
      "initial_release_date": "2025-02-27T03:09:50Z",
      "product_status:known_affected": "360",
      "product_status:known_not_affected": "291",
      "product_status:recommended": "361",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49259",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49259.json",
      "version": "57"
    }
  }
}



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Tags
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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.