CVE-2022-49259 (GCVE-0-2022-49259)
Vulnerability from cvelistv5
Published
2025-02-26 01:56
Modified
2025-05-04 08:33
Severity ?
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.
References
https://git.kernel.org/stable/c/b2001eb10f59363da930cdd6e086a2861986fa18
https://git.kernel.org/stable/c/84fe3ca6e7910beb47ec13509d484f84fa2a41ad
https://git.kernel.org/stable/c/0b5924a14d64487ebd51127b0358d06066ef5384
https://git.kernel.org/stable/c/efaa0e969261e97c1fdd8e0338e5dd3ba5b9219c
https://git.kernel.org/stable/c/cf0cb8686e55d9c022944bc6ba9e19e832889e83
https://git.kernel.org/stable/c/3d7e32c8da45957326f56937e0471c686d1a7711
https://git.kernel.org/stable/c/0f69288253e9fc7c495047720e523b9f1aba5712
Impacted products
Vendor Product Version
Linux Linux Version: 2c2086afc2b8b974fac32cb028e73dc27bfae442
Version: 2c2086afc2b8b974fac32cb028e73dc27bfae442
Version: 2c2086afc2b8b974fac32cb028e73dc27bfae442
Version: 2c2086afc2b8b974fac32cb028e73dc27bfae442
Version: 2c2086afc2b8b974fac32cb028e73dc27bfae442
Version: 2c2086afc2b8b974fac32cb028e73dc27bfae442
Version: 2c2086afc2b8b974fac32cb028e73dc27bfae442
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   Linux Linux Version: 4.16
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{
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: don\u0027t delete queue kobject before its children\n\nkobjects aren\u0027t supposed to be deleted before their child kobjects are\ndeleted.  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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:33:33.875Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        {
          "url": "https://git.kernel.org/stable/c/efaa0e969261e97c1fdd8e0338e5dd3ba5b9219c"
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        },
        {
          "url": "https://git.kernel.org/stable/c/0f69288253e9fc7c495047720e523b9f1aba5712"
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      "title": "block: don\u0027t delete queue kobject before its children",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49259",
    "datePublished": "2025-02-26T01:56:12.046Z",
    "dateReserved": "2025-02-26T01:49:39.296Z",
    "dateUpdated": "2025-05-04T08:33:33.875Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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