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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-90188

null_blk: free global tag_set on init error path

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: null_blk: free global tag_set on init error path If shared_tags is enabled, null_setup_tagset() allocates the global tag_set via null_init_global_tag_set(). If device creation later fails, err_dev destroys the default devices and calls unregister_blkdev(), but never frees the global tag_set. Since module init failed, null_exit() is never invoked, so the global tag_set's tags and maps are permanently leaked. Free the global tag_set in err_dev, matching null_exit() which does if (tag_set.ops) blk_mq_free_tag_set(&tag_set).

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 82f402fefa50f1675bf918bcd009981bd6b30ac8 to < 0b2faa330184340d9418ad2c627c2ae881772e33affected
  • 82f402fefa50f1675bf918bcd009981bd6b30ac8 to < 665c94554ff0d5d88caae7f40c16c8e0a3369edaaffected
  • 82f402fefa50f1675bf918bcd009981bd6b30ac8 to < 2882e1450fa4597811a951196e07553ea134eb31affected
  • 82f402fefa50f1675bf918bcd009981bd6b30ac8 to < 2b59484ac1e64dd78dbe8c6140891c6308085a75affected
  • 82f402fefa50f1675bf918bcd009981bd6b30ac8 to < 081cf37e8a0e00cd91d6df53172c9d928790a798affected
  • 82f402fefa50f1675bf918bcd009981bd6b30ac8 to < 5a1c5ff3a49ba93a1fd0b70537e7a0164071760daffected

Linux Linux

Default version status: affected

  • 4.13affected
  • 0 to < 4.13unaffected
  • 6.1.188 to ≤ 6.1.*unaffected
  • 6.6.157 to ≤ 6.6.*unaffected
  • 6.12.110 to ≤ 6.12.*unaffected
  • 6.18.52 to ≤ 6.18.*unaffected
  • 7.2.6 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References