CVE-2026-90188
CVE CVE-2026-90188EUVD EUVD-2026-81781Published 2026-09-17T16:07:10.000Z
What the advisory describes
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).
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 6.6.157; 82f402fefa50f1675bf918bcd009981bd6b30ac8 <0b2faa330184340d9418ad2c627c2ae881772e33; 82f402fefa50f1675bf918bcd009981bd6b30ac8 <2882e1450fa4597811a951196e07553ea134eb31; patch: 6.12.110; patch: 6.1.188; patch: 7.2.6; patch: 6.18.52; patch: 7.3-rc1; 82f402fefa50f1675bf918bcd009981bd6b30ac8 <081cf37e8a0e00cd91d6df53172c9d928790a798; patch: 0; 82f402fefa50f1675bf918bcd009981bd6b30ac8 <665c94554ff0d5d88caae7f40c16c8e0a3369eda; 82f402fefa50f1675bf918bcd009981bd6b30ac8 <5a1c5ff3a49ba93a1fd0b70537e7a0164071760d; 4.13; 82f402fefa50f1675bf918bcd009981bd6b30ac8 <2b59484ac1e64dd78dbe8c6140891c6308085a75
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
Does this concern one of your customers?
This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.
Try it for 28 daysPatchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.